My research consists in developing new materials and efficient processes for the storage of thermal energy in the field of refrigeration. The various international regulations tend to limit the use and production of refrigerants with high greenhouse power and the use of neutral and energy-efficient fluids is therefore encouraged. The use of clathrates hydrates can meet this constraint. More precisely, my research work consists in characterizing from the point of view of material different types of hydrates (thermodynamic, thermal, kinetic, rheological properties ...) but also from the system point of view by the determination of the performances of the processes using this material under different possible forms. This research work makes it possible to compare experimental data with numerical modeling. I am guest researcher at INRAE in the Refrigeration Process Engineering for food safety and environnement Research Unit (FRISE). https://orcid.org/0000-0002-2156-6674
Yasmine Salehy; Hong Minh Hoang; Pascal Clain; Didier Dalmazzone; Laurence Fournaison; Anthony Delahaye
Sustainability and operational performance assessment of supermarket air-conditioning architectures using secondary fluids and slurries Journal Article
In: Thermal Science and Engineering Progress, vol. 50, pp. 102564, 2024.
@article{salehy_2921,
title = {Sustainability and operational performance assessment of supermarket air-conditioning architectures using secondary fluids and slurries},
author = {Yasmine Salehy and Hong Minh Hoang and Pascal Clain and Didier Dalmazzone and Laurence Fournaison and Anthony Delahaye},
url = {https://www.sciencedirect.com/science/article/pii/S2451904924001823?via%3Dihub},
year = {2024},
date = {2024-05-01},
journal = {Thermal Science and Engineering Progress},
volume = {50},
pages = {102564},
abstract = {Secondary loop architectures and phase change material (PCM) slurries could reduce the environmental impact of refrigeration and air-conditioning systems by lowering significantly the amount of primary refrigerants. However, there is a barrier to their industrial development due to the lack of studies on their behaviour in operational scenarios. The present work analyses the behaviour of different secondary loop systems in an industrial context, here the air conditioning of a supermarket in France. For this purpose, a generic approach, developed in previous work, is proposed to assess their potential of adoption. This modelling approach is able to describe the sustainability and operational performance (energy, environmental, economic, social) of refrigeration systems. After validation of the model on real architecture and components, five standard or new architectures were tested: centralized direct expansion system; secondary loop system with ethylene glycol water; secondary loop system with ice slurries, TBPB hydrate slurries or CO2 hydrate slurries. The main results of this study show that new secondary systems using hydrate slurries have better cooling energy performance than direct expansion or classical brine / ice slurry secondary systems. Moreover, even including pumping power, the life cycle climate performance of secondary loop systems is much better than that of direct expansion systems. However, the total cost of ownership of direct expansion systems is lower than that of secondary systems, but with little differences for smaller pipes. Finally, trade-offs between several performances can be proposed. For example, some architectures with suitable pipe diameters could meet TCO/LCCP-based and CAPEX/pumping-based trade-offs.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Walid Samah; Pascal Clain; François Rioual; Laurence Fournaison; Anthony Delahaye
In: Applied Thermal Engineering, vol. 236, no. Part A, pp. 121463, 2024.
@article{samah_2410,
title = {Investigation of ice detachment by a liquid jet on various submerged surfaces for the development of ice slurry generators without mechanical scraping},
author = {Walid Samah and Pascal Clain and François Rioual and Laurence Fournaison and Anthony Delahaye},
url = {https://www.sciencedirect.com/science/article/pii/S1359431123014928},
year = {2024},
date = {2024-01-01},
journal = {Applied Thermal Engineering},
volume = {236},
number = {Part A},
pages = {121463},
abstract = {Ice slurry is an alternative method to reduce the quantity and emission of greenhouse refrigerants, as well as control electrical energy consumption. However, the production of ice slurry requires the use of scraped-surface generators, which are costly to maintain and consume high mechanical energy. Therefore, studying the icephobic behavior of surfaces is of interest to significantly reduce ice adhesion and facilitate detachment without the need for mechanical scrapers. This study focuses on the growth, adhesion, and detachment phenomena of ice by liquid jets on different types of surfaces (hydrophilic, hydrophobic, and superhydrophobic) immersed in a 10 wt% ethanol/water mixture. A liquid jet is used to detach the ice layer from the surfaces, with a velocity ranging from 0 to 2.87 m s?1, and the surface temperature varies from 25 °C to approximately -9 °C. The results show that ice adheres less to hydrophilic and hydrophobic surfaces compared to superhydrophobic surfaces. The use of PTFE-treated aluminum surfaces (hydrophobic) reduces the required flow velocity to detach the ice layer by half compared to untreated aluminum surfaces (hydrophilic). An ANSYS® Fluent numerical model was developed to simulate the evolution of turbulent velocities of immersed liquid jets, and a semi-empirical model was designed to estimate the detachment forces of soft ice from hydrophilic surfaces (untreated aluminum). Two types of ice detachment from surfaces were identified: adhesive detachment and cohesive detachment.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Véronique Osswald; Pascal Clain; Laurence Fournaison; Anthony Delahaye
Experimental monitoring of CO2 hydrate slurry crystallization by heat flux rate determination in a jacketed reactor Journal Article
In: International Journal Of Heat And Mass Transfer, vol. 217, pp. 124665, 2023.
@article{osswald_2464,
title = {Experimental monitoring of CO2 hydrate slurry crystallization by heat flux rate determination in a jacketed reactor},
author = {Véronique Osswald and Pascal Clain and Laurence Fournaison and Anthony Delahaye},
url = {https://www.sciencedirect.com/science/article/pii/S0017931023008104},
year = {2023},
date = {2023-09-01},
journal = {International Journal Of Heat And Mass Transfer},
volume = {217},
pages = {124665},
abstract = {CO2 hydrate slurries are promising phase change materials for secondary refrigeration applications. However, the difficulty of experimentally evaluating the crystallization kinetic of slurries limits their industrial use. Hydrate crystallization kinetics monitoring performs traditionally by a reactor mass balance. However, this method requires assumptions on CO2 liquid phase concentration and the hydration number. This work outlines the development of a specific method to determine kinetics thanks to the direct measure of heat flow through the reactor jacket and its evaluation compared with the mass balance method. The results of each method are then obtained by testing the two kinetic parameters of stirring speed and propeller type. The final hydrate mass fractions obtained with both methods are in good agreement, but the kinetic obtained by the mass balance method is faster than by the heat balance method.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Yasmine Salehy; Pascal Clain; Amokrane Boufares; Nada Chami; Jean-Philippe Torré; Didier Dalmazzone; Laurence Fournaison; Anthony Delahaye
In: Chemical Engineering Science, vol. 275, pp. 118716, 2023.
@article{salehy_2291,
title = {Rheological properties of CO2 hydrate slurries in presence of Dioctyl sodium sulfosuccinate (AOT) in a dynamic loop for refrigeration application},
author = {Yasmine Salehy and Pascal Clain and Amokrane Boufares and Nada Chami and Jean-Philippe Torré and Didier Dalmazzone and Laurence Fournaison and Anthony Delahaye},
url = {https://www.sciencedirect.com/science/article/pii/S0009250923002725?via%3Dihub},
year = {2023},
date = {2023-07-01},
journal = {Chemical Engineering Science},
volume = {275},
pages = {118716},
abstract = {Recent studies have shown real potential for using hydrate slurries as a secondary fluid in indirect refrigeration systems. However, pipeline clogging problems can appear due to hydrate agglomeration. Additives are generally used to counteract these problems. In this study, rheological properties of CO2 hydrate slurries in the presence of an additive Dioctyl sodium sulfosuccinate (AOT) are investigated. The capillary viscometer method is used to determine the fluid behaviour and the AOT impact on the slurry rheology. A dynamic loop is set up to collect experimental pressure drop and volume flow rate data. Based on the Rabinowitch and Mooney approach and Herschel-Bulkley model to determine the rheological properties, a shear-thinning behaviour was observed. The importance of the behaviour index choice in the procedure is discussed. Finally, the results obtained with AOT are compared with pre-existing studies. The present study highlights the AOT potential to significantly improve the CO2 hydrate slurries properties.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Walid Samah; Pascal Clain; François Rioual; Laurence Fournaison; Anthony Delahaye
Review on ice crystallization and adhesion to optimize ice slurry generators without moving components Journal Article
In: Applied Thermal Engineering, vol. 223, pp. 119974, 2023.
@article{samah_2080,
title = {Review on ice crystallization and adhesion to optimize ice slurry generators without moving components},
author = {Walid Samah and Pascal Clain and François Rioual and Laurence Fournaison and Anthony Delahaye},
url = {https://www-sciencedirect-com.devinci.idm.oclc.org/science/article/pii/S1359431123000030},
year = {2023},
date = {2023-03-01},
journal = {Applied Thermal Engineering},
volume = {223},
pages = {119974},
abstract = {The current climate crisis requires a radical reduction in energy consumption and greenhouse gas emissions. For the refrigeration industry, secondary refrigeration is one of the most accessible solutions to reduce the use of refrigerants with high greenhouse gas content. In addition, the use of low environmental impact two-phase secondary fluids, namely PCM (phase change material) slurries, such as ice slurries and gas hydrate slurries, can limit the electrical energy consumption involved in the process. Currently, the industry's most commonly used ice slurry production systems are scraped surface and supercooling generators. These have some disadvantages, such as maintenance costs and energy consumption. An ice slurry generator is considered efficient if it meets three criteria: continuous production, low energy consumption and reliable operation. Optimizing ice slurry production with generators without moving components (scraped surface) could be a solution to meet these criteria. The objective of this review is to present a critical analysis of ice slurry production optimization methods proposed in the literature. These methods aim either to prevent ice nucleation to produce supercooled water with a high supercooling degree, or to reduce the adhesion of the ice to the generator walls to facilitate its removal by flow or by external forces (gravity and buoyancy).},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Nada Chami; Yasmine Salehy; Dennis Burgner; Pascal Clain; Didier Dalmazzone; Anthony Delahaye; Laurence Fournaison
Rheological study of mixed cyclopentane + CO2 hydrate slurry in a dynamic loop for refrigeration systems Journal Article
In: Energy, vol. 263, pp. 125661, 2023.
@article{chami_1961,
title = {Rheological study of mixed cyclopentane + CO2 hydrate slurry in a dynamic loop for refrigeration systems},
author = {Nada Chami and Yasmine Salehy and Dennis Burgner and Pascal Clain and Didier Dalmazzone and Anthony Delahaye and Laurence Fournaison},
url = {https://www.sciencedirect.com/science/article/pii/S0360544222025476},
year = {2023},
date = {2023-01-01},
journal = {Energy},
volume = {263},
pages = {125661},
abstract = {The use of CO2 hydrates as phase change materials is promising for secondary loop refrigeration, as these compounds present adjustable dissociation temperature that can be higher than 273.15 K and have high enthalpy of dissociation. In the present work, by using various promoters, cyclopentane (CP) in this study, the formation pressure of hydrates may be significantly lowered than CO2 hydrates. For their application as a secondary refrigerant, the rheological properties of mixed CP + CO2 hydrate slurry need to be controlled. The flow properties of CP and mixed CP + CO2 hydrate slurries were studied in a dynamic flow loop at different cyclopentane contents ranging from 3 wt% to 15 wt%, using a capillary viscometer based on Rabinowitch and Mooney equation. Rheological parameters (viscosity, flow behavior...) related to these two slurries were compared. The experimental results demonstrate that CP and mixed CP + CO2 hydrates slurries exhibit a shear thinning behavior and the viscosity values vary between 3 and 12 mPa.s-1 at [100-1000 s?1] for CP hydrates slurries and between 2 and 10 mPa s?1 at [100-1200 s?1] for CP + CO2 hydrates slurries. CP hydrate and CP + CO2 hydrate slurry viscosity is close to that of TBPB hydrate and lower than that of CO2 hydrate. Moreover, mixed CP + CO2 have shown a time-evolution of the rheological behavior.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Walid Samah; Pascal Clain; François Rioual; Laurence Fournaison; Anthony Delahaye
Experimental investigation on the wetting behavior of a superhydrophobic surface under controlled temperature and humidity Journal Article
In: Colloids And Surfaces A-Physicochemical And Engineering Aspects, vol. 656, pp. 130451, 2023.
@article{samah_2025,
title = {Experimental investigation on the wetting behavior of a superhydrophobic surface under controlled temperature and humidity},
author = {Walid Samah and Pascal Clain and François Rioual and Laurence Fournaison and Anthony Delahaye},
url = {https://www.sciencedirect.com/science/article/pii/S0927775722022063},
year = {2023},
date = {2023-01-01},
journal = {Colloids And Surfaces A-Physicochemical And Engineering Aspects},
volume = {656},
pages = {130451},
abstract = {Superhydrophobic surfaces (SHS) are of great interest in various industrial fields. However, the application of these surfaces in cold, humid and submerged environments (as in the case of ice slurry production) sometimes presents problems related to the loss of their superhydrophobic properties. This paper presents an experimental study in order to characterize the wetting behavior of a surface coated with a commercial superhydrophobic "Ultra Ever Dry" (UED) coating at different surface temperatures (from 22 °C to ? 13 °C) and relative humidity (13%, 20%, 30%, 40% and 50%). Three methods are developed to characterize the wetting behavior. The first method consists in depositing a water drop on the cooled superhydrophobic UED surface. The objective is to characterize the static wetting behavior (evolution of contact angles) during the cooling of the surface for different relative humidity. The second method consists in dropping a water drop on the cooled UED superhydrophobic surface with an impact velocity of 1 m s?1. This method allows the dynamic behavior of the wetting (impact and rebound of the drop) to be characterized at different temperatures. The third method, consists in studying the effect of the immersion of the SHS in a volume of water cooled until supercooling then freezing. The aim is to analyze the wetting behavior in immersion at low temperature. The results of the static wetting study show that the superhydrophobic coating loses its non-wetting properties at temperatures below 13 °C for a relative humidity between 13% and 50% due to condensation on the surface. The results of the dynamic wetting study show that the superhydrophobic coating has poor resistance to water drop impact at surface temperatures below 4 °C. The wetting transition from Cassie to Wenzel state in low temperature immersion is caused by ice formation. The wettability state influences the morphology of the ice produced after freezing.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Fatima Benmesbah; Pascal Clain; Olivia Fandino; Véronique Osswald; Laurence Fournaison; Christophe Dicharry; Anthony Delahaye
Calorimetric study of carbon dioxide (CO2) hydrate formation and dissociation processes in porous media Journal Article
In: Chemical Engineering Science, vol. 264, pp. 118108, 2022.
@article{benmesbah_1960,
title = {Calorimetric study of carbon dioxide (CO2) hydrate formation and dissociation processes in porous media},
author = {Fatima Benmesbah and Pascal Clain and Olivia Fandino and Véronique Osswald and Laurence Fournaison and Christophe Dicharry and Anthony Delahaye},
url = {https://www.sciencedirect.com/science/article/pii/S0009250922006923},
year = {2022},
date = {2022-10-01},
journal = {Chemical Engineering Science},
volume = {264},
pages = {118108},
abstract = {Understanding the formation and dissociation mechanisms of gas hydrate in porous media is important for the development of new energy-efficient and environmentally friendly technologies related to cold storage as they provide significant latent heat and energy density at suitable phase change temperature. The challenge is to understand the interactions between gas hydrates and the chosen storage media in order to assess the operating conditions likely to optimize time and energy consumption in cold production and storage systems. In this work, CO2 hydrates formation and dissociation are investigated in two morphologically different porous materials: sand and silica gels. A calorimetric approach is applied to study both the CO2 hydrate formation kinetics, particularly the induction time, and the amount of hydrate formed for each of the two porous materials. The experiments are performed using a differential thermal analysis device with two identical measuring cells. The present work is focused on assessing the effect of key factors like water saturation, particle size and the morphology of porous media on CO2 hydrate formation and dissociation processes. Overall, the results do not show a statistically significant correlation between these factors and the induction time. Interestingly, the results obtained with dual porous silica gel showed a higher amount of hydrate formed compared to those with sand for similar initial pressure, temperature and water content conditions. This result may be due to the fact that silica gels provide higher surface area due to their smaller particle size (20-45 µm vs 80-450 µm for sand), and the presence of internal pore volume in silica gel particles.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Nada Chami; Sabrina Bendjenni; Pascal Clain; Véronique Osswald; Anthony Delahaye; Laurence Fournaison; Didier Dalmazzone
In: Chemical Engineering Journal, vol. 244, pp. 116790, 2021.
@article{chami_1564,
title = {Thermodynamic characterization of mixed gas hydrates in the presence of cyclopentane as guest molecule for an application in secondary refrigeration},
author = {Nada Chami and Sabrina Bendjenni and Pascal Clain and Véronique Osswald and Anthony Delahaye and Laurence Fournaison and Didier Dalmazzone},
url = {https://www.sciencedirect.com/science/article/pii/S0009250921003559},
year = {2021},
date = {2021-11-01},
journal = {Chemical Engineering Journal},
volume = {244},
pages = {116790},
abstract = {Gas hydrates have drawn the attention of many scientists because of their potential role in energy applications. By using some thermodynamic promoters, it is possible to form hydrates at reduced pressure and near ambient temperature, which are suitable formation conditions for most industries. In this study, a high pressure micro differential scanning calorimeter was used to measure the dissociation conditions of mixed cyclopentane (c-C5H10) + CO2 hydrates in the system composed of liquid water + liquid hydrocarbon + hydrate + vapour, in a pressure range of 0 to 4.3 MPa in a temperature range of 280 to 292 K. The analysis of the heat flow curve allowed the direct determination of the dissociation enthalpy of c-C5H10 + CO2 hydrates (e.g., ?H=462.5±1.5 kJ. kg-1 water at equilibrium pressure 0.25 MPa) and the average mass heat capacity of c-C5H10 + CO2 hydrates in a temperature range o 277.9-281.2 K (CpH = 1479.09 ± 137.43 J. K-1. kg-1 hydrate at 0.25 MPa).},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Fatima Benmesbah; Livio Ruffine; Pascal Clain; Véronique Osswald; Olivia Fandino; Laurence Fournaison; Anthony Delahaye
Methane Hydrate Formation and Dissociation in Sand Media: Effect of Water Saturation, Gas Flowrate and Particle Size Journal Article
In: Energies, vol. 13, no. 19, pp. 5200, 2020.
@article{benmesbah_1563,
title = {Methane Hydrate Formation and Dissociation in Sand Media: Effect of Water Saturation, Gas Flowrate and Particle Size},
author = {Fatima Benmesbah and Livio Ruffine and Pascal Clain and Véronique Osswald and Olivia Fandino and Laurence Fournaison and Anthony Delahaye},
url = {https://www.mdpi.com/1996-1073/13/19/5200},
year = {2020},
date = {2020-10-01},
journal = {Energies},
volume = {13},
number = {19},
pages = {5200},
abstract = {Assessing the influence of key parameters governing the formation of hydrates and determining the capacity of the latter to store gaseous molecules is needed to improve our understanding of the role of natural gas hydrates in the oceanic methane cycle. Such knowledge will also support the development of new industrial processes and technologies such as those related to thermal energy storage. In this study, high-pressure laboratory methane hydrate formation and dissociation experiments were carried out in a sandy matrix at a temperature around 276.65 K. Methane was continuously injected at constant flowrate to allow hydrate formation over the course of the injection step. The influence of water saturation, methane injection flowrate and particle size on hydrate formation kinetics and methane storage capacity were investigated. Six water saturations (10.8%, 21.6%, 33%, 43.9%, 55% and 66.3%), three gas flowrates (29, 58 and 78 mLn min?1) and three classes of particle size (80-140, 315-450 and 80-450 µm) were tested, and the resulting data were tabulated. Overall, the measured induction time obtained at 53-57% water saturation has an average value of 58 ± 14 min minutes with clear discrepancies that express the stochastic nature of hydrate nucleation, and/or results from the heterogeneity in the porosity and permeability fields of the sandy core due to heterogeneous particles. Besides, the results emphasize a clear link between the gas injection flowrate and the induction time whatever the particle size and water saturation. An increase in the gas flowrate from 29 to 78 mLn min-1 is accompanied by a decrease in the induction time up to 100 min (i.e., 77% decrease). However, such clear behaviour is less conspicuous when varying either the particle size or the water saturation. Likewise, the volume of hydrate-bound methane increases with increasing water saturation. This study showed that water is not totally converted into hydrates and most of the calculated conversion ratios are around 74-84%, with the lowest value of 49.5% conversion at 54% of water saturation and the highest values of 97.8% for the lowest water saturation (10.8%). Comparison with similar experiments in the literature is also carried out herein.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Amokrane Boufares; Elise Provost; Didier Dalmazzone; Véronique Osswald; Pascal Clain; Anthony Delahaye; Laurence Fournaison
In: Chemical Engineering Science, vol. 192, pp. 371-379, 2018.
@article{boufares_538,
title = {Kinetic study of CO2 hydrates crystallization: Characterization using FTIR/ATR spectroscopy and contribution modeling of equilibrium/non-equilibrium phase-behavior},
author = {Amokrane Boufares and Elise Provost and Didier Dalmazzone and Véronique Osswald and Pascal Clain and Anthony Delahaye and Laurence Fournaison},
url = {https://www.sciencedirect.com/science/article/pii/S0009250918305451?via%3Dihub},
year = {2018},
date = {2018-08-01},
journal = {Chemical Engineering Science},
volume = {192},
pages = {371-379},
abstract = {Gas hydrates are regarded as promising materials for various potential applications. In particular, CO2 hydrates are known for their cold storage capacities, related to their high latent heat of melting. They could be used as high efficiency Phase Change Materials in Phase Change Slurries for secondary refrigeration loops. A better understanding of the crystallization mechanism of CO2 hydrates in slurries and of the resulting formation kinetics is still needed to evaluate and improve the efficiency of hydrate-based secondary refrigeration process. For that purpose, in the present work the real-time evolution of CO2 concentration in the liquid phase was measured in situ during hydrate formation. CO2 hydrates were formed within a stirred reactor equipped with an Attenuated Total Reflection probe coupled with a Fourier Transform Infra-Red spectroscopy analyzer. By comparing the measured concentration to calculations based on the assumptions of (a) a liquidvapor equilibrium (LVE) and (b) a hydrate-liquid equilibrium (HLE), it was deduced that the crystallization kinetic is limited by CO2 transfers from the vapor phase to the liquid phase, whatever the experimental conditions tested. As soon as hydrates start forming, the CO2 concentration in the liquid phase almost instantaneously reaches the hydrate-vapor equilibrium (HVE) value at the experimental temperature, while the reactor pressure slowly decreases towards the LVE value defined by Henry's law. Different stirring speeds were experimented in order to check the effect of enhancing CO2 dissolution during hydrate formation. This resulted in faster dissolution of CO2, though still transfer-limited formation kinetics.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Yasmine Salehy; Pascal Clain; Amokrane Boufares; Véronique Osswald; Anthony Delahaye; Laurence Fournaison
Rheological study on CO2 hydrate slurries for secondary refrigeration Journal Article
In: Energetika, vol. 63, no. 3, pp. 105-112, 2017.
@article{salehy_625,
title = {Rheological study on CO2 hydrate slurries for secondary refrigeration},
author = {Yasmine Salehy and Pascal Clain and Amokrane Boufares and Véronique Osswald and Anthony Delahaye and Laurence Fournaison},
url = {https://www.lmaleidykla.lt/ojs/index.php/energetika/article/view/3561},
year = {2017},
date = {2017-11-22},
journal = {Energetika},
volume = {63},
number = {3},
pages = {105-112},
abstract = {To help the fight against climate change, the Kigali deal has planned to eliminate hydrofluorocarbon's use (HFC) in industrial systems. HFCs are powerful greenhouse gases with a high global warming potential. Moreover, HFCs are commonly used as refrigerant within secondary refrigeration processes for cold production. A solution to limit their negative environmental impact would be to reduce the amount of HFC by using a phase change slurries (PCS) in the secondary loop. A PCS is composed of solid phase change particles (solid-liquid) in a liquid transportation phase. Clathrate hydrates are crystalline particles where gas molecules are trapped in water cages. Due to their high energy densities, hydrate slurries, in particular CO2 hydrates, are relevant two-phase secondary fluids because they enhance the energy efficiency of secondary refrigeration systems. In this study, the rheological behaviour of CO2 hydrate slurries in various experimental conditions on a dynamic loop for cold distribution was investigated. An exhaustive state-of-the-art on the rheological studies of hydrate slurries in aqueous solution has pointed out that hydrate slurries are non-Newtonian fluids. However, the rheological behaviour could be different for a same kind of hydrate slurry according to the literature. Moreover, the literature review also highlighted that the most used measurement method for the apparent viscosity is the capillary viscometer. We used a semi-empirical Herschel-Bulkley's model for determining the apparent viscosity of the CO2 hydrate slurry as a function of the hydrate slurry fraction. This work is primordial for designing and sizing a new efficient refrigeration system based on this innovative material.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Thomas Dufour; Hong Minh Hoang; Jérémy Oignet; Véronique Osswald; Pascal Clain; Laurence Fournaison; Anthony Delahaye
Impact of pressure on the dynamic behavior of CO2 hydrate slurry in a stirred tank reactor applied to cold thermal energy storage Journal Article
In: Applied Energy, vol. 204, pp. 641-652, 2017.
@article{dufour_168,
title = {Impact of pressure on the dynamic behavior of CO2 hydrate slurry in a stirred tank reactor applied to cold thermal energy storage},
author = {Thomas Dufour and Hong Minh Hoang and Jérémy Oignet and Véronique Osswald and Pascal Clain and Laurence Fournaison and Anthony Delahaye},
url = {https://www.sciencedirect.com/science/article/abs/pii/S0306261917309704?via%3Dihub},
year = {2017},
date = {2017-10-01},
journal = {Applied Energy},
volume = {204},
pages = {641-652},
abstract = {Phase change material (PCM) slurries are considered as high-performance fluids for secondary refrigeration and cold thermal energy storage (CTES) systems thanks to their high energy density. Nevertheless, the efficiency of such system is limited by storage dynamic. In fact, PCM charging or discharging rate is governed by system design (storage tank, heat exchanger), heat transfer fluid temperature and flow rate (cold or hot source), and PCM temperature. However, with classical PCM (ice, paraffin...), phase change temperature depends only on material/fluid nature and composition. In the case of gas hydrates, phase change temperature is also controlled by pressure. In the current work, the influence of pressure on cold storage with gas hydrates was studied experimentally using a stirred tank reactor equipped with a cooling jacket. A tank reactor model was also developed to assess the efficiency of this storage process. The results showed that pressure can be used to adjust phase change temperature of CO2 hydrates, and consequently charging/discharging time. For the same operating conditions and during the same charging time, the amount of stored energy using CO2 hydrates can be three times higher than that using water. By increasing the initial pressure from 2.45 to 3.2 MPa (at 282.15 K), it is also possible to decrease the charging time by a factor of 3. Finally, it appears that the capacity of pressure to increase CO2-hydrate phase-change temperature can also improve system efficiency by decreasing thermal losses.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Jérémy Oignet; Anthony Delahaye; Jean-Philippe Torré; Christophe Dicharry; Hong Minh Hoang; Pascal Clain; Véronique Osswald; Ziad Youssef; Laurence Fournaison
Rheological study of CO2 hydrate slurry in the presence of Sodium Dodecyl Sulfate in a secondary refrigeration loop Journal Article
In: Chemical Engineering Science, vol. 158, pp. p294-p303, 2017.
@article{oignet_68,
title = {Rheological study of CO2 hydrate slurry in the presence of Sodium Dodecyl Sulfate in a secondary refrigeration loop},
author = {Jérémy Oignet and Anthony Delahaye and Jean-Philippe Torré and Christophe Dicharry and Hong Minh Hoang and Pascal Clain and Véronique Osswald and Ziad Youssef and Laurence Fournaison},
url = {https://www.sciencedirect.com/science/article/pii/S0009250916305486?via%3Dihub},
year = {2017},
date = {2017-03-01},
journal = {Chemical Engineering Science},
volume = {158},
pages = {p294-p303},
abstract = {Secondary refrigeration and thermal energy storage are promising solutions to enhance the performance of refrigeration systems and reduce the impact of refrigerants on the environment. To improve the energy efficiency of secondary refrigeration loops, phase change material (PCM) slurries with a high energy density, such as CO2 hydrate slurries, can be used as a secondary refrigerant. In addition, hydrate-based processes could be an innovative option to capture CO2 from flue gas. In both applications, the rheological properties of the CO2 hydrate slurry have to be controlled.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Pascal Clain; Fatou-Toutie Ndoye; Anthony Delahaye; Laurence Fournaison; Wei Lin; Didier Dalmazzone
Particle size distribution of TBPB hydrates by focused beam reflectance measurement (FBRM) for secondary refrigeration application Journal Article
In: International Journal Of Refrigeration-Revue Internationale Du Froid, vol. 50, pp. 19-31, 2015.
@article{clain_340,
title = {Particle size distribution of TBPB hydrates by focused beam reflectance measurement (FBRM) for secondary refrigeration application},
author = {Pascal Clain and Fatou-Toutie Ndoye and Anthony Delahaye and Laurence Fournaison and Wei Lin and Didier Dalmazzone},
url = {http://www.sciencedirect.com/science/article/pii/S0140700714002886},
year = {2015},
date = {2015-03-01},
journal = {International Journal Of Refrigeration-Revue Internationale Du Froid},
volume = {50},
pages = {19-31},
abstract = {Particle size distribution of TBPB hydrates by focused beam reflectance measurement (FBRM) for secondary refrigeration application?,},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Véronique Osswald; Pascal Clain; Anthony Delahaye; Laurence Fournaison
CO2 hydrates crystallization kinetic parametric study: effect of impeller type. Conference
European Conference on Gas Hydrates 2024, Trieste, Italy, 2024.
@conference{osswald_3066,
title = {CO2 hydrates crystallization kinetic parametric study: effect of impeller type.},
author = {Véronique Osswald and Pascal Clain and Anthony Delahaye and Laurence Fournaison},
year = {2024},
date = {2024-06-01},
booktitle = {European Conference on Gas Hydrates 2024},
address = {Trieste, Italy},
keywords = {},
pubstate = {accepted},
tppubtype = {conference}
}
Rihab Khirallah; Yasmine Salehy; Pascal Clain; Hong Minh Hoang; Laurence Fournaison; Anthony Delahaye
Rheological characterization of various mixtures of CO2 hydrate slurries for low temperature refrigeration applications. Conference
European Conference on Gas Hydrates 2024, Trieste, Italy, 2024.
@conference{khirallah_3067,
title = {Rheological characterization of various mixtures of CO2 hydrate slurries for low temperature refrigeration applications.},
author = {Rihab Khirallah and Yasmine Salehy and Pascal Clain and Hong Minh Hoang and Laurence Fournaison and Anthony Delahaye},
year = {2024},
date = {2024-06-01},
booktitle = {European Conference on Gas Hydrates 2024},
address = {Trieste, Italy},
keywords = {},
pubstate = {accepted},
tppubtype = {conference}
}
Houaria Boumaiza; Pascal Clain; Fatou-Toutie Ndoye; Anthony Delahaye
Phase equilibrium of CO2 and Xe hydrate crystals in presence of food products Conference
European Conference on Gas Hydrates 2024, Trieste, Italy, 2024.
@conference{boumaiza_3068,
title = {Phase equilibrium of CO2 and Xe hydrate crystals in presence of food products},
author = {Houaria Boumaiza and Pascal Clain and Fatou-Toutie Ndoye and Anthony Delahaye},
year = {2024},
date = {2024-06-01},
booktitle = {European Conference on Gas Hydrates 2024},
address = {Trieste, Italy},
keywords = {},
pubstate = {accepted},
tppubtype = {conference}
}
Nada Chami; Yasmine Salehy; Pascal Clain; Didier Dalmazzone; Anthony Delahaye; Laurence Fournaison
Thermal and energy evaluation of mixed CP+CO2 hydrate slurries Conference
5ème Journées annuelles Hydrates, Rueil-Malmaison, France, 2022.
@conference{chami_1910,
title = {Thermal and energy evaluation of mixed CP+CO2 hydrate slurries},
author = {Nada Chami and Yasmine Salehy and Pascal Clain and Didier Dalmazzone and Anthony Delahaye and Laurence Fournaison},
url = {https://hydrates.cnrs.fr/les-actions/journees-du-gdr-2022/},
year = {2022},
date = {2022-12-01},
booktitle = {5ème Journées annuelles Hydrates},
address = {Rueil-Malmaison, France},
abstract = {A thermal and energy study of mixed CP + CO2 hydrate slurries is presented to determine the hydrate fraction formed in the loop and to quantify the energy restituted by the mixed hydrate.
The work performed on mixed CP + CO2 hydrate slurries required the establishment of an experimental continuous circulation loop. A heat exchanger is connected to the loop to ensure the hydrates dissociation in order to determine the heat amount involved during the phase change. Thermal studies were also performed to determine the heat exchange coefficients.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Véronique Osswald; Pascal Clain; Didier Dalmazzone; Nada Chami; Yasmine Salehy; Anthony Delahaye; Laurence Fournaison
Kinetic study of CO2 hydrates crystallization in stirred tank reactor based on heat balance Conference
5ème Journées annuelles Hydrates, Rueil-Malmaison, France, 2022.
@conference{osswald_1911,
title = {Kinetic study of CO2 hydrates crystallization in stirred tank reactor based on heat balance},
author = {Véronique Osswald and Pascal Clain and Didier Dalmazzone and Nada Chami and Yasmine Salehy and Anthony Delahaye and Laurence Fournaison},
url = {https://hydrates.cnrs.fr/les-actions/journees-du-gdr-2022/},
year = {2022},
date = {2022-12-01},
booktitle = {5ème Journées annuelles Hydrates},
address = {Rueil-Malmaison, France},
abstract = {CO2 hydrate crystallization kinetics monitoring performs traditionally by a reactor mass balance. However, this method requires assumptions on CO2 liquid phase concentration and the number of hydration. This work presents the development of a specific method and device to determine the kinetics through direct measurement of the heat flow through the reactor shell and its evaluation compared with the mass balance method. The kinetic effect of two parameters (stirring speed, stirrer type) is outlined.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Yasmine Salehy; Pascal Clain; Nada Chami; Véronique Osswald; Anthony Delahaye; Laurence Fournaison
Rheological analysis of CO2 hydrate slurries in the presence of different additives Conference
5ème Journées annuelles Hydrates, Rueil-Malmaison, France, 2022.
@conference{salehy_1912,
title = {Rheological analysis of CO2 hydrate slurries in the presence of different additives},
author = {Yasmine Salehy and Pascal Clain and Nada Chami and Véronique Osswald and Anthony Delahaye and Laurence Fournaison},
url = {https://hydrates.cnrs.fr/les-actions/journees-du-gdr-2022/},
year = {2022},
date = {2022-12-01},
booktitle = {5ème Journées annuelles Hydrates},
address = {Rueil-Malmaison, France},
abstract = {The rheological properties of OC2 hydrate slurries in the presence of additives are analyzed. The investigations are based on the capillary viscometer method and the experimental studies are conducted in a controled dynamic flow loop allowing to measure the pressure drop and flow rate. Then, the Hershel-Buckley model is used to determine the behavioral properties of the slurries. Finally, a discussion on the assumptions and limitations of this approach is proposed.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Véronique Osswald; Pascal Clain; Amokrane Boufares; Fatima Benmesbah; Amira Zennoune; Didier Dalmazzone; Anthony Delahaye; Laurence Fournaison
17ème Congrès de la Société Française de Génie des Procédés, Nantes, France, 2019.
@conference{osswald_1021,
title = {Amélioration de l'écoulement des coulis d'hydrates de CO2 dans les circuits de réfrigération secondaire : Effets d'additif antiagglomérant sur les propriétés rhéologiques},
author = {Véronique Osswald and Pascal Clain and Amokrane Boufares and Fatima Benmesbah and Amira Zennoune and Didier Dalmazzone and Anthony Delahaye and Laurence Fournaison},
url = {http://www.sfgp2019-nantes.fr/},
year = {2019},
date = {2019-10-01},
booktitle = {17ème Congrès de la Société Française de Génie des Procédés},
address = {Nantes, France},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Fatima Benmesbah; Livio Ruffine; Pascal Clain; Véronique Osswald; Laurence Fournaison; Anthony Delahaye
AGU Fall meeting 2018, Washington DC, USA, 2018.
@conference{benmesbah_634,
title = {Experimental study of methane-hydrate formation and dissociation in sand: kinetics and gas storage capacity},
author = {Fatima Benmesbah and Livio Ruffine and Pascal Clain and Véronique Osswald and Laurence Fournaison and Anthony Delahaye},
url = {https://agu.confex.com/agu/fm18/meetingapp.cgi/Paper/391035},
year = {2018},
date = {2018-12-01},
booktitle = {AGU Fall meeting 2018},
address = {Washington DC, USA},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Amokrane Boufares; Elise Provost; Véronique Osswald; Pascal Clain; Anthony Delahaye; Laurence Fournaison; Didier Dalmazzone
16ème Congrès de la Société Française de Génie des Procédés, Nancy, France, 2017.
@conference{boufares_269,
title = {Détermination de la concentration du CO2 moléculaire en phase aqueuse par spectroscopie infrarouge : application à la cristallisation des hydrates de CO2},
author = {Amokrane Boufares and Elise Provost and Véronique Osswald and Pascal Clain and Anthony Delahaye and Laurence Fournaison and Didier Dalmazzone},
url = {https://sfgp2017.sciencesconf.org/},
year = {2017},
date = {2017-07-01},
booktitle = {16ème Congrès de la Société Française de Génie des Procédés},
address = {Nancy, France},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Véronique Osswald; Amokrane Boufares; Pascal Clain; Elise Provost; Didier Dalmazzone; Anthony Delahaye; Laurence Fournaison
16th Congrès de la Société Française de Génie des Procédés, Nancy, France, 2017.
@conference{osswald_278,
title = {Etude expérimentale de la cinétique de cristallisation des hydrates deCO2 en présence ou non d'additif chimique},
author = {Véronique Osswald and Amokrane Boufares and Pascal Clain and Elise Provost and Didier Dalmazzone and Anthony Delahaye and Laurence Fournaison},
url = {https://sfgp2017.sciencesconf.org/},
year = {2017},
date = {2017-06-01},
booktitle = {16th Congrès de la Société Française de Génie des Procédés},
address = {Nancy, France},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Pascal Clain; Insaf Khelladi; Christophe Rodrigues; Alessandro Biancalani; Guillaume Guérard; Saeedeh Rezaee Vessal
Increase Social Acceptability of Nuclear Fusion, Agrivoltaics, and Offshore Wind Through National Support Programmes Book Section
In: A. Crowther, Foulds (Ed.): Strengthening European Energy Policy: Governance Recommendations From Innovative Interdisciplinary Collaborations, pp. pp. 101-113, Palgrave Macmillan, 2024, ISBN: 978-3-031-66481-6.
@incollection{clain_3168,
title = {Increase Social Acceptability of Nuclear Fusion, Agrivoltaics, and Offshore Wind Through National Support Programmes},
author = {Pascal Clain and Insaf Khelladi and Christophe Rodrigues and Alessandro Biancalani and Guillaume Guérard and Saeedeh Rezaee Vessal},
editor = {Crowther, A., Foulds, C., Robison, R., Gladkykh, G. (eds)},
url = {https://link.springer.com/chapter/10.1007/978-3-031-66481-6_8},
issn = {978-3-031-66481-6},
year = {2024},
date = {2024-09-01},
booktitle = {Strengthening European Energy Policy: Governance Recommendations From Innovative Interdisciplinary Collaborations},
pages = {pp. 101-113},
publisher = {Palgrave Macmillan},
abstract = {Policy Highlights - To achieve the recommendation stated in the chapter title, we propose the following:
- Facilitate the establishment of observatories to monitor social acceptability of low-carbon energy technologies at the EU and national levels.
- Offer technical assistance to help Member States incorporate social acceptability factors into their energy transition strategies.
- Develop training programmes to integrate social acceptability factors into the design of low-carbon energy projects from the start.
- Assist countries in managing and resolving disputes and interactions regarding different low-carbon energy technologies.
- Social Sciences and Humanities (SSH) Science, Technology, Engineering and Mathematics (STEM) collaborative recommendations can ensure policies are informed by a nuanced understanding of technical and social structures, making them more practical and widely accepted.},
keywords = {},
pubstate = {published},
tppubtype = {incollection}
}
Véronique Osswald; Pascal Clain; Anthony Delahaye; Laurence Fournaison
CO2 HYDRATES CRYSTALLIZATION KINETIC PARAMETRIC STUDY: EFFECT OF STIRRING RATE AND IMPELLER TYPE Proceedings Article
In: IIR, (Ed.): 14th IIR-IIF PCM&Slurries 2024, Paris, France, 2024.
@inproceedings{osswald_3064,
title = {CO2 HYDRATES CRYSTALLIZATION KINETIC PARAMETRIC STUDY: EFFECT OF STIRRING RATE AND IMPELLER TYPE},
author = {Véronique Osswald and Pascal Clain and Anthony Delahaye and Laurence Fournaison},
editor = {IIR},
url = {x},
year = {2024},
date = {2024-05-01},
booktitle = {14th IIR-IIF PCM&Slurries 2024},
address = {Paris, France},
abstract = {Carbon dioxyde hydrates are ice-like crystalline solids composed of CO2 molecules trapped inside cages of hydrogen-bonded water molecules. CO2 hydrates slurries can be used as phase change material for industrial issues of cold distribution due to the high dissociation enthalpy of CO2 hydrate (around 374 kJ kg-1, higher than that of ice - 333 kJ kg-1). However, formation rate of CO2 hydrate is a real limitation, and the way to control and promote it is a key parameter.
The present work investigates the kinetics of CO2 hydrate crystallization for two different types of stirrers on the one hand a three-pitched blade stirrer and, on the other hand, a hollow shaft eight-blade Rushton turbine. A jacketed stirred batch reactor, with a specially developed sensor (a thermopile), is used to determine experimental heat balance on the cooling jacket. The mass fraction of crystallized hydrate during the time is determined directly from this heat balance. We conclude with the global performance of both heat and mass transfers of the stirrer and give general recommendations for the choice of stirrer type and scale-up process.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Yasmine Salehy; Nada Chami; Pascal Clain; Hong Minh Hoang; Didier Dalmazzone; Laurence Fournaison; Anthony Delahaye
MULTI-PERFORMANCE ASSESSMENT OF HYDRATE SLURRIES FOR SECONDARY REFRIGERATION IN A MODELLED INDUSTRIAL CASE STUDY Proceedings Article
In: IIR, (Ed.): 14th IIR-IIF PCM&Slurries 2024, Paris, France, 2024.
@inproceedings{salehy_3065,
title = {MULTI-PERFORMANCE ASSESSMENT OF HYDRATE SLURRIES FOR SECONDARY REFRIGERATION IN A MODELLED INDUSTRIAL CASE STUDY},
author = {Yasmine Salehy and Nada Chami and Pascal Clain and Hong Minh Hoang and Didier Dalmazzone and Laurence Fournaison and Anthony Delahaye},
editor = {IIR},
year = {2024},
date = {2024-05-01},
booktitle = {14th IIR-IIF PCM&Slurries 2024},
address = {Paris, France},
abstract = {Studies have shown that the use of Phase Change Materials (PCMs) in secondary refrigeration could improve the efficiency of refrigeration systems. In this study, the focus is made on CO2 hydrate slurry. Despite the demonstration of the interest of such a system, there is a barrier to their industrial development. The work presented in this paper analyses the behaviour of hydrate slurries in an industrial context, here the air conditioning of supermarket, and proposes a multi-performance evaluation of hydrate slurry systems. Starting from the modelling of the rheological and thermal properties of the slurries established by experimental studies in the laboratory, their theoretical energy behaviour in an industrial case can be analysed. In addition, the environmental, economic and operational performance of the refrigeration system are simulated. This innovative architecture using hydrate slurries is compared to systems already implemented in industry such as centralised direct expansion systems.},
keywords = {},
pubstate = {accepted},
tppubtype = {inproceedings}
}
Pascal Clain; Fatima Benmesbah; Anthony Delahaye; Laurence Fournaison; Olivia Fandino; Livio Ruffine; Véronique Osswald; Christophe Dicharry
Influence of porous media on carbon dioxide hydrate formation and dissociation processes by calorimetry for secondary refrigeration applications Proceedings Article
In: 26th International Congress of Refrigeration, Paris, France, 2023.
@inproceedings{clain_2403,
title = {Influence of porous media on carbon dioxide hydrate formation and dissociation processes by calorimetry for secondary refrigeration applications},
author = {Pascal Clain and Fatima Benmesbah and Anthony Delahaye and Laurence Fournaison and Olivia Fandino and Livio Ruffine and Véronique Osswald and Christophe Dicharry},
url = {https://iifiir.org/en/events/26th-iir-international-congress-of-refrigeration},
year = {2023},
date = {2023-08-01},
booktitle = {26th International Congress of Refrigeration},
address = {Paris, France},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Véronique Osswald; Pascal Clain; Seydina Ndoye; Hong Minh Hoang; Didier Dalmazzone; Anthony Delahaye; Laurence Fournaison
Heat transfer measurement and modeling in a jacketed batch stirred reactor applied to CO2 hydrate formation kinetic study Proceedings Article
In: 26th International Congress of Refrigeration, Paris, France, 2023.
@inproceedings{osswald_2404,
title = {Heat transfer measurement and modeling in a jacketed batch stirred reactor applied to CO2 hydrate formation kinetic study},
author = {Véronique Osswald and Pascal Clain and Seydina Ndoye and Hong Minh Hoang and Didier Dalmazzone and Anthony Delahaye and Laurence Fournaison},
url = {https://iifiir.org/en/fridoc/heat-transfer-measurement-and-modelling-in-a-jacketed-batch-stirred-147672},
year = {2023},
date = {2023-08-01},
booktitle = {26th International Congress of Refrigeration},
address = {Paris, France},
keywords = {},
pubstate = {online},
tppubtype = {inproceedings}
}
Yasmine Salehy; Nada Chami; Pascal Clain; Hong Minh Hoang; Didier Dalmazzone; Laurence Fournaison; Anthony Delahaye
Multi-performance assessment of hydrate slurries for secondary refrigeration in a modelled industrial case study Proceedings Article
In: 26th International Congress of Refrigeration, Paris, France, 2023.
@inproceedings{salehy_2405,
title = {Multi-performance assessment of hydrate slurries for secondary refrigeration in a modelled industrial case study},
author = {Yasmine Salehy and Nada Chami and Pascal Clain and Hong Minh Hoang and Didier Dalmazzone and Laurence Fournaison and Anthony Delahaye},
url = {https://iifiir.org/en/fridoc/multi-performance-assessment-of-hydrate-slurries-for-secondary-147694},
year = {2023},
date = {2023-08-01},
booktitle = {26th International Congress of Refrigeration},
address = {Paris, France},
keywords = {},
pubstate = {online},
tppubtype = {inproceedings}
}
Walid Samah; Pascal Clain; François Rioual; Laurence Fournaison; Anthony Delahaye
Experimental characterization of surface properties for ice slurry production optimization Proceedings Article
In: 26th International Congress of Refrigeration, Paris, France, 2023.
@inproceedings{samah_2406,
title = {Experimental characterization of surface properties for ice slurry production optimization},
author = {Walid Samah and Pascal Clain and François Rioual and Laurence Fournaison and Anthony Delahaye},
url = {https://iifiir.org/fr/fridoc/caracterisation-experimentale-des-proprietes-des-surfaces-glaciophobes-147786},
year = {2023},
date = {2023-08-01},
booktitle = {26th International Congress of Refrigeration},
address = {Paris, France},
keywords = {},
pubstate = {online},
tppubtype = {inproceedings}
}
Nada Chami; Yasmine Salehy; Pascal Clain; Didier Dalmazzone; Anthony Delahaye; Laurence Fournaison
Rheological and thermal study of mixed cyclopentane + CO2 Hydrate slurries for refrigeration applications Proceedings Article
In: 26th International Congress of Refrigeration, Paris, France, 2023.
@inproceedings{chami_2407,
title = {Rheological and thermal study of mixed cyclopentane + CO2 Hydrate slurries for refrigeration applications},
author = {Nada Chami and Yasmine Salehy and Pascal Clain and Didier Dalmazzone and Anthony Delahaye and Laurence Fournaison},
url = {https://iifiir.org/fr/fridoc/etude-rheologique-et-thermique-des-coulis-mixtes-cyclopentane-147684},
year = {2023},
date = {2023-08-01},
booktitle = {26th International Congress of Refrigeration},
address = {Paris, France},
keywords = {},
pubstate = {online},
tppubtype = {inproceedings}
}
Fernanda Arreola; Pascal Clain
Quantum startup: using an analogy for theory development in the study of breakthrough innovation. Proceedings Article
In: OMT - IAE Business School PDW, Organization & Management Theory Academy of Management, Derqui, Argentina, 2022.
@inproceedings{arreola_1913,
title = {Quantum startup: using an analogy for theory development in the study of breakthrough innovation.},
author = {Fernanda Arreola and Pascal Clain},
url = {x},
year = {2022},
date = {2022-12-01},
booktitle = {OMT - IAE Business School PDW},
publisher = {Academy of Management},
address = {Derqui, Argentina},
organization = {Organization & Management Theory},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Nada Chami; Pascal Clain; Véronique Osswald; Anthony Delahaye; Laurence Fournaison; Didier Dalmazzone; Yasmine Salehy
Rheological and thermal study of mixed CP + CO2 hydrates for refrigeration applications Proceedings Article
In: 1th European Conference on Gas Hydrates, Lyon, France, 2022.
@inproceedings{chami_1849,
title = {Rheological and thermal study of mixed CP + CO2 hydrates for refrigeration applications},
author = {Nada Chami and Pascal Clain and Véronique Osswald and Anthony Delahaye and Laurence Fournaison and Didier Dalmazzone and Yasmine Salehy},
url = {https://ecgh2022.sciencesconf.org/},
year = {2022},
date = {2022-06-01},
booktitle = {1th European Conference on Gas Hydrates},
address = {Lyon, France},
abstract = {The use of gas hydrates in secondary refrigeration can reduce cooling environmental impact by greenhouse gas reduction because of there high energy density. CO2 hydrates was selected at previous work as a candidate material for secondary refrigeration. In this study, cyclopentane, a thermodynamic promoter that has been identified for its promotive qualities to lower the formation pressure of CO2 hydrates was used to form mixed CP + CO2 hydrate slurries. This work deploys a temperature-controlled flowloop to characterize the rheological properties of hydrate slurries generated in situ from oil-in-water emulsions. Systems of 3 - 15wt% cyclopentane fraction to form pure CP hydrate and mixed CP + CO2 hydrate slurries were tested. The results showed that the viscosity of CP and mixed CP + CO2 hydrate slurries increase with the decrease of the shear rate, exhibiting a shear-thinning behavior. With a similar protocol, a rheological characterization involving a long period of hydrate slurries circulation was conducted. The results illustrated that the hydrate slurries behavior change with time. A thermal study was performed using heating tube method applied and heat transfer coefficients were determined for different cyclopentane fraction.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Véronique Osswald; Pascal Clain; Didier Dalmazzone; Anthony Delahaye; Laurence Fournaison
Experimental heat transfer measurement applied to CO2 hydrate formation kinetic study Proceedings Article
In: 1th European Conference on Gas Hydrates, Lyon, France, 2022.
@inproceedings{osswald_1850,
title = {Experimental heat transfer measurement applied to CO2 hydrate formation kinetic study},
author = {Véronique Osswald and Pascal Clain and Didier Dalmazzone and Anthony Delahaye and Laurence Fournaison},
url = {https://ecgh2022.sciencesconf.org/},
year = {2022},
date = {2022-06-01},
booktitle = {1th European Conference on Gas Hydrates},
address = {Lyon, France},
abstract = {CO
2 hydrate slurry is a promising phase change material for secondary refrigeration cold distribution
issues, due to its high latent heat (about 500 kJ.kg 1 of water, higher than that of ice 333 kJ.kg 1) and
wide melting temperature range suitable for air c onditioning application. While the thermodynamic
properties of CO 2 hydrates are now well established, knowledge of crystallization kinetics phenomena
is still a challenge. Trying to understand and control the formation of gas hydrates is a key factor since
their discovery in pipeline plugs by Hammerschmidt, but unlike that case, the goal here is to promote
the rate of CO 2 hydrate formation. Most laboratory scale hydrate reactors are equipped with pressure
and temperature loggers, and mass balance on CO 2 all ows formation kinetic studies, but with
assumptions on CO 2 concentration in liquid phase in the liquid phase and the hydration number.
The
present work investigates the kinetics of CO 2 hydrate crystallization for different types of stirrers
and stirring sp eed conditions in a jacketed stirred batch reactor. Heat balance obtain experimentally
using a specially developed sensor installed on the cooling jacket. The mass fraction of crystallized
hydrate determine directly from the heat balance on the cooling jac ket. First, tests on water heating and
cooling steps and ice crystallization allowed the method validation before to apply it to CO 2 hydrate
crystallization. Experimental results described with an empirical model and compared to other mass
balance based ki netic determinations. Finally, the development of a simplified thermal model improved
this kinetic determination by estimating heat fl ows inside the reactor and with the environment.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Véronique Osswald; Pascal Clain; Didier Dalmazzone; Laurence Fournaison; Anthony Delahaye
Suivi cinétique de la cristallisation des hydrates de CO2 par mesure thermique - Effet de l'agitation Proceedings Article
In: CRISTAL 10, Lyon, France, 2022.
@inproceedings{osswald_1851,
title = {Suivi cinétique de la cristallisation des hydrates de CO2 par mesure thermique - Effet de l'agitation},
author = {Véronique Osswald and Pascal Clain and Didier Dalmazzone and Laurence Fournaison and Anthony Delahaye},
url = {http://cristal10.univ-lyon1.fr/fr},
year = {2022},
date = {2022-06-01},
booktitle = {CRISTAL 10},
address = {Lyon, France},
abstract = {Les coulis d'hydrates de CO2 constituent un matériau à changement de phase prometteur pour la distribution du froid en réfrigération secondaire [1], en raison de leur chaleur latente élevée (environ 500 kJ.kg-1 d'eau, supérieure à celle de la glace: 333 kJ.kg-1) et de leur large plage de température de fusion adaptée aux applications de climatisation. Ce sont des structures cristallines proche de la glace, au sein desquelles sont enclathrées des molécules de dioxyde de carbone. Si les propriétés thermodynamiques des hydrates de CO2 sont désormais bien établies, la connaissance des phénomènes cinétiques de cristallisation reste parcellaire [2]. Comprendre et contrôler la formation des hydrates de gaz est un défi depuis leur découverte dans les bouchons de pipeline par Hammerschmidt [3]. Mais contrairement à ce cas, où l'on cherche à retarder l'apparition des hydrates, l'objectif ici est de favoriser leur cristallisation. La plupart des réacteurs dans lesquels est étudiée la cristallisation des hydrates à l'échelle du laboratoire sont équipés d'enregistreurs de pression et de température, et c'est à partir d'un bilan matière sur le CO2, en faisant des hypothèses sur la concentration de CO2 en phase liquide et le nombre d'hydratation, que le suivi de la cinétique est réalisé [4].
L'objet des travaux présentés ici est l'étude de la cinétique de cristallisation des hydrates de CO2 pour différents types d'agitateurs et différentes conditions de vitesse d'agitation dans un réacteur batch agité à double enveloppe. Le bilan thermique est obtenu expérimentalement en utilisant un capteur spécialement développé et installé sur la double enveloppe du réacteur. La fraction massique cristallisée est déterminée directement à partir du bilan thermique sur la double-enveloppe. Des essais sur les étapes de chauffage et de refroidissement de l'eau et la cristallisation de la glace ont permis de valider la méthode avant de l'appliquer à la cristallisation des hydrates de CO2. Les résultats expérimentaux sont décrits à partir d'un modèle empirique et comparés à d'autres déterminations cinétiques basées sur le bilan de matière. Enfin, le développement d'un modèle thermique simplifié du réacteur a permis d'améliorer cette détermination cinétique en estimant les flux de chaleur au sein du réacteur et avec l'environnement.},
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pubstate = {published},
tppubtype = {inproceedings}
}
Walid Samah; Pascal Clain; Laurence Fournaison; François Rioual; Anthony Delahaye
Étude du comportement de mouillage d'une goutte d'eau sur une surface superhydrophobe en fonction de la température et de l'humidité Proceedings Article
In: 30ème congrès annuel de la Société Française de Thermique, Valenciennes, France, 2022.
@inproceedings{samah_1852,
title = {Étude du comportement de mouillage d'une goutte d'eau sur une surface superhydrophobe en fonction de la température et de l'humidité},
author = {Walid Samah and Pascal Clain and Laurence Fournaison and François Rioual and Anthony Delahaye},
url = {http://www.congres-sft.fr/2022/},
year = {2022},
date = {2022-05-01},
booktitle = {30ème congrès annuel de la Société Française de Thermique},
address = {Valenciennes, France},
abstract = {Cet article présente une étude sur le comportement de mouillage d'une gouttes sur une
surface recouverte d'un revêtement superhydrophobe à différentes températures de surface et humidités
relatives. Les résultats montrent que l'évolution des angles de contact pendant le refroidissement des
surfaces est influencée par deux phénomènes : le premier est l'évaporation des gouttes et le second est
la condensation de la vapeur d'eau sur ces surfaces à basse température. Un modèle semi-empirique
de l'évaporation d'une goutte sur une surface superhydrophobe est présenté et comparé aux résultats
expérimentaux.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Nada Chami; Pascal Clain; Véronique Osswald; Anthony Delahaye; Laurence Fournaison; Didier Dalmazzone
Characterization of mixed CP + CO2 hydrates for refrigeration applications Proceedings Article
In: 13th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning, Vicenza, Italy, 2021.
@inproceedings{chami_1565,
title = {Characterization of mixed CP + CO2 hydrates for refrigeration applications},
author = {Nada Chami and Pascal Clain and Véronique Osswald and Anthony Delahaye and Laurence Fournaison and Didier Dalmazzone},
url = {http://static.gest.unipd.it/PCM2021/},
year = {2021},
date = {2021-09-01},
booktitle = {13th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning},
address = {Vicenza, Italy},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Somia Haouache; Pascal Clain; Isabelle Capron; Laurence Fournaison
The influence of droplet size and hexadecane volume fraction on the rheological behavior of hexadecane-in-water emulsion stabilized by cellulose nanocrystals Proceedings Article
In: 13th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning, Vicenza, Italy, 2021.
@inproceedings{haouache_1566,
title = {The influence of droplet size and hexadecane volume fraction on the rheological behavior of hexadecane-in-water emulsion stabilized by cellulose nanocrystals},
author = {Somia Haouache and Pascal Clain and Isabelle Capron and Laurence Fournaison},
url = {http://static.gest.unipd.it/PCM2021/},
year = {2021},
date = {2021-09-01},
booktitle = {13th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning},
address = {Vicenza, Italy},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Véronique Osswald; Pascal Clain; Didier Dalmazzone; Anthony Delahaye; Laurence Fournaison
Kinetic study ofCO2 hydrate formation based on heat transfer measurement Proceedings Article
In: 13th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning, Vicenza, Italy, 2021.
@inproceedings{osswald_1567,
title = {Kinetic study ofCO2 hydrate formation based on heat transfer measurement},
author = {Véronique Osswald and Pascal Clain and Didier Dalmazzone and Anthony Delahaye and Laurence Fournaison},
url = {http://static.gest.unipd.it/PCM2021/},
year = {2021},
date = {2021-09-01},
booktitle = {13th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning},
address = {Vicenza, Italy},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Véronique Osswald; Amokrane Boufares; Pascal Clain; Elise Provost; Didier Dalmazzone; Anthony Delahaye; Laurence Fournaison
FTIR kinetic study of CO2 hydrates formation in a tank reactor: Influence of stirring rate and impeller type Proceedings Article
In: 10th International Conference on Gas Hydrates, Singapore, Singapore, 2020.
@inproceedings{osswald_1229,
title = {FTIR kinetic study of CO2 hydrates formation in a tank reactor: Influence of stirring rate and impeller type},
author = {Véronique Osswald and Amokrane Boufares and Pascal Clain and Elise Provost and Didier Dalmazzone and Anthony Delahaye and Laurence Fournaison},
url = {https://www.icgh10.com/},
year = {2020},
date = {2020-12-01},
booktitle = {10th International Conference on Gas Hydrates},
address = {Singapore, Singapore},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Fatima Benmesbah; Pascal Clain; Livio Ruffine; Véronique Osswald; Laurence Fournaison; Olivia Fandino; Anthony Delahaye
Kinetic and thermodynamic study of gas hydrates in porous media: application to gas hydrate-bearing sediments and cold production and storage Proceedings Article
In: 10th International Conference on Gas Hydrates, Singapore, Singapore, 2020.
@inproceedings{benmesbah_1230,
title = {Kinetic and thermodynamic study of gas hydrates in porous media: application to gas hydrate-bearing sediments and cold production and storage},
author = {Fatima Benmesbah and Pascal Clain and Livio Ruffine and Véronique Osswald and Laurence Fournaison and Olivia Fandino and Anthony Delahaye},
url = {https://www.icgh10.com/},
year = {2020},
date = {2020-12-01},
booktitle = {10th International Conference on Gas Hydrates},
address = {Singapore, Singapore},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Pascal Clain; Amokrane Boufares; Fatima Benmesbah; Véronique Osswald; Anthony Delahaye; Laurence Fournaison; Elise Provost; Didier Dalmazzone
Characterization of additive impact on CO2 hydrate slurry: granulometry and rheology measurements Proceedings Article
In: 10th International Conference on Gas Hydrates, Singapore, Singapore, 2020.
@inproceedings{clain_1231,
title = {Characterization of additive impact on CO2 hydrate slurry: granulometry and rheology measurements},
author = {Pascal Clain and Amokrane Boufares and Fatima Benmesbah and Véronique Osswald and Anthony Delahaye and Laurence Fournaison and Elise Provost and Didier Dalmazzone},
url = {https://www.icgh10.com/},
year = {2020},
date = {2020-12-01},
booktitle = {10th International Conference on Gas Hydrates},
address = {Singapore, Singapore},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Pascal Clain; Amokrane Boufares; Fatima Benmesbah; Amira Zennoune; Véronique Osswald; Hong Minh Hoang; Didier Dalmazzone; Anthony Delahaye; Laurence Fournaison
Improvement of CO2 hydrate slurry transportation in flow loop: Effect of anti-agglomerant additive on rheological properties Proceedings Article
In: Proceedings of the 25th IIR International Congress of Refrigeration, Montréal, Canada, 2019, ISBN: ISBN : 978-2-362-15035-7.
@inproceedings{clain_897,
title = {Improvement of CO2 hydrate slurry transportation in flow loop: Effect of anti-agglomerant additive on rheological properties},
author = {Pascal Clain and Amokrane Boufares and Fatima Benmesbah and Amira Zennoune and Véronique Osswald and Hong Minh Hoang and Didier Dalmazzone and Anthony Delahaye and Laurence Fournaison},
url = {http://www.iifiir.org/ClientBookLine/recherche/NoticesDetaillees.asp?INSTANCE=exploitation&iNotice=1&ldebut=},
issn = {ISBN : 978-2-362-15035-7},
year = {2019},
date = {2019-08-01},
booktitle = {Proceedings of the 25th IIR International Congress of Refrigeration},
address = {Montréal, Canada},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Hong Minh Hoang; Thomas Dufour; Jérémy Oignet; Véronique Osswald; Pascal Clain; Laurence Fournaison; Anthony Delahaye
Energy and economic approach for the use of thermal energy storage on district cooling/impact of scenario and materials Proceedings Article
In: Proceedings of the 25th IIR International Congress of Refrigeration, Montréal, Canada, 2019, ISBN: ISBN : 978-2-362-15035-7.
@inproceedings{hoang_898,
title = {Energy and economic approach for the use of thermal energy storage on district cooling/impact of scenario and materials},
author = {Hong Minh Hoang and Thomas Dufour and Jérémy Oignet and Véronique Osswald and Pascal Clain and Laurence Fournaison and Anthony Delahaye},
url = {https://cm.icr2019.org/webapp/lecture/800},
issn = {ISBN : 978-2-362-15035-7},
year = {2019},
date = {2019-08-01},
booktitle = {Proceedings of the 25th IIR International Congress of Refrigeration},
address = {Montréal, Canada},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Véronique Osswald; Amokrane Boufares; Pascal Clain; Elise Provost; Didier Dalmazzone; Hong Minh Hoang; Laurence Fournaison; Anthony Delahaye
Gas to liquid transfer enhancement during hydrate crystallization: Case study of CO2 hydrate for cold storage and transport Proceedings Article
In: Proceedings of the 25th IIR International Congress of Refrigeration, Montréal, Canada, 2019, ISBN: ISBN : 978-2-362-15035-7.
@inproceedings{osswald_899,
title = {Gas to liquid transfer enhancement during hydrate crystallization: Case study of CO2 hydrate for cold storage and transport},
author = {Véronique Osswald and Amokrane Boufares and Pascal Clain and Elise Provost and Didier Dalmazzone and Hong Minh Hoang and Laurence Fournaison and Anthony Delahaye},
url = {https://cm.icr2019.org/webapp/lecture/1188},
issn = {ISBN : 978-2-362-15035-7},
year = {2019},
date = {2019-08-01},
booktitle = {Proceedings of the 25th IIR International Congress of Refrigeration},
address = {Montréal, Canada},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Mahdjouba Akerma; Hong Minh Hoang; Denis Leducq; Clément Flinois; Pascal Clain; Anthony Delahaye
Demand response in refrigerated warehouse Proceedings Article
In: 2018 IEEE International Smart Cities Conference (ISC2), Kansas City, USA, 2018, ISBN: ISBN: 978-1-5386-5960-1.
@inproceedings{akerma_632,
title = {Demand response in refrigerated warehouse},
author = {Mahdjouba Akerma and Hong Minh Hoang and Denis Leducq and Clément Flinois and Pascal Clain and Anthony Delahaye},
url = {https://ieeexplore.ieee.org/document/8656808},
issn = {ISBN: 978-1-5386-5960-1},
year = {2018},
date = {2018-09-01},
booktitle = {2018 IEEE International Smart Cities Conference (ISC2)},
address = {Kansas City, USA},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Amokrane Boufares; Elise Provost; Véronique Osswald; Pascal Clain; Anthony Delahaye; Laurence Fournaison
Experimental Quantification and Modeling of Dissolved Gas during Hydrate Crystallization: CO2 Hydrate Case Proceedings Article
In: 20th International Conference on Petroleum and Natural Gas Engineering, London, United Kingdom, 2018.
@inproceedings{boufares_638,
title = {Experimental Quantification and Modeling of Dissolved Gas during Hydrate Crystallization: CO2 Hydrate Case},
author = {Amokrane Boufares and Elise Provost and Véronique Osswald and Pascal Clain and Anthony Delahaye and Laurence Fournaison},
url = {http://www.worldoils.com/showoiltrainings.php?id=4730&event_name=ICPNGE%202018%20:%2020th%20International%20Conference%20on%20Petroleum%20and%20Natural%20Gas%20Engineering},
year = {2018},
date = {2018-06-01},
booktitle = {20th International Conference on Petroleum and Natural Gas Engineering},
address = {London, United Kingdom},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Thomas Dufour; Hong Minh Hoang; Véronique Osswald; Pascal Clain; Laurence Fournaison
Impact of thermal energy storage on the sizing and energy consumption of a district cooling system Proceedings Article
In: 12th IIR Conference on Phase Change Materials and Slurries for Refrigeration and Air Conditioning (PCM 2018), pp. 407, Orford, Canada, 2018, ISBN: ISBN : 9781510868359.
@inproceedings{dufour_639,
title = {Impact of thermal energy storage on the sizing and energy consumption of a district cooling system},
author = {Thomas Dufour and Hong Minh Hoang and Véronique Osswald and Pascal Clain and Laurence Fournaison},
url = {http://www.proceedings.com/40628.html},
issn = {ISBN : 9781510868359},
year = {2018},
date = {2018-05-01},
booktitle = {12th IIR Conference on Phase Change Materials and Slurries for Refrigeration and Air Conditioning (PCM 2018)},
pages = {407},
address = {Orford, Canada},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
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