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Heat transfer measurement and modelling in a jacketed batch stirred reactor applied to CO2 hydrate formation kinetic study.
Number: 0278
Author(s) : OSSWALD V., CLAIN P., NDOYE S., DELAHAYE A., FOURNAISON L.
Summary
CO2 hydrate slurry is a promising fluid containing 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 having a wide melting temperature range suitable for air conditioning application. The thermodynamic properties of CO2 hydrates are now well established. Nevertheless, knowledge of crystallization kinetics phenomena is still a challenge. The goal here is to promote the rate of CO2 hydrate formation to increase the energy density of the CO2-hydrate-based system.
The present work investigates the kinetics of CO2 hydrate crystallization for different types of stirrers in a jacketed stirred batch reactor by heat transfer measurement. The mass fraction of crystallized hydrate was determined directly from the heat balance on the cooling jacket, with a specific differential thermal direct measurement. This heat balance's kinetic approach is compared with a classical mass balance approach based on pressure and temperature measurements and suitable CO2 concentration and hydrate composition assumptions.
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Details
- Original title: Heat transfer measurement and modelling in a jacketed batch stirred reactor applied to CO2 hydrate formation kinetic study.
- Record ID : 30031596
- Languages: English
- Subject: Technology
- Source: Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
- Publication date: 2023/08/21
- DOI: http://dx.doi.org/10.18462/iir.icr.2023.0278
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