Two-phase secondary refrigerants

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Laboratory of Thermal Engineering, Energy and Processes (LATEP)
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Two-phase secondary refrigerants

Phase change is also used to transport energy. Two-phase secondary refrigerants are used in indirect cooling systems. Studies were conducted on the aspects of generation, storage and transport using slurry ice made up of a mixture of ice crystals in an aqueous solution. These secondary refrigerants offer interesting advantages for energy transportation and for improving transfers in heat exchangers, in particular owing to the enthalpy of fusion of the ice. The objective of our studies was to develop an industrial process for transporting cold based on the use of slurry ice (liquid-solid two-phase refrigerant), which has a high energy storage density, instead of the current single-phase refrigerants. This project included the following aspects: slurry ice production, cold storage, cold transportation and use of cold.