Experimental study on mass transfer comparison of two liquid desiccants aqueous solutions

Experimental study on mass transfer comparison of two liquid desiccants aqueous solutions

This paper experimentally studies the mass transfer during the dehumidification/regeneration operation using the hygroscopic material calcium chloride and calcium chloride dehydrate as desiccant. These desiccants are compared on the basis of the same operation conditions. According to the analysis o...

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Veröffentlicht in:RE&PQJ 2024-01, Vol.12 (5)
Hauptverfasser: S. Bouzenada, T. Salmon, L. Fraikin, A. Kaabi, A. Léonard
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T. Salmon
L. Fraikin
A. Kaabi
A. Léonard
description This paper experimentally studies the mass transfer during the dehumidification/regeneration operation using the hygroscopic material calcium chloride and calcium chloride dehydrate as desiccant. These desiccants are compared on the basis of the same operation conditions. According to the analysis of heat and mass transfer processes, the key influencing factors are relative humidity and regeneration temperature. It can be observed that the CaCl2.2H2O is more rapidly diluted than the CaCl2 at the same time during dehumidification, while the CaCl2 solution can be more dried than CaCl2.2H2O solution during regeneration. Then the CaCl2 is able to absorb more moisture in the cycle of LDCS system. Also, the obtained experimental results can help to select liquid desiccant.
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