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Published in:
2014 | OriginalPaper | Chapter
60. Match Properties of Heat and Mass Transfer Processes in the Internally-Cooled Liquid Desiccant System
Authors : Jingjing Jiang, Xiaohua Liu, Yi Jiang
Published in: Proceedings of the 8th International Symposium on Heating, Ventilation and Air Conditioning
Publisher: Springer Berlin Heidelberg
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Abstract
Liquid desiccant system is more and more popular in the air-conditioning system. This paper focuses on the match property analyses of the internally-cooled liquid desiccant system. The unmatched coefficients both of the sensible heat transfer process between the desiccant and the cooling medium and the coupled heat and mass transfer process between the desiccant and the air were defined for the internally-cooled device. Numerical model of the dehumidifier was established for calculating the unmatched coefficients. Match properties of different kinds of liquid desiccant systems under various boundary conditions were then compared. The results show that the internally-cooled device has much smaller unmatched coefficients compared to the two-flow devices (adiabatic dehumidifier and sensible heat exchanger). The unmatched coefficients are good indicators for system improvement with identical heat and mass transfer area.