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INTERNATIONAL JOURNAL OF THERMOPHYSICS · 2019 ·Vol. 40 ·期 11 ·1-11 · IF 0.853

A New Empirical Equation for the Specific Thermal Capacity of Aqueous LiCl Solutions in a Wide Range of Conditions

He Yijian,Cao Chao,Xu Jiachen,Sun Yue,Chen Zepeng,Chen Guangming

Aqueous LiCl solutions are typical desiccants. Specific thermal capacity data, covering the temperatures range from 233.15 K to 343.15 K and salt mass fractions ranging from 0.15 to 0.45, have been obtained experimentally. The correlating equation proposed reproduces these experimental data with an average absolute deviation of 0.35 %, and a maximum absolute deviation of 1.15 %. Experimental data from the literature, and theory-based calculations, are reproduced by the new equation with a maximum deviation of 16.13 %, and 10.77 %, respectively.

CAS / MDL: 7447-41-8

研究领域: 化学工程 · 热力学

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International Journal of Refrigeration · 2018 · IF 3.233

Experimental and theoretical research on the current efficiency of the electrodialysis regenerator for liquid desiccant air-conditioning system using LiCl solution

Qing Cheng,Shun Jiao

The liquid desiccant air-conditioning system conducts air dehumidification with liquid desiccant and is proposed as an alternative to the conventional vapor compression cooling system. The electrodialysis regeneration is suitable for the liquid desiccant, whose most important performance index is the current efficiency. In order to improve theoretical models of the liquid desiccant air-conditioning system based on ED regeneration, the current efficiency correlation of the ED regenerator is acquired based on several experiments and its effect on the system performance is researched in this paper. Current efficiencies of the ED regenerator in the experiment are among 20% and 70%. The increase of the concentration difference between regenerate and dilute desiccants, the operational current and the liquid desiccant concentration at the entrance of regenerate cells of the ED regenerator will all decrease the current efficiency. When the liquid desiccant concentration at the entrance of regenerate cells of the ED regenerator varies from 27% to 35%, the system performance coefficient increases from 4 to 6.2. The increase of the liquid desiccant concentration at the entrance of regenerate cells is harmful to the performance of the ED regenerator but beneficial to the performance of the whole system.

CAS / MDL: 7447-41-8

研究领域: 能源工程 · 环境工程

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A New Empirical Equation for the Specific Thermal Capacity of Aqueous LiCl Solutions in a Wide Range of Conditions

Experimental and theoretical research on the current efficiency of the electrodialysis regenerator for liquid desiccant air-conditioning system using LiCl solution