CaCl2和LiBr混合盐溶液除湿性能实验研究

为降低溶液除湿系统的生产成本及运行能耗，本文针对基于新型混合盐溶液的溶液除湿设备进行实验研究，构建溶液除湿系统及测试平台，以溴化锂（LiBr）和氯化钙（CaCl2）为混合盐溶液工作介质，对溶液除湿系统除湿模块进出口空气参数、再生模块进出口空气参数、系统功耗等进行测试，分析其除湿能力、制冷能力和除湿性能系数。根据混合盐溶液的初投资及工作性能，以溶液除湿系统全寿命周期的总费用作为衡量溶液综合性价比的指标，进行对比计算，结果表明：采用3:1的LiBr和CaCl2混合盐溶液除湿系统的综合性价比最高，总费用最高可降低14.5%。

Experimental Study on Hybrid Liquid Desiccant Air Conditioning with CaCl2 and LiBr

To reduce the production cost and running energy consumption of a solution dehumidification system, experiments were conducted in this study on dehumidification equipment based on a mixed salt solution consisting of LiBr and CaCl2. The temperature and humidity of inlet and outlet air as well as the energy consumption of the dehumidification device were measured. The dehumidification capacity, refrigeration capacity, and dehumidification performance coefficient of the system were analyzed. Based on the initial investment and working performance of the mixed salt solution, a comprehensive performance and cost ratio of the solution was weighed by considering the life cycle cost of the solution dehumidification system. The results showed that the mixed LiBr and CaCl2 solution at a ratio of 3:1 can obtain a higher dehumidification efficiency and lower cost compared to other combination, and the total cost can be reduced by 14.5%.