Performance analysis of different flow types of internally-cooled membrane-based liquid desiccant dehumidifiers
Performance analysis of different flow types of internally-cooled membrane-based liquid desiccant dehumidifiers
复制标题
内冷膜式液体除湿机不同流型性能分析
DOI：
10.1016/j.energy.2021.120597
复制
发表时间：
2021-08
期刊：
影响因子：
9
通讯作者：
Yao Ye
中科院分区：
文献类型：
--
作者：
Li Wei;Yao Ye
It is well known that internally-cooled membrane-based liquid desiccant dehumidifier (IMLDD) has better dehumidification efficiency than adiabatic membrane-based liquid desiccant dehumidifier (AMLDD). The flow directions of air, solution, and cooling water in the IMLDD can dramatically affect dehumidification and cooling performance. In this paper, the mathematical models for the IMLDD of ten flow types were developed and validated experimentally. Based on the validated model, the differences of air temperature and humidity among various flow types of the IMLDD were investigated, and the effects of operating conditions on the performance of different flow types were also studied thoroughly. The main conclusions of this paper include the following: The flow types of IMLDD have different average temperature and humidity differences between air and solution. Under different operating conditions, the IMLDD of flow type b4 always has a maximum total cooling capacity. The moisture removal rate of flow type b4 is up to 8.2% greater than flow type a2 of worst performance, and for the sensible cooling capacity, the flow type b4 is up to 5 times flow type a2. This paper can help researchers and engineers to choose the appropriate form of the IMLDD according to inlet conditions.
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DOI：
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