太阳能驱动的中空纤维膜液体除湿系统的试验研究  

Experiment on solar-driven hollow fiber membrane liquid dehumidifying system

作　　者：胡家利 何智鹏 梁才航[1] 李振兴 Hu Jiali;He Zhipeng;Liang Caihang;Li Zhenxing(School of Mechanical and Electrical Engineering,Guilin University of Electronic Science and Technology)

机构地区：[1]桂林电子科技大学机电工程学院

出　　处：《制冷与空调》2022年第8期84-91,97,共9页Refrigeration and Air-Conditioning

基　　金：国家自然科学基金(51566002);广西自然科学基金(2018GXNSFAA281347);广西制造系统与先进技术重点实验室基金(19050-44-001Z)。

摘　　要：中空纤维膜组件作为除湿器和再生器,避免直接接触式除湿系统中的气液夹带问题。本文搭建太阳能驱动的中空纤维膜液体除湿系统试验台,研究桂林地区不同运行条件对系统性能的影响,并与冷冻除湿系统进行对比。结果表明:除湿器的除湿性能与空气相对湿度、溶液流量和冷却水流量正相关,与除湿空气流量和冷却水温度负相关,显热效率范围为0.251~0.921,潜热效率范围为0.232~0.822;再生器的再生量与溶液流量和再生空气流量正相关,溶液温度达到50℃时可实现良好的再生性能;空气流量对COP影响较大,冷却水流量对COP影响较小;电效率约为常规冷冻除湿系统的1.5倍。Hollow fiber membrane modules are used as dehumidifiers and regenerators to avoid the problem of gas-liquid entrainment in direct contact dehumidifying systems. A solar-driven hollow fiber membrane liquid dehumidifying system test bench is built to study the influence of different operating conditions on the system performance in Guilin, and it is compared with the refrigeration dehumidifying system. The results show that the dehumidification performance of the dehumidifier is positively correlated with air relative humidity, solution flow rate and cooling water flow rate, while negatively correlated with air flow rate and cooling water temperature. The sensible heat efficiency ranges from 0.251 to 0.921, and the latent heat efficiency ranges from 0.232 to 0.822. The regeneration capacity of the regenerator is positively correlated with the solution flow rate and regeneration air flow rate. When the solution temperature reaches 50 ℃, it can achieve great regeneration performance. The air flow rate has a great impact on COP, and the cooling water flow rate has a small impact on COP. The electrical efficiency is about 1.5 times of that of the common refrigeration dehumidifying system.

关 键 词：太阳能 中空纤维膜组件 液体除湿 除湿性能 再生性能 性能系数 

分 类 号：TU8[建筑科学]