Liang Cai-Hang, Hu Jia-Li, Li Nan-Feng, He Zhi-Peng, Mo Chou, Zeng Si
Key Laboratory of Microelectronic Packaging and Assembly Technology of Guangxi Department of Education, School of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, China.
Guangxi Beitou Environmental Protection & Water Group Co., Ltd., Nanning 530025, China.
Membranes (Basel). 2023 Mar 27;13(4):383. doi: 10.3390/membranes13040383.
The hollow fiber membrane modules act as dehumidifiers and regenerators to avoid gas-liquid entrainment problems in direct-contact dehumidification systems. A solar-driven hollow fiber membrane dehumidification experimental rig was designed to investigate its performance from July to September in Guilin, China. The dehumidification, regeneration, and cooling performance of the system between 8:30 and 17:30 are analyzed. The energy utilization of the solar collector and system is investigated. The results show that solar radiation has a significant influence on the system. The hourly regeneration of the system has the same trend as the temperature of solar hot water, which ranges from 0.13 g/s to 0.36 g/s. The regeneration capacity of the dehumidification system is always larger than the dehumidification capacity after 10:30, which increases the solution concentration and the dehumidification performance. Further, it ensures stable system operation when the solar radiation is lower (15:30-17:50). In addition, the hourly dehumidification capacity and efficiency of the system ranges from 0.15 g/s to 0.23 g/s and 52.4 to 71.3%, respectively, with good dehumidification performance. The COP of the system and solar collector have the same trend, in which their maximum values are 0.874 and 0.634, respectively, with high energy utilization efficiency. The solar-driven hollow fiber membrane liquid dehumidification system performs better in regions with larger solar radiation.
中空纤维膜组件用作除湿器和再生器，以避免直接接触式除湿系统中的气液夹带问题。设计了一个太阳能驱动的中空纤维膜除湿实验装置，以研究其于7月至9月在中国桂林的性能。分析了该系统在8:30至17:30之间的除湿、再生和冷却性能。研究了太阳能集热器和系统的能量利用情况。结果表明，太阳辐射对该系统有显著影响。该系统的每小时再生量与太阳能热水温度具有相同趋势，范围为0.13 g/s至0.36 g/s。除湿系统的再生能力在10:30之后始终大于除湿能力，这提高了溶液浓度和除湿性能。此外，当太阳辐射较低时（15:30 - 17:50），它确保了系统的稳定运行。此外，该系统的每小时除湿量和效率分别为0.15 g/s至0.23 g/s和52.4%至71.3%，具有良好的除湿性能。该系统和太阳能集热器的性能系数具有相同趋势，其最大值分别为0.874和0.634，能量利用效率较高。太阳能驱动的中空纤维膜液体除湿系统在太阳辐射较大的地区性能更好。
