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ExperimentaIstudyonsoIarautomatictrackingmembranedistiIationsystem

Authors： ZHANG Yixuan, YANG Xiaohong, ZHANG Qinyi, SHI Panjing, TIAN Rui

Units： College of energy and Power Engineering, Inner Mongolia University of Technology, Hohhot 010051, China;Key Laboratory of Wind and Solar Energy Utilization Technology, Hohhot 010051, China

KeyWords： solar energy; automatic tracking; hollow fiber; membrane flux

ClassificationCode：TK124;TQ028

year,volume(issue):pagination： 2022,42(6):125-133

Abstract：

The outdoor solar automatic tracking membrane distillation system was built and designed. Self-made brackish water with a ratio of brackish water, observed the ion retention effect of the water produced by membrane distillation under different membrane distillation methods, and studied the fluid temperature, flow rate, vacuum degree, and the effect of parallel membrane modules on the performance of vacuum membrane distillation process. Secondly, the heat transfer performance of the collector was tested under different tracking methods, and the effect of solar irradiation on photovoltaic modules was studied. Finally, a test analysis of the system performance with the change of solar irradiance is carried out. The results show that the rejection rate of the brackish water membrane distillation product water is maintained above 97%; the membrane flux increases with the increase of temperature and vacuum, and the flow rate has little effect on the membrane flux; the water output of parallel membrane modules is twice that of a single membrane module. The optimal circulation flow of the vacuum collector and the heat preservation water tank is 200 L/h; the automatic tracking method collects more heat; the output power of the photovoltaic module is proportional to the solar irradiance. Outdoor vacuum membrane distillation is used in the automatic tracking mode. When the solar collector area is 1.82m2 and the photovoltaic panel area is 6.5m2, the maximum membrane flux is 7.70 kg/(m2·h), and the maximum membrane distillation water production is 462.27g/h.

Funds：

国家自然科学基金项目(51866011)

AuthorIntro：

张艺堂(1999-),女 ,山西省长治市人 ,硕士生 ,研究方向为界面蒸发海水淡化

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