INVESTIGATION OF FLOATING RISING FILM MULTI EFFECTS SOLAR STILL WITH LIGHT CONCENTRATING

被引：0
|
作者：
Wang L. [1 ]
He Q. [1 ]
Ouyang Z. [1 ]
Zheng H. [1 ]
机构：
[1] School of Mechanical Engineering, Beijing Institute of Technology, Beijing
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2023年 / 44卷 / 03期
关键词：
desalination; distillation; heat and mass transfer; light concentration; solar energy;
D O I：
10.19912/j.0254-0096.tynxb.2021-1291
中图分类号：
学科分类号：
摘要：
A concentrated multi effects solar still with rising film was proposed to desalinate on the sea. The desalination device comprises a parabolic concentrator and a plurality of vertically arranged evaporation-condensation units. A hydrophilic wick is selected as the evaporator，and seawater forms a rising liquid film under the action of capillary suction，which effectively reduces the heating loss. The internal heat and mass transfer process was analyzed through the theoretical model. The effects of different operating parameters on the temperature，water yield and specific energy consumption of the unit were studied experimentally. The indoor steady-state research results show that when the solar irradiance is 900 W/m2，the internal temperature difference of the distiller is 56.9 ℃，and the water yield can reach 2.64 kg/ （m2·h）. Under the outdoor average irradiance of 603.7 W/m2，the daily water yield of the unit is 5.3 kg/ （m2·d）and the daily average specific energy consumption is 1591.6 kJ/kg. © 2023 Science Press. All rights reserved.
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页码：504 / 508
页数：4
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