Study on direct heating desalination system with composite parabolic concentrator

被引：0

作者：

Yang D. ^{[1
]}

Ji X. ^{[1
]}

Chen Y. ^{[1
]}

Wang C. ^{[1
]}

Liao C. ^{[1
]}

Li Q. ^{[1
]}

机构：

[1] Solar Energy Research Institute, Yunnan Normal University, Kunming

来源：

Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2021年 / 42卷 / 12期

关键词：

Boiling distillation; Composite parabolic concentrator; Desalination; Direct heating; Performance analysis; Solar energy;

D O I：

10.19912/j.0254-0096.tynxb.2019-1426

中图分类号：

学科分类号：

摘要：

In order to achieve boiling distillation and to reduce the internal fouling, this paper design a direct heating desalination system with compound Parabolic concentrator (CPC). CPC is employed to heat conduction oil in the system. The salt water is effectively heated and rapidly vaporized by working fluid in the heat exchanger, after that, steam condenses into fresh water in the condenser. The maximum oil temperature at the inlet of the distiller reaches 118.1℃ in sunny summer weather. The internal temperature of the distiller reaches 94.8℃ at 11:00 am, which is higher than the local boiling point and can last until 16:30. The instantaneous heat collection efficiency of the desalination system is 51%, the water yield under the total effective solar collection area is 7.23 kg/d, the TDS of the produced water undulates but always keeps blow drinking water standards. The effective energy utilization of the desalination system is beyond 0.5 from 12:00 am to 16:30 pm, with a maximum of 0.63 at 16:40 pm. © 2021, Solar Energy Periodical Office Co., Ltd. All right reserved.

引用

页码：41 / 47

页数：6

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