Experimental research on night heat loss and dust effect of distillation-solar chimney power plant

Journal article

Zuo, L., Huang, L., Dai, P., Chen, Y., Chen, S., Liu, S. and Ge, Y.T. (2023). Experimental research on night heat loss and dust effect of distillation-solar chimney power plant . Applied Thermal Engineering. 234 (2023), p. 121248. https://doi.org/10.1016/j.applthermaleng.2023.121248
AuthorsZuo, L., Huang, L., Dai, P., Chen, Y., Chen, S., Liu, S. and Ge, Y.T.
Abstract

To more comprehensively grasp the operating characteristics of the solar chimney power plants combined with
distillation and provide a valuable reference for the design and operation of the power plants, a comparative test
platform was built in this paper, which adopted manual covering of insulation layer and dust, and explored for
the first time the impact of the insulation layer and dust accumulation on the operational characteristics of power
plants. The results show that the insulation layer can increase the temperature rise of the airflow at night by a
maximum of 2.1 ◦C, which is 25.9 %; but at the same time, it will reduce the temperature difference between the
seawater and the solar still cover, resulting in a decrease of more than 7 % in daily water yield. Therefore, if the
power plant pursues water production, it is not necessary to install insulation layers. Dust accumulation will
affect the heat collection and storage performance of the system, reduce the power output, and shorten the
effective power generation time; at the same time, lowering the seawater temperature will also reduce the water
yield of the system by more than 10 %, so the power plant must regularly clean the collector roof.

KeywordsSolar chimney power plant, Desalination, Heat collector, Insulation layer, Dust accumulation effect
Year2023
JournalApplied Thermal Engineering
Journal citation234 (2023), p. 121248
PublisherElsevier
ISSN1873-5606
Digital Object Identifier (DOI)https://doi.org/10.1016/j.applthermaleng.2023.121248
Web address (URL)https://www.editorialmanager.com/ate/default2.aspx
Publication dates
Print29 Jul 2023
Publication process dates
Accepted29 Jul 2023
Deposited22 Aug 2023
Accepted author manuscript
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