Analysis of a vacuum-based photovoltaic thermal collector

Radwan, Ali; Katsura, Takao; Memon, Saim; Abo-Zahhad, Essam M.; Serageldin, Ahmed A.; Nagano, Katsunori

doi:10.1016/j.egyr.2020.11.255


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Analysis of a vacuum-based photovoltaic thermal collector

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Title:	Analysis of a vacuum-based photovoltaic thermal collector
Authors:	Radwan, Ali Browse this author
	Katsura, Takao Browse this author →KAKEN DB
	Memon, Saim Browse this author
	Abo-Zahhad, Essam M. Browse this author
	Serageldin, Ahmed A. Browse this author
	Nagano, Katsunori Browse this author →KAKEN DB
Keywords:	Vacuum-based photovoltaic thermal collector
	Vacuum pressure
	Thermal energy
	CFD
	Minichannel
Issue Date:	Dec-2020
Publisher:	Elsevier
Journal Title:	Energy Reports
Volume:	6
Start Page:	236
End Page:	242
Publisher DOI:	10.1016/j.egyr.2020.11.255
Abstract:	In this study, a new design of photovoltaic thermal (PV/T) collector is proposed. This design uses a vacuum layer above the silicon wafer and not exists in the traditional PV/T collector. This layer is used to decrease the heat loss from the top surface of the PV/T collector. The analysis is conducted using a 3D thermal modeling. The new collector design with the vacuum layer achieved a 26.6% increase in the thermal power while keeping the electrical the same at Reynolds number of 50 and solar radiation of 1000 W/m(2). In addition, the degradation of the vacuum pressure slightly influence the thermal performance while increasing the vacuum pressure from 0.01 Pa to 10 Pa. While further increase in the vacuum pressure from 10 Pa to 1.013x10(5) Pa substantially decreases the gained thermal power with insignificant increase in the electrical power.
Rights:	https://creativecommons.org/licenses/by/4.0/
Type:	article
URI:	http://hdl.handle.net/2115/80406
Appears in Collections:	工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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