Analysis of a vacuum-based photovoltaic thermal collector

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

doi:10.1016/j.egyr.2020.11.255

Analysis of a vacuum-based photovoltaic thermal collector

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

Research output: Contribution to journal › Conference article › peer-review

9 Citations (Scopus)

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/m². 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 1.013×10⁵ Pa substantially decreases the gained thermal power with insignificant increase in the electrical power.

Original language	English
Pages (from-to)	236-242
Number of pages	7
Journal	Energy Reports
Volume	6
Issue number	S9
Early online date	22 Dec 2020
DOIs	https://doi.org/10.1016/j.egyr.2020.11.255
Publication status	Published - 22 Dec 2020
Externally published	Yes
Event	7th International Conference on Power and Energy Systems Engineering - Fukuoka, Japan Duration: 26 Sept 2020 → 29 Sept 2020 Conference number: 7

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

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10.1016/j.egyr.2020.11.255Licence: CC BY

Cite this

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title = "Analysis of a vacuum-based photovoltaic thermal collector",

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/m2. 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 1.013×105 Pa substantially decreases the gained thermal power with insignificant increase in the electrical power.",

keywords = "CFD, Minichannel, Thermal energy, Vacuum pressure, Vacuum-based photovoltaic thermal collector",

author = "Ali Radwan and Takao Katsura and Saim Memon and Abo-Zahhad, \{Essam M.\} and Serageldin, \{Ahmed A.\} and Katsunori Nagano",

note = "Publisher Copyright: {\textcopyright} 2020 The Author(s); 7th International Conference on Power and Energy Systems Engineering, CPESE 2020 ; Conference date: 26-09-2020 Through 29-09-2020",

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doi = "10.1016/j.egyr.2020.11.255",

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T1 - Analysis of a vacuum-based photovoltaic thermal collector

AU - Radwan, Ali

AU - Katsura, Takao

AU - Memon, Saim

AU - Abo-Zahhad, Essam M.

AU - Serageldin, Ahmed A.

AU - Nagano, Katsunori

N1 - Conference code: 7

PY - 2020/12/22

Y1 - 2020/12/22

N2 - 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/m2. 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 1.013×105 Pa substantially decreases the gained thermal power with insignificant increase in the electrical power.

AB - 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/m2. 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 1.013×105 Pa substantially decreases the gained thermal power with insignificant increase in the electrical power.

KW - CFD

KW - Minichannel

KW - Thermal energy

KW - Vacuum pressure

KW - Vacuum-based photovoltaic thermal collector

UR - https://www.scopus.com/pages/publications/85098870863

U2 - 10.1016/j.egyr.2020.11.255

DO - 10.1016/j.egyr.2020.11.255

M3 - Conference article

AN - SCOPUS:85098870863

SN - 2352-4847

VL - 6

SP - 236

EP - 242

JO - Energy Reports

JF - Energy Reports

IS - S9

T2 - 7th International Conference on Power and Energy Systems Engineering

Y2 - 26 September 2020 through 29 September 2020

ER -

Analysis of a vacuum-based photovoltaic thermal collector

Abstract

UN SDGs

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