CFD analysis of a one-pass photovoltaic/thermal air system with and without offset strip fins

Moustafa Al-Damook, Darron Dixon-Hardy, Peter J. Heggs, Mansour Al Qubeissi, Khaled Al-Ghaithi, Patrick E. Mason, Joshua Cottom

Research output: Contribution to journalConference article

2 Citations (Scopus)
19 Downloads (Pure)

Abstract

The focus on managing PV panel temperature has undergone a remarkable development in the last two decades. Specifically, in countries with moderate weather temperature and high insolation, the problem of keeping the PV cell temperature in an optimal range has been managed by use of PV/T collectors. In this work, a single pass PV/T collector using laminar air flow has been assessed. Two PV/T collector designs are utilised, one with and one without offset strip fins. COMSOL Multiphysics v5.3a has been used for the analysis of the thermal and electrical performances. Two assumptions were implemented in order to reduce the computational time from 95 hours to 7 hours, namely ignoring radiative effects between the fins and the wall channels, and representing thin layers as 2D boundaries, whilst ensuring a high level of conformity (4%),. Monocrystalline silicon PV cells were used with a power temperature coefficient of 0.41%. A validation against work in the literature was made, showing a good consistency. The objective of this work is to verify the performance of the air PV/T collector with offset strip fins compared to an unfinned air PV/T collector. The results reveal that the use of offset strip fins has a noticeable impact on both the electrical and thermal efficiencies of the system. In addition, the maximum combined efficiency (ηCo) for the finned PV/T system is 84.7% while the unfinned PV/T system is 51.2%.
Original languageEnglish
Article number03002
Number of pages5
JournalProceedings of the XI International Conference on Computational Heat, Mass and Momentum Transfer
Volume240
DOIs
Publication statusPublished - 27 Nov 2018

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Computational fluid dynamics
Air
Monocrystalline silicon
Temperature
Incident solar radiation
Hot Temperature

Bibliographical note

This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Copyright © and Moral Rights are retained by the author(s) and/ or other copyright owners. A copy can be downloaded for personal non-commercial research or study, without prior permission or charge. This item cannot be reproduced or quoted extensively from without first obtaining permission in writing from the copyright holder(s). The content must not be changed in any way or sold commercially in any format or medium without the formal permission of the copyright holders.

Keywords

  • Photovoltaic
  • Photovoltaic applications
  • Solar
  • Renewable energy
  • heat transfer
  • Heat Exchanger
  • Conjugate Heat transfer

ASJC Scopus subject areas

  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Mechanical Engineering

Cite this

CFD analysis of a one-pass photovoltaic/thermal air system with and without offset strip fins. / Al-Damook, Moustafa; Dixon-Hardy, Darron; Heggs, Peter J.; Al Qubeissi, Mansour; Al-Ghaithi, Khaled; Mason, Patrick E. ; Cottom, Joshua.

In: Proceedings of the XI International Conference on Computational Heat, Mass and Momentum Transfer , Vol. 240, 03002, 27.11.2018.

Research output: Contribution to journalConference article

Al-Damook, Moustafa ; Dixon-Hardy, Darron ; Heggs, Peter J. ; Al Qubeissi, Mansour ; Al-Ghaithi, Khaled ; Mason, Patrick E. ; Cottom, Joshua. / CFD analysis of a one-pass photovoltaic/thermal air system with and without offset strip fins. In: Proceedings of the XI International Conference on Computational Heat, Mass and Momentum Transfer . 2018 ; Vol. 240.
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abstract = "The focus on managing PV panel temperature has undergone a remarkable development in the last two decades. Specifically, in countries with moderate weather temperature and high insolation, the problem of keeping the PV cell temperature in an optimal range has been managed by use of PV/T collectors. In this work, a single pass PV/T collector using laminar air flow has been assessed. Two PV/T collector designs are utilised, one with and one without offset strip fins. COMSOL Multiphysics v5.3a has been used for the analysis of the thermal and electrical performances. Two assumptions were implemented in order to reduce the computational time from 95 hours to 7 hours, namely ignoring radiative effects between the fins and the wall channels, and representing thin layers as 2D boundaries, whilst ensuring a high level of conformity (4{\%}),. Monocrystalline silicon PV cells were used with a power temperature coefficient of 0.41{\%}. A validation against work in the literature was made, showing a good consistency. The objective of this work is to verify the performance of the air PV/T collector with offset strip fins compared to an unfinned air PV/T collector. The results reveal that the use of offset strip fins has a noticeable impact on both the electrical and thermal efficiencies of the system. In addition, the maximum combined efficiency (ηCo) for the finned PV/T system is 84.7{\%} while the unfinned PV/T system is 51.2{\%}.",
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