Zhonghe Han
Electrical and thermal performance comparison between PVT-ST and PV-ST systems
Han, Zhonghe; Liu, Kaixin; Li, Guiqiang; Zhao, Xudong; Shittu, Samson
Authors
Kaixin Liu
Guiqiang Li
Professor Xudong Zhao Xudong.Zhao@hull.ac.uk
Professor of Engineering/ Director of Research
Samson Shittu
Abstract
Both photovoltaic (PV), and photovoltaic thermal (PVT) are technologies that use solar energy for power output. Combining them with solar thermal (ST) can enable the generation of electricity as well as high-temperature hot water. In this study, The heat transfer model was established to investigate the thermal, electrical and overall performance of the two systems, which one is a separately operating PV and ST system (i.e. PV-ST system) and the other is a PVT and ST system in series (i.e. PVT-ST). By comparing the electrical, thermal and overall performance of the two combinations under different solar radiation, ambient temperature and inlet temperature, the application range, advantages and disadvantages of the two combinations are given, which can provide guidance for the design of higher electrical and thermal output system. The comparative study of the two systems shows that the electrical efficiency, thermal efficiency and primary energy saving efficiency of the PV-ST system are higher than that of the PVT-ST system under the conditions of low ambient temperature and solar radiation. This makes the PV-ST system have a wider application prospect in such low temperature and weak radiation environment conditions. However, under the environmental conditions of higher ambient temperature and stronger solar radiation intensity, the electro-thermal efficiency and primary energy saving efficiency of PVT-ST system will be higher than that of PV-ST system. The PVT-ST system will be widely used in high temperature and strong radiation conditions.
Citation
Han, Z., Liu, K., Li, G., Zhao, X., & Shittu, S. (2021). Electrical and thermal performance comparison between PVT-ST and PV-ST systems. Energy, 237, Article 121589. https://doi.org/10.1016/j.energy.2021.121589
Journal Article Type | Article |
---|---|
Acceptance Date | Jul 23, 2021 |
Online Publication Date | Jul 28, 2021 |
Publication Date | Dec 15, 2021 |
Deposit Date | Aug 9, 2021 |
Publicly Available Date | Jul 29, 2022 |
Journal | Energy |
Print ISSN | 0360-5442 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 237 |
Article Number | 121589 |
DOI | https://doi.org/10.1016/j.energy.2021.121589 |
Keywords | Photovoltaic; PVT; Electrical and thermal; Performance comparison; Heat transfer |
Public URL | https://hull-repository.worktribe.com/output/3820427 |
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Publisher Licence URL
https://creativecommons.org/licenses/by-nc-nd/4.0/
Copyright Statement
© 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
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