Performance analysis of a novel bifacial solar photothermic and radiative cooling module

Hu, Mingke; Zhao, Bin; Ao, Xianze; Suhendri; Cao, Jingyu; Wang, Qiliang; Riffat, Saffa; Su, Yuehong; Pei, Gang

Abstract

Solar energy and universe coldness are two renewable and clean energy constantly sent from outer space to the earth. Solar thermal collectors and radiative coolers respectively harvest heat and cooling energy in this context. However, their static and monofunctional spectral properties mismatch energy demands in regions with large air temperature fluctuations throughout the whole year. In this work, a rotatable bifacial solar photothermic and radiative cooling (PT-RC) module capable of flexibly switch between solar heating and radiative cooling modes is proposed to realize smart thermal management. In the solar heating mode with solar irradiance of 1000 W/m2, the PT-RC module shows 83.3% solar thermal efficiency, which is even slightly higher than that of a typical solar thermal module. In the radiative cooling mode, the PT-RC module reaches up to 69.9 W/m2 net radiative cooling power and 11.7 °C temperature reduction. The heat and cooling energy of the PT-RC module throughout a typical day in Hefei city totals 17.7 MJ. This bifacial PT-RC module provides an alternative solution for integrating solar energy and universe coldness and shows potential in flexibly providing heat and cooling energy in different seasons.

Citation

Hu, M., Zhao, B., Ao, X., Suhendri, Cao, J., Wang, Q., Riffat, S., Su, Y., & Pei, G. (2021). Performance analysis of a novel bifacial solar photothermic and radiative cooling module. Energy Conversion and Management, 236, Article 114057. https://doi.org/10.1016/j.enconman.2021.114057

• Journal Article Type: Article
• Acceptance Date: Mar 11, 2021
• Online Publication Date: Apr 25, 2021
• Publication Date: May 15, 2021
• Deposit Date: Apr 6, 2021
• Publicly Available Date: Apr 26, 2022
• Journal: Energy Conversion and Management
• Print ISSN: 0196-8904
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 236
• Article Number: 114057
• DOI: https://doi.org/10.1016/j.enconman.2021.114057
• Keywords: Fuel Technology; Renewable Energy, Sustainability and the Environment; Energy Engineering and Power Technology; Nuclear Energy and Engineering
• Public URL: https://nottingham-repository.worktribe.com/output/5434050
• Publisher URL: https://www.sciencedirect.com/science/article/abs/pii/S0196890421002338
• Additional Information: This article is maintained by: Elsevier; Article Title: Performance analysis of a novel bifacial solar photothermic and radiative cooling module; Journal Title: Energy Conversion and Management; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.enconman.2021.114057; Content Type: article; Copyright: © 2021 Published by Elsevier Ltd.