Integrated photovoltaic-thermal system utilizing front surface water cooling technique: An experimental performance response.

Autor:	Mostakim K; Department of Mechanical Engineering, Rajshahi University of Engineering & Technology, Rajshahi - 6204, Bangladesh., Akbar MR; Department of Mechanical Engineering, Rajshahi University of Engineering & Technology, Rajshahi - 6204, Bangladesh., Islam MA; Department of Mechanical Engineering, IUBAT-International University of Business Agriculture and Technology, Bangladesh., Islam MK; School of Science and Engineering, Canadian University of Bangladesh, Dhaka - 1212, Bangladesh.; Department of Mechanical Engineering, Iowa State University, Union Drive, Ames, IA, USA.
Jazyk:	angličtina
Zdroj:	Heliyon [Heliyon] 2024 Jan 30; Vol. 10 (3), pp. e25300. Date of Electronic Publication: 2024 Jan 30 (Print Publication: 2024).
DOI:	10.1016/j.heliyon.2024.e25300
Abstrakt:	In the realm of photovoltaic-thermal (PVT) systems, optimizing operating temperatures for photovoltaic (PV) panels is a challenge. This study introduces a novel solution: a sprayed water PVT system that simultaneously harnesses energy and electricity. The aim is twofold: generate electricity through PV panels and produce hot water via a flat plate collector, using an innovative cooling mechanism. Water sprayed onto the PV panel's surface flows to a collector for storage. With varied flow rates, optimal panel efficiency occurs at a 45⁰ tilt angle, accompanied by lower collector outlet temperatures at higher flow rates. The collector achieves a peak thermal efficiency of 70.6 %, producing hot water at 84.6 °C. Notably, a significant PV panel efficiency enhancement, up to 16.78 %, especially at 1.56 L/min flow rate, is observed. The cooling technique consistently reduces panel temperatures from 45.08 °C to 34.12 °C. A self-cleaning spray mechanism improves efficiency by 2.53 %, resulting in an overall system efficiency of 83.3 %. This research offers an innovative approach to enhance energy generation and electricity in PVT systems, promising sustainable energy optimization. Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (© 2024 The Authors. Published by Elsevier Ltd.)
Databáze:	MEDLINE
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