Comparison and evaluation of solar photovoltaic thermal system with hybrid collector: An experimental study. (1st May 2021)

• Record Type: Journal Article
• Authors: Kazem, Hussein A.; Chaichan, Miqdam T; Al-Waeli, Ali H.A.; Sopian, K
• Is Part Of: Thermal science and engineering progress. Volume 22(2021)
• Publication Date: 2021-05-01
• Subjects: Photovoltaic/thermal -- Collector -- Electrical efficiency -- Thermal efficiency -- Experimental study; Heat engineering -- Periodicals; Heat engineering; Thermodynamics; Periodicals; 621.402
• DOI: 10.1016/j.tsep.2021.100845
• Languages: English
• ISSNs: 2451-9049

Abstract

Highlights: A PV/T hybrid (oscillatory/direct flow), proposed and compared with Web, direct and oscillatory collectors. Using hybrid collector enhances electrical and thermal efficiencies of PV/T. PV/T with hybrid collector outperforms PV/T's with direct, web and oscillatory collectors. Electrical efficiency of PV/T systems outperform conventional PV module. Abstract: In this paper, the evaluation and comparison of a newly designed PV/T hybrid collector with three PV/T systems and conventional PV in term of electrical and thermal performance is presented. The problem statement that drives this study is the nonhomogeneous distribution of heat on the PV module and in the collector, which produces a hot spot and reduce system efficiency. The proposed hybrid (oscillatory/direct flow), Web, direct and oscillatory PV/T collectors were designed and installed with a conventional PV in Oman. The outdoor experimental investigation was conducted at a mass flow rate of 0.020 kg/s. The proposed system improved the voltage and generated power by 28.5%, and 19.4%, respectively. Also, it was found that the hybrid PV/T has 9.11%, 9.98%, and 15.28% higher efficiency than oscillatory, direct and web PV/T's, respectively. On the other hand, the highest thermal efficiency was found to be 60.7% approached by the hybrid system while the highest is 53.3%, 37.0% and 18.7% for the oscillatory, direct and web collectors, respectively. Evaluation and comparison with literature results confirm that the proposed hybrid system provides a significant improvement and suitable for Oman and nearby countries with similar weather conditions.