Parametric analysis on G-PV/T collector: Performance optimization and energy trade-off among two critical structures under various outside conditions

Zhaomeng Li, Jie Ji, Xudong Zhao, Guiqiang Li, Yu Cui, Zhiying Song and Tingting Yao

Energy, 2022, vol. 255, issue C

Abstract: The utilization potentiality of PV/T which laminates PV onto glass cover to improve reliability (G-PV/T) was proved previously, but how to optimize the structure is not comprehensive. This study focuses on its optimization and energy trade-off among two critical structural parameters (i.e., packing factor, air gap thickness). Firstly, mathematical models for G-PV/T are established and validated by the experimental data. Specifically, a special G-PV/T without air gap is also considered, and where its’ difference in optical models and heat transfer models are stated. Secondly, the past studies of PV/T used to investigate parametric optimization by discussing only one parameter at a time, but this study points out that the optimization methods for these structural parameters are interrelated, and their coupling relationship is influenced by outside conditions. So a matrix of the two parameters is used to predict the daily performance of G-PV/T and the results are presented in three-dimensional two-independent-variables plots, evaluated by the first and second laws of thermodynamics. Suggestions are given for structural optimization depending on application requirements and energy trade-off. Thirdly, performance under three important outside conditions is predicted to discuss how the system performance is influenced and how the coupling relationship of the two critical parameters moves.

Keywords: Photovoltaic/thermal technology; Air gap; Packing factor; The first/second laws of the thermodynamics; Energy trade-off (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:255:y:2022:i:c:s0360544222013524

DOI: 10.1016/j.energy.2022.124449

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