Thermal and electrical properties of photovoltaic cell with linear phenomenological heat transfer law

IF 4.3 3区工程技术 Q1 MECHANICS

Journal of Non-Equilibrium Thermodynamics Pub Date : 2024-01-05 DOI:10.1515/jnet-2023-0056

Jun Li, Lingen Chen

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Abstract

The thermal and electrical properties of photovoltaic cell (PVC) under linear phenomenological heat transfer law between it and the environment is studied through finite time thermodynamics and the volt-ampere characteristic equation. The properties of PVC are affected by heat transfer between PVC and environment. There are optimal solar radiation intensity and PVC output voltage (OV), which make the photoelectric conversion efficiency (PECE) of PVC reach the highest value. When OV and solar radiation intensity are 28.50 V and 700 W/m2, the maximum PECE is 0.156. There is also the best solar radiation intensity, which makes the open-circuit voltage (OCV) reach the maximum. When solar radiant intensity is 669 W/m2, the maximum OCV is 33.14 V. The values of power output and short-circuit current (SCC) are monotonically increasing with solar radiation intensity. Given solar radiation intensity, the power output and OV exhibit a parabolic shape. The operating temperature falls first and then grows with the OV. However, the change of operating temperature with OV is not much. Band gap is a decreasing function of operating temperature. This article can give theoretical support for the design and use of PVCs.

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具有线性现象传热规律的光伏电池的热学和电学特性

通过有限时间热力学和伏安特性方程，研究了光伏电池（PVC）与环境之间线性现象传热规律下的热特性和电特性。聚氯乙烯的特性受聚氯乙烯与环境之间热传递的影响。存在最佳太阳辐射强度和聚氯乙烯输出电压（OV），使聚氯乙烯的光电转换效率（PECE）达到最高值。当 OV 和太阳辐射强度分别为 28.50 V 和 700 W/m2 时，PECE 最大，为 0.156。还有一个最佳的太阳辐射强度，它使开路电压（OCV）达到最大值。当太阳辐射强度为 669 W/m2 时，最大开路电压为 33.14 V。功率输出和短路电流（SCC）值随太阳辐射强度单调递增。在太阳辐射强度一定的情况下，功率输出和 OCV 呈现抛物线形状。工作温度先下降，然后随 OV 增长。不过，工作温度随 OV 的变化不大。带隙是工作温度的递减函数。本文可为聚氯乙烯的设计和使用提供理论支持。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Non-Equilibrium Thermodynamics 物理-力学

CiteScore

9.10

自引率

18.20%

发文量

审稿时长

1 months

期刊介绍： The Journal of Non-Equilibrium Thermodynamics serves as an international publication organ for new ideas, insights and results on non-equilibrium phenomena in science, engineering and related natural systems. The central aim of the journal is to provide a bridge between science and engineering and to promote scientific exchange on a) newly observed non-equilibrium phenomena, b) analytic or numeric modeling for their interpretation, c) vanguard methods to describe non-equilibrium phenomena. Contributions should – among others – present novel approaches to analyzing, modeling and optimizing processes of engineering relevance such as transport processes of mass, momentum and energy, separation of fluid phases, reproduction of living cells, or energy conversion. The journal is particularly interested in contributions which add to the basic understanding of non-equilibrium phenomena in science and engineering, with systems of interest ranging from the macro- to the nano-level. The Journal of Non-Equilibrium Thermodynamics　has recently expanded its scope to place new emphasis on theoretical and experimental investigations of non-equilibrium phenomena in thermophysical, chemical, biochemical and abstract model systems of engineering relevance. We are therefore pleased to invite submissions which present newly observed non-equilibrium phenomena, analytic or fuzzy models for their interpretation, or new methods for their description.