Temperature effect in the energy degradation of photovoltaic power system

IF 1.1 Q3 Engineering

Journal of Thermal Engineering Pub Date : 2023-10-17 DOI:10.18186/thermal.1370726

Yasseen AJ ALMAHDAWI, Mohammed KH ABBAS, Ahmed AL-SAMARI, Nazar ALDABASH, Saadoon Abdul HAFEDH

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Abstract

The modelling of output power for the photovoltaic system is essential for system design and local resource prediction. Accurate photovoltaic power modelling the foremost vital issue is systems efficiency analysis. The temperature plays the main role in the energy degradation of the photovoltaic systems, especially in the host sites. In this paper, experimental and theoreti-cal investigation into the photovoltaic module energy degradation due to temperature effects. This work objectives to investigate the photovoltaic power generated due to the ambient tem-perature effect. The presented results show that the ambient temperature has positive effects on the photovoltaic module energy production during the winter period and negative effects during the summer period. For the proposed photovoltaic system with a capacity of 2.97 kWp the expected theoretical annual energy production by about 554.01 kWh while the annual experiment production was l493.73 kWh. The novelty of the work is to estimate the energy losses due to the ambient temperature effect on the photovoltaic energy production.

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光伏发电系统能量退化中的温度效应

光伏发电系统的输出功率建模是系统设计和局部资源预测的基础。准确的光伏发电建模是系统效率分析的重中之重。温度在光伏系统的能量退化中起主要作用，特别是在主站点。本文从实验和理论两方面研究了温度效应对光伏组件能量退化的影响。本工作旨在研究由于环境温度效应而产生的光伏发电。结果表明，环境温度在冬季对光伏组件的发电量有正向影响，在夏季对光伏组件的发电量有负向影响。本文提出的光伏系统容量为2.97 kWp，预计理论年发电量约为554.01 kWh，而实验年发电量为l493.73 kWh。该工作的新颖之处在于估算环境温度对光伏发电的影响所造成的能量损失。

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 Thermal Engineering THERMODYNAMICS-

CiteScore

2.40

自引率

18.20%

发文量

审稿时长

4 weeks

期刊介绍： Journal of Thermal Enginering is aimed at giving a recognized platform to students, researchers, research scholars, teachers, authors and other professionals in the field of research in Thermal Engineering subjects, to publish their original and current research work to a wide, international audience. In order to achieve this goal, we will have applied for SCI-Expanded Index in 2021 after having an Impact Factor in 2020. The aim of the journal, published on behalf of Yildiz Technical University in Istanbul-Turkey, is to not only include actual, original and applied studies prepared on the sciences of heat transfer and thermodynamics, and contribute to the literature of engineering sciences on the national and international areas but also help the development of Mechanical Engineering. Engineers and academicians from disciplines of Power Plant Engineering, Energy Engineering, Building Services Engineering, HVAC Engineering, Solar Engineering, Wind Engineering, Nanoengineering, surface engineering, thin film technologies, and Computer Aided Engineering will be expected to benefit from this journal’s outputs.