Influence of trapezoidal tube parameters on electrical and thermal performance of hybrid photovoltaic solar panels integrated with phase change materials

IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering Pub Date : 2025-01-01 DOI:10.1016/j.csite.2024.105641

Mohamed A. Alnakeeb, Mohamed A. Abdel Salam, Mohamed A. Hassab, Wael M. El-Maghlany

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Abstract

The photovoltaic-thermal hybrid system with phase-change material is designed to provide simultaneous thermal and electrical power output. In this paper, a detailed two-dimensional modelling of a photovoltaic thermal using phase change material is performed. The system utilizes water as the heat transfer fluid, which flows through a uniquely designed trapezoidal inner tube. This configuration is explored to enhance heat transfer and overall system efficiency. The model is numerically solved using ANSYS Fluent 19.2 to analyse the performance characteristics. The numerical analysis investigates the performance characteristics of the photovoltaic thermal technology combined with phase change material system across various aspect ratios (0.25, 0.5, 1, 1.5, and 2) and heights (3, 6, and 9 mm), marking a novel exploration into optimizing these parameters for enhanced energy efficiency. The phase change material melting is simulated by employing the enthalpy-porosity method. The validation of the numerical technique is confirmed by comparing the current study's results to the outcomes of the previous experimental study. Based on the findings, the overall efficiency improves as the aspect ratio and height increase. Among all simulated cases, the highest overall efficiency is attained with aspect ratio of 2 and a height of 9 mm, with a value of 70.1 %.

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梯形管参数对相变材料混合光伏太阳能板电学和热学性能的影响

采用相变材料的光电热混合系统可同时提供热能和电能输出。在本文中，详细的二维建模的光伏热利用相变材料进行。该系统利用水作为传热流体，流经独特设计的梯形内管。这种配置是探索提高传热和整体系统效率。利用ANSYS Fluent 19.2对模型进行数值求解，分析其性能特性。数值分析研究了光伏热技术与相变材料系统在不同宽高比（0.25、0.5、1、1.5和2）和高度（3,6和9 mm）下的性能特征，标志着优化这些参数以提高能效的新探索。采用焓孔法模拟相变材料的熔化过程。通过将本研究的结果与前人的实验结果进行比较，验证了数值方法的有效性。基于研究结果，整体效率随着长宽比和高度的增加而提高。在所有模拟工况中，当长径比为2、高度为9 mm时，总效率最高，为70.1%。

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

Case Studies in Thermal Engineering Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

8.60

自引率

11.80%

发文量

812

审稿时长

76 days

期刊介绍： Case Studies in Thermal Engineering provides a forum for the rapid publication of short, structured Case Studies in Thermal Engineering and related Short Communications. It provides an essential compendium of case studies for researchers and practitioners in the field of thermal engineering and others who are interested in aspects of thermal engineering cases that could affect other engineering processes. The journal not only publishes new and novel case studies, but also provides a forum for the publication of high quality descriptions of classic thermal engineering problems. The scope of the journal includes case studies of thermal engineering problems in components, devices and systems using existing experimental and numerical techniques in the areas of mechanical, aerospace, chemical, medical, thermal management for electronics, heat exchangers, regeneration, solar thermal energy, thermal storage, building energy conservation, and power generation. Case studies of thermal problems in other areas will also be considered.