Experimental investigation of photovoltaic thermal (PVT) system incorporating water-copper oxide nanofluid

IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering Pub Date : 2025-06-18 DOI:10.1016/j.csite.2025.106519

Jitendra Satpute , Srinidhi Campli , Khaled Alnamasi , Abdullah M.A. Alsharif , Muhammad Nasir Bashir

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引用次数: 0

Abstract

The present study investigates energy performance characteristics by incorporating spiral flow rectangular thermal absorber using water, CuO-water nanofluid and comparing it with a non-cooled PV system. The study aims to introduce advance method to enhance thermo-electrical performance and lifespan of PV by reducing PV surface temperature. The study present newly designed PVT configuration, nanofluid preparation, characterization at altering concentration, experimental methodology and its significance in identifying the optimum design of PVT system. The non-cooled system reached an average PV temperature of 61.4 °C reduced to 50.80 °C with water cooling and further reduced to 45.30 °C with nanofluid-associated cooling. The electrical efficiency of PVT with nanofluid was 9.05 % which was 7.1 % with water cooling and limited to 5.74 % for non-cooled systems. The thermal efficiency of nanofluid PVT was 67.40 % which was 56.52 % higher than water-cooled PVT due to improved heat recovery by nanoparticles. The energy-saving efficiency of PVT with water and PVT with nanofluid coolant was 20.91 % and 31.22 % respectively. It was seen that increasing nanoparticle concentration increases heat transfer thereby electro-thermal efficiency of PVT with nanofluid. The study was performed for 1 -5wt% CuO-nanoparticle concentration and found that the highest thermal, electrical, and energy-saving efficiency of 67.40 %, 9.05 %, and 31.22 % were obtained at 5 wt% concentration values. It is concluded that designed PVT system maximize performance efficiency than water and conventional non cooled system and can in implemented in large scale and has potential in domestic and industrial applications for commercialization with slight modifications. It was also found that increasing nanoparticle concentration also increases friction factor and pressure drop and also carries additional manufacturing and processing costs as a counterpart.

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水-氧化铜纳米流体光伏热（PVT）系统实验研究

本研究通过采用水、cuo -水纳米流体加入螺旋流矩形吸热器，并将其与非制冷光伏系统进行比较，研究了其能量性能特征。本研究旨在介绍通过降低光伏表面温度来提高光伏热电性能和寿命的先进方法。本文介绍了新设计的PVT结构、纳米流体制备、变浓度表征、实验方法及其对PVT系统优化设计的意义。非冷却系统的平均PV温度从61.4°C降至50.80°C，通过纳米流体相关冷却进一步降至45.30°C。纳米流体对PVT的电效率为9.05%，水冷时为7.1%，非冷却时为5.74%。纳米流体PVT的热效率为67.40%，比水冷PVT高56.52%，这是由于纳米颗粒提高了热回收能力。加水和加纳米流体冷却剂的PVT节能效率分别为20.91%和31.22%。结果表明，纳米颗粒浓度的增加增加了传热，从而提高了纳米流体PVT的电热效率。当cuo纳米颗粒浓度为1 -5wt%时，其热效率、电效率和节能效率分别为67.40%、9.05%和31.22%。结果表明，所设计的PVT系统比传统的水冷系统和非冷系统具有最大的性能效率，可以大规模实施，并具有在国内和工业上的商业化应用潜力。研究还发现，纳米颗粒浓度的增加也会增加摩擦系数和压降，同时也会增加相应的制造和加工成本。

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.