Enhancing the performance of photovoltaic–thermal collector using CNT-infused MgO nanofluids and natural additive

IF 3 3区 工程技术 Q2 CHEMISTRY, ANALYTICAL Journal of Thermal Analysis and Calorimetry Pub Date : 2024-08-05 DOI:10.1007/s10973-024-13530-9
M. Arulprakasajothi, N. Poyyamozhi, A. Saranya, Suresh Vellaiyan, K. Elangovan
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Abstract

The present work intended to explore the synergistic effects of incorporating carbon nanotubes infused with magnesium oxide nanofluid and dragon fruit extract as a natural additive in photovoltaic–thermal collector systems on its performance in terms of both electrical and thermal energy yield. The proposed methodology was meticulously developed and implemented to assess the efficiency of a hybrid system integrating nano-phase change material and nanofluid in a photovoltaic–thermal configuration. This novel setup was subjected to a comprehensive comparative analysis against a traditional liquid-cooled photovoltaic–thermal system and a standalone photovoltaic module. The study also encompassed variations in cooling techniques, including water with different flow rates for the photovoltaic–thermal system, and the incorporation of nano-phase change material and nanofluid with varying concentrations and flow rates within the hybrid collector. The outcomes demonstrated that at these respective flow rates, the maximum thermal efficiency of the photovoltaic–thermal collector stood at 66.28% and 74.02%. Likewise, the peak electrical efficiency at the same flow rates was recorded as 20.79% and 21.96%. The outcomes of the investigation highlight the higher thermal conductivity of the nanofluid compared to the base fluid, leading to a slight augmentation in fluid density and viscosity. The results obtained from this investigation were found to be consistent with those documented in existing scientific literature.

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利用注入 CNT 的氧化镁纳米流体和天然添加剂提高光伏集热器的性能
本研究旨在探索将碳纳米管注入氧化镁纳米流体和火龙果提取物作为天然添加剂加入光伏热收集系统对其电能和热能产出性能的协同效应。为评估光伏热配置中集成纳米相变材料和纳米流体的混合系统的效率,对所提出的方法进行了精心开发和实施。这种新型装置与传统的液体冷却光伏热系统和独立的光伏模块进行了全面的比较分析。研究还包括冷却技术的变化,包括光伏热系统使用不同流速的水,以及在混合集热器中加入不同浓度和流速的纳米相变材料和纳米流体。结果表明,在这些不同的流速下,光电热能集热器的最高热效率分别为 66.28% 和 74.02%。同样,在相同的流速下,峰值电效率分别为 20.79% 和 21.96%。研究结果表明,与基础流体相比,纳米流体的热传导率更高,从而导致流体密度和粘度略有增加。这项研究得出的结果与现有科学文献中记载的结果一致。
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来源期刊
CiteScore
8.50
自引率
9.10%
发文量
577
审稿时长
3.8 months
期刊介绍: Journal of Thermal Analysis and Calorimetry is a fully peer reviewed journal publishing high quality papers covering all aspects of thermal analysis, calorimetry, and experimental thermodynamics. The journal publishes regular and special issues in twelve issues every year. The following types of papers are published: Original Research Papers, Short Communications, Reviews, Modern Instruments, Events and Book reviews. The subjects covered are: thermogravimetry, derivative thermogravimetry, differential thermal analysis, thermodilatometry, differential scanning calorimetry of all types, non-scanning calorimetry of all types, thermometry, evolved gas analysis, thermomechanical analysis, emanation thermal analysis, thermal conductivity, multiple techniques, and miscellaneous thermal methods (including the combination of the thermal method with various instrumental techniques), theory and instrumentation for thermal analysis and calorimetry.
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