机械振荡和金属泡沫对聚光光伏组件储能的协同效应：数值研究

IF 7.1 2区工程技术 Q1 ENERGY & FUELS

Sustainable Energy Technologies and Assessments Pub Date : 2025-04-01 DOI:10.1016/j.seta.2025.104301

H. Rahmanian-Koushkaki , S. Rahmanian , M. Setareh , S. Chen

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引用次数: 0

摘要

本研究探讨了机械振荡和金属泡沫对相变材料（PCM）外壳聚光光伏电池蓄热的综合影响。研究了泡沫孔隙度（85%、90%、95%）、振荡频率（5、10、20 Hz）和振幅（0.5、1、1.5 mm）等参数对液体分数、温度和涡度的影响。研究发现，由于循环流量的增加，PCM的机械振荡融化速度更快。水平振荡比垂直振荡更有效，显著缩短了PCM和PCM-泡沫混合物的完全熔化时间，特别是在孔隙率为85%时。结果表明，85%、90%和95%孔隙率的PCM泡沫材料在水平振荡下的完全熔化时间比在垂直振荡下的完全熔化时间分别缩短18.8%、45.7%、38.9%和35.3%。更高的振荡频率和振幅通过产生更大的涡流和增强对流换热，进一步使熔化时间分别缩短22%和17%。

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Synergic effect of mechanical oscillation and metal foam on energy storage of PCM-concentrated photovoltaic modules: Numerical study

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Synergic effect of mechanical oscillation and metal foam on energy storage of PCM-concentrated photovoltaic modules: Numerical study

This research explores the combined effect of mechanical oscillation and metal foam on the thermal energy storage of a concentrated photovoltaic cell with a phase change material (PCM) enclosure. Various parameters such as foam porosity (85 %, 90 %, 95 %), oscillation frequency (5, 10, 20 Hz), and amplitude (0.5, 1, 1.5 mm) were studied for their impact on liquid fraction, temperature, and vorticity. The study found that PCM melts faster with mechanical oscillation due to increased circulation flow. Horizontal oscillation proved more effective than vertical, significantly reducing the complete melting time for PCM and PCM-foam mixtures, especially at 85 % porosity. As a result, the complete melting time of the PCM, PCM-foam porosity of 85 %, 90 % and 95 % under horizontal oscillation is 18.8 %, 45.7 %, 38.9 % and 35.3 % lower than the one in identical cases under vertical oscillation. Higher oscillation frequency and amplitude further reduced melting time by 22 % and 17 % respectively through generating larger vortices and enhancing convective heat transfer.

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来源期刊

Sustainable Energy Technologies and Assessments Energy-Renewable Energy, Sustainability and the Environment

CiteScore

12.70

自引率

12.50%

发文量

1091

期刊介绍： Encouraging a transition to a sustainable energy future is imperative for our world. Technologies that enable this shift in various sectors like transportation, heating, and power systems are of utmost importance. Sustainable Energy Technologies and Assessments welcomes papers focusing on a range of aspects and levels of technological advancements in energy generation and utilization. The aim is to reduce the negative environmental impact associated with energy production and consumption, spanning from laboratory experiments to real-world applications in the commercial sector.