菲涅尔聚光的太阳能脉动热管集热器性能实验研究

李晓琳; 吴海峰; 徐荣吉; 王瑞祥; 赵远强

doi:10.19912/j.0254-0096.tynxb.2024-1200

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (11) : 405-411. DOI: 10.19912/j.0254-0096.tynxb.2024-1200

菲涅尔聚光的太阳能脉动热管集热器性能实验研究

李晓琳, 吴海峰, 徐荣吉, 王瑞祥, 赵远强

作者信息 +

FRESNEL CONCENTRATED SOLAR PULSATING HEAT PIPE COLLECTOR EXPERIMENTAL STUDY OF PERFORMANCE

Li Xiaolin, Wu Haifeng, Xu Rongji, Wang Ruixiang, Zhao Yuanqiang

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文章历史 +

摘要

为提高建筑太阳能利用效率,提出一种基于菲涅尔聚光的太阳能脉动热管集热器,并以碳纳米管掺杂的金属纳米流体为传热介质,实验测试了该装置的运行性能。对比研究发现,掺杂后的金属纳米流体表现出较好的吸光特性,且浓度越大吸光性能越好;在测试时段,集热器蒸发段流体的最高集热温度为119.5 ℃,当浓度0.015‰时装置的平均光热转换率最高（69.4%）,比氢氟醚提高了48.5%;适当降低脉动热管的充液率有利于太阳能转化效率的提升。

Abstract

In order to improve the efficiency of solar energy utilization in buildings, a solar pulsating heat pipe collector based on Fresnel concentrator is proposed, and the operation performance of the device is experimentally tested by using carbon nanotube-doped metal nanofluid as the heat transfer medium. Comparative studies show that the doped metal nanofluids exhibit better light-absorbing properties, and the higher the concentration, the better the light-absorbing properties. During the test period, the maximum temperature in the evaporation section of the collector was 119.5 ℃, and the average photothermal conversion rate of the device was the highest （69.4%） when the concentration was 0.015‰, which was 48.5% higher than that of hydrofluoroether. Appropriately reducing the liquid filling ratio of pulsating heat pipes is conducive to the improvement of solar energy conversion efficiency.

导出引用

李晓琳, 吴海峰, 徐荣吉, 王瑞祥, 赵远强. 菲涅尔聚光的太阳能脉动热管集热器性能实验研究[J]. 太阳能学报. 2025, 46(11): 405-411 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1200

Li Xiaolin, Wu Haifeng, Xu Rongji, Wang Ruixiang, Zhao Yuanqiang. FRESNEL CONCENTRATED SOLAR PULSATING HEAT PIPE COLLECTOR EXPERIMENTAL STUDY OF PERFORMANCE[J]. Acta Energiae Solaris Sinica. 2025, 46(11): 405-411 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1200

中图分类号： TK513.1

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