开孔参数对渗透型太阳能集热器性能影响数值模拟研究

谢士兴; 胡建军

doi:10.19912/j.0254-0096.tynxb.2024-0441

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (7) : 758-765. DOI: 10.19912/j.0254-0096.tynxb.2024-0441

第二十七届中国科协年会学术论文

开孔参数对渗透型太阳能集热器性能影响数值模拟研究

谢士兴^1,2, 胡建军^1,2

作者信息 +

NUMERICAL SIMULATION OF EFFECT OF OPENING PARAMETERS ON UNGLAZED TRANSPIRED SOLAR AIR COLLECTOR

Xie Shixing^1,2, Hu Jianjun^1,2

Author information +

文章历史 +

摘要

基于射流冲击强化换热原理,设计一种超薄渗透型太阳能空气集热器,采用数值模拟的方法研究不同孔径和孔间距下集热器内部流场分布和集热效率。结果表明,孔分布不仅会影响集热器内微射流和横流主流交汇的流动特征,也决定内部温度分布的均匀性。同时孔径和间距对集热器热性能存在交互影响,当孔径为1 mm和间距为10 mm时,集热效率为89.20%,热工水力性能参数为15.6,综合性能最优。该集热器可替代建筑外立面装饰层,实现建筑保温与隔热,也为分布式太阳能农业干燥提供了新思路。

Abstract

The design of an ultra-thin permeable solar air collector is based on the principle of enhanced heat transfer through jet impingement. The flow field distribution and thermal efficiency of the collector are investigated through numerical simulation under various aperture sizes and hole spacings. The findings demonstrate that the hole distribution significantly not only influences the flow characteristics at the intersection of microjet and cross-flow mainstream in the collector, but also determines the uniformity of internal temperature distribution and heat collection efficiency. The thermal performance of the collector is influenced by both the aperture and the spacing, which exhibit interactive effects. When the aperture is 1 mm and the spacing is 10 mm, the heat collection efficiency is 89.20%, the thermal hydraulic performance parameter is 15.6, and the comprehensive performance is the best. The collector can replace the decorative layer of the building facade, realize the building thermal insulation and heat insulation, and also provide a novel approach for distributed solar agricultural drying.

导出引用

谢士兴, 胡建军. 开孔参数对渗透型太阳能集热器性能影响数值模拟研究[J]. 太阳能学报. 2025, 46(7): 758-765 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0441

Xie Shixing, Hu Jianjun. NUMERICAL SIMULATION OF EFFECT OF OPENING PARAMETERS ON UNGLAZED TRANSPIRED SOLAR AIR COLLECTOR[J]. Acta Energiae Solaris Sinica. 2025, 46(7): 758-765 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0441

中图分类号： TK513

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