可再生能源2026，Vol.44Issue(5)：597-607,11.
导流板对穿孔式太阳能空气集热器性能的影响
Effect of deflectors on the performance of perforated solar air heaters
摘要
Abstract
In order to study the influence of perforated heat absorber plate and guide plate on heat transfer performance of solar air collector in single channel structure,a heat transfer enhancement structure with guide plate under the opening of heat absorber plate is designed in this paper.The effects of the height of the guide plate under the heat absorber plate,the opening ratio of the guide plate,the transverse arrangement spacing,the longitudinal arrangement spacing and the transverse and longitudinal ratio of the perforation on the heat transfer and flow characteristics of the collector are numerically analyzed.The optimal structural parameters of the comprehensive heat transfer coefficient were obtained by single factor analysis(h=1.0 mm,g=0.50,X/D=3.25,Y/D=2.60,e2/e1=0.32).In the flow range studied,the average Nusselt number on the surface of the heat absorbing plate with the optimal structure is 37.6％higher than that without the deflector structure,the friction coefficient is increased by 31.6％,and the average comprehensive heat transfer coefficient is increased by 20.3％.The maximum heat collection efficiency and effective efficiency are 80.1％and 75.6％,respectively,which are 6.8％and 51.3％higher than those of the solar air collector with perforated plate structure in the literature.Therefore,the installation of the guide plate on the perforated heat absorbing plate can effectively improve the comprehensive performance of the solar air collector.关键词
太阳能空气集热器/穿孔吸热板/导流板/综合传热系数/数值分析Key words
solar air collector/perforated heat absorbing plate/guide plate/comprehensive heat transfer coefficient/numerical analysis分类
能源科技引用本文复制引用
萧清旭,王亚刚,王烨,张伟见..导流板对穿孔式太阳能空气集热器性能的影响[J].可再生能源,2026,44(5):597-607,11.基金项目
国家自然科学基金(51476073) （51476073）
甘肃省太阳能利用重点实验室开放课题(GSKLSEU2025-ZD04) （GSKLSEU2025-ZD04）
甘肃省自然科学基金(21JR7RA304) （21JR7RA304）
兰州交通大学基础研究拔尖人才计划(2022JC48) （2022JC48）
甘肃省高等学校产业支撑计划项目(2023CYZC-38). （2023CYZC-38）
