多孔体太阳空气集热供暖系统热性能实验研究  

EXPERIMENTAL STUDY ON THERMAL PERFORMANCE OF HEATING SYSTEMS USING PERFORATED-ABSORBER SOLAR AIR COLLECTOR

作　　者：高林朝[1,2] 沈胜强[2] 郝庆英[1] 李士瑄 肖菊[1] 

机构地区：[1]河南省科学院能源研究所有限公司,郑州450008 [2]大连理工大学能源与动力学院,大连116024 [3]汝州市住房和城乡建设局,汝州467500

出　　处：《太阳能学报》2012年第8期1419-1424,共6页Acta Energiae Solaris Sinica

基　　金：河南省科技攻关项目(9412009Y0008)

摘　　要：设计一种多孔体型太阳空气集热器建筑供暖系统。实验研究不同孔径集热板形式和空气循环流动方式对建筑供暖系统热性能及其室内热环境的影响。实测结果表明,集热器进、出风口空气平均温差达24.0℃以上;强制循环方式下孔径1.6mm、孔间距12mm的集热板较孔径5.0mm、孔间距25mm的集热板中心点和出风口温度高6.0℃和4.7℃,集热效率仅相差0.045～0.060;增大孔径对提高集热效率作用不明显;单台1.85m2集热面积晴好天气可使实验房白天室内温度较对比房高约7.0℃,可满足冬季室内温度要求。A heating system of the perforated-absorber solar air collector integrated with buildings was designed. Experimental study on effect of pore size of the perforated-absorber collector, air circulating mode and mass flow rate within collector on thermal performance and indoor thermal environment was carried out. The results showed that the air temperature difference of collector at the air inlet/outlet can reach to 24.0℃ ; Under forced convection, the middle and outlet air temperature of perforated-absorber collector with small pore size （ diameter 1.6ram, hole spacing 12mm） are 6.0℃ and 4.7℃ higher than those with large pore size （diameter 5.0mm, hole spacing 25 mm） , the average heat collecting efficiency is only difference from 0. 045 to 0. 060 ; The improvement of thermal performance is not obvious by increasing pore size; In addition, the average indoor temperature of the tested room with 1.85m2 collector is about 7.0℃ higher than that of the reference room. In the sunny daytime, the heating system can basically meet the requirements for indoor temperature in winter.

关 键 词：太阳空气集热器 供暖系统 热性能 多孔体吸热板 

分 类 号：TK511.3[动力工程及工程热物理—热能工程]