交叉V形吸热板V形底板空气集热器性能特性研究  

Study On the Performance of Solar Air Collectors with Cross V-Shaped Absorbing Plate and V-Shaped Bottom Plate

作　　者：闫崇强[1] 李明[1] 季旭[1] 罗熙[1] 

机构地区：[1]云南师范大学太阳能研究所,昆明650092

出　　处：《西南大学学报（自然科学版）》2013年第7期162-167,共6页Journal of Southwest University(Natural Science Edition)

基　　金：云南省联合基金重点项目(U1137605);国家自然科学基金资助项目(51106134;50966004);教育部长江学者创新团队项目(20095303110001)

摘　　要：以两种不同的交叉V形吸热板V形底板空气集热器(垂直型集热器:V形吸热板的方向与流道方向垂直,V形底板的方向与流道方向平行;平行型集热器:V形吸热板的方向与流道方向平行,V形底板的方向与流道方向垂直)为研究对象,对不同倾角、不同空气流速下两种空气集热器的性能进行了比较实验研究,同时对正向和反向通气时垂直型空气集热器的性能进行了测试分析.结果表明:垂直型空气集热器的性能优于平行型空气集热器,45°倾角时两台集热器的温升最高;垂直型和平行型空气集热器的最大效率分别为71%,68%;垂直型空气集热器反向流动时比正向流动时性能更好.Two different types of solar air collectors with cross V-shaped absorbing plate and V-shaped bottom plate（for the vertical type collector,the direction of the V-shaped bottom plate is parallel to the flow direction while the direction of the V-shaped absorbing plate is perpendicular to it;for the parallel type collector,the direction of the V-shaped absorbing plate is parallel to the flow direction while the direction of the V-shaped bottom plate is perpendicular to it） are used as the research object in this paper,and their performances are studied and compared under different dip angle and different air flow velocity;meanwhile,the performance of the vertical type air collector is tested and analysed under forward and reverse entilation.The results show that the performance of the vertical type air collector is better than that of the parallel type air collector,and the rise of temperature of both collectors is the highest with an angle of 45°.The maximum efficiency of the vertical and the parallel type is 71% and 68%,respectively.With a reverse flow,the performance of the vertical type air collector is better than with a forward flow.

关 键 词：空气集热器 温度分布 空气流速 倾角 

分 类 号：TK519[动力工程及工程热物理—热能工程]