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本文以壁挂式太阳能空气集热器(Wall-mounted Solar Air Collector,WSAC)为研究对象,采用现场实测和理论分析的方法,通过研究太阳辐射照度、送风量与WSAC瞬时效率以及纯效率的关联性,提出了综合考虑建筑能耗时变风量工况下提高WSAC运行效率的途径。而后,利用实体大实验房,分别采用连续定风量送风、变风量送风以及间歇定风量送风的运行方式,对WSAC热性能及节能效果进行了实验研究。结果表明,在考虑WSAC纯效率的情况下,变风量送风的运行效率优于其它送风方式,相对连续定风量送风节能63%,同时还得到了随着太阳辐射照度变化的最佳控制运行模式。
In this paper, the Wall-mounted Solar Air Collector (WSAC) is taken as the research object. By means of field measurement and theoretical analysis, the relationship between solar radiation irradiance, air supply volume and WSAC instantaneous efficiency and pure efficiency In this paper, the ways to improve WSAC operating efficiency under the condition of variable air volume of building energy consumption are put forward. Then, using the real laboratory, the operation modes of continuous air supply, variable air supply and intermittent air supply are respectively adopted to conduct the experimental research on the thermal performance and energy saving effect of WSAC. The results show that, considering the pure efficiency of WSAC, the operating efficiency of variable air volume blowing is better than other air blowing modes, and the relative continuous constant air volume is 63%, and the optimal control Operating mode.