This study aimed to establish an experimental system to strengthen the popularization of flat-plate solar air collectors. Flat-plate solar collectors have been studied for years, but economic researches based on energy grade are insufficient. Using the analogical principle of fan, the relationship between the air mass flow rate and the power consumption of a fan was built. Taking net heat production and economy as the criteria, the influence of air mass flow rate on the collector system was studied. The relative coefficient of the energy grade, which can provide a balance point between the power and the heat for the net production analysis of the system, was defined. The heat production benefits and the power consumption costs were used to evaluate the experimental system using four cities as examples. On the basis of this evaluation method, the impact of energy grade on the economics of the system was studied.

这项研究旨在建立一个实验系统，以加强平板太阳能集热器的普及。平板太阳能集热器已经研究了多年，但是基于能量等级的经济研究还不够。利用风扇的类比原理，建立了空气质量流量与风扇功耗之间的关系。以净热量生产和经济性为标准，研究了空气质量流量对集热系统的影响。定义了能量等级的相对系数，该系数可以为系统的净产量分析提供功率和热量之间的平衡点。以四个城市为例，以供热效益和功耗成本评估了实验系统。根据这种评估方法，