Heat collection through flat plate collector is a common technology in solar thermal utilization. In order to improve the heat collection efficiency of flat plate collector and determine the best inclination angle and glass plate thickness, this paper establishes a collector indoor experimental system, and completes the research of solar radiation intensity, collector inclination angle, mass flow rate and glass thickness on the heat collection performance of corrugated flat plate collector. The result shows that when radiation intensity is 510W/m², the temperature difference between the inlet and outlet in the radiation decreasing stage is 0.25 °C higher than the radiation increasing stage, and the heat collection in the radiation decreasing stage is 157.5W higher than the radiation increasing stage. The heat collection efficiency under different inclination angles decreases with the increase of radiation intensity, the best inclination angle of the collector is 45° and the maximum heat collection efficiency is 0.89. When the radiation intensity is more than 1000W/m², heat collection of flat plate collector with glass thickness of 8 mm is 6% higher than that with the thickness of 6 mm, insulating effect of the glass is more obvious. The optimum thickness of the glass plate is 4 mm, the maximum temperature difference is 1.5 °C and the maximum heat collection efficiency is 0.89. The heat collection efficiency at different mass flow rates increases first and then decreases with the increase of radiation intensity. The maximum value of the heat collection efficiency at low mass flow rate is delayed. When the mass flow rate is 0.15 kg/s, 0.13 kg/s and 0.1 kg/s, the maximum heat collection efficiency is 0.89, 0.86 and 0.73, respectively; and the corresponding radiation intensity are 670W/m², 850W/m² and 1000W/m², respectively.

通过平板集热器集热是太阳能热利用中的一项常见技术。为了提高平板集热器的集热效率，确定最佳倾角和玻璃板厚度，本文建立了集热器室内实验系统，完成了太阳辐射强度、集热器倾角、质量流量和玻璃板厚度的研究。厚度对波纹平板集热器集热性能的影响。结果表明，当辐射强度为510W/m ²，辐射减弱阶段进出口温差比辐射增强阶段高0.25℃，辐射减弱阶段集热比辐射增强阶段高157.5W。不同倾角下的集热效率随着辐射强度的增加而降低，集热器最佳倾角为45°，最大集热效率为0.89。辐射强度大于1000W/m ^{2 时}，玻璃厚度为8mm的平板集热器的集热率比厚度为6mm的平板集热器高6%，玻璃的隔热效果更明显。玻璃板最佳厚度为4mm，最大温差为1.5℃，最大集热效率为0.89。不同质量流量下的集热效率随着辐射强度的增加先增大后减小。低质量流量下的集热效率的最大值延迟。当质量流量为0.15 kg/s、0.13 kg/s和0.1 kg/s时，最大集热效率分别为0.89、0.86和0.73；对应的辐射强度分别为670W/m ²、850W/m ²和1000W/m ²。