【摘要】 绿化屋顶(GR)和光伏发电系统(PV)在调节室内热湿环境与降低建筑能耗中发挥着重要作用，利用两系统互效性耦合而成的光伏-绿化屋顶(PV-green Roofs)是推进建筑节能的创新型举措。结合PV-green Roofs数学模型，分析植物高度对系统性能的影响，通过实验测定，以落地生根和佛甲草为绿化屋顶植被层材料，实测不同工况下PV-green Roofs系统的电量输出值，同时结合EnergyPlus数值模拟结果分析采用不同植株高度的PV-green Roofs系统对建筑消耗净能量的影响。结果表明：植物高度通过改变绿化屋顶种植层蒸发阻力和植被层冠状层风速影响系统性能；在夏热冬冷的气候条件下，植物生命中期对应的高度对光伏系统工作环境的冷却效果最为明显，引起输出电量的增值最大，且环境湿度对系统性能存在影响。更多还原

【Abstract】 Green roofs and photovoltaic power generation system play an important role in regulating indoor heat and humidity environment and reducing building energy consumption. The PV-green roofs, which is a dual-effect coupling of the two systems, is an innovative measure to promote building energy conservation. Combined with the PV green roofs theoretical model, the influence of plant height on the system performance is analyzed. Through the experimental measurement, the electricity output value of PV green roofs system under different working conditions is measured by taking the Bryophyllum pinnatum and Sedum as the green roofs materials. Meanwhile, the influence of PV-green roofs with different plant height on the net energy consumption of buildings is analyzed combined with the numerical simulation results by using EnergyPlus. The results show that the plant height affects the performance of the system by changing the evaporation resistance of the green roofs and the coronal wind speed; In the hot summer and warm winter climate, the height corresponding to the middle life of the plants has the most obvious effect on the cooling effect of the working environment of the photovoltaic system, resulting in the largest increment of output power, and the environmental humidity has a strong impact on the performance of the system.更多还原