冬季日光温室外MHP-PV/T遮阴性能研究  

Study on Shading Performance of MHP-PV/T Outside Solar Greenhouse in Winter

作　　者：李金平 韩肖星[1,2,3] 刘孝敏 魏世范 Vojislav Novakovic LI Jinping;HAN Xiaoxing;LIU Xiaomin;WEI Shifan;Vojislav Novakovic(Key Laboratory of Biomass and Solar Energy Complementary Power Supply System in Gansu Province,Lanzhou 730050,China;Collaborative Innovation Center for Supporting Technology of Northwest Low-Carbon Towns,Lanzhou 730050,China;School of Energy and Power Engineering,Lanzhou University of Technology,Lanzhou 730050,China;Department of Energy and Process Engineering,Norwegian University of Science and Technology,Trondheim NO-7491,Norway)

机构地区：[1]甘肃省生物质能与太阳能互补供能系统重点实验室,甘肃兰州730050 [2]西北低碳城镇支撑技术协同创新中心,甘肃兰州730050 [3]兰州理工大学能源与动力工程学院,甘肃兰州730050 [4]挪威科技大学能源与过程工程系,挪威特隆赫姆,NO-7491

出　　处：《甘肃科学学报》2022年第6期108-115,共8页Journal of Gansu Sciences

基　　金：国家自然科学基金项目(51676094);国家重点研发计划项目(2019YFE0104900);甘肃省高等学校产业支撑引导项目(2019C-13)。

摘　　要：针对冬季日光温室通风口降温热量损失大的问题,提出了PV/T遮阴降温的设想,并在兰州某地日光温室外搭建了MHP-PV/T试验系统,详细分析了冬至前后三天日光温室外45°安装倾角时MHP-PV/T系统的光电性能、光热性能和综合性能。研究结果表明:三天内MHP-PV/T系统平均光电效率约为0.083,光电功率约为83.9 W,光热效率为0.161,光热功率约为119.3 W,总能功率约为203.3 W,总能效率约为0.379,累积总能收益约为1.42 kW·h。研究结果证明了MHP-PV/T装置用于寒冷地区冬季日光温室遮阴降温的可行性,为寒冷地区冬季日光温室遮阴降温提供了一种新途径。Aiming at the problem of large heat loss in cooling the vents of the solar greenhouse in winter, the idea of PV/T(Photovoltaic/Thermal) shading and cooling was proposed, and set up MHP-PV/T(Micro Heat pipe Photovoltaic/Thermal) test system outside the solar greenhouse in Lanzhou.Detaily analyzed the photovoltaic performance, photothermal performance and comprehensive performance of the MHP-PV/T system when the inclination angle of the MHP-PV/T system is installed at 45° outside the solar greenhouse for 3 days before and after the winter solstice.The research results show that the average photoelectric efficiency of the MHP-PV/T system is about 0.083,the photoelectric power is about 83.9 W,the photothermal efficiency is 0.161,the photothermal power is about 119.3 W,the total energy power is about 203.3 W,and the total energy efficiency is about 0.379 within three days.The cumulative total energy income is about 1.42 kW·h;The research results prove the feasibility of using the MHP-PV/T device for shading and cooling of solar greenhouses in cold regions in winter, and provide a new way for solar greenhouses in cold regions to shading and cooling in winter.

关 键 词：MHP-PV/T 光热效率 光电效率 总能功率 总能效率 

分 类 号：TK519[动力工程及工程热物理—热能工程]