建筑太阳能光电热一体化系统的瞬态性能模拟

摘要

The software TRNSYS is used to simulate and analyze transient working situations of the building roof integrated photovoltaic/thermal(PV/T)solar energy system which is designed to provide power and hot water simultaneously. Thought series of tests in summer,instantaneous power output,cumulative capacity,transient in/out water temperature of PV/T module and flat plate solar collector,cumulative effective heat gain of PV/T module and flat plate solar energy collector in a given period,efficiency of photovoltaic and photothermal transfer and comprehensive solar energy utilization efficiency of system are recorded. Consequences manifest solar energy PV/T integrated system on the roof is an appropriate type for solar energy use of buildings in summer in Chongqing area where is usually thought no valuable possibility to use solar.%　　利用TRNSYS软件对重庆夏季建筑屋顶太阳能光电热一体化系统进行瞬态模拟分析计算，得到系统瞬时发电量与一段时间内累计发电量，光电热模块瞬时进出水温度与太阳能平板集热器瞬时进出水温度，系统一段时间内光电热模块累计有效得热量与一段时间内太阳能平板集热器累计有效得热量，系统的光电转换效率、光热转换效率以及太阳能综合利用效率。结果表明，建筑屋顶太阳能光电热一体化系统是重庆地区建筑太阳能光电热一体化系统适宜的型式。