【摘要】 该文采用分布参数法,从制冷工质动力学原理出发,根据平衡均相流理论,建立了光伏太阳能热泵光伏蒸发器的稳态分布参数模型。通过数值模拟对光伏蒸发器在给定的太阳辐照强度、环境温度以及制冷工质不同的进口流速下,工质的平均比焓、空隙率、干度、温度、压力等参数沿制冷管道的分布、蒸发器的温度和光伏电池发电效率的二维分布等进行研究。了解这些参数的分布情况对研究光伏蒸发器的光电、光热性能具有十分重要的意义,可作为蒸发器结构以及系统设计的依据,为系统的优化奠定了一定的理论基础。更多还原

【Abstract】 According to the theory of homogeneous flow and thermodynamics of refrigeration system,this paper presents a steady and distributed model for the PV evaporator in a PV solar assisted heat pump system.The numerical simulation with various inlet velocity and the solar radiation and ambient temperature conditions has been done.The results of the simulation given that the distribution of enthalpy,void fraction,vapor quality,temperature,pressure and velocity of the refrigerant with pipe length.Two-dimensional distribution of the evaporator temperature and PV efficiency were also giv- en.All these parameters are important for studying the performance of photovoltaic and photo-thermal of PV evaporator and optimization of the heat pump system.更多还原