空气源热泵系统最低工作温度的研究
Lowest work temperature of air source heat pump systems
摘要：
空气源热泵机组供热存在一个最低工作温度，在分析热泵的核心部件压缩机的热力学性能基础上，得出了压缩机适合的最低工作温度，并利用COP随蒸发温度变化的规律和北京地区的Bin参数，建立了以经济性为目标函数的最低工作温度数学模型，同时进行了求解分析。
关键词：空气源热泵 COP Bin参数 最低工作温度
Abstract：
There is a suitable lowest work temperature for air source heat pumps in winter. According to the thermodynamic analysis on the compressor of the heat pump system, obtains the suitable lowest work temperature for the compressor. By use of the variation law of COP with the evaporating temperature and the Bin parameters in Beijing region, develops a mathematic model of the lowest work temperature considering economical efficiency as objective function, and discusses the solution for this model.
Keywords:air source heat pump, COP, Bin parameter, the lowest work temperature