热泵系统输送能耗比例及系统优化

Transportation energy consumption ratio and system optimization of heat pump system

中文关键词: 热泵系统  输送能耗  输送距离  经济比摩阻

英文关键词: heat pump system  transportation energy consumption  transmission distance  economical specific frictional resistance

中文摘要:

      摘 要：利用热泵技术为建筑物供暖制冷，具有巨大的经济与环保效益。为了降低热泵系统输送能耗，建立了输送距离界限模型和输送能耗比例模型。综合考虑系统的运行费与初投资，在管材价格、安装价格一定的条件下，对传统比摩阻计算式进行了经济优化，得到了适用于热泵系统的经济比摩阻范围（40~80Pa/m），该值较传统经济比摩阻取值偏小，以此经济比摩阻可确定水源输送距离界限（1200~2500m），并据此指导输配管网设计,以降低和控制热泵系统输送能耗比例(10%~20%)。

英文摘要:

      Abstract: Heat pump technology is used for heating and cooling for buildings, which can bring great benefits to economy and environment protection. In order to reduce transportation energy consumption of heat pump system,transportation energy consumption proportion model(TECPM)and transmission distance boundary model(TDBM)were established. The conventional specific frictional resistance(SFR) was optimized through taking into account the effect of running cost and initial investment with constant pipe and installation costs. A range of specific frictional resistance (40-80Pa/m) ,which is suitable for heat pump system, were obtained. The results show that the values are smaller than the conventional economical specific frictional resistance.These can be used to calculate the transmission distance boundary(1200-2500m) and guide design of pipe networks in order to reduce and control water pump energy consumption ratios(10%-20%).