天然气热泵组合在供暖空调中的应用
Application of combination of natural gas and heat pump to heating and air conditioning
摘要：
总结了几种天然气热泵组合运行方式，分析了各种方式的优缺点，并推导了相应的效能计算公式。比较了各种方式的运行费用，认为天然气热泵组合方式在供暖空调中很有发展潜力。
关键词：天然气 热泵 供暖 空调
Abstract：
Sums up some kinds of combined operating modes of natural gas and heat pumps. Points out the merits and demerits for each mode and deduces the efficiency formulations of them. Compares the operating costs and considers that the combined operating mode has much development potential in heating and air conditioning.
Keywords:natural gas， heat pump， heating， air conditioning