中文摘要：

针对目前节能空调器市场占有率低的问题，对我国主要城市住宅空调器寿命周期费用进行计算分析。结果表明：由于目前我国城镇住宅空调器平均能耗水平较低，而节能空调器的价格比普通空调器高50％以上，因此对于绝大多数住户，采用节能空调器可节省运行能耗，但并不省钱，这是造成我国节能空调器市场占有率低的重要原因．为此应制定相应的鼓励政策促进我国节能空调器的推广应用。

英文摘要：

This paper calculates and analyzes the life cycle costs of air conditioners in urban residential buildings in main cities of China, trying to explain why the residents do not like to buy efficient air conditioners. The research resuits show that it cannot save money for majority of residents to use efficient air conditioners though it can save a lot of the operating energy of air conditioners, because the average level of cooling energy consumption in urban residential buildings is low and the prices of high-efficiency air conditioners are significantly higher than that of low-efficiency air conditioners at present time. This is the most important reason why residents do not like to buy efficient air conditioners. So some policies should be laid down to encourage residents to use efficient air conditioners.