地源热泵运行经济性分析

根据北方寒冷地区冬天室外温度偏低的特点，提出利用地源热泵供暖。地源热泵存在三种驱动方式：电动机、柴油机、燃气机。三种辅助供暖热源：电锅炉、燃油锅炉、燃气锅炉。本文对其一次能源利用率和燃料价格变动时，系统运行经济性进行比较分析，得出燃气热泵的供暖费用比锅炉房集中供热的费用要高6％；电动热泵的供暖费用比锅炉房集中供热费高40％；柴油机热泵的供暖费用比锅炉房集中供暖高出57％。

An Analysis of the Operating Cost-effectiveness of a Ground-source Heat Pump

In the light of the excessively low outdoor temperatures prevailing in Chinese northern frigid regions the authors have proposed a space heating system based on the use of ground source heat pumps. There exist three driving modes for such pumps, namely, by electric motors, diesels and gas engines. In addition, there are three auxiliary heat supply sources, i.e., electric boilers, oil fired ones and gas fired ones. The authors have analyzed and compared the operating cost of various systems during a change of primary energy utilization rate and fuel price. The results of this comparison show that the operating cost of the driving modes by using gas engines, electric motors and diesel engines are respectively 6%, 40% and 57% higher than that of a central district heating system using boilers.