Application Research Of Gas Engine Driven Heat Pumps In China

Environment protection becoming a focus in big cities, to meet the energy needs mainly by clean energy products is a prevailing trend. To promote energy conservation, heating system and charge policy is facing great reform. Air-conditioner becoming necessity, the city electricity supply systems are confronted by peak load.Natural gas application is widely concerned, this paper holds that GHP(Gas engine driven heat pump) is a wonderful choice.Based on the country reality of diverse energy resources, this paper discusses the load allocation problem of electricity and natural gas in city energy supply. Holds that the main task of natural gas entering cities is to relieve environment pollution status, the "Thermal-related energy needs" should be satisfied by gas. Two concepts were defined, one is "electricity generation cost coefficient" the other is "equivalent pollution coefficient".Introduced the system components, cycle principle, working characters and waste heat recovery method. Established the mathematic mode and got heat pump parameters regulating law through computer programmes. Got application results in Beijing, shenyang, shanghai, Wuhan, by simulation software.Analyses the elements effecting GHP system economy status, holds that the gas supply in different season should be regulated by seasonal prices. Calculated the acceptable initial cost of GHP system by payback period.This paper concludes that GHP has wonderful technology advantages. Proper policy regulation will help its contribution to gas application and environment protection.