Research Progress on Hybrid Gas-Electric Heat Pump Systems
With the proposal of the dual carbon goal,the low-carbon transformation of the heating sys-tem has become a research hotspot.The relevant re-search on two types of gas-electric hybrid heat pump systems at home and abroad,namely hybrid heat pump-gas boiler system and hybrid power-gas engine heat pump system is analyzed and summarized.The gas-e-lectric hybrid heat pump systems are superior to single electric heat pump or gas boiler in terms of energy effi-ciency,carbon emissions and operating.costs.The hy-brid heat pump-gas boiler system has good energy effi-ciency and economy.Due to the increase in initial in-vestment costs and control system costs,as well as ma-intenance costs,the economy of hybrid heat pump-gas boiler system decreases,reducing the attractiveness of consumption.China has enormous potential in the heat pump market,and combined with the climatic charac-teristics of northern China,the hybrid heat pump-gas boiler system is expected to become an effective solu-tion for the low-carbon transformation of the heating system.The hybrid power-gas engine heat pump sys-tem can effectively save energy,but it is difficult to commercialize due to the high complexity of mechanical coupling,complex control strategy,and great influence of climate on the energy efficiency of the system.
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