Abstract
Based on the study of groundwater source heat pump air conditioning system, the thermodynamic characteristics of the water source heat pump system are analyzed in detail. This paper analyzes the energy saving optimization of a new type of underground water source heat pump system, making the groundwater source heat pump system more efficient and energy saving. Based on the theory of thermal economics and quantitative analysis, five independent variables are selected as the variable parameters of the thermal economic analysis after designing the objective optimization function. The exergy efficiency under several variable values are discussed, and then a comparative analysis is carried out. Finally, the parameters of the traditional water source heat pump and the optimized new water source heat pump are compared through the experiment. We found that the compressor power consumption of traditional underground water source heat pump system is greater than that of the new underground water source heat pump system. The exergy efficiency of the new underground water source heat pump system is high and the annual total cost is low. So the water source heat pump system has higher exergy efficiency, better economic and better exergy efficiency after optimization design.
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