The Study Of Hybrid Ground Source Heat Pump System Operating Optimization Simulation In Wuhan

Solar heating water and ground-source heat pump are renewable energy utilization technology,and have great energy saving potential.At home and abroad,the technology has already widely used,whether using solar energy alone,soil heat,or combined use.However,this technology influenced by local geological conditions,climate characteristics,technical conditions,building envelope,and the influence of such factors in the process of practical application also needs to adjust measures to local conditions,make a corresponding adjustment,It requires scholars do more detailed research.In this paper,with the help of transient system simulation program Trnsys,the combining operation of solar water heating system and ground-source heat pump air conditioning system was simulated in Wuhan area.It could provide a reference for practical engineering application.In this paper,the Dest simulation software is used for modeling the building,simulating The annual dynamically cooling and heating load of the building.Considering the climatic conditions in Wuhan,building load characteristics,and the special factors such as routine of students' dormitory are obtained for the dormitory annual dynamic thermal load data.According to the solar energy parameters of Wuhan and the number of students' dormitory calculated solar collector area,the capacity of water tank.From the data source of annual dynamic thermal load of the building,we get buried pipe length,and heat pump model through calculation.We build Trnsys model system to simulate the operation.The buried pipe parameters model select the ground source heat pump laboratory buried pipe parameters of Wuhan University of science and technology.There are two small simulation system,solar water heating system and ground source heat pump system,in winter,solar energy cannot be provided with hot water fit the temperature,the heat pump units could supply heat to water tank,and ensure the hot water system can provide with the temperature of hot water.The temperature change of water tank and underground temperature field are simulated and analyzed.