The design heating and cooling load and hourly dynamic load in Machikou,Changping district,Beijing are simulated.Considering the energy condition of the project and building load characteristics,a composite energy system with ground-coupled heat pump system as the main heat source and air source heat pump and solar hot water system as auxiliary heat source is designed.Through the simulation of TRNSYS,the heat balance when ground-coupled heat pump system providing 75%heating load is analyzed.Then it is verified that the underground temperature is maintained within a certain range after using solar hot water system to supplement the heat source of the ground-coupled system to ensure the safe,stable and efficient operation of the system.Through the analysis of the energy saving benefit of the system,the energy saving and carbon reduction benefits of the composite energy system are tested,which provides reference for the same type of projects in cold regions.Through the analysis of the energy saving benefit of the system,the energy saving and carbon reduction effects of the composite energy system is verified,which provides reference for the same type of projects in the cold region.
ground-coupled heat pumpburied pipeheat balancegeotechnical thermal response test
NETL
NSTL
万方数据
