Simulation and study on the coupled system of both the ground source heat pump and the cooling tower
LI Yan
ZHANG Wenke
ZHANG Shanshan
ZHU Xiuli
Abstract：In buildings with a dominant cooling load,the long-term operation of a single ground source heat pump system can lead to soil heat accumulation and a decline in system performance.Taking a certain high-speed railway station in Jinan City as the research object,the hourly load of the building throughout the year is simulated and calculated.The simulation models of the single ground source heat pump system and the ground source heat pump-cooling tower coupling system are established to compare the differences between the two in terms of unit performance,energy consumption,economy and environmental protection.The results show that the ground source heat pump-cooling tower coupling system effectively reduces the imbalance rate of soil cold and heat,solves the problem of soil temperature field imbalance,and its energy consumption is significantly reduced.Moreover,by reducing the number of boreholes and buried pipes,the initial investment of the system is lowered.In terms of environmental protection,compared with a single ground source heat pump system,the coupled system significantly reduces the emissions of CO2,SO2,NOx and smoke dust after 10 a of operation,which has a positive effect on improving air quality and reducing greenhouse gas emissions.
Keywords：ground source heat pumpcooling towercoupled systemsoil thermal accumulationenergy-saving
Publication Date：2025-08-30
Online Publishing Date：2025-10-22(First online date of this platform, not the publication date of the document)
Pages：7( 51-57 )