Trnsys simulation analysis of ground source heat pump refrigeration system
LIU Feng
DING Jinhong
LI Guanxin
Abstract：In view of the climate characteristics of high temperature and high humidity in Guangzhou,a refined dynamic coupling model of the ground source heat pump refrigeration system for an office building is constructed.By integrating the thermal parameters of the building envelope,hourly meteorological data and the dynamic characteristics of indoor loads,the Trnsys multi-physics field coupling solver is utilized to achieve the transient collaborative simulation of ground heat exchangers,heat pump units and air conditioning terminal systems.The results show that under the operating conditions of the typical cooling season,the average coefficient of performance(COP)of this system is 4.8,which is 28%higher than that of conventional air conditioning units.The total annual energy consumption for cooling is 55 817.3 kWh,which is 41 200 kWh more energy-efficient than the traditional air conditioning solution.This is equivalent to reducing the consumption of 34.5 tons of standard coal and the emission of 89.6 tCO2.
Keywords：Trnsys simulationground source heat pumpcoolingenergy-saving
Publication Date：2025-11-30
Online Publishing Date：2025-12-29(First online date of this platform, not the publication date of the document)
Pages：4( 11-14 )