An Analysis of Solar Heating System Assisted by Ground-source Heat Pumps in Office Building

摘要

Space heating accounts for large percentage of building energy consumption,which is the main inducement of air pollution deterioration in cold climate area.Solar energy systems and ground-source heat pumps are two promising means of reducing the consumption of fossil energy resources and green house gas emission.Taking a typical office building in the port of Tianjin as an example,the simulation of solar heating system assisted by ground-source heat pumps was studied.The entire system was then modelled via the TRNSYS simulation environment and the energy performance was evaluated based on the winter time operation schedule.The simulation results show that the overall system COP can reach 8.17 and the heat pump COP is also increased.