Study on Operation Scheme Optimization of Compound Ground Source Heat Pump System in Severe Cold Area

Abstract

Abstract Aiming at the imbalance of soil heat caused by the application of Ground Source Heat Pump System in severe cold areas, the energy supply performance of the system under the control of conventional operation scheme and multi-mode switching scheme was simulated by using TRMSYS system simulation software. The results show that the CGSHPS has good energy supply performance under the control of multi-mode operation scheme; Under the multi-mode switching operation scheme, the total heat extraction of the heat exchanger in the whole year is less than the heat storage, the energy consumption of the unit is less, and the soil temperature increases by 0.09°C after the periodic operation of the system.