Ground Source Heat Pump System Of Soil Cold Storage Research At Night In Hot Summer And Cold Winter Area

Ground source heat pump are widely used in hot summer and cold winter region because of stability and high efficiency. As our country is surging in the work of ground source heat pump application, some problems have appeared. From the point of view of system technology research and application promotion, energy-saving economic and efficient operation is the most important thing for a long time, and the soil heat balance is the guarantee of system continues to run efficiently and key. The building cooling load in summer and the heat load in winter is different in hot summer and cold winter region because of the climate. The soil throughout the year take the heat accumulated and heat emission varies greatly, causing the system to run Effectiveness decline, the impact of long-term safe and reliable operation.In this paper, considering the weather conditions of summer and cold winter areas, load factor performance of buildings, soil characteristics, use trnsys establish GSHP-cooling tower refrigeration storage model of the night, by verifying the measured data, the model was repeated commissioning, to obtain more reliable and accurate model. Take advantage DeST Gross annual hourly load, as a load-based simulation modeling. The simulation model to simulate different times, both in the short and long-term perspective of changes of system performance parameters. While the parameter value systems and conventional ground-source heat pump system and its complex system proposed operation were analyzed. Come night soil storage system is running a decade after the soil temperature field only increased by 0.8℃, and the system in the cooling period may be maintained at the efficient operation of state, to alleviate the problem of soil heat accumulation of great help.On the basis of the simulation results on several systems for energy economics and evaluation, analysis of energy consumption and operating costs the system is running a five-year comparison, the system has a good economy, energy efficiency, the actual project has guidance.