Abstract

AbstractThe imbalance of heat absorption and release of geothermal heat exchanger is common in ground source heat pump air conditioning system. For example, for the cold areas in the north, the heat extracted from the earth by the geothermal heat exchanger in winter is much greater than that released to the earth in summer, while the south is on the contrary. The change of underground temperature field will reduce the performance of ground source heat pump system. Composite low temperature source ground source heat pump system, as an effective method to solve the cold heat imbalance, has attracted more and more attention. In order to apply this technology scientifically, effectively and reliably, it is necessary to conduct a comprehensive and in-depth research on the system.KeywordsSolar energyGround source heat pumpEnergy storageAir conditioning system

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