Abstract
In this study, a hybrid ground-source heat pump (GSHP) system with surface water heat exchangers is employed in an exhibition building in Shanghai to provide with high-efficiency energy for space cooling and heating and also solve the problem of thermal imbalance of the soil because of a significant imbalance between the annual heat rejection to the ground and the annual heat extraction from the ground. The operation strategies were put forward based on the annual building hourly load to make the hybrid GSHP system in a high-efficiency status during the long-term operation. The results show that the hybrid GSHP system can effectively solve the heat accumulation problem and decrease in system performance for the ten-year long run.
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