Paper Conference

Proceedings of ASim Conference 2016: 3rd Asia conference of IBPSA-China, Japan, Korea


Anti-freeze and Energy-saving Control Method of Ground Source Heat Pump System

Y. Deng, D. Sumiyoshi, J. Oh, S. Takasugi, M. Tateno

Abstract: In cold areas, it is common to use antifreeze as heat source water in ground source heat pump systems to prevent freezing. However, concerned that the environment will be polluted if antifreeze leaks, we utilize water as heat source water in this study. The purpose of this research is to develop the antifreeze and energy-saving control method for heat source water. The parameters of the simulation model are altered in the case study. As a result, raising the threshold temperature of confluence water will reduce the risk of freezing, but the amount of heat processed by the water source heat pumps will decrease because of the maximum capacity control. In addition, the power consumption of the system declines as the threshold water temperature difference between the inlet and outlet of the water source heat pumps increases.
Keywords: GSHPS, Simulation, Energy conservation, Anti-freeze control