Operating Modes of the Solar Assisted Drainwater System for Ground Source Heat Pump

摘要

To extend the area in applications of solar heat pump and drainwater heat recovery, the gravity film exchanger was employed to establish the solar assisted drainwater heat pump system. In this paper, two gravity film exchangers were assembled in the hybrid heat pump system to discuss the effect of water distribution ratio in two exchangers on the electric power complement and outlet water temperature of the condenser. The technology of Matlab/Simulink was used in modeling and simulations of the system by the performance curves and performance parameters of the corresponding system components. In the designing processes, the dynamic characteristics can be predicted, and the optimal operating conditions can also be concluded that appropriate water distribution ratio should be selected respectively for higher outlet temperature of the condenser or lower electric power complement.