Design and CFD Simulation of Condensate Energy Recovery System for Multi-connected Air Conditioning
Intelligent control and energy recovery are effective ways to improve the efficiency of HVAC systems and reduce the energy consumption of refrigeration and heating.At present,the nearby or centralized discharge of air-conditioning condensate causes waste of water and cooling capacity.The condensate guide bin connector and the double-pipe heat exchanger are designed to realize the exchange of the condensate cooling capacity and the heat of the liquid refrigerant at the condenser side,so as to recover the condensate cooling capacity,increase the refrigerant supercooling and improve the efficiency of the refrigeration cycle.In this paper,the effects of refrigerant inlet temperature,condensate inlet temperature,refrigerant inlet mass flow and condensate inlet mass flow on the average temperature of refrigerant outlet,subcooling,wall heat flow,coefficient of performance and compressor power consumption are analyzed through the CFD simulations.The heat exchange law and optimal heat exchange conditions of the energy recovery device are proposed,which has strong theoretical guiding significance for engineering application.
万方数据
维普
