Experimental Study on Performances of Heat Pump Water Heater Based on Heat Recovery of Domestic Wastewater

Abstract

In order to solve the present situation of unceasing demand for hot water and severe loss of quantity of heat from wastewater,a new type of heat pump water heater was developed based on heat recovery of domestic wastewater.In this paper,the relation curves of waste heat recovery of combined separate heat pipe evaporator,average heating capacity of heat pump,power of compressor,suction and discharge pressure of compressor,outlet temperature of hot water,and energy efficiency ratio of system are investigated ..