Application performance analysis of refrigerant in closed heat pump drying system
The system performance of two different closed heat pump drying systems using R22,R134a,R245fa,R1224yd(Z),R1234ze(E)as refrigerants is analyzed.By ana-lyzing the influence of condensation temperature,evaporation temperature,by-pass rate,drying chamber air inlet temperature,drying chamber air inlet relative humidity on dehu-midification energy consumption(SMER)and performance coefficient(COP)of the two systems by using EES software,it is concluded that the two systems have the best per-formance when using working medium R245fa.The performance of the system can be in-creased by using belt replenishment gas.
closed heat pump drying systemworking fluidsystem performance pa-rameterdehumidification energy consumption