Hi,

I'm developing a model of a vapor compression system that uses R718 (water) as refrigerant, I've calculated that the mass flux through the evaporator should be approximately 0.0104 kg/s at a pressure of 0.01 bar to develop a temperature of 7C. However, I couldn't achieve the mass flux due to some geometric characteristic of the evaporator. The rotary speed of the pump is 2000 rpm and the pressure and enthalpy at the evaporator inlet is 0.01 bar and 206.9 kj/kg. The following images are the system and the parameters of the evaporator and the pump.

Many Thanks,

Rodrigo.

sys.png
Eva.png
pump.png