The cooling circuit of an air conditioning system is a heat exchanger and the outside air passes. The air flow is 40 cubic meters / min, enters a40 ° C, 1.1bar, and exits at 20 ° C, 1 bar.The R-12 enters the tubes with a quality of 40% and 10 º C and leaves as saturated vapor at 10 ° C. Ignoring the heat transferbetween the exchanger and the environment, and neglecting the effects of kinetic and potential energy, determine to a steady state.
a) The mass flow of refrigerant in kg / min