Refrigerant-134a enters an adiabatic compressor as saturated vapor at 160 kpa at a rate of 2 m³/min and is compressed to a pressure of 900 kpa. determine the minimum power that must be supplied to the compressor.

Minimum power of compressor = 9.71 kW

Explanation:

The values of entropy, initial specific volume and enthalpy are obtained from the table for R-134a.

Entropy, s = 0.942 kJ/kg/K

Specific volume, = 0.12355

Enthalpy, = 241.4 kJ/kg

Final enthalpy can be found out from the table using the given pressure and entropy.

= 277.12 kJ/kg/K

Minimum power =

                            = ()

Minimum power = 9.71 kW

explanation:

a fuel engine ( known as a gasoline engine in american english )is an internal combustion engine with spark ignition, designed to run on petrol (gasoline) and similar volatile fuels.

f=ma newton's second law 7x8=56n