A two-stage, single-acting reciprocating air compressor draws in air at 1 bar and 300 K. The delivery pressure is 12 bar. The intermediate pressure is ideal for minimum work and the intercooling is perfect. The index of compression is 1.3. Flow rate of air through the compressor is 0.15 kg/sec. Determine: (O Power required to drive the compressor, (ii) Saving in power compared to single stage,

Please match the formulate (energy and/or mass balance) to the corresponding steady flow devices:                                                                        A not well insulated nozzles by neglecting the potential energy change.                                                                        An adiabatic turbine by neglecting the kinetic and potential energy change.                                                                        A not well insulated compressor by neglecting the kinetic and potential energy change.                                                                        An adiabatic mixing chamber with two inlets and one exit by neglecting the kinetic and potential energy change.                                                                        An adiabatic throttling valve by neglecting the kinetic and potential energy change. A.   B.   C.   D.   E.