A reciprocating compressor draws in 500 cubic feet per minute of air whose density is 0.079 Ib/ft^3 and discharge it with density of 0.304 lb/ft 3. At the suction P1-15 psia: at discharge. P2-80 psia. The increase in the specific internal energy is 33.8 BTU/b and the heat transferred from the air by cooling is 13 BTU/lb. Determine the work on the air in BTU/lb. Neglect change in kinetic energy

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Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.