A Carnot power cycle operates on 3lb of air between the limits of 8000F and 6000F. The pressure at the beginning of isothermal expansion is 400 psia and at the end of isothermal expansion is 195 psia. Determine a. the volume at the end of isothermal compression, b. ∆S during an isothermal process (the ratio of compression during isothermal heating and the overall ratio of expansion, c. Compute the heat added (QA), heat rejected (QR), work (W) and cycle efficiency

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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.