Question: An ideal Stirling engine using helium as the working fluid operates between the temperature limits of 38oC and 850oC and pressure limits of 102 kPa

An ideal Stirling engine using helium as the working fluid operates between the temperature limits of 38oC and 850oC and pressure limits of 102 kPa and 1020 kPa. Assuming the mass used in the cycle is 1 kg, determine
(a) The thermal efficiency (ηth) of the cycle and
(b) The net work (wnet).

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