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// (5.1) An inventor claims to have developed a power cycle capable of delivering a net work output of 410 kJ for an energy input by heat transfer of 1000 kJ. The system undergoing the cycle receives the heat transfer from hot gases at a temperature of 500 K and discharges energy by heat transfer to the atmosphere at 300 K. Evaluate this claim.
//solution
//variable initialization
W = 410 //net work output in kj claimed
Q = 1000 //energy input by heat transfer in kj
Tc = 300 //temperature of cold reservoir in kelvin
TH = 500 //temperature of hot reservoir in kelvin
eta = W/Q //thermal efficiency
etamax = 1-Tc/TH
printf('eta = %f',eta)
printf('\n etamax = %f',etamax)
printf('\n since eta is more than etamax, the claim is not authentic')
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