There it was. He had forgotten the pinch point. In the real world, the exhaust gas could not cool below the steam saturation temperature plus a minimum temperature difference (say, 10°C). His model ignored that, effectively breaking the second law.
Then, beneath that: “R. Yadav, you tricky devil.” Steam And Gas Turbine By R Yadav Pdf 133 HOT
Feasibility? “Not feasible,” he whispered. “You’d need an infinite heat exchanger surface area and a miracle.” There it was
He sat back. That was high—too high. A normal combined cycle might touch 55-60% in ideal conditions. But his inlet temperatures weren’t exotic. Something was off. 10°C). His model ignored that