dU = dH - Vdp - pdV.
What is the exhaust temperature, Toutmin, in an isentropic turbine? Using the polytropic law,
Applying the perfect gas law, we can eliminate the volumes:
The energy delivered by the isentropic turbine is
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The solar Stirling engine is progressively becoming a viable alternative to solar panels for its higher efficiency. Stirling engines might be the best way to harvest the power provided by the sun. This is an easy-to-understand explanation of how Stirling engines work, the different types, and why they are more efficient than steam engines.