steam enters a turbine with a pressure of 25 bar and temperature of 500?C. Satur
ID: 1863165 • Letter: S
Question
steam enters a turbine with a pressure of 25 bar and temperature of 500?C. Saturated vapor exits at 100?C. At steady state, the turbine develops work equal to 600 KJ/Kg of steam flowing through the turbine. Heat transfer between the turbine and its surrounding occurs at average outer surface temperatures of 35?C. Determine the rate at which entropy is produced within the turbine per Kg of steam flowing, in KJ/Kg K. The changes in Kinetic and potential energies can be negleglected.
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Explanation / Answer
Conversion (OTEC) project in Hawaii produces electricity from the temper- ature difference between water near the surface of the ocean (about 27
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