A Carnot heat engine works between 450 o C and 25 o C. The work output is
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Question:
- A Carnot heat engine works between 450oC and 25oC. The work output is used to drive a Carnot refrigerator that removes heat from -15oC space at a rate of 400kJ/min and rejects the heat to 25 oC environment.
- Find the rate of heat supplied to the heat engine
- Find the total rate of heat rejection to the environment
ii) In the steady state of a steam turbine operation, steam enters a turbine at a rate of 25000 kg/hr at 4MPa and 550oC. The steam expands and leaves the turbine as saturated vapor at 50kPa. The power produced by the turbine is 6MW.
- Given the surrounding is at 25oC, find the rate of entropy generation.
b. The turbine has an isentropic efficiency of 90%. Find the power output of the turbine.
Related Book For
Thermodynamics An Engineering Approach
ISBN: 978-0073398174
8th edition
Authors: Yunus A. Cengel, Michael A. Boles
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