Calculate the rate of irreversibility for an ambient temperature of 77°F for the turbine in Problem 3
Problem
An uninsulated steam turbine produces 25,000 hp of power from steam entering at 1200 psia and 900°F and exiting as a saturated vapor at 80 psia, at a flow rate of 72 lbm/s. The surface temperature is maintained at 120°F. Calculate the entropy generation rate. Is this process possible? If not, what are some possible problems with this steam turbine concept?
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