Steam expands adiabatically through a turbine at steady state. The entering stream is at 750 lbf/in^2, 750°F, and the exiting stream is a saturated vapor at 10 lbf/in^2. Kinetic and potential energy effects are negligible. a. How much work per lb of flow does the turbine produce, in Btu/lbm? b. If the turbine produces 3000 kW of output power, determine the mass flow rate of steam in kg/s. c. If this process were isentropic, the existing stream would no longer be a saturated vapor. Determine the final quality of steam in that case. d. Determine the isentropic turbine efficiency.
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Steam expands adiabatically through a turbine at steady state. The entering stream is at 750 lbf/in^2, 750°F, and the exiting stream is a saturated vapor at 10 lbf/in^2. Kinetic and potential energy effects are negligible.
a. How much work per lb of flow does the turbine produce, in Btu/lbm?
b. If the turbine produces 3000 kW of output power, determine the mass flow rate of steam in kg/s.
c. If this process were isentropic, the existing stream would no longer be a saturated vapor. Determine the final quality of steam in that case.
d. Determine the isentropic turbine efficiency.
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