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Steam at 900 degrees F and 1200 Psi enters an insulated turbine operating at a steady state through a 4 foot diamter pipe with a velocity of 150 ft/s. Potential energy effects are negligible. Sketch the process on an appropriate diagram and determine:
A The maximum theoretical power that can be developed by the turbine, in MW, and the corresponding turbine exit temperature
B The isentropic turbine efficiency for an exit temperature of 300 degrees F
C the rate of entropy production of turbine for both A) and b) above.
a refrigerator freezer compartment is maintained at a temperature of -15degf by removing heat at a rate of 4500 btuhr.
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Kinetic and potential energy effects can be ignored. Evaluate the work required and the heat transfer, each in kW.
the inside surface of an 8-in-thick common brick wall is maintained at 100 f. thermal conductivity of th brick is 1.0
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