Chapter 6, Problem 6.95P

Steam enters a turbine operating at steady state at 750°F and 450 lbf/in² and leaves as a saturated vapor at 0.8 lbf/in². The turbine develops 12,000 hp, and heat transfer from the turbine to the surroundings occurs at a rate of 2 x 106 Btu/h. Neglect kinetic and potential energy changes from inlet to exit. Determine the exit temperature, in °F, and the volumetric flow rate of the steam at the inlet, in ft³/s. Step 1 Determine the exit temperature, in °F. T₂ = i °F.

Steam enters a turbine operating at steady state at 750°F and 450 lbf/in² and leaves as a saturated vapor at 0.8 lbf/in². The turbine develops 12,000 hp, and heat transfer from the turbine to the surroundings occurs at a rate of 2 x 106 Btu/h. Neglect kinetic and potential energy changes from inlet to exit. Determine the exit temperature, in °F, and the volumetric flow rate of the steam at the inlet, in ft3/s. Step 1 Your answer is correct. Determine the exit temperature, in °F. T2 = 94.3 Hint Step 2 °F. Determine the volumetric flow rate of the steam at the inlet, in ft³/s. (AV) 1 = i ft³/s Attempts: 1 of 4 used

Steam enters a turbine operating at steady state at 750°F and 450 lbf/in² and leaves as a saturated vapor at 0.8 lbf/in². The turbine develops 12,000 hp, and heat transfer from the turbine to the surroundings occurs at a rate of 2 x 106 Btu/h. Neglect kinetic and potential energy changes from inlet to exit. Determine the exit temperature, in °F, and the volumetric flow rate of the steam at the inlet, in ft³/s.

Steam enters a turbine operating at steady state at 850°F and 450 Ibf/in? and leaves as a saturated vapor at 1.0 lbf/in?. The turbine develops 12,000 hp, and heat transfer from the turbine to the surroundings occurs at a rate of 2x 106 Btu/h. Neglect kinetic and potential energy changes from inlet to exit. Determine the exit temperature, in °F, and the volumetric flow rate of the steam at the inlet, in ft/s. Step 1 Determine the exit temperature, in °F. T2 = °F.

Steam enters a turbine operating at steady state at 800°F and 450 Ibf/in? and leaves as a saturated vapor at 1.4 Ibf/in?. The turbine develops 12,000 hp, and heat transfer from the turbine to the surroundings occurs at a rate of 2 x 106 Btu/h. Neglect kinetic and potential energy changes from inlet to exit. Determine the exit temperature, in °F, and the volumetric flow rate of the steam at the inlet, in ft/s.

6.14

Air enters a compressor operating at steady state at 15 lbf/in.2, 80°F and exits at 375°F. Stray heat transfer and kinetic and potential energy effects are negligible.Assuming the ideal gas model for the air, determine the maximum theoretical pressure at the exit, in lbf/in.2

Refrigerant 134a enters an insulated diffuser as a saturated vapor at 80 deg F with a velocity of 800 ft/s. The inlet area is 1.4 in^2. At the exit, the pressure is 400 lbf/in2 and the velocity is negligible. The diffuser operates at steady state and potential energy effects can be neglected. Determine the mass flow rate, in lb/s, and the exit temperature, in deg F.

Air expands through a turbine operating at steady state. At the inlet, p1 = 150 lbf/in.?, T1 = 1400°R, and at the exit, p2 = 14.8 lbf/in.?, T2 = 900°R. The mass flow rate of air entering the turbine is 11 lb/s, and 65,000 Btu/h of energy is rejected by heat transfer. Neglecting kinetic and potential energy effects, determine the power developed, in hp. Wey = i hp cv