THE CORRECT ANSWER IS 670,565 1a) The velocity of steam at the inlet of an insulated...
THE CORRECT ANSWER IS 670,565
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1a) The velocity of steam at the inlet of an insulated steam turbine is 110 ft/sec. The enthalpy of the steam at the inlet of the turbine is 1,800 BTU/lbm. The steam exits the turbine with a velocity of 275 ft/sec. The enthalpy of the steam as it exits the turbine is of 937 BTU/lbm. Determine the work done by the turbine in ft-lbf/lbm. THE CORRECT ANSWER IS 6,726 1b) Steam expands in a nozzle from an initial enthalpy of 1,452 BTU/lbm to a final enthalpy of 579 BTU/lbm. Determine the final velocity of the steam, in ft/sec, if the initial steam velocity is 1,235 ft/sec. Assume the process is adiabatic. |
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THE CORRECT ANSWER IS 670,565
1a) The velocity of steam at the inlet of an
insulated...
A ship's steam turbine receives 7200 lbm/min of steam at pressure of 900psia and a velocity...
A ship's steam turbine receives 7200 lbm/min of steam at pressure of 900psia and a velocity of 100ft/s. The steam leaves the turbine at 450 psia with a velocity of 800 ft/s. Specific enthalpy at the inlet and exit, respectively, are 1508.9 Btu/lbm and 1238.5 Btu/lbm. As the steam passes through turbine 12 Btu/lbm of heat is lost to the environment. a) Using the Steady Flow Energy Equation, determine the specific work generated by this turbine. (Btu/lbm) b) Determine the...
10. (25 Points) Steam enters an insulated nozzle at 140 psia, 600 F with a velocity...
10. (25 Points) Steam enters an insulated nozzle at 140 psia, 600 F with a velocity of 100 ft/s. It leaves the nozzle at 20 psia, 360°F. The mass flow rate is 10 lbm/s. Find: Ans a) b) Ans. The actual kinetic energy of the steam at the exit, in Btu The exit velocity in ft/s for part a) The exit cross sectional area of the nozzle, in in The nozzle isentropic efficiency (%) Show the actual and the ideal...
Steam expands through a well-insulated turbine from inlet conditions 300c and 4 Mpa with negligible velocity...
Steam expands through a
well-insulated turbine from inlet conditions 300c and 4 Mpa with
negligible velocity to exit conditions 40m/s and 0.075Mpa. The
turbine is operating at steady state and has an exit diameter of
0.6Mpa. Select two different values of exit quality in the range of
0.2 to 0.5 and subsequently plot the power generated by the turbine
in kw
Question 3 Steam expands through a well-insulated turbine from inlet conditions 300°C and 4 MPa with negligible velocity to...
1 Steam enters a well-insulated nozzle at 300 lbf/in.2, 600°F, with a velocity of 100 ft/s...
1
Steam enters a well-insulated nozzle at 300 lbf/in.2, 600°F, with a velocity of 100 ft/s and exits at 60 Ibf/in.2 with a velocity of 1800 ft/s. For steady-state operation, and neglecting potential energy effects, determine the exit temperature, in °F OF
steam expands through a well insulated turbine from inlet condition 300c and 4Mpa with negligible velocity...
steam expands through a well insulated turbine from inlet condition 300c and 4Mpa with negligible velocity to exit condition 40m/s and 0.075Mpa. The turbine is operating at steady state and has an exit diameter of 0.6m. select 2 different values of exit quality in the range of 0.2 to 0.5 and subsequently plot the power generated by the turbine in kW
1. Water enters the constant 130-mm inside-diameter tubes of a boiler at 7 MPa and 65°C...
1. Water enters the constant 130-mm inside-diameter tubes of a boiler at 7 MPa and 65°C and leaves the tubes at 6 MPa and 450°C with a velocity of 80 m/s. Calculate the velocity of the water at the tube inlet and the inlet volume flow rate. [5-14] 2. Air enters a nozzle steadily at 50 psia, 140°F, and 150 ft/s and leaves at 14.7 psia and 900 ft/s. The heat loss from the nozzle is estimated to be 6.5...
7.10. Steam expands adiabatically in a nozzle from inlet conditions of 130(psia), 420(°F), and a velocity...
7.10. Steam expands adiabatically in a nozzle from inlet conditions of 130(psia), 420(°F), and a velocity of 230(ft)(s)−1 to a discharge pressure of 35(psia) where its velocity is 2000(ft)(s)−1. What is the state of the steam at the nozzle exit, and what is Sg for the process?
Question 3 Steam expands through a well-insulated turbine from inlet conditions 300°C and 4 MPa with...
Question 3 Steam expands through a well-insulated turbine from inlet conditions 300°C and 4 MPa with negligible velocity to exit conditions 40 m/s and 0.075 MPa. The turbine is operating at steady state and has an exit diameter of 0.6 m. Select two (2) different values of exit quality in the range of 0.2 to 0.5 and subsequently plot the power generated by the turbine in kW. (10 MARKS]
5-30 Air enters an adiabatic nozzle steadily at 300 kPa, 200°C, and 30 m/s and leaves...
5-30 Air enters an adiabatic nozzle steadily at 300 kPa, 200°C, and 30 m/s and leaves at 100 kPa and 180 m/s. The inlet area of the nozzle is 80 cm². Determine (a) the mass flow rate through the nozzle, (b) the exit temperature of the air, and (c) the exit area of the nozzle. Answers: (a) 0.5304 kg/s, (b) 184.6°C, (c) 38.7 cm P = 300 kPa T, = 200°C Vi = 30 m/s A = 80 cm AIR...
Thermodynamics 1. (correct answer: 0.080595 ) Initially, an insulated rigid tank contains 20 kg of water...
Thermodynamics 1. (correct answer: 0.080595 ) Initially, an insulated rigid tank contains 20 kg of water at 29.5oC and 101 kPa. The tank also contains a 4.86 kg aluminum block at 93.2oC. Using constant specific heats evaluated at 300 K, determine the total entropy production (kJ/K) after an hour assuming thermal equilibrium is achieved. 2. Correct Answer: 8.0087 ± 0.1% Steam at 1 MPa, 593.2oC, expands in a turbine to 0.01 MPa. If the process is isentropic, find the specific...
10. (25 Points) Steam enters an insulated nozzle at 140 psia, 600 F with a velocity of 100 ft/s. It leaves the nozzle at 20 psia, 360°F. The mass flow rate is 10 lbm/s. Find: Ans a) b) Ans. The actual kinetic energy of the steam at the exit, in Btu The exit velocity in ft/s for part a) The exit cross sectional area of the nozzle, in in The nozzle isentropic efficiency (%) Show the actual and the ideal...
Steam expands through a
well-insulated turbine from inlet conditions 300c and 4 Mpa with
negligible velocity to exit conditions 40m/s and 0.075Mpa. The
turbine is operating at steady state and has an exit diameter of
0.6Mpa. Select two different values of exit quality in the range of
0.2 to 0.5 and subsequently plot the power generated by the turbine
in kw
Question 3 Steam expands through a well-insulated turbine from inlet conditions 300°C and 4 MPa with negligible velocity to...
1
Steam enters a well-insulated nozzle at 300 lbf/in.2, 600°F, with a velocity of 100 ft/s and exits at 60 Ibf/in.2 with a velocity of 1800 ft/s. For steady-state operation, and neglecting potential energy effects, determine the exit temperature, in °F OF
1. Water enters the constant 130-mm inside-diameter tubes of a boiler at 7 MPa and 65°C and leaves the tubes at 6 MPa and 450°C with a velocity of 80 m/s. Calculate the velocity of the water at the tube inlet and the inlet volume flow rate. [5-14] 2. Air enters a nozzle steadily at 50 psia, 140°F, and 150 ft/s and leaves at 14.7 psia and 900 ft/s. The heat loss from the nozzle is estimated to be 6.5...
Question 3 Steam expands through a well-insulated turbine from inlet conditions 300°C and 4 MPa with negligible velocity to exit conditions 40 m/s and 0.075 MPa. The turbine is operating at steady state and has an exit diameter of 0.6 m. Select two (2) different values of exit quality in the range of 0.2 to 0.5 and subsequently plot the power generated by the turbine in kW. (10 MARKS]
5-30 Air enters an adiabatic nozzle steadily at 300 kPa, 200°C, and 30 m/s and leaves at 100 kPa and 180 m/s. The inlet area of the nozzle is 80 cm². Determine (a) the mass flow rate through the nozzle, (b) the exit temperature of the air, and (c) the exit area of the nozzle. Answers: (a) 0.5304 kg/s, (b) 184.6°C, (c) 38.7 cm P = 300 kPa T, = 200°C Vi = 30 m/s A = 80 cm AIR...
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