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HWK16: Problem 2 Previous Problem Next Problem Problem List (6 points) Helium gas enters an adiabatic...
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...
Air initially at 120 psia and 500*F is expanded by an adiabatic turbine to 15 psia...
Air initially at 120 psia and 500*F is expanded by an adiabatic turbine to 15 psia and 200* F. Assuming air can be treated as an ideal gas and has variable specific heat. a) Determine the specific work output of the actual turbine (Btu/lbm). b) Determine the amount of specific entropy generation during the irreversible process (Btu/lbm R). c) Determine the isentropic efficiency of this turbine (%). d) Suppose the turbine now operates as an ideal compressor (reversible and adiabatic)...
Develop an excel file to solve the following problem: Air enters an adiabatic nozzle at 45...
Develop an excel file to solve the following problem: Air enters an adiabatic nozzle at 45 psia and 940F with a low velocity and exits at 650ft/s. Considering constant specific heats at room temperature, investigate the effect of the nozzle efficiency on the exit temperature (actual) and the pressure. Plot the temperatures, in degrees R (actual and isentropic) and the pressure, in psia as function of the nozzle efficiency. Vary the efficiency from 70% to 100%. Repeat for an inlet...
ANSWER PLEASE PROBLEM #2 (68 pts.) Steam at 200 psia, 600°F (State 1) enters an adiabatic...
ANSWER PLEASE
PROBLEM #2 (68 pts.) Steam at 200 psia, 600°F (State 1) enters an adiabatic turbine cperating at steady state with a mass flow rate of 16.5 lbm/min and exits at 15 psia, 240°F (State 2), Neglecting the changes in kinetic and potential energies and assuming the surroundings to be at T.- 537 R. Determine: a) the actual power output, in Btu/min. b) the reversible (or maximum) power output, in Btu/min. c) the rate of exergy destruction, in Btu/min....
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...
The stators in a gas turbine are designed to increase the kinetic energy of the gas...
The stators in a gas turbine are designed to increase the kinetic energy of the gas passing through them adiabatically. Air enters a set of these nozzles at 300 psia and 700°F with a velocity of 74 ft/s and exits at 250 psia and 645°F. Calculate the velocity at the exit of the nozzles. The specific heat of alr at the average temperature of 672.5F is cp-0.253 Btu/lbm-R The velocity at the exit of the nozzles is [ ft/s
NO INTERPOLATION REQUIRED Air enters an adiabatic turbine at 1000 kPa and 1625 degrees C (state...
NO INTERPOLATION REQUIRED Air enters an adiabatic turbine at 1000 kPa and 1625 degrees C (state 1) with a mass flow rate of 5 kg/s and leaves at 100 kPa the isentropic efficiency of the turbine is 85%. Neglecting the kinetic energy change of the steam, and considering variable specific heats, determine: a. the isentropic power of the turbine Isentropic power in kW b. the temperature at the turbine exit temperature at exit in degrees C c. the actual power...
The stators in a gas turbine are designed to increase the kinetic energy of the gas...
The stators in a gas turbine are designed to increase the kinetic energy of the gas passing through them adiabatically. Air enters a set of these nozzles at 300 psia and 700°F with a velocity of 80 ft/s and exits at 250 psia and 645°F. Calculate the velocity at the exit of the nozzles. The specific heat of air at the average temperature of 672.5°F is Cp = 0.253 Btu/lbm-R. The velocity at the exit of the nozzles is
At launch, the space shuttle main engine (SSME) has 1030 lbm/s gas leaving the combustion chamber...
At launch, the space shuttle main engine (SSME) has 1030 lbm/s gas leaving the combustion chamber at Pt 3000 psia ani Tt 7350 R. The exit area of the SSME's nozzle is 77 times the throat area. If the flow through the nozzle is considered to reversible and adiabatic (isentropic) with Rgc 3800 ft s.°R ani γ= 1.25, find the area of the nozzle throat (in2) and the exit Mad number. Hint: Use the MFP to get the throat area....
2. Air enters an adiabatic nozzle with a pressure, temperature, and velocity of 900 kPa 500°C, an...
2. Air enters an adiabatic nozzle with a pressure, temperature, and velocity of 900 kPa 500°C, and 2.8 m/s, respectively. The air leaves the nozzle at 850 kPa and 480°C. What is the velocity at the exit of the nozzle? Ans 208.949 m/s
2. Air enters an adiabatic nozzle with a pressure, temperature, and velocity of 900 kPa 500°C, and 2.8 m/s, respectively. The air leaves the nozzle at 850 kPa and 480°C. What is the velocity at the exit...
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...
ANSWER PLEASE
PROBLEM #2 (68 pts.) Steam at 200 psia, 600°F (State 1) enters an adiabatic turbine cperating at steady state with a mass flow rate of 16.5 lbm/min and exits at 15 psia, 240°F (State 2), Neglecting the changes in kinetic and potential energies and assuming the surroundings to be at T.- 537 R. Determine: a) the actual power output, in Btu/min. b) the reversible (or maximum) power output, in Btu/min. c) the rate of exergy destruction, in Btu/min....
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...
The stators in a gas turbine are designed to increase the kinetic energy of the gas passing through them adiabatically. Air enters a set of these nozzles at 300 psia and 700°F with a velocity of 74 ft/s and exits at 250 psia and 645°F. Calculate the velocity at the exit of the nozzles. The specific heat of alr at the average temperature of 672.5F is cp-0.253 Btu/lbm-R The velocity at the exit of the nozzles is [ ft/s
The stators in a gas turbine are designed to increase the kinetic energy of the gas passing through them adiabatically. Air enters a set of these nozzles at 300 psia and 700°F with a velocity of 80 ft/s and exits at 250 psia and 645°F. Calculate the velocity at the exit of the nozzles. The specific heat of air at the average temperature of 672.5°F is Cp = 0.253 Btu/lbm-R. The velocity at the exit of the nozzles is
At launch, the space shuttle main engine (SSME) has 1030 lbm/s gas leaving the combustion chamber at Pt 3000 psia ani Tt 7350 R. The exit area of the SSME's nozzle is 77 times the throat area. If the flow through the nozzle is considered to reversible and adiabatic (isentropic) with Rgc 3800 ft s.°R ani γ= 1.25, find the area of the nozzle throat (in2) and the exit Mad number. Hint: Use the MFP to get the throat area....
2. Air enters an adiabatic nozzle with a pressure, temperature, and velocity of 900 kPa 500°C, and 2.8 m/s, respectively. The air leaves the nozzle at 850 kPa and 480°C. What is the velocity at the exit of the nozzle? Ans 208.949 m/s
2. Air enters an adiabatic nozzle with a pressure, temperature, and velocity of 900 kPa 500°C, and 2.8 m/s, respectively. The air leaves the nozzle at 850 kPa and 480°C. What is the velocity at the exit...
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