Steam enters a diffuser steadily at 0.3MPa and 250 °C and 94.3 m/s at a rate of 4.5 kg/s. The inlet area of the diffuser is _____ cm^2.
Steam enters a diffuser steadily at 0.3MPa and 250 °C and 94.3 m/s at a rate...
Air at 10 degree C and 80 kPa enters the diffuser of a jet engine steadily with a velocity of 200 m/s. The inlet area of the diffuser is 0.4 m^2.The air leaves the diffuser with a velocity that is very small compared with the inlet velocity. Determine the mass flow rate of the air and the temperature of the air leaving the diffuser. Air at 100 kPa and 280 K is compressed steadily to 600 kPa and 400 K....
Air steadily enters the diffuser section of a jet engine at a velocity of 270 m/s at 85 kPa and at 250 °C. There is heat addition from the diffuser walls to the air. The air exits the diffuser at 1/3 of its inlet velocity. The heat addition per kg air entering the diffuser is 13 kJ/kg. What is the change in the specific enthalpy of the air (kJ/kg)?
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...
Air at 10°C and 80 kPa (static values) enters the diffuser of a jet engine steadily with a velocity of 200 m/s. The inlet area of the diffuser is 0.4 m2. The air leaves the diffuser with a velocity of 40 m/s. Calculate 1) air density 2) air mass flow 3) inlet stagnation temprature 4) Inlet stgnation enthelpy 5) Outlet static temprature T2 a. 0.98 kg/m3 b. 1.01 kq/m3 c. 1.33 kg/m3 d. 90.1 kg/s e. 88.3 kg/m3 78.8 kg/m3...
Nitrogen gas at 60 kPa and 7°C enters an adiabatic diffuser steadily with a velocity of 200 m/s and leaves at 85 kPa and 22°C. Determine (a) the exit velocity of the nitrogen and (b) the ratio of the inlet to exit area A1/A2. Why in this question we ignore the value of mass flow rate ?
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the power output in KW
In a power plant, steam enters a turbine steadily at 10 MPa and 600°C with a velocity 65 m/s and leaves at 125 kPa with a 96 percent quality. A heat loss of 22 kJ/kg occurs during the process. The inlet area of the turbine is 140 cm². Determine (a) the mass flow rate of the steam and (b) the power output.
2 5: Steam enters an adiabatic diffuser at 0.3 MPa, 200 °C, 440 m/s and leaves at 0.5 MPa, 250 C through an 800 cm2 opening. Determine the exit velocity, m/s, and the mass flowrate, kg/s.
Air at 12.7psia and 72oF enters an adiabatic diffuser steadily with a velocity of 775 ft/s and leaves with a low velocity at a pressure of 14.2 psia. The exit area of the diffuser is 3 times in the inlet area. Determine (a) the exit temperature and (b) the exit velocity of the air. Please show work for interpolation.
Water vapor enters a diffuser at a pressure of 0.7 bar, a temperature of 160°C, and a velocity of 180 m/s. The inlet to the diffuser is 100 cm The exit conditions from the diffuser are: velocity of 60 m/s and pressure of 1.0 bar. During the passage of the water vapor through the diffuser, there is heat transfer to the surroundings of 0.6 kJ/kg. Determine (a) the final temperature. (b) the mass flow rate in kg/s, and (c) the...
Air enters a diffuser at 102 KPa , 57 Celcius , and 285 m/s and exits at 303 kPa , 10 Celcius , and 12 m/s. The area of the inlet of the diffuser is 97 cm2. Find the mass flow rate of air (kg/s), find the area of the exit of the diffuser (cm2), find the average heat transfer time rate (kW)