Water enters a diffuser at 80°C and 500 kPa with velocity of 100 m/s. It leaves...
Water enters a diffuser at 80°C and 500 kPa with velocity of 100 m/s. It leaves the diffuser at 150°C and 700 kPa. The ratio of the inlet to exit area (A/A2) is 0.5. Calculate the heat transfer to the water during the process in kJ/kg. [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...
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....
Refrigerant-134a enters a diffuser as saturated vapor at 800kpa with a velocity of 120m/s, and leaves the device at 900kpa and 40^C. The R-134a is gaining energy by heat transfer at a rate of 2kW as it passes through the diffuser. If the exit area is 80% greater than the inlet area, determine the exit velocity m/s, and the mass flow rate kg/s.
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 with a velocity of 900km/hr and at 0 C and 50 kPa. It leaves at 80 m/sec. If the exit area exceeds the inlet one by 20% * The exit temperature (C) is.1 22.9 9.22 2.29 92.2 * The exit pressure (kPa) is.2 14.42 143.8 22.93 100.0 O
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 ?
3. Steam enters a nozzle at 400°C and 800 kPa with a velocity of 5 m/s and leaves at 500 kPa and 350°C, while losing 60 kJ/kg of heat. For an inlet area of 0.5 m², determine the velocity. volumetric flow rate and mass flow rate at the outlet
Air enters a diffuser with a velocity of 900km/hr and at 0 C and 50 kPa. It leaves at 80 m/sec. If the exit area exceeds the inlet one by 20% 1. The exit temperature (C) is * O 2.29 9.22 22.9 O O O O O 92.2 9 This is a required question 2. The exit pressure (kPa) is* O 100.0 o 22.93 оооо O 143.8 O 14.42
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)