Air flows steadily and adiabatically through a horizontal straight pipe. The air enters the pipe at...
Air flows steadily and adiabatically through a horizontal straight pipe. The air enters the pipe at an absolute pressure of 100 psia, a temperature of 1000F, and a linear velocity of 10 ft/sec. The air leaves at 2 psia. Assuming ideal gas, determine the velocity and temperature of the leaving air?
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Air flows steadily and adiabatically through a horizontal
straight pipe. The air enters the pipe at...
Air Flows steadily between two sections in a long, straight portion of 4-in inside diameter. The...
Air Flows steadily between two sections in a long, straight portion of 4-in inside diameter. The uniformly distributed temperature and pressure at each section are given. If the average air velocity (non-uniform velocity distribution) at section 2 is 1000ft/s, calculate the average air velocity at Section (l). Given: Air behaves like an ideal gas D1- D2 = 4 in; p1 = 100 psia, p2 =18.4 psia T1 = 5400R, T2 = 453 R. v2 = 1000ft/s
Air at 12.7psia and 72oF enters an adiabatic diffuser steadily with a velocity of 775 ft/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.
Air flows steadily in a pipe with a velocity of 60 ft/s. Surrounding the pipe in...
Air flows steadily in a pipe with a velocity of 60 ft/s. Surrounding the pipe in an annulus is a second flow of air with a velocity of 40 ft/s. Both flows are exhausted through a 1.5 ft diameter pipe. If the velocity is uniform at the exit, determine the velocity at the exit. Assume constant density.
Air enters a 16-cm-diameter pipe steadily at 200 kPa and 20°C with a velocity of 5...
Air enters a 16-cm-diameter pipe steadily at 200 kPa and 20°C with a velocity of 5 m/s. Air is heated as it flows, and it leaves the pipe at 180 kPa and 38°C. The gas constant of air is 0.287 kPa·m3/kg·K. Whats the volumetric flow rate of the inlet/outlet, mass flow rate and velocity & volume flow rate at the exit?
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...
P1) (50 points) - Air is compressed steadily by a 7.5-kW compressor. Air enters a compressor...
P1) (50 points) - Air is compressed steadily by a 7.5-kW compressor. Air enters a compressor at a pressure of 100 kPa, a temperature of 290 K and a velocity of 6 m/s through an inlet with an area of 0.005 m2. At the exit, the pressure is 700 kPa, the temperature 480 K and the velocity is 2 m/s. Determine: a) heat transfer that takes place between the compressor and the surrounding medium at 290 K, in kW and...
Water flows through a horizontal pipe similar to the pipe in DL. It enters the pipe...
Water flows through a horizontal pipe similar to the pipe in DL. It enters the pipe at point (1), then leaves the pipe at point (2), which is open to the atmosphere. The height of the water in each vertical column is below. Now suppose that the length of this pipe is doubled. The pressure at point (I) is the same as before. Point (2) is still open to the atmosphere. Water is again allowed to flow from point (1)...
Air at 10 degree C and 80 kPa enters the diffuser of a jet engine steadily...
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....
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...
3. Air enters a constant area duct at a Mach number of 0.14, a pressure of 195 kPa, and a temperature of 25 °C. Heat is added to the air that flows through the duct at a rate of 65 kJ/kg of air. A...
3. Air enters a constant area duct at a Mach number of 0.14, a pressure of 195 kPa, and a temperature of 25 °C. Heat is added to the air that flows through the duct at a rate of 65 kJ/kg of air. Assuming that the flow is steady and that the effects of wall friction can be ignored, find the temperature, pressure, and Mach number at which the air leaves the duct. Assume that the air behaves as a...
Air Flows steadily between two sections in a long, straight portion of 4-in inside diameter. The uniformly distributed temperature and pressure at each section are given. If the average air velocity (non-uniform velocity distribution) at section 2 is 1000ft/s, calculate the average air velocity at Section (l). Given: Air behaves like an ideal gas D1- D2 = 4 in; p1 = 100 psia, p2 =18.4 psia T1 = 5400R, T2 = 453 R. v2 = 1000ft/s
Air flows steadily in a pipe with a velocity of 60 ft/s. Surrounding the pipe in an annulus is a second flow of air with a velocity of 40 ft/s. Both flows are exhausted through a 1.5 ft diameter pipe. If the velocity is uniform at the exit, determine the velocity at the exit. Assume constant density.
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...
P1) (50 points) - Air is compressed steadily by a 7.5-kW compressor. Air enters a compressor at a pressure of 100 kPa, a temperature of 290 K and a velocity of 6 m/s through an inlet with an area of 0.005 m2. At the exit, the pressure is 700 kPa, the temperature 480 K and the velocity is 2 m/s. Determine: a) heat transfer that takes place between the compressor and the surrounding medium at 290 K, in kW and...
Water flows through a horizontal pipe similar to the pipe in DL. It enters the pipe at point (1), then leaves the pipe at point (2), which is open to the atmosphere. The height of the water in each vertical column is below. Now suppose that the length of this pipe is doubled. The pressure at point (I) is the same as before. Point (2) is still open to the atmosphere. Water is again allowed to flow from point (1)...
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....
3. Air enters a constant area duct at a Mach number of 0.14, a pressure of 195 kPa, and a temperature of 25 °C. Heat is added to the air that flows through the duct at a rate of 65 kJ/kg of air. Assuming that the flow is steady and that the effects of wall friction can be ignored, find the temperature, pressure, and Mach number at which the air leaves the duct. Assume that the air behaves as a...
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