Air in a reservoir at 20°C and 500 kPa (abs) exits a hole to atmosphere with...
03 4: Air from the surrounding atmosphere at 100 kPa, 20 °C, enters a compressor with a velocity of 8.6 m/s through an inlet whose diameter is 36 cm. The compressed air exits at 650 kPa, 225 °C, with a velocity of 2.8 m/s. The rate of entropy generation for the compressor is 0.062 kW/K Determine the power input to the compressor, kW.
3_4: Air from the surrounding atmosphere at 100 kPa, 20 oC, enters a compressor with a velocity of 8.6 m/s through an inlet whose diameter is 36 cm. The compressed air exits at 650 kPa, 225 oC, with a velocity of 2.8 m/s. The rate of entropy generation for the compressor is 0.062 kW/K. Determine the power input to the compressor, kW.
Normal Shock Nozzle Exit (4, -6 cm? Back pressure Air from a reservoir at 350 K and 500 kPa, flows through a converging-diverging nozzle. The throat area is 3 cm- and the exit area is 6 cm. A normal shock appears, for which the downstream (region 2) Mach number (M2) is 0.6405. Reservoir Throat (A = 3 cm (a) What is the Mach number (M]) upstream of the shock? 350K, 500 kPa (abs) (b) What is the area where the...
Normal Shock Nozzle Exit (4, -6 cm? Back pressure Air from a reservoir at 350 K and 500 kPa, flows through a converging-diverging nozzle. The throat area is 3 cm- and the exit area is 6 cm. A normal shock appears, for which the downstream (region 2) Mach number (M2) is 0.6405. Reservoir Throat (A = 3 cm (a) What is the Mach number (M]) upstream of the shock? 350K, 500 kPa (abs) (b) What is the area where the...
Normal Shock Nozzle Exit (4, -6 cm? Back pressure Air from a reservoir at 350 K and 500 kPa, flows through a converging-diverging nozzle. The throat area is 3 cm- and the exit area is 6 cm. A normal shock appears, for which the downstream (region 2) Mach number (M2) is 0.6405. Reservoir Throat (A = 3 cm (a) What is the Mach number (M]) upstream of the shock? 350K, 500 kPa (abs) (b) What is the area where the...
Air enters an adiabatic nozzle at 500 kPa and a temperature of 200 °C with a velocity of 100 m/s. It exits the nozzle at a pressure of 100 kPa. Assuming that the expansion through the nozzle occurs reversibly, determine (a) the exit temperature and (b) the exit velocity of the air. The specific heats of air can be assumed to be constant with Cv = 0.742 kJ/kg oC and Cp = 1.029 kJ/kg oC.
Air enters a nozzle in a jet engine at a pressure of 500 kPa, temperature of 650K, and velocity of 75 m/s. The air exits the nozzle at a pressure of 100 kPa, and the isentropic nozzle efficiency is 82%. a). Determine the velocity of the air at the nozzle exit. b). Determine the rate of entropy generation in the nozzle per kg of air flowing in kW/kgK
Problem 1 (20 points) Air at 35°C, 105 kPa, flows in a 100 mm x 150 mm rectangular duct in a heating system. The volumet flow rate is 0.015 m'/s. What is the velocity of the air flowing in the duct and what is the mass flow rat Here, air behaves as an ideal gas (p v R T). Gas constant, R of air is 287 J/kg K
Given: Air at 20 C and 100 kPa enters the first stage, and it exits the third stage at 6400 kPa. An inter-cooler is used to cool the air between the stages back to 20°C. The compression work per unit mass of air is γ-1 where γ is the specific heat ratio, R is the gas constant, subscript "i" denotes the initial (atmospheric) conditions, and subscript "o" signifies the exiting conditions. Find: intermediate pressures so that the total work is...
Air flows from a reservoir where P 300 kPa and T 500 K through a throat to section 1 in Fig. 3.4, where there is a normal shock wave. Compute (a) Pi (b) P2 (c) Po2 (d) A 2 (e) Po3 (f)A* (g) P3 (h) To3 Air Reservoir Po 300 kPa 12 13 T01-500 K | Shock P100 psia
Air flows from a reservoir where P 300 kPa and T 500 K through a throat to section 1 in Fig....