A gas with cp = 0.950 kJ/kg-K enters an insulated nozzle at 30oC and a velocity...
A gas with cp = 0.950 kJ/kg-K enters an insulated nozzle at 30oC and a velocity of 8 m/s. The gas exits at a velocity of 100 m/s. Assuming constant specific heats and ideal gas behavior, what is the exit temperature of the gas?
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A gas with cp = 0.950 kJ/kg-K enters an insulated nozzle at 30oC
and a velocity...
Air enters an adiabatic nozzle at 500 kPa and a temperature of 200 °C with a...
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.
Argon enters an insulated nozzle at 280 kPa, 1300 K, 10 m/s and exits at 645...
Argon enters an insulated nozzle at 280 kPa, 1300 K, 10 m/s and exits at 645 m/s. Assume argon is an ideal gas and has a constant specific heat. Determine a) The exit temperature of the argon under the actual process (K). b) The ideal exit temperature of the argon (K) under the isentropic process if the isentropic efficiency of the nozzle is 90 percent. c) The exit pressure of the argon (kPa). d) The amount of specific entropy generation...
Air enters a well-insulated nozzle at 400 m/s, 7 kPa, and 417°C and exits at 700...
Air enters a well-insulated nozzle at 400 m/s, 7 kPa, and 417°C and exits at 700 m/s. The nozzle inlet diameter is 0.2 m. Assuming ideal gas behavior, calculate a) the mass flow rate of the air. Then, determine the exit temperature of the air two ways: b) using the air table (A-17, which automatically accounts for the variation of specific heat with temperature); and c) assuming constant specific heats at the inlet temperature of 417°C. i he comatn speche...
Refrigerant 134a enters a well-insulated nozzle at 14 bar, 60°C, with a velocity of 40 m/s...
Refrigerant 134a enters a well-insulated nozzle at 14 bar, 60°C, with a velocity of 40 m/s and exits at 1.2 bar with a velocity of 460 m/s. For steady-state operation, and neglecting potential energy effects, determine: (a) the exit temperature, in K.
Assume that you have a nozzle, with air entering at 300 kPa and 67 C with...
Assume that you have a nozzle, with air entering at 300 kPa and 67 C with a velocity of 60 m/s. The air exits the nozzle at 90 kPa and 330m/s. Do NOT make an adiabatic assumption. Instead, assume that the heat losses from the nozzle to the surroundings are 3.2 kJ/kg. The surroundings are at 20 C. Assume that air is an ideal gas with variable specific heats .a) Find the exit temperature. b) Find the entropy change for...
fluids qusion 3) Air enters an isentropic nozzle at 360 kPa, 8 m/sec and 540 K....
fluids qusion
3) Air enters an isentropic nozzle at 360 kPa, 8 m/sec and 540 K. The nozzle exit pressure is 90 kPa. Calculate the temperature and velocity of the airflow at the nozzle exit using a) Exact analysis (variable specific heats) b) Approximate analysis (constant specific heats; assume that specific heat ratio (k) for air is 141
Air flows through a converging-diverging nozzle/diffuser. Assuming isentropic flow, air as an ideal gas, and constant...
Air flows through a converging-diverging nozzle/diffuser. Assuming isentropic flow, air as an ideal gas, and constant specific heats determine the state at several locations in the system. Solve using equations rather than with the tables. Note: The specific heat ratio and gas constant for air are given as k=1.4 and R-0287 kJ/kg-K respectively --Given Values-- Inlet Temperature: TI (K) 349 Inlet pressure: Pl (kPa) 460 Inlet Velocity: V1 (m/s) 73 Area at nozzle inlet: Al (cmA2) 8.19 Throat area: A...
Air enters an isothermal nozzle at a temperature of 300 K, and a velocity of 10...
Air enters an isothermal nozzle at a temperature of 300 K, and a velocity of 10 m/s. The nozzle is very poorly insulated, causing a stray heat transfer rate of 10 kW into the system. The outlet of the nozzle is exposed to an ambient pressure of 1 bar and is choked (Mach = 1). If the area ratio of the nozzle (A, /A2) is 5, what is: The velocity of the nozzle outlet, in [m/s], if the specific heat...
constant specife heats An ideal gas wit of cp .1 kJ/(kg K) and c 0.75 kJ/(kg...
constant specife heats An ideal gas wit of cp .1 kJ/(kg K) and c 0.75 kJ/(kg K) is contained in the piston-cylinder device shown. Initially, the vol- ume is 50 cm3 and the temperature is 20°C. How much heat must be added to double the volume if the final pressure and temperature are 400 kPa and 1000 K respectively. g·K) and Cu- Ideal gas Linear spring
THERMO: QUESTION 5 Saturated water vapor at 12.92 bar enters an insulated throttling valve which drops...
THERMO: QUESTION 5 Saturated water vapor at 12.92 bar enters an insulated throttling valve which drops the pressure to 1.50 bar. Determine the temperature (oC) of the steam at the exit of the valve. Note: Give your answer to two decimal places. QUESTION 6 Air enters an adiabatic diffuser at 320 K and 100 kPa with a velocity of 665.4 m/s. At the diffuser exit, the temperature is 520 K. Determine the velocity (m/s) at the exit of the diffuser....
Air enters a well-insulated nozzle at 400 m/s, 7 kPa, and 417°C and exits at 700 m/s. The nozzle inlet diameter is 0.2 m. Assuming ideal gas behavior, calculate a) the mass flow rate of the air. Then, determine the exit temperature of the air two ways: b) using the air table (A-17, which automatically accounts for the variation of specific heat with temperature); and c) assuming constant specific heats at the inlet temperature of 417°C. i he comatn speche...
fluids qusion
3) Air enters an isentropic nozzle at 360 kPa, 8 m/sec and 540 K. The nozzle exit pressure is 90 kPa. Calculate the temperature and velocity of the airflow at the nozzle exit using a) Exact analysis (variable specific heats) b) Approximate analysis (constant specific heats; assume that specific heat ratio (k) for air is 141
Air flows through a converging-diverging nozzle/diffuser. Assuming isentropic flow, air as an ideal gas, and constant specific heats determine the state at several locations in the system. Solve using equations rather than with the tables. Note: The specific heat ratio and gas constant for air are given as k=1.4 and R-0287 kJ/kg-K respectively --Given Values-- Inlet Temperature: TI (K) 349 Inlet pressure: Pl (kPa) 460 Inlet Velocity: V1 (m/s) 73 Area at nozzle inlet: Al (cmA2) 8.19 Throat area: A...
Air enters an isothermal nozzle at a temperature of 300 K, and a velocity of 10 m/s. The nozzle is very poorly insulated, causing a stray heat transfer rate of 10 kW into the system. The outlet of the nozzle is exposed to an ambient pressure of 1 bar and is choked (Mach = 1). If the area ratio of the nozzle (A, /A2) is 5, what is: The velocity of the nozzle outlet, in [m/s], if the specific heat...
constant specife heats An ideal gas wit of cp .1 kJ/(kg K) and c 0.75 kJ/(kg K) is contained in the piston-cylinder device shown. Initially, the vol- ume is 50 cm3 and the temperature is 20°C. How much heat must be added to double the volume if the final pressure and temperature are 400 kPa and 1000 K respectively. g·K) and Cu- Ideal gas Linear spring
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