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A turbojet powered aircraft is flying at 250 m/s where...
2. An aircraft with a single turbojet engine (with an inlet area of 1 m2) is...
2. An aircraft with a single turbojet engine (with an inlet area of 1 m2) is flying at cruising condition with a flight Mach number of 0.7. The ambient temperature and pressure are 250 K and 100 kPa, respectively. The engine compressor pressure ratio is 12, and the turbine inlet temperature is 1200 K. Assume all mechanical components are operating at isentropic condition and the specific heat can be considered a constant (throughout the entire engine) of 1 kJ/(kg K)....
A turbojet aircraft has its compressor rated at the pressure ratio of 10. Given that the aircraft...
A turbojet aircraft has its compressor rated at the pressure ratio of 10. Given that the aircraft flies with a velocity of 289 m/s at an altitude where the air is at a pressure of 29.5 kPa and temperature of-31.0·C. The air enters the compressor at 54 kg/s. The fuel used during the flight is rated to provide 39300 kJ of heat energy from every kilogram burnt and the temperature of the air entering the turbine is 1047.744 K. Calculate...
. A turbofan aircraft engine is flying at 720 km/h at an altitude of 6100 m,...
. A turbofan aircraft engine is flying at 720 km/h at an altitude of 6100 m, where the ambient conditions are 50 kPa and -12°C (a negative value). The pressure ratio across the compressor is 13, and the turbine inlet temperature (TIT) is 1330 K. Assuming ideal operation for all components and constant specific heats for the air at room temperature (cold air model). (a) Sketch the T-s diagram of the cycle, and determine: (b) The Mach number of the...
A turbojet engine consists of a diffuser, compressor, combustor, turbine and a converging nozzle. The engine...
A turbojet engine consists of a diffuser, compressor, combustor, turbine and a converging nozzle. The engine is operating on an aircraft flying at 260 m/s at an altitude where the air is at 61 kPa and -11 °C. The inlet diameter of this engine is 1.6 m; the thrust produced by the engine under ideal cruising conditions is 93,625 N; and the temperature at the turbine inlet is 750 °C. Assume constant specific heat values at room temperature, choked flow...
Problem-2 (200) Air at 30 kPa, 200 K, and 250 m/s enters a turbojet engine in...
Problem-2 (200) Air at 30 kPa, 200 K, and 250 m/s enters a turbojet engine in flight. The air mass flow rate is 28 kg/s. The compressor pressure ratio is 13, the turbine inlet temperature is 1460 K, and air exits the nozzle at 30 kPa. The diffuser and nozzle processes are isentropic, the compressor and turbine have isentropic efficiencies of 81% and 88%, respectively, and there is no pressure drop for flow through the combustor. Kinetic energy is negligible...
Q.4 Air at 26 kPa,230 K, and 220 m/s enters a turbojet engine in flight as...
Q.4 Air at 26 kPa,230 K, and 220 m/s enters a turbojet engine in flight as shown below. The mass flow rate of air is 25 kg/s, the compression pressure ratio is 11, inlet temperature to the turbine is 1400 K, and air exits the nozzle at 26 kPa. The diffuser and nozzle processes are isentropic, but the compressor and turbine have isentropic efficiencies of 85 and 90 percent, respectively and there is no pressure drop for flow through the...
You are asked to perform preliminary calculations to model the effect of the compressor compression ratio...
You are asked to perform preliminary calculations to model the effect of the compressor compression ratio on the performance of an aircraft powered by an ideal turbojet engine. The velocity of the aircraft is 280 m/s. The temperature and pressure of air entering the engine are 230 K and 40 kPa, respectively. The maximum temperature achieved in the combustion chamber is 1600 K a) Derive the set of equations necessary to calculate the propulsive efficiency of the aircraft as a...
please solve h to m .A-7 The gas turbine engines that are used on a military...
please solve h to m
.A-7 The gas turbine engines that are used on a military jet air plane likely consists of a diffuser, compressor, combustor, turbine, afterburmer, and nozzle that are arranged in series as shown in Figure 4.A-7(a) and flying with a velocity of 350 mph. The analysis will be carried out on a component-by component basis. Model the air as an ideal gas and assume that it has constant c and cp R 287.1 Ikg-K and c-1005...
A 1500 hp gas turbine is used to power a helicopter shaft. For the following conditions...
A 1500 hp gas turbine is used to power a helicopter shaft. For the following conditions Air inlet temperature of 27 C Compressor exit temperature of 320 C Combustor exit temperature of 1000 C Exhaust gas temperature of 550 C Inlet Pressure of 100 kPa Combustor Pressure of 800 kPa Using the Cold Air Standard Assumptions. Calculate the thermal efficiency of the gas turbine (in percent).
A 1500 hp gas turbine is used to power a helicopter shaft. For the following conditions...
A 1500 hp gas turbine is used to power a helicopter shaft. For the following conditions Air inlet temperature of 27 C Compressor exit temperature of 320 C Combustor exit temperature of 1000 C Exhaust gas temperature of 550 C Inlet Pressure of 100 kPa Combustor Pressure of 800 kPa Using the Cold Air Standard Assumptions. Calculate the thermal efficiency of the gas turbine (in percent).
2. An aircraft with a single turbojet engine (with an inlet area of 1 m2) is flying at cruising condition with a flight Mach number of 0.7. The ambient temperature and pressure are 250 K and 100 kPa, respectively. The engine compressor pressure ratio is 12, and the turbine inlet temperature is 1200 K. Assume all mechanical components are operating at isentropic condition and the specific heat can be considered a constant (throughout the entire engine) of 1 kJ/(kg K)....
A turbojet aircraft has its compressor rated at the pressure ratio of 10. Given that the aircraft flies with a velocity of 289 m/s at an altitude where the air is at a pressure of 29.5 kPa and temperature of-31.0·C. The air enters the compressor at 54 kg/s. The fuel used during the flight is rated to provide 39300 kJ of heat energy from every kilogram burnt and the temperature of the air entering the turbine is 1047.744 K. Calculate...
A turbojet engine consists of a diffuser, compressor, combustor, turbine and a converging nozzle. The engine is operating on an aircraft flying at 260 m/s at an altitude where the air is at 61 kPa and -11 °C. The inlet diameter of this engine is 1.6 m; the thrust produced by the engine under ideal cruising conditions is 93,625 N; and the temperature at the turbine inlet is 750 °C. Assume constant specific heat values at room temperature, choked flow...
Problem-2 (200) Air at 30 kPa, 200 K, and 250 m/s enters a turbojet engine in flight. The air mass flow rate is 28 kg/s. The compressor pressure ratio is 13, the turbine inlet temperature is 1460 K, and air exits the nozzle at 30 kPa. The diffuser and nozzle processes are isentropic, the compressor and turbine have isentropic efficiencies of 81% and 88%, respectively, and there is no pressure drop for flow through the combustor. Kinetic energy is negligible...
Q.4 Air at 26 kPa,230 K, and 220 m/s enters a turbojet engine in flight as shown below. The mass flow rate of air is 25 kg/s, the compression pressure ratio is 11, inlet temperature to the turbine is 1400 K, and air exits the nozzle at 26 kPa. The diffuser and nozzle processes are isentropic, but the compressor and turbine have isentropic efficiencies of 85 and 90 percent, respectively and there is no pressure drop for flow through the...
You are asked to perform preliminary calculations to model the effect of the compressor compression ratio on the performance of an aircraft powered by an ideal turbojet engine. The velocity of the aircraft is 280 m/s. The temperature and pressure of air entering the engine are 230 K and 40 kPa, respectively. The maximum temperature achieved in the combustion chamber is 1600 K a) Derive the set of equations necessary to calculate the propulsive efficiency of the aircraft as a...
please solve h to m
.A-7 The gas turbine engines that are used on a military jet air plane likely consists of a diffuser, compressor, combustor, turbine, afterburmer, and nozzle that are arranged in series as shown in Figure 4.A-7(a) and flying with a velocity of 350 mph. The analysis will be carried out on a component-by component basis. Model the air as an ideal gas and assume that it has constant c and cp R 287.1 Ikg-K and c-1005...
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