Thermodynamics
Air Enters an air turbine at a pressure of 5 bar and temperature of 65°Сata steady velocity of 45 m/s. The air leaves the turbine at a pressure of 3.2 bar and temperature of 5°C and a velocity of 150 m/s. Neglecting change in elevation, determine the magnitude and direction of heat transfer per kg of airflow of the shaft output is 54 kJ/kg of air.
Homework Answers
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...
A) Steam enters a horizontal pipe operating at steady state with a specific enthalpy of 2,663 kJ/...
A) Steam enters a horizontal pipe operating at steady state with a specific enthalpy of 2,663 kJ/kg and a mass flow rate of 0.1 kg/s. At the exit, the specific enthalpy is 1,531 kJ/kg. If there is no significant change in kinetic energy from inlet to exit, determine the rate of heat transfer between the pipe and its surroundings, in kW. B) Refrigerant 134a enters a horizontal pipe operating at steady state at 40°C, 3.1 bar and a velocity of...
A gas turbine receives air at temperature T1 = 827 °C and specific volume v, -0.1...
A gas turbine receives air at temperature T1 = 827 °C and specific volume v, -0.1 m®/kg. Air exits the turbine at P2 = 3 bar and T2 = 450 °C. The volumetric flow rate of air at the inlet is 0.5 m/s. The power output on the shaft is 1900 kW. Determine: The pressure of air at the inlet (pa) in kPa [2 marks] b) The mass flow rate in kg/s [1 mark] c) Find the rate of heat...
5-30 Air enters an adiabatic nozzle steadily at 300 kPa, 200°C, and 30 m/s and leaves...
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...
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...
I need question 4 thermodynamics ll 1-v diagram. Problem (4) team enters a turbine operating on...
I need question 4 thermodynamics
ll 1-v diagram. Problem (4) team enters a turbine operating on SSSF process with mass flow turbine develops a power out put of 100 K temperature is 400 °C, and the velocity is 10 m/s. At the e quality is 0.9, and the velocity is 50 m/s. Determine the rate of heat transfer from the turbine (KW). (10 marks) rate of 4600 kg/hr. The W. At the inlet, the pressure is 6 MPa, the ure...
2. A gas turbine power plant operating at a steady state consists of a compressor, a...
2. A gas turbine power plant operating at a steady state consists of a compressor, a heat exchanger, and a turbine. Air enters the compressor with a mass flow rate of 3.8 kg/s at 0.95 bar, 27 °C and exists the turbine at 0.95 bar, 452 °C. Heat transfer to the fluid at the heat exchanger occurs at an average of 537 °C. Other parameters are To = 300 K, po = 0.95 bar, and Wnet = 0.8 MW. The...
1. A steam turbine has an inlet of 2 kg/s water at 1000 kPa and 350...
1. A steam turbine has an inlet of 2 kg/s water at 1000 kPa and 350 °C with a velocity of 15 m/s. The exit is at 100 kPa, 150 °C, and very low velocity. Determine the power produced. 2. A small expander (a turbine with a heat transfer) has 0.05 kg helium entering at 1000 kPa, 550 K, and it leaves at 250 kPa, 300 K. The power output on the shaft is measured at 55 kW. Determine the...
Mutah University Faculty of Eng mies I Prof. M. Abu-Zaid Exam. 2 Date: 20-12-2018 Problem ()...
Mutah University Faculty of Eng mies I Prof. M. Abu-Zaid Exam. 2 Date: 20-12-2018 Problem () Steam enters a turbine with a mass flow rate o turbine develops a power of 1000 KW. At the inlet the pr MPa, the temperature is 400 °C, and the veloeity is exit, the pressure is 10 KPa, the quality is 0.9, and the velocity is (8 marks) pressure is 6 At the 10 m/s. m/s. Determine the rate of heat transfer to the...
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...
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...
A gas turbine receives air at temperature T1 = 827 °C and specific volume v, -0.1 m®/kg. Air exits the turbine at P2 = 3 bar and T2 = 450 °C. The volumetric flow rate of air at the inlet is 0.5 m/s. The power output on the shaft is 1900 kW. Determine: The pressure of air at the inlet (pa) in kPa [2 marks] b) The mass flow rate in kg/s [1 mark] c) Find the rate of heat...
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...
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...
I need question 4 thermodynamics
ll 1-v diagram. Problem (4) team enters a turbine operating on SSSF process with mass flow turbine develops a power out put of 100 K temperature is 400 °C, and the velocity is 10 m/s. At the e quality is 0.9, and the velocity is 50 m/s. Determine the rate of heat transfer from the turbine (KW). (10 marks) rate of 4600 kg/hr. The W. At the inlet, the pressure is 6 MPa, the ure...
2. A gas turbine power plant operating at a steady state consists of a compressor, a heat exchanger, and a turbine. Air enters the compressor with a mass flow rate of 3.8 kg/s at 0.95 bar, 27 °C and exists the turbine at 0.95 bar, 452 °C. Heat transfer to the fluid at the heat exchanger occurs at an average of 537 °C. Other parameters are To = 300 K, po = 0.95 bar, and Wnet = 0.8 MW. The...
1. A steam turbine has an inlet of 2 kg/s water at 1000 kPa and 350 °C with a velocity of 15 m/s. The exit is at 100 kPa, 150 °C, and very low velocity. Determine the power produced. 2. A small expander (a turbine with a heat transfer) has 0.05 kg helium entering at 1000 kPa, 550 K, and it leaves at 250 kPa, 300 K. The power output on the shaft is measured at 55 kW. Determine the...
Mutah University Faculty of Eng mies I Prof. M. Abu-Zaid Exam. 2 Date: 20-12-2018 Problem () Steam enters a turbine with a mass flow rate o turbine develops a power of 1000 KW. At the inlet the pr MPa, the temperature is 400 °C, and the veloeity is exit, the pressure is 10 KPa, the quality is 0.9, and the velocity is (8 marks) pressure is 6 At the 10 m/s. m/s. Determine the rate of heat transfer to the...
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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