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Gas enters an adiabatic turbine with enthalpy 3456 kJ/kg and velocity 100 m/s. It leaves the...
please solve the two Remaining Time: 1 hour, 14 minutes, 19 seconds. Question Completion Status: QUESTIONS...
please solve the two
Remaining Time: 1 hour, 14 minutes, 19 seconds. Question Completion Status: QUESTIONS Gas enters an adiabatic turbine with enthalpy 3456 kJ/kg and velocity 100 m/s. It leaves the turbine with enthalpy 2675 kike and velocity 200 m/s. Had the flow been isentropic, the enthalpy would be 2315 kJ/kg at exit. Assume (V25.12). Determine the following The work done (in kJ/kg) QUESTION 6 Carbon dioxide at 372 K is flowing in a duct at a velocity of...
Combustion gases enter an adiabatic gas turbine at 800oC and 900 kPa and leave at 100...
Combustion gases enter an adiabatic gas turbine at 800oC and 900 kPa and leave at 100 kPa with a low velocity. Treating the combustion gases as air (R = 0.2870 kPa*m3/kg, cp = 1.005 kJ/kg*K, k = 1.4) and assuming an isentropic efficiency of 82 percent, determine the work output of the turbine and the exit temperature.
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...
Steam with the mass flow rate of 0.75 kg/s enters an adiabatic turbine steadily at 19 MPa, 600°C and 150 m/s
Steam with the mass flow rate of 0.75 kg/s enters an adiabatic turbine steadily at 19 MPa, 600°C and 150 m/s, and leaves at 150 kPa and 350 m/s. The isentropic efficiency of the turbine is 85%. Neglect potential energy. (I) Determine the exit temperature of the steam, and its quality (if saturated mixture) (ii) Calculate the actual power output of the turbine, in kW (iii) Illustrate a T-s diagram with respect to saturation lines for the isentropic process by clearly indicating all pressure, temperature,...
A steam power plant design consists of an ideal Rankine cycle with regeneration. Steam enters Turbine...
A steam power plant design consists of an ideal Rankine cycle with regeneration. Steam enters Turbine 1 at P1 and T1 at the rate of m1 and exits at P2. A fraction (y') of the steam exiting Turbine 1 is diverted to a closed feedwater heater while the remainder enters Turbine 2. A portion (y'') of the steam exiting Turbine 2 at P3 is diverted to an open feedwater heater while the remainder enters Turbine 3. The exit of Turbine...
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...
10,000 kg/hr of air at 500*C and 40 atm through an adiabatic turbine at 250 m/s....
10,000 kg/hr of air at 500*C and 40 atm through an adiabatic turbine at 250 m/s. the air exits the turbine at 2 atm and 50 m/s. The turbine needs to produce 1 MW of work. The heat capacity of air is 1 kJ/kg-K. - is this an open or closed system? - choose all the terms of energy balance equation: internal energy change, KE change, PE change, heat, shaft work, enthalpy change, pressure change over density, friction - what...
Water enters a diffuser at 80°C and 500 kPa with velocity of 100 m/s. It leaves...
Water enters a diffuser at 80°C and 500 kPa with velocity of 100 m/s. It leaves the diffuser at 150°C and 700 kPa. The ratio of the inlet to exit area (A/A) is 0.5. Calculate the heat transfer to the water during the process in kJ/kg. [10 Marks)
Water enters a diffuser at 80°C and 500 kPa with velocity of 100 m/s. It leaves...
Water enters a diffuser at 80°C and 500 kPa with velocity of 100 m/s. It leaves the diffuser at 150°C and 700 kPa. The ratio of the inlet to exit area (A/A2) is 0.5. Calculate the heat transfer to the water during the process in kJ/kg. [10 Marks]
I need your help solving this thermodynamics problem please: Question Completion Status: QUESTION 1 20 points...
I
need your help solving this thermodynamics problem please:
Question Completion Status: QUESTION 1 20 points Save Ans The heat-pump system shown is designed to provide water-heating and space-cooling. The system includes a heat exchanger to subcool the R134a refrigerant at the outlet of the water heater while heating the refrigerant at the outlet of the evaporator. Given the following data, determine the enthalpy at each station, 1 through 6, using the R134a property tables (click here). Type your answers...
please solve the two
Remaining Time: 1 hour, 14 minutes, 19 seconds. Question Completion Status: QUESTIONS Gas enters an adiabatic turbine with enthalpy 3456 kJ/kg and velocity 100 m/s. It leaves the turbine with enthalpy 2675 kike and velocity 200 m/s. Had the flow been isentropic, the enthalpy would be 2315 kJ/kg at exit. Assume (V25.12). Determine the following The work done (in kJ/kg) QUESTION 6 Carbon dioxide at 372 K is flowing in a duct at a velocity of...
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...
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...
Water enters a diffuser at 80°C and 500 kPa with velocity of 100 m/s. It leaves the diffuser at 150°C and 700 kPa. The ratio of the inlet to exit area (A/A) is 0.5. Calculate the heat transfer to the water during the process in kJ/kg. [10 Marks)
Water enters a diffuser at 80°C and 500 kPa with velocity of 100 m/s. It leaves the diffuser at 150°C and 700 kPa. The ratio of the inlet to exit area (A/A2) is 0.5. Calculate the heat transfer to the water during the process in kJ/kg. [10 Marks]
I
need your help solving this thermodynamics problem please:
Question Completion Status: QUESTION 1 20 points Save Ans The heat-pump system shown is designed to provide water-heating and space-cooling. The system includes a heat exchanger to subcool the R134a refrigerant at the outlet of the water heater while heating the refrigerant at the outlet of the evaporator. Given the following data, determine the enthalpy at each station, 1 through 6, using the R134a property tables (click here). Type your answers...
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