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Consider a closed Brayton cycle heat-engine. Air is compressed from 300K, 100 kPa to 580K, 700...
Problem 1 A Brayton-cycle power plant takes in air at 100 kPa and 26.7°C. Compression in two stag...
please solve by exact analysis
Problem 1 A Brayton-cycle power plant takes in air at 100 kPa and 26.7°C. Compression in two stages with intercooling, and each stage has a pressure ratio of 2.38 and an efficiency of 84%, with intercooling to 26.7°C The maximum temperature of the cycle is 676.7°C Turbine efficiency is 82%. The turbine and compressor are assumed adiabatic. A regenerator heats the compressed air to 326.7°C before sending it to the combustor. Calculate (a) the back...
Air enters the compressor of a cold air-standard Brayton cycle with regeneration at 100 kPa, 300...
Air enters the compressor of a cold air-standard Brayton cycle with regeneration at 100 kPa, 300 K, with a volume flow rate of 5 m3/s. The compressor pressure ratio is 8, and the turbine inlet temperature is 1400 K. The turbine and compressor each have isentropic efficiencies of 80% and the regenerator effectiveness is 80%. For the air, k = 1.4 and the ambient temperature is T0 = 300 K. -Determine the thermal efficiency of the cycle. -determine the back...
An ideal Brayton power generation cycle draws in air at 100 kPa and 20 °C. The...
An ideal Brayton power generation cycle draws in air at 100 kPa and 20 °C. The compressor increases the pressure to 500 kPa. The burner adds heat equal to 500 kJ/kg. You can use air standard analysis and assume constant specific heats. (a) (5 pts) find the temperature after the compressor (b) (5 pts) find the specific compressor work (c) (5 pts) find the temperature after the burner (d) (5 pts) find the turbine work (e) (5 pts) find the...
in Problem II: The Brayton cycle is an idealized gas turbine power cycle that can be...
in Problem II: The Brayton cycle is an idealized gas turbine power cycle that can be modeled through the four reversible steady flow devices shown in the diagram. Use air as the working fluid with variable specific heats. Heat If the thermal source is at 700°C, and the thermal sink is at 35℃ what is the maximum thermal efficiency for a cycle operating between these two thermal reservoirs? (5 pts) A. CompressorTurbine B. In the real cycle, air enters the...
2. Air enters the compressor of a regenerative gas turbine engine at 310 K and 100...
2. Air enters the compressor of a regenerative gas turbine engine at 310 K and 100 kPa, where it is compressed to 900 kPa and 650 K. The regenerator has an effectiveness of 80%and the air enters the turbine at 1400 K. For a turbine isentropic efficiency of 90%, , then: (a) Sketch the T-s diagram of the cycle. (b) Determine the amount of heat transfer in the regenerator (c) Calculate the thermal efficiency of the cycle (d) Determine the...
Air enters the compressor of an ideal air-standard Brayton cycle at 100 kPa, 300 K, with...
Air enters the compressor of an ideal air-standard Brayton cycle at 100 kPa, 300 K, with a volumetric flow rate of 7.5 m3/s. The compressor pressure ratio is 10. The turbine inlet temperature is 1400 K. Determine the following: The thermal efficiency of the cycle The back work ratio The net power developed in kW
Air enters the compressor of a regenerative air-standard Brayton cycle with a volumetric flow rate of...
Air enters the compressor of a regenerative air-standard Brayton cycle with a volumetric flow rate of 100 m3/s at 0.8 bar, 280 K. The compressor pressure ratio is 20, and the maximum cycle temperature is 2100 K. For the compressor, the isentropic efficiency is 92% and for the turbine the isentropic efficiency is 95%. For a regenerator effectiveness of 86%, determine: (a) the net power developed, in MW. (b) the rate of heat addition in the combustor, in MW. (c)...
Problem 9.106 using varaiable specific heat assumption (Non-Ideal Regenerative Brayton Cycle) 9-105 A gas turbine for...
Problem 9.106 using varaiable specific heat assumption
(Non-Ideal Regenerative Brayton Cycle)
9-105 A gas turbine for an automobile is designed with a regenerator. Air enters the compressor of this engine at 100 kPa and 30°C. The compressor pressure ratio is 8; the maximum cycle temperature is 800°C; and the cold airstream leaves the regenerator 10°C cooler than the hot airstream at the inlet of the regenerator. Assuming both the compressor and the tur- bine to be isentropic, determine the rates...
A Brayton cycle operates with air with minimum and maximum temperatures of 27 ºC and 727...
A Brayton cycle operates with air with minimum and maximum temperatures of 27 ºC and 727 ºC. It is designed so that the maximum cycle pressure is 2000 kPa and the minimum cycle temperature is 100 kPa. The isentropic efficiencies of the turbine and compressor are both 90 percent. Using constant room-temperature specific heats, (a) determine the net work produced per unit mass of air each time this cycle is executed, in kJ/kg. (b) Determine the cycle's thermal efficiency. Remember...
A simple ideal Brayton cycle operates with air with minimum and maximum temperatures of 27°C and...
A simple ideal Brayton cycle operates with air with minimum and
maximum temperatures of 27°C and 727°C. It is designed so that the
maximum cycle pressure is 2000 kPa and the minimum cycle pressure
is 100 kPa. The isentropic efficiency of the turbine is 96 percent.
Determine the net work produced per unit mass of air each time this
cycle is executed and the cycle’s thermal efficiency. Use constant
specific heats at room temperature. The properties of air at room...
please solve by exact analysis
Problem 1 A Brayton-cycle power plant takes in air at 100 kPa and 26.7°C. Compression in two stages with intercooling, and each stage has a pressure ratio of 2.38 and an efficiency of 84%, with intercooling to 26.7°C The maximum temperature of the cycle is 676.7°C Turbine efficiency is 82%. The turbine and compressor are assumed adiabatic. A regenerator heats the compressed air to 326.7°C before sending it to the combustor. Calculate (a) the back...
An ideal Brayton power generation cycle draws in air at 100 kPa and 20 °C. The compressor increases the pressure to 500 kPa. The burner adds heat equal to 500 kJ/kg. You can use air standard analysis and assume constant specific heats. (a) (5 pts) find the temperature after the compressor (b) (5 pts) find the specific compressor work (c) (5 pts) find the temperature after the burner (d) (5 pts) find the turbine work (e) (5 pts) find the...
in Problem II: The Brayton cycle is an idealized gas turbine power cycle that can be modeled through the four reversible steady flow devices shown in the diagram. Use air as the working fluid with variable specific heats. Heat If the thermal source is at 700°C, and the thermal sink is at 35℃ what is the maximum thermal efficiency for a cycle operating between these two thermal reservoirs? (5 pts) A. CompressorTurbine B. In the real cycle, air enters the...
2. Air enters the compressor of a regenerative gas turbine engine at 310 K and 100 kPa, where it is compressed to 900 kPa and 650 K. The regenerator has an effectiveness of 80%and the air enters the turbine at 1400 K. For a turbine isentropic efficiency of 90%, , then: (a) Sketch the T-s diagram of the cycle. (b) Determine the amount of heat transfer in the regenerator (c) Calculate the thermal efficiency of the cycle (d) Determine the...
Problem 9.106 using varaiable specific heat assumption
(Non-Ideal Regenerative Brayton Cycle)
9-105 A gas turbine for an automobile is designed with a regenerator. Air enters the compressor of this engine at 100 kPa and 30°C. The compressor pressure ratio is 8; the maximum cycle temperature is 800°C; and the cold airstream leaves the regenerator 10°C cooler than the hot airstream at the inlet of the regenerator. Assuming both the compressor and the tur- bine to be isentropic, determine the rates...
A simple ideal Brayton cycle operates with air with minimum and
maximum temperatures of 27°C and 727°C. It is designed so that the
maximum cycle pressure is 2000 kPa and the minimum cycle pressure
is 100 kPa. The isentropic efficiency of the turbine is 96 percent.
Determine the net work produced per unit mass of air each time this
cycle is executed and the cycle’s thermal efficiency. Use constant
specific heats at room temperature. The properties of air at room...
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