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3. Air is used as the working fluid in a simple ideal Brayton cycle that has...
A simple ideal Brayton cycle has a pressure ratio of 6. The working fluid enters the...
A simple ideal Brayton cycle has a pressure ratio of 6. The working fluid enters the compressor at a pressure of 100 kPa and a temperature of 300 K. The temperature at the end of the combustion process is 1273 K. Applying the cold air-standard assumption: a) Draw the P-v and T-s process diagrams for the cycle. b) Calculate the specific compressor and turbine work. c) Determine the thermal efficiency of the cycle.
thermodynamic question.please just solve 9-84 9-82 A simple Brayton cycle using air as the working fluid has a pressure ratio of 10. The minimum c and maximum temperatures in the cycle are 295 an...
thermodynamic question.please just solve 9-84
9-82 A simple Brayton cycle using air as the working fluid has a pressure ratio of 10. The minimum c and maximum temperatures in the cycle are 295 and 1240 K. Assuming an isentropic efficiency of 83 percent for the com pressor and 87 percent for the turbine, determine (a) the air temperature at the turbine exit, (b) the net work output, and (c) the thermal efficiency. 9-84 Repeat Prob. 9-82 using constant specific heats...
(6) Gas Refrigeration Air is the working fluid of a Brayton refrigeration cycle with a compressor...
(6) Gas Refrigeration Air is the working fluid of a Brayton refrigeration cycle with a compressor pressure ratio of 3. At the beginning of the compression, the temperature Ti = 270 K and pressure P1 = 140 kPa. The turbine inlet temperature is T3 = 320 K. You may assume both heat exchangers operate without pressure losses. Draw a T-s diagram for this ideal cycle. If the volumetric flow rate at State 3 is 0.4 m3/s, what is the mass...
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
A Brayton cycle operates in air with a pressure ratio of 10. All components are ideal....
A Brayton cycle operates in air with a pressure ratio of 10. All components are ideal. The temperature at the inlet to the compressor is 400 K and the temperature at the inlet to the turbine is 2000 K. The kinetic energy at the inlet and exit of all components can be neglected. Assume that the working fluid has a constant cp=1000 J/kgK, and a specific ration of gamma=4. What is the compression work per unit mass? What is the...
Air enters the compressor of an ideal air standard Brayton cycle at 195 kPakPa, 298 KK,...
Air enters the compressor of an ideal air standard Brayton cycle at 195 kPakPa, 298 KK, with a volumetric flow rate of 7 m3/sm3/s. The compressor pressure ratio is 8. The turbine inlet temperature is 1400 KK. The compressor has an efficiency of 90%% and the turbine has an efficiency of 75%%. A) Determine the thermal efficiency (ηth,Braytonηth,Brayton). B) Determine the net power output (W˙netW˙net). C) Determine the back work ratio.
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...
2. Air enters the compressor of an ideal air-standard Brayton cycle at 100 kPa, 300 K,...
2. Air enters the compressor of an ideal air-standard Brayton cycle at 100 kPa, 300 K, with a volumetnc flow rate of 20 m'/s. The turbine inlet temperature is 1500 K. For compressor pressure ratios of 20 find a) the heat addition and rejection in kW b) the net power developed, in kW c) the thermal efficiency of the cycle d) the back work ratio.
6. Repeat Problem 5, but use constant specific heats at the average temperature of (900 K+310...
6. Repeat Problem 5, but use constant specific heats at the average temperature of (900 K+310 K)2. This will give results that should be comparable (but not identical) to those of Problem 5. 5. A gas-turbine power plant operates on the simple Brayton cycle with air as the working fluid and delivers 32 MW of power. The minimum and maximum temperatures in the cycle are 310 and 900 K, and the pressure of the air at the compressor exit is...
A simple Brayton cycle using air as the working fluid has a pressure ratio of 10....
A simple Brayton cycle using air as the working fluid has a pressure ratio of 10. The minimum and maximum temperatures in the cycle are 295 and 1240K. Assuming an isentropic efficiency of 83 percent for the compressor and 87 percent for the turbine. Determine the second law efficiencies of the compressor, the turbine, and the combustion chamber.
thermodynamic question.please just solve 9-84
9-82 A simple Brayton cycle using air as the working fluid has a pressure ratio of 10. The minimum c and maximum temperatures in the cycle are 295 and 1240 K. Assuming an isentropic efficiency of 83 percent for the com pressor and 87 percent for the turbine, determine (a) the air temperature at the turbine exit, (b) the net work output, and (c) the thermal efficiency. 9-84 Repeat Prob. 9-82 using constant specific heats...
(6) Gas Refrigeration Air is the working fluid of a Brayton refrigeration cycle with a compressor pressure ratio of 3. At the beginning of the compression, the temperature Ti = 270 K and pressure P1 = 140 kPa. The turbine inlet temperature is T3 = 320 K. You may assume both heat exchangers operate without pressure losses. Draw a T-s diagram for this ideal cycle. If the volumetric flow rate at State 3 is 0.4 m3/s, what is the mass...
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...
2. Air enters the compressor of an ideal air-standard Brayton cycle at 100 kPa, 300 K, with a volumetnc flow rate of 20 m'/s. The turbine inlet temperature is 1500 K. For compressor pressure ratios of 20 find a) the heat addition and rejection in kW b) the net power developed, in kW c) the thermal efficiency of the cycle d) the back work ratio.
6. Repeat Problem 5, but use constant specific heats at the average temperature of (900 K+310 K)2. This will give results that should be comparable (but not identical) to those of Problem 5. 5. A gas-turbine power plant operates on the simple Brayton cycle with air as the working fluid and delivers 32 MW of power. The minimum and maximum temperatures in the cycle are 310 and 900 K, and the pressure of the air at the compressor exit is...
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