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 temperature are cp = 1.005 kJ/kg·K and k = 1.4.
A: The net work produced per unit mass of air in kJ/kg.
B: The thermal efficiency.
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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 27C and...
A simple Ideal Brayton cycle operates with air with minimum and maximum temperatures of 27C 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 78 percent. Determine the network 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 temperature...
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...
9 Required information A Brayton cycle with a pressure ratio of 15 operates with air entering...
9 Required information A Brayton cycle with a pressure ratio of 15 operates with air entering the compressor at 66 kPa and O°C, and the turbine at 600℃ The properties of air at room temperature are co-1.005 kJ/kg-K and k = 1.4. Oin net CompressorT Turbine Qout Calculate the net specific work produced by this cycle treating the air as an ideal gas with constant specific heats The net specific work produced by this cycle is 165kJkg.
An aircraft engine operates on a simple ideal Brayton cycle with a pressure ratio rp of...
An aircraft engine operates on a simple ideal Brayton cycle with
a pressure ratio rp of 9. Heat is added to the cycle at a rate of
490 kW; air passes through the engine at a rate of 1.1 kg/s; and
the air at the beginning of the compression is at P1 = 71 kPa and
T1 = 0 oC. Use constant specific heats at room temperature. The
properties of air at room temperature are cp =1.005 kJ/kg.K and k...
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...
1. A regenerative Brayton cycle operates over a pressure ratio of 8. The minimum and maximum...
1. A regenerative Brayton cycle operates over a pressure ratio of 8. The minimum and maximum temperatures in the cycle are 310 K and 1150 K, respectively. Assume an isentropic compressor efficiency of 75%, an isentropic turbine efficiency of 82%, and a regenerator effectiveness of 0.65. Using constant properties (Cp - 1.005 kJ/kgK, k = 1.4), determine: a) The T-s diagram for all processes including the isentropic processes b) The air temperature at the turbine exit c) The specific network...
Need help for this Brayton Cycle problem. Please help me 4. (30 marks) A gas-turbine power plant operates on the simple...
Need help for this Brayton Cycle problem.
Please help me
4. (30 marks) A gas-turbine power plant operates on the simple Brayton cycle between the pressure limits of 100 kPa and 800 kPa. The T-s diagram of this cycle is shown in Fig. 2. Air enters the compressor at 30°C and leaves at 330°C at a mass flow rate of 200 kg/s. The maximum cycle temperature is 1400 K. During operation of the cycle, the net power output is measured...
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...
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...
Consider a closed Brayton cycle heat-engine. Air is compressed from 300K, 100 kPa to 580K, 700...
Consider a closed Brayton cycle heat-engine. Air is compressed from 300K, 100 kPa to 580K, 700 kPa. The air is heated at the rate of 950 kJ/kg before it enters the turbine. The isentropic efficiency of the turbine is 86%. Determine: a) the fraction of the turbine shaft power used to drive the compressor, and b) the thermal efficiency of the engine. Sketch the prooess on a T-s diagram. Do the calculation first with variable specific heats and then repeat...
A simple Ideal Brayton cycle operates with air with minimum and maximum temperatures of 27C 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 78 percent. Determine the network 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 temperature...
9 Required information A Brayton cycle with a pressure ratio of 15 operates with air entering the compressor at 66 kPa and O°C, and the turbine at 600℃ The properties of air at room temperature are co-1.005 kJ/kg-K and k = 1.4. Oin net CompressorT Turbine Qout Calculate the net specific work produced by this cycle treating the air as an ideal gas with constant specific heats The net specific work produced by this cycle is 165kJkg.
An aircraft engine operates on a simple ideal Brayton cycle with
a pressure ratio rp of 9. Heat is added to the cycle at a rate of
490 kW; air passes through the engine at a rate of 1.1 kg/s; and
the air at the beginning of the compression is at P1 = 71 kPa and
T1 = 0 oC. Use constant specific heats at room temperature. The
properties of air at room temperature are cp =1.005 kJ/kg.K and k...
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...
1. A regenerative Brayton cycle operates over a pressure ratio of 8. The minimum and maximum temperatures in the cycle are 310 K and 1150 K, respectively. Assume an isentropic compressor efficiency of 75%, an isentropic turbine efficiency of 82%, and a regenerator effectiveness of 0.65. Using constant properties (Cp - 1.005 kJ/kgK, k = 1.4), determine: a) The T-s diagram for all processes including the isentropic processes b) The air temperature at the turbine exit c) The specific network...
Need help for this Brayton Cycle problem.
Please help me
4. (30 marks) A gas-turbine power plant operates on the simple Brayton cycle between the pressure limits of 100 kPa and 800 kPa. The T-s diagram of this cycle is shown in Fig. 2. Air enters the compressor at 30°C and leaves at 330°C at a mass flow rate of 200 kg/s. The maximum cycle temperature is 1400 K. During operation of the cycle, the net power output is measured...
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...
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...
Consider a closed Brayton cycle heat-engine. Air is compressed from 300K, 100 kPa to 580K, 700 kPa. The air is heated at the rate of 950 kJ/kg before it enters the turbine. The isentropic efficiency of the turbine is 86%. Determine: a) the fraction of the turbine shaft power used to drive the compressor, and b) the thermal efficiency of the engine. Sketch the prooess on a T-s diagram. Do the calculation first with variable specific heats and then repeat...
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