A stationary gas turbine has compressor and turbine efficiencies of 0.88 and 0.92, respectively, and a...
- A stationary gas turbine has compressor and turbine efficiencies of 0.88 and 0.92, respectively, and a compressor pressure ratio of 18. The inlet temperature is 20oC and the turbine inlet temperature is 1200oC.
(a) Determine the work of the compressor and the turbine, the net work, the turbine exit temperature, and the thermal efficiency.
(b) What is the heat rate?
(c) What is the heat rate of an air standard Brayton cycle with the
same compression ratio?
Homework Answers
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A stationary gas turbine has compressor and turbine
efficiencies of 0.88 and 0.92, respectively, and a...
A gas-turbine power plant operating on an ideal Brayton cycle has a pressure ratio of 9....
A gas-turbine power plant operating on an ideal Brayton cycle has a pressure ratio of 9. The gas temperature is 438 K at the compressor inlet and 1582 K at the turbine inlet. Utilizing the air-standard assumptions (A-17 tables), determine (1) The gas temperature at the exit of the compressor K (2) The gas temperature at the exit of the turbine K (3) Work input to the compressor kJ/kg (4) Work output of the turbine kJ/kg (5) Total heat input...
1. A combustion turbine possesses the following characteristics: Compressor 97 kPa and 30。C inlet conditions Pressure...
1. A combustion turbine possesses the following characteristics: Compressor 97 kPa and 30。C inlet conditions Pressure ratio: 5.5 Isentropic compression efficiency: 0.84 Combustor Outlet temperature: 1000 °C Pressure loss: 3 percent Fuel: natural gas Turbine Exit pressure: 100 kPa Isentropic expansion efficiency: 0.88 Generator Generator efficiency: 0.98 Determine the overall thermal efficiency, the heat rate, and the fuel-to-air ratio
Question B (15 marks) You are to analyze a combined cycle that consists of a gas (air) turbine cy...
Energy Convertion
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Question B (15 marks) You are to analyze a combined cycle that consists of a gas (air) turbine cycle (top) ttom). The gas cycle has the following operating conditions: inlet pressure to compressor one bar inlet temperature-300 K operating pressure ratio-12 Maxmum allowable temperature 1150 °C adiabatic efficiency for compressor 0.83 adiabatic efficiency for turbine-0.87 - - The exhaust leaves stack at 120 °C after vaporizing water in the...
A combined cycle gas turbine/vapor power plant uses the turbine exhaust as the energy source for...
A combined cycle gas turbine/vapor power plant uses the turbine exhaust as the energy source for the boiler. Each power system uses a single turbine. The gas power system is modeled as an ideal air-standard Brayton cycle. The vapor power system is modeled as an ideal Rankine cycle. Given specific operating conditions determine the temperature and pressure at each state, the rate of heat transfer in the boiler, the power output of each turbine, and the overall efficiency. --Given Values--...
A brayton cycle with regeneration and intercooling has a pressure ratio of 4 across each compressor...
A brayton cycle with regeneration and intercooling has a
pressure ratio of 4 across each compressor while the total pressure
ratio across the turbine is 16. Air enters each compressor at 298K
while the inlet gas temperature to the turbine is 1200K. If the
regenerator effectiveness is 100%, calculate the cycle thermal
efficiency from the heat addition and rejection.
3. A Brayton cycle with regeneration and intercolinig aeross the turbine is across each compressor while the total pressure ratio across...
Combustor Gas turbine :Compressor- Turbine Air inlet- 7 Heat-recovery steam generator Turbine Vap...
please solve the problem, it is thermo-design problem,
please do in details, thank you
Combustor Gas turbine :Compressor- Turbine Air inlet- 7 Heat-recovery steam generator Turbine Vapor cycle W) Pump Condenser Cooling water Figure 1: Combined gas turbine-vapor power plant Consider Figure 1 above. The following information is given a. p- 14.7 psia, T 540 °R b. P/p1 12.0 С. Т,-2500,"R d, P,-14.7 psia, Ts-700. "R (Rankine) e. P 1000. psia f. P 1.00 psia, x>0.85 or superheated The isentropic...
A combined cycle gas turbine / vapor power plant uses the turbine exhaust as the energy...
A combined cycle gas turbine / vapor power plant uses the turbine exhaust as the energy source for the boiler. Each power system uses a single turbine. The gas power system is modeled as an ideal air-standard Brayton cycle. The vapor power system is modeled as an ideal Rankine cycle. Given specific operating conditions determine the temperature and pressure at each state, the rate of heat transfer in the boiler, the power output of each turbine, and the overall efficiency....
4. A regenerative two-stage gas turbine with reheat operating on the standard-air Brayton cycle i...
4. A regenerative two-stage gas turbine with reheat operating on
the standard-air Brayton cycle is illustrated in Figure 3. In an
ideal Brayton cycle, the processes in the turbines and compressor
are adiabatic and isentropic, and the air flows through the
combustor and heat exchangers at constant pressure.
a) Show that the maximum total work output is
developed when the pressure ratio is the same across each stage, if
the temperature at the inlet to each turbine stage is the...
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...
In a combustion turbine using natural gas as the fuel, air enters the compressor at 98...
In a combustion turbine using natural gas as the fuel, air enters the compressor at 98 kPa and 300 "K. The pressure ratio in the compressor is 8 and the isentropic efficiency of the compressor is 85%. The outlet temperature of the combustion chamber is 1200 K. The pressure drops by 4 percent in the combustion chamber. The exit pressure of the turbine is 102 kPa and the isentropic efficiency of the turbine is 90%. Find: a) The exit temperature...
1. A combustion turbine possesses the following characteristics: Compressor 97 kPa and 30。C inlet conditions Pressure ratio: 5.5 Isentropic compression efficiency: 0.84 Combustor Outlet temperature: 1000 °C Pressure loss: 3 percent Fuel: natural gas Turbine Exit pressure: 100 kPa Isentropic expansion efficiency: 0.88 Generator Generator efficiency: 0.98 Determine the overall thermal efficiency, the heat rate, and the fuel-to-air ratio
Energy Convertion
hello, please help me quickly please please
thank you
Question B (15 marks) You are to analyze a combined cycle that consists of a gas (air) turbine cycle (top) ttom). The gas cycle has the following operating conditions: inlet pressure to compressor one bar inlet temperature-300 K operating pressure ratio-12 Maxmum allowable temperature 1150 °C adiabatic efficiency for compressor 0.83 adiabatic efficiency for turbine-0.87 - - The exhaust leaves stack at 120 °C after vaporizing water in the...
A brayton cycle with regeneration and intercooling has a
pressure ratio of 4 across each compressor while the total pressure
ratio across the turbine is 16. Air enters each compressor at 298K
while the inlet gas temperature to the turbine is 1200K. If the
regenerator effectiveness is 100%, calculate the cycle thermal
efficiency from the heat addition and rejection.
3. A Brayton cycle with regeneration and intercolinig aeross the turbine is across each compressor while the total pressure ratio across...
please solve the problem, it is thermo-design problem,
please do in details, thank you
Combustor Gas turbine :Compressor- Turbine Air inlet- 7 Heat-recovery steam generator Turbine Vapor cycle W) Pump Condenser Cooling water Figure 1: Combined gas turbine-vapor power plant Consider Figure 1 above. The following information is given a. p- 14.7 psia, T 540 °R b. P/p1 12.0 С. Т,-2500,"R d, P,-14.7 psia, Ts-700. "R (Rankine) e. P 1000. psia f. P 1.00 psia, x>0.85 or superheated The isentropic...
4. A regenerative two-stage gas turbine with reheat operating on
the standard-air Brayton cycle is illustrated in Figure 3. In an
ideal Brayton cycle, the processes in the turbines and compressor
are adiabatic and isentropic, and the air flows through the
combustor and heat exchangers at constant pressure.
a) Show that the maximum total work output is
developed when the pressure ratio is the same across each stage, if
the temperature at the inlet to each turbine stage is the...
In a combustion turbine using natural gas as the fuel, air enters the compressor at 98 kPa and 300 "K. The pressure ratio in the compressor is 8 and the isentropic efficiency of the compressor is 85%. The outlet temperature of the combustion chamber is 1200 K. The pressure drops by 4 percent in the combustion chamber. The exit pressure of the turbine is 102 kPa and the isentropic efficiency of the turbine is 90%. Find: a) The exit temperature...
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