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A gas turbine power plant has a specific output of 350 kJ/kg and an efficiency of 34%. A regenerator is installed and the efficiency increases to 51%. The specific output wil! be closest to
- a)350 kJ/kg
- b)468 kJ/kg
- c)525 kJ/kg
- d)700 kJ/kg
Correct answer is option 'A'. Can you explain this answer?
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A gas turbine power plant has a specific output of 350 kJ/kg and an ef...
In case of gas turbine, regeneration decreases the heat supplied. It has no effect on power output.
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A gas turbine power plant has a specific output of 350 kJ/kg and an ef...
Specific Output of the Gas Turbine Power Plant
The specific output of a gas turbine power plant is the amount of work done by the turbine per unit mass of fuel burned. It is given as 350 kJ/kg, which means that for every kilogram of fuel burned, the turbine produces 350 kJ of work.
Efficiency of the Gas Turbine Power Plant
The efficiency of a power plant is the ratio of the useful work output to the energy input. In this case, the efficiency of the gas turbine power plant is given as 34%, which means that only 34% of the energy input is converted into useful work, while the remaining 66% is lost as waste heat.
Introduction of a Regenerator
A regenerator is a device that recovers waste heat from the exhaust gases and uses it to preheat the incoming air before it enters the combustion chamber. This preheating of the air reduces the amount of fuel required to produce the same amount of work, thereby increasing the overall efficiency of the power plant.
Increase in Efficiency with the Regenerator
The installation of the regenerator increases the efficiency of the gas turbine power plant from 34% to 51%. This means that now 51% of the energy input is converted into useful work, while only 49% is lost as waste heat.
Impact on Specific Output
The specific output of the gas turbine power plant is not affected by the installation of the regenerator. The specific output is determined solely by the design and performance of the turbine, and it remains constant regardless of the efficiency of the power plant.
Closest Specific Output
Since the specific output of the gas turbine power plant is given as 350 kJ/kg, it remains the same even after the installation of the regenerator. Therefore, the closest specific output to the given value of 350 kJ/kg is option 'A'.
The specific output of a gas turbine power plant is the amount of work done by the turbine per unit mass of fuel burned. It is given as 350 kJ/kg, which means that for every kilogram of fuel burned, the turbine produces 350 kJ of work.
Efficiency of the Gas Turbine Power Plant
The efficiency of a power plant is the ratio of the useful work output to the energy input. In this case, the efficiency of the gas turbine power plant is given as 34%, which means that only 34% of the energy input is converted into useful work, while the remaining 66% is lost as waste heat.
Introduction of a Regenerator
A regenerator is a device that recovers waste heat from the exhaust gases and uses it to preheat the incoming air before it enters the combustion chamber. This preheating of the air reduces the amount of fuel required to produce the same amount of work, thereby increasing the overall efficiency of the power plant.
Increase in Efficiency with the Regenerator
The installation of the regenerator increases the efficiency of the gas turbine power plant from 34% to 51%. This means that now 51% of the energy input is converted into useful work, while only 49% is lost as waste heat.
Impact on Specific Output
The specific output of the gas turbine power plant is not affected by the installation of the regenerator. The specific output is determined solely by the design and performance of the turbine, and it remains constant regardless of the efficiency of the power plant.
Closest Specific Output
Since the specific output of the gas turbine power plant is given as 350 kJ/kg, it remains the same even after the installation of the regenerator. Therefore, the closest specific output to the given value of 350 kJ/kg is option 'A'.
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A gas turbine power plant has a specific output of 350 kJ/kg and an efficiency of 34%. A regenerator is installed and the efficiency increases to 51%. The specific output wil! be closest toa)350 kJ/kgb)468 kJ/kgc)525 kJ/kgd)700 kJ/kgCorrect answer is option 'A'. Can you explain this answer?
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A gas turbine power plant has a specific output of 350 kJ/kg and an efficiency of 34%. A regenerator is installed and the efficiency increases to 51%. The specific output wil! be closest toa)350 kJ/kgb)468 kJ/kgc)525 kJ/kgd)700 kJ/kgCorrect answer is option 'A'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about A gas turbine power plant has a specific output of 350 kJ/kg and an efficiency of 34%. A regenerator is installed and the efficiency increases to 51%. The specific output wil! be closest toa)350 kJ/kgb)468 kJ/kgc)525 kJ/kgd)700 kJ/kgCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A gas turbine power plant has a specific output of 350 kJ/kg and an efficiency of 34%. A regenerator is installed and the efficiency increases to 51%. The specific output wil! be closest toa)350 kJ/kgb)468 kJ/kgc)525 kJ/kgd)700 kJ/kgCorrect answer is option 'A'. Can you explain this answer?.
A gas turbine power plant has a specific output of 350 kJ/kg and an efficiency of 34%. A regenerator is installed and the efficiency increases to 51%. The specific output wil! be closest toa)350 kJ/kgb)468 kJ/kgc)525 kJ/kgd)700 kJ/kgCorrect answer is option 'A'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about A gas turbine power plant has a specific output of 350 kJ/kg and an efficiency of 34%. A regenerator is installed and the efficiency increases to 51%. The specific output wil! be closest toa)350 kJ/kgb)468 kJ/kgc)525 kJ/kgd)700 kJ/kgCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A gas turbine power plant has a specific output of 350 kJ/kg and an efficiency of 34%. A regenerator is installed and the efficiency increases to 51%. The specific output wil! be closest toa)350 kJ/kgb)468 kJ/kgc)525 kJ/kgd)700 kJ/kgCorrect answer is option 'A'. Can you explain this answer?.
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