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Consider the following features for a gas turbine plant:
1. Intercooling
2. Regeneration
3. Reheat
Which of the above features in a simple gas turbine cycle increases the work ratio?
- a)1, 2 and 3
- b)Only 1 and 2
- c)Only 2 and 3
- d)Only 1 and 3
Correct answer is option 'D'. Can you explain this answer?
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Consider the following features for a gas turbine plant:1. Intercooli...
Work ratio = net work / positive work = WT - WC / WT
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Consider the following features for a gas turbine plant:1. Intercooli...
To understand which features increase the work ratio in a simple gas turbine cycle, let's discuss each feature one by one:
1. Intercooling:
Intercooling is the process of cooling the air between the compression stages in a gas turbine cycle. It involves passing the compressed air through a heat exchanger, where it is cooled before entering the combustion chamber. The purpose of intercooling is to increase the density of the air, which leads to an increase in the mass flow rate and ultimately increases the work ratio.
2. Regeneration:
Regeneration is the process of recovering waste heat from the exhaust gases of the turbine and using it to preheat the compressed air before it enters the combustion chamber. This preheating reduces the amount of fuel required to heat the air to the desired temperature, resulting in a higher work ratio.
3. Reheat:
Reheat is the process of reheating the exhaust gases from the turbine before they are discharged. After the first expansion in the turbine, the exhaust gases are sent back to the combustion chamber to be reheated before undergoing further expansion in the turbine. Reheating allows for additional expansion of the gases, which increases the work output of the turbine and improves the work ratio.
Considering all the above features, we can conclude that options (a), (b), and (d) are incorrect because they do not include all the features that increase the work ratio.
Option (c) is also incorrect because it only includes features 2 and 3, but not feature 1 (intercooling). Therefore, the correct answer is option (d), which includes both intercooling (feature 1) and reheat (feature 3). These two features, when combined, result in an increased work ratio in a simple gas turbine cycle.
1. Intercooling:
Intercooling is the process of cooling the air between the compression stages in a gas turbine cycle. It involves passing the compressed air through a heat exchanger, where it is cooled before entering the combustion chamber. The purpose of intercooling is to increase the density of the air, which leads to an increase in the mass flow rate and ultimately increases the work ratio.
2. Regeneration:
Regeneration is the process of recovering waste heat from the exhaust gases of the turbine and using it to preheat the compressed air before it enters the combustion chamber. This preheating reduces the amount of fuel required to heat the air to the desired temperature, resulting in a higher work ratio.
3. Reheat:
Reheat is the process of reheating the exhaust gases from the turbine before they are discharged. After the first expansion in the turbine, the exhaust gases are sent back to the combustion chamber to be reheated before undergoing further expansion in the turbine. Reheating allows for additional expansion of the gases, which increases the work output of the turbine and improves the work ratio.
Considering all the above features, we can conclude that options (a), (b), and (d) are incorrect because they do not include all the features that increase the work ratio.
Option (c) is also incorrect because it only includes features 2 and 3, but not feature 1 (intercooling). Therefore, the correct answer is option (d), which includes both intercooling (feature 1) and reheat (feature 3). These two features, when combined, result in an increased work ratio in a simple gas turbine cycle.
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Consider the following features for a gas turbine plant:1. Intercooling2. Regeneration3. ReheatWhich of the above features in a simple gas turbine cycle increases the work ratio?a)1, 2 and 3b)Only 1 and 2c)Only 2 and 3d)Only 1 and 3Correct answer is option 'D'. Can you explain this answer?
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Consider the following features for a gas turbine plant:1. Intercooling2. Regeneration3. ReheatWhich of the above features in a simple gas turbine cycle increases the work ratio?a)1, 2 and 3b)Only 1 and 2c)Only 2 and 3d)Only 1 and 3Correct answer is option 'D'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about Consider the following features for a gas turbine plant:1. Intercooling2. Regeneration3. ReheatWhich of the above features in a simple gas turbine cycle increases the work ratio?a)1, 2 and 3b)Only 1 and 2c)Only 2 and 3d)Only 1 and 3Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following features for a gas turbine plant:1. Intercooling2. Regeneration3. ReheatWhich of the above features in a simple gas turbine cycle increases the work ratio?a)1, 2 and 3b)Only 1 and 2c)Only 2 and 3d)Only 1 and 3Correct answer is option 'D'. Can you explain this answer?.
Consider the following features for a gas turbine plant:1. Intercooling2. Regeneration3. ReheatWhich of the above features in a simple gas turbine cycle increases the work ratio?a)1, 2 and 3b)Only 1 and 2c)Only 2 and 3d)Only 1 and 3Correct answer is option 'D'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about Consider the following features for a gas turbine plant:1. Intercooling2. Regeneration3. ReheatWhich of the above features in a simple gas turbine cycle increases the work ratio?a)1, 2 and 3b)Only 1 and 2c)Only 2 and 3d)Only 1 and 3Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following features for a gas turbine plant:1. Intercooling2. Regeneration3. ReheatWhich of the above features in a simple gas turbine cycle increases the work ratio?a)1, 2 and 3b)Only 1 and 2c)Only 2 and 3d)Only 1 and 3Correct answer is option 'D'. Can you explain this answer?.
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