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Assertion (A): In a gas turbine, reheating is preferred over regeneration to yield ahigher thermal efficiency.
Reason (R): The thermal efficiency given by the ratio of the difference of work doneby turbine (Wt) and work required by compressor (Wc) to heat added (QA) isimproved by increasing the Wt keeping Wc and QA constant in reheating, whereas inregeneration QA is reduced keeping Wt and Wc constant.
- a)Both A and R are individually true and R is the correct explanation of A
- b)Both A and R are individually true but R is not the correct explanation of A
- c)A is true but R is false
- d)A is false but R is true
Correct answer is option 'D'. Can you explain this answer?
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Assertion (A): In a gas turbine, reheating is preferred over regenerat...
A is false but R is true
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Assertion (A): In a gas turbine, reheating is preferred over regenerat...
Explanation:
Assertion (A) and Reason (R) Analysis:
- Assertion (A): In a gas turbine, reheating is preferred over regeneration to yield a higher thermal efficiency. This statement implies that reheating is more effective in improving thermal efficiency compared to regeneration.
- Reason (R): The thermal efficiency given by the ratio of the difference of work done by the turbine (Wt) and work required by the compressor (Wc) to heat added (QA) is improved by increasing the Wt in reheating, keeping Wc and QA constant, while in regeneration, QA is reduced, keeping Wt and Wc constant.
Evaluation of A and R:
- The reason provided in statement (R) is true. Reheating increases the work done by the turbine (Wt) while maintaining the same work required by the compressor (Wc) and heat added (QA), which leads to an improvement in thermal efficiency.
- However, assertion (A) is false. In reality, regeneration is preferred over reheating in gas turbines to enhance thermal efficiency. The process of regeneration involves transferring heat from the exhaust gases to the compressed air before entering the combustion chamber, reducing the overall fuel consumption and increasing efficiency.
- Therefore, the correct answer is option 'D' as assertion (A) is false despite the reason (R) being true.
By understanding the concepts of reheating and regeneration in gas turbines, it becomes clear that regeneration is the more efficient method for improving thermal efficiency, contrary to the assertion provided.
Assertion (A) and Reason (R) Analysis:
- Assertion (A): In a gas turbine, reheating is preferred over regeneration to yield a higher thermal efficiency. This statement implies that reheating is more effective in improving thermal efficiency compared to regeneration.
- Reason (R): The thermal efficiency given by the ratio of the difference of work done by the turbine (Wt) and work required by the compressor (Wc) to heat added (QA) is improved by increasing the Wt in reheating, keeping Wc and QA constant, while in regeneration, QA is reduced, keeping Wt and Wc constant.
Evaluation of A and R:
- The reason provided in statement (R) is true. Reheating increases the work done by the turbine (Wt) while maintaining the same work required by the compressor (Wc) and heat added (QA), which leads to an improvement in thermal efficiency.
- However, assertion (A) is false. In reality, regeneration is preferred over reheating in gas turbines to enhance thermal efficiency. The process of regeneration involves transferring heat from the exhaust gases to the compressed air before entering the combustion chamber, reducing the overall fuel consumption and increasing efficiency.
- Therefore, the correct answer is option 'D' as assertion (A) is false despite the reason (R) being true.
By understanding the concepts of reheating and regeneration in gas turbines, it becomes clear that regeneration is the more efficient method for improving thermal efficiency, contrary to the assertion provided.
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Assertion (A): In a gas turbine, reheating is preferred over regeneration to yield ahigher thermal efficiency.Reason (R): The thermal efficiency given by the ratio of the difference of work doneby turbine (Wt) and work required by compressor (Wc) to heat added (QA) isimproved by increasing the Wt keeping Wc and QA constant in reheating, whereas inregeneration QA is reduced keeping Wt and Wc constant.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'D'. Can you explain this answer?
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Assertion (A): In a gas turbine, reheating is preferred over regeneration to yield ahigher thermal efficiency.Reason (R): The thermal efficiency given by the ratio of the difference of work doneby turbine (Wt) and work required by compressor (Wc) to heat added (QA) isimproved by increasing the Wt keeping Wc and QA constant in reheating, whereas inregeneration QA is reduced keeping Wt and Wc constant.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'D'. 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 Assertion (A): In a gas turbine, reheating is preferred over regeneration to yield ahigher thermal efficiency.Reason (R): The thermal efficiency given by the ratio of the difference of work doneby turbine (Wt) and work required by compressor (Wc) to heat added (QA) isimproved by increasing the Wt keeping Wc and QA constant in reheating, whereas inregeneration QA is reduced keeping Wt and Wc constant.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'D'. 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 Assertion (A): In a gas turbine, reheating is preferred over regeneration to yield ahigher thermal efficiency.Reason (R): The thermal efficiency given by the ratio of the difference of work doneby turbine (Wt) and work required by compressor (Wc) to heat added (QA) isimproved by increasing the Wt keeping Wc and QA constant in reheating, whereas inregeneration QA is reduced keeping Wt and Wc constant.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'D'. Can you explain this answer?.
Assertion (A): In a gas turbine, reheating is preferred over regeneration to yield ahigher thermal efficiency.Reason (R): The thermal efficiency given by the ratio of the difference of work doneby turbine (Wt) and work required by compressor (Wc) to heat added (QA) isimproved by increasing the Wt keeping Wc and QA constant in reheating, whereas inregeneration QA is reduced keeping Wt and Wc constant.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'D'. 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 Assertion (A): In a gas turbine, reheating is preferred over regeneration to yield ahigher thermal efficiency.Reason (R): The thermal efficiency given by the ratio of the difference of work doneby turbine (Wt) and work required by compressor (Wc) to heat added (QA) isimproved by increasing the Wt keeping Wc and QA constant in reheating, whereas inregeneration QA is reduced keeping Wt and Wc constant.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'D'. 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 Assertion (A): In a gas turbine, reheating is preferred over regeneration to yield ahigher thermal efficiency.Reason (R): The thermal efficiency given by the ratio of the difference of work doneby turbine (Wt) and work required by compressor (Wc) to heat added (QA) isimproved by increasing the Wt keeping Wc and QA constant in reheating, whereas inregeneration QA is reduced keeping Wt and Wc constant.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Assertion (A): In a gas turbine, reheating is preferred over regeneration to yield ahigher thermal efficiency.Reason (R): The thermal efficiency given by the ratio of the difference of work doneby turbine (Wt) and work required by compressor (Wc) to heat added (QA) isimproved by increasing the Wt keeping Wc and QA constant in reheating, whereas inregeneration QA is reduced keeping Wt and Wc constant.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Mechanical Engineering.
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Here you can find the meaning of Assertion (A): In a gas turbine, reheating is preferred over regeneration to yield ahigher thermal efficiency.Reason (R): The thermal efficiency given by the ratio of the difference of work doneby turbine (Wt) and work required by compressor (Wc) to heat added (QA) isimproved by increasing the Wt keeping Wc and QA constant in reheating, whereas inregeneration QA is reduced keeping Wt and Wc constant.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Assertion (A): In a gas turbine, reheating is preferred over regeneration to yield ahigher thermal efficiency.Reason (R): The thermal efficiency given by the ratio of the difference of work doneby turbine (Wt) and work required by compressor (Wc) to heat added (QA) isimproved by increasing the Wt keeping Wc and QA constant in reheating, whereas inregeneration QA is reduced keeping Wt and Wc constant.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Assertion (A): In a gas turbine, reheating is preferred over regeneration to yield ahigher thermal efficiency.Reason (R): The thermal efficiency given by the ratio of the difference of work doneby turbine (Wt) and work required by compressor (Wc) to heat added (QA) isimproved by increasing the Wt keeping Wc and QA constant in reheating, whereas inregeneration QA is reduced keeping Wt and Wc constant.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Assertion (A): In a gas turbine, reheating is preferred over regeneration to yield ahigher thermal efficiency.Reason (R): The thermal efficiency given by the ratio of the difference of work doneby turbine (Wt) and work required by compressor (Wc) to heat added (QA) isimproved by increasing the Wt keeping Wc and QA constant in reheating, whereas inregeneration QA is reduced keeping Wt and Wc constant.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Assertion (A): In a gas turbine, reheating is preferred over regeneration to yield ahigher thermal efficiency.Reason (R): The thermal efficiency given by the ratio of the difference of work doneby turbine (Wt) and work required by compressor (Wc) to heat added (QA) isimproved by increasing the Wt keeping Wc and QA constant in reheating, whereas inregeneration QA is reduced keeping Wt and Wc constant.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice Mechanical Engineering tests.
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