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In a Rankine cycle, with the maximum steam temperature being fixed from metallurgical considerations, as the boiler pressure increases
- a)The condenser load will increase
- b)The quality of turbine exhaust will decrease
- c)The quality of turbine exhaust will increase
- d)The quality of turbine exhaust will remain unchanged
Correct answer is option 'B'. Can you explain this answer?
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In a Rankine cycle, with the maximum steam temperature being fixed fro...
with increase in pressure, state of steam shifts towards left and thus on expansion, quality of steam will decrease
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In a Rankine cycle, with the maximum steam temperature being fixed fro...
Explanation:
Rankine cycle is a thermodynamic cycle used in power plants to generate electricity. It consists of four components: a boiler, a turbine, a condenser, and a pump. The cycle operates by converting heat energy into mechanical work, which is then converted into electrical energy. In a Rankine cycle, the maximum steam temperature is fixed from metallurgical considerations. As the boiler pressure increases, the following changes occur:
Decrease in Quality of Turbine Exhaust:
As the boiler pressure increases, the quality of turbine exhaust decreases. This is because the higher pressure steam has a higher enthalpy, which means that it contains more energy. When this high-pressure steam expands through the turbine, it does more work. However, the expansion also causes the steam to lose some of its energy, which results in a decrease in the quality of the exhaust steam. This reduces the efficiency of the cycle.
Increase in Condenser Load:
As the boiler pressure increases, the temperature of the steam also increases. This means that the condenser needs to work harder to cool the steam down and convert it back into water. As a result, the condenser load increases, which reduces the efficiency of the cycle.
No Change in Quality of Turbine Exhaust:
In some cases, the quality of the turbine exhaust may remain unchanged as the boiler pressure increases. This occurs when the turbine is designed to operate at a specific pressure ratio. In such cases, the turbine is able to extract the same amount of energy from the high-pressure steam as it does from the low-pressure steam.
Conclusion:
In conclusion, as the boiler pressure increases in a Rankine cycle, the quality of turbine exhaust decreases, which reduces the efficiency of the cycle. Additionally, the condenser load may increase, further reducing the efficiency of the cycle.
Rankine cycle is a thermodynamic cycle used in power plants to generate electricity. It consists of four components: a boiler, a turbine, a condenser, and a pump. The cycle operates by converting heat energy into mechanical work, which is then converted into electrical energy. In a Rankine cycle, the maximum steam temperature is fixed from metallurgical considerations. As the boiler pressure increases, the following changes occur:
Decrease in Quality of Turbine Exhaust:
As the boiler pressure increases, the quality of turbine exhaust decreases. This is because the higher pressure steam has a higher enthalpy, which means that it contains more energy. When this high-pressure steam expands through the turbine, it does more work. However, the expansion also causes the steam to lose some of its energy, which results in a decrease in the quality of the exhaust steam. This reduces the efficiency of the cycle.
Increase in Condenser Load:
As the boiler pressure increases, the temperature of the steam also increases. This means that the condenser needs to work harder to cool the steam down and convert it back into water. As a result, the condenser load increases, which reduces the efficiency of the cycle.
No Change in Quality of Turbine Exhaust:
In some cases, the quality of the turbine exhaust may remain unchanged as the boiler pressure increases. This occurs when the turbine is designed to operate at a specific pressure ratio. In such cases, the turbine is able to extract the same amount of energy from the high-pressure steam as it does from the low-pressure steam.
Conclusion:
In conclusion, as the boiler pressure increases in a Rankine cycle, the quality of turbine exhaust decreases, which reduces the efficiency of the cycle. Additionally, the condenser load may increase, further reducing the efficiency of the cycle.
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In a Rankine cycle, with the maximum steam temperature being fixed from metallurgical considerations, as the boiler pressure increasesa)The condenser load will increaseb)The quality of turbine exhaust will decreasec)The quality of turbine exhaust will increased)The quality of turbine exhaust will remain unchangedCorrect answer is option 'B'. Can you explain this answer?
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In a Rankine cycle, with the maximum steam temperature being fixed from metallurgical considerations, as the boiler pressure increasesa)The condenser load will increaseb)The quality of turbine exhaust will decreasec)The quality of turbine exhaust will increased)The quality of turbine exhaust will remain unchangedCorrect answer is option 'B'. 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 In a Rankine cycle, with the maximum steam temperature being fixed from metallurgical considerations, as the boiler pressure increasesa)The condenser load will increaseb)The quality of turbine exhaust will decreasec)The quality of turbine exhaust will increased)The quality of turbine exhaust will remain unchangedCorrect answer is option 'B'. 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 In a Rankine cycle, with the maximum steam temperature being fixed from metallurgical considerations, as the boiler pressure increasesa)The condenser load will increaseb)The quality of turbine exhaust will decreasec)The quality of turbine exhaust will increased)The quality of turbine exhaust will remain unchangedCorrect answer is option 'B'. Can you explain this answer?.
In a Rankine cycle, with the maximum steam temperature being fixed from metallurgical considerations, as the boiler pressure increasesa)The condenser load will increaseb)The quality of turbine exhaust will decreasec)The quality of turbine exhaust will increased)The quality of turbine exhaust will remain unchangedCorrect answer is option 'B'. 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 In a Rankine cycle, with the maximum steam temperature being fixed from metallurgical considerations, as the boiler pressure increasesa)The condenser load will increaseb)The quality of turbine exhaust will decreasec)The quality of turbine exhaust will increased)The quality of turbine exhaust will remain unchangedCorrect answer is option 'B'. 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 In a Rankine cycle, with the maximum steam temperature being fixed from metallurgical considerations, as the boiler pressure increasesa)The condenser load will increaseb)The quality of turbine exhaust will decreasec)The quality of turbine exhaust will increased)The quality of turbine exhaust will remain unchangedCorrect answer is option 'B'. Can you explain this answer?.
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In a Rankine cycle, with the maximum steam temperature being fixed from metallurgical considerations, as the boiler pressure increasesa)The condenser load will increaseb)The quality of turbine exhaust will decreasec)The quality of turbine exhaust will increased)The quality of turbine exhaust will remain unchangedCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for In a Rankine cycle, with the maximum steam temperature being fixed from metallurgical considerations, as the boiler pressure increasesa)The condenser load will increaseb)The quality of turbine exhaust will decreasec)The quality of turbine exhaust will increased)The quality of turbine exhaust will remain unchangedCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of In a Rankine cycle, with the maximum steam temperature being fixed from metallurgical considerations, as the boiler pressure increasesa)The condenser load will increaseb)The quality of turbine exhaust will decreasec)The quality of turbine exhaust will increased)The quality of turbine exhaust will remain unchangedCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
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