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The practice to use steam on the shell side and water on the tube side in condensers of steam power plant is because
[1994]
- a)to increase overall HT coefficient, water side velocity can be increased if water is on the tube side
- b)condenser can act as a Storage unit for condensed steam
- c)rate of condensation of steam is invariably smaller than the mass flow rate of cooling water
- d)it is easier to maintain vacuum on the shell side than on the tube side
Correct answer is option 'D'. Can you explain this answer?
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The practice to use steam on the shell side and water on the tube side...
Air leaked into the condensor can be easily extracted.
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The practice to use steam on the shell side and water on the tube side...
Explanation:
The practice of using steam on the shell side and water on the tube side in condensers of a steam power plant is because it is easier to maintain a vacuum on the shell side than on the tube side. This is the correct answer, option D.
Reasoning:
To understand why maintaining a vacuum is easier on the shell side, we need to consider the working principle of a condenser in a steam power plant.
A condenser is a heat exchanger that is used to convert the exhaust steam from the turbine back into water, which can then be recycled and used as feedwater for the boiler. The condenser operates under vacuum conditions, which helps to increase the efficiency of the power plant by reducing the back pressure on the turbine.
Explanation of the options:
a) Option A states that using water on the tube side would increase the overall heat transfer coefficient because the water side velocity can be increased. While this may be true, it is not the main reason for using steam on the shell side. The primary reason is to maintain a vacuum, not to increase the heat transfer coefficient.
b) Option B suggests that the condenser can act as a storage unit for condensed steam. While the condenser does collect and store the condensed steam, this is not the reason for using steam on the shell side. The main reason is still to maintain a vacuum.
c) Option C states that the rate of condensation of steam is invariably smaller than the mass flow rate of cooling water. This is generally true, but it is not the reason for using steam on the shell side. Again, the main reason is to maintain a vacuum.
d) Option D correctly states that it is easier to maintain a vacuum on the shell side than on the tube side. This is because the shell side is typically larger and less prone to leaks and air ingress compared to the tube side. Therefore, this is the correct answer.
Conclusion:
The practice of using steam on the shell side and water on the tube side in condensers of a steam power plant is primarily to maintain a vacuum. This is because it is easier to maintain a vacuum on the larger and less leak-prone shell side compared to the tube side.
The practice of using steam on the shell side and water on the tube side in condensers of a steam power plant is because it is easier to maintain a vacuum on the shell side than on the tube side. This is the correct answer, option D.
Reasoning:
To understand why maintaining a vacuum is easier on the shell side, we need to consider the working principle of a condenser in a steam power plant.
A condenser is a heat exchanger that is used to convert the exhaust steam from the turbine back into water, which can then be recycled and used as feedwater for the boiler. The condenser operates under vacuum conditions, which helps to increase the efficiency of the power plant by reducing the back pressure on the turbine.
Explanation of the options:
a) Option A states that using water on the tube side would increase the overall heat transfer coefficient because the water side velocity can be increased. While this may be true, it is not the main reason for using steam on the shell side. The primary reason is to maintain a vacuum, not to increase the heat transfer coefficient.
b) Option B suggests that the condenser can act as a storage unit for condensed steam. While the condenser does collect and store the condensed steam, this is not the reason for using steam on the shell side. The main reason is still to maintain a vacuum.
c) Option C states that the rate of condensation of steam is invariably smaller than the mass flow rate of cooling water. This is generally true, but it is not the reason for using steam on the shell side. Again, the main reason is to maintain a vacuum.
d) Option D correctly states that it is easier to maintain a vacuum on the shell side than on the tube side. This is because the shell side is typically larger and less prone to leaks and air ingress compared to the tube side. Therefore, this is the correct answer.
Conclusion:
The practice of using steam on the shell side and water on the tube side in condensers of a steam power plant is primarily to maintain a vacuum. This is because it is easier to maintain a vacuum on the larger and less leak-prone shell side compared to the tube side.
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The practice to use steam on the shell side and water on the tube side in condensers of steam power plant is because[1994]a)to increase overall HT coefficient, water side velocity can be increased if water is on the tube sideb)condenser can act as a Storage unit for condensed steamc)rate of condensation of steam is invariably smaller than the mass flow rate of cooling waterd)it is easier to maintain vacuum on the shell side than on the tube sideCorrect answer is option 'D'. Can you explain this answer?
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The practice to use steam on the shell side and water on the tube side in condensers of steam power plant is because[1994]a)to increase overall HT coefficient, water side velocity can be increased if water is on the tube sideb)condenser can act as a Storage unit for condensed steamc)rate of condensation of steam is invariably smaller than the mass flow rate of cooling waterd)it is easier to maintain vacuum on the shell side than on the tube sideCorrect 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 The practice to use steam on the shell side and water on the tube side in condensers of steam power plant is because[1994]a)to increase overall HT coefficient, water side velocity can be increased if water is on the tube sideb)condenser can act as a Storage unit for condensed steamc)rate of condensation of steam is invariably smaller than the mass flow rate of cooling waterd)it is easier to maintain vacuum on the shell side than on the tube sideCorrect 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 The practice to use steam on the shell side and water on the tube side in condensers of steam power plant is because[1994]a)to increase overall HT coefficient, water side velocity can be increased if water is on the tube sideb)condenser can act as a Storage unit for condensed steamc)rate of condensation of steam is invariably smaller than the mass flow rate of cooling waterd)it is easier to maintain vacuum on the shell side than on the tube sideCorrect answer is option 'D'. Can you explain this answer?.
The practice to use steam on the shell side and water on the tube side in condensers of steam power plant is because[1994]a)to increase overall HT coefficient, water side velocity can be increased if water is on the tube sideb)condenser can act as a Storage unit for condensed steamc)rate of condensation of steam is invariably smaller than the mass flow rate of cooling waterd)it is easier to maintain vacuum on the shell side than on the tube sideCorrect 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 The practice to use steam on the shell side and water on the tube side in condensers of steam power plant is because[1994]a)to increase overall HT coefficient, water side velocity can be increased if water is on the tube sideb)condenser can act as a Storage unit for condensed steamc)rate of condensation of steam is invariably smaller than the mass flow rate of cooling waterd)it is easier to maintain vacuum on the shell side than on the tube sideCorrect 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 The practice to use steam on the shell side and water on the tube side in condensers of steam power plant is because[1994]a)to increase overall HT coefficient, water side velocity can be increased if water is on the tube sideb)condenser can act as a Storage unit for condensed steamc)rate of condensation of steam is invariably smaller than the mass flow rate of cooling waterd)it is easier to maintain vacuum on the shell side than on the tube sideCorrect answer is option 'D'. Can you explain this answer?.
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