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Francis turbine is a
- a)Axial flow impulse turbine
- b)Radial flow reaction turbine
- c)Axial flow reaction turbine
- d)Radial flow impulse turbine
Correct answer is option 'B'. Can you explain this answer?
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Francis turbine is aa)Axial flow impulse turbineb)Radial flow reactio...
Impulse Turbine: If at the inlet of the turbine, the energy available is only kinetic energy, the turbine is known as an impulse turbine. e.g., a Pelton wheel turbine.
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Reaction Turbine: If at the inlet of the turbine, the water possesses kinetic energy and pressure energy, the turbine is known as a reaction turbine. e.g., e Francis and Kaplan turbine.
Tangential flow turbines: In this type of turbine, the water strikes the runner in the tangent direction to the wheel. Example: Pelton wheel turbine
Radial flow turbines: In this type of turbine, the water strikes in the radial direction. accordingly, it is further classified as
- Inward flow turbine: The flow is inward from periphery to the centre (centripetal type); Example: old Francis turbine
- Outward flow turbine: The flow is outward from the centre to periphery (centrifugal type); Example: Fourneyron turbine
Axial flow turbine: The flow of water is in the direction parallel to the shaft axis. Example: Kaplan turbine and propeller turbine
∴ Francis turbine is a radial inward flowing reaction turbine.
Most Upvoted Answer
Francis turbine is aa)Axial flow impulse turbineb)Radial flow reactio...
Francis turbine is a radial flow reaction turbine.
Explanation:
A Francis turbine is a type of hydraulic turbine that is used for generating electricity from the energy of flowing water. It was developed by James B. Francis in the mid-19th century and is widely used in power plants around the world.
Radial flow reaction turbine:
A radial flow reaction turbine is a type of turbine in which the flow of water or steam is primarily radial, meaning the water moves in a direction perpendicular to the axis of rotation. In a radial flow turbine, the water enters the turbine through the center and flows outward towards the periphery. The blades of the turbine are curved and the water flows over the blades and changes direction, transferring its energy to the turbine rotor. This type of turbine is best suited for low head and high flow applications.
Features of Francis turbine:
The Francis turbine is a specific type of radial flow reaction turbine that is designed for medium to high head applications. It has several distinguishing features:
1. Radial flow: The water enters the turbine axially and then changes direction to flow radially outwards across the turbine blades.
2. Reaction turbine: The Francis turbine operates based on the principle of reaction, where the pressure of the water decreases as it flows over the blades, resulting in a reaction force that rotates the turbine.
3. Adjustable blades: The blades of a Francis turbine are adjustable, allowing for greater control over the turbine's performance and efficiency. The blades can be adjusted to optimize the turbine's operation for different flow rates and head conditions.
4. Compact design: The Francis turbine has a compact design, making it suitable for installation in power plants with limited space.
5. Efficiency: Francis turbines are known for their high efficiency, especially in medium to high head applications. The efficiency of a Francis turbine can reach up to 90%.
In conclusion, the Francis turbine is a radial flow reaction turbine that is well-suited for medium to high head applications. Its design and features make it an efficient choice for generating electricity from flowing water.
Explanation:
A Francis turbine is a type of hydraulic turbine that is used for generating electricity from the energy of flowing water. It was developed by James B. Francis in the mid-19th century and is widely used in power plants around the world.
Radial flow reaction turbine:
A radial flow reaction turbine is a type of turbine in which the flow of water or steam is primarily radial, meaning the water moves in a direction perpendicular to the axis of rotation. In a radial flow turbine, the water enters the turbine through the center and flows outward towards the periphery. The blades of the turbine are curved and the water flows over the blades and changes direction, transferring its energy to the turbine rotor. This type of turbine is best suited for low head and high flow applications.
Features of Francis turbine:
The Francis turbine is a specific type of radial flow reaction turbine that is designed for medium to high head applications. It has several distinguishing features:
1. Radial flow: The water enters the turbine axially and then changes direction to flow radially outwards across the turbine blades.
2. Reaction turbine: The Francis turbine operates based on the principle of reaction, where the pressure of the water decreases as it flows over the blades, resulting in a reaction force that rotates the turbine.
3. Adjustable blades: The blades of a Francis turbine are adjustable, allowing for greater control over the turbine's performance and efficiency. The blades can be adjusted to optimize the turbine's operation for different flow rates and head conditions.
4. Compact design: The Francis turbine has a compact design, making it suitable for installation in power plants with limited space.
5. Efficiency: Francis turbines are known for their high efficiency, especially in medium to high head applications. The efficiency of a Francis turbine can reach up to 90%.
In conclusion, the Francis turbine is a radial flow reaction turbine that is well-suited for medium to high head applications. Its design and features make it an efficient choice for generating electricity from flowing water.
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Francis turbine is aa)Axial flow impulse turbineb)Radial flow reaction turbinec)Axial flow reaction turbined)Radial flow impulse turbineCorrect answer is option 'B'. Can you explain this answer?
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Francis turbine is aa)Axial flow impulse turbineb)Radial flow reaction turbinec)Axial flow reaction turbined)Radial flow impulse turbineCorrect answer is option 'B'. Can you explain this answer? for SSC 2024 is part of SSC preparation. The Question and answers have been prepared according to the SSC exam syllabus. Information about Francis turbine is aa)Axial flow impulse turbineb)Radial flow reaction turbinec)Axial flow reaction turbined)Radial flow impulse turbineCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for SSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Francis turbine is aa)Axial flow impulse turbineb)Radial flow reaction turbinec)Axial flow reaction turbined)Radial flow impulse turbineCorrect answer is option 'B'. Can you explain this answer?.
Francis turbine is aa)Axial flow impulse turbineb)Radial flow reaction turbinec)Axial flow reaction turbined)Radial flow impulse turbineCorrect answer is option 'B'. Can you explain this answer? for SSC 2024 is part of SSC preparation. The Question and answers have been prepared according to the SSC exam syllabus. Information about Francis turbine is aa)Axial flow impulse turbineb)Radial flow reaction turbinec)Axial flow reaction turbined)Radial flow impulse turbineCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for SSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Francis turbine is aa)Axial flow impulse turbineb)Radial flow reaction turbinec)Axial flow reaction turbined)Radial flow impulse turbineCorrect answer is option 'B'. Can you explain this answer?.
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