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In a reaction turbine, a stage is represented by
- a)each row of blades
- b)number of exits of steam .
- c)number of bleeding
- d)none of these
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
In a reaction turbine, a stage is represented bya)each row of bladesb)...
A stage of a reaction turbine consists of each row of blade i.e., one is fixed and other is movable.
Most Upvoted Answer
In a reaction turbine, a stage is represented bya)each row of bladesb)...
In a reaction turbine, a stage is represented by:
A stage in a reaction turbine refers to each row of blades that the steam passes through as it flows through the turbine. It is an important concept in understanding the operation and design of reaction turbines.
Explanation:
A reaction turbine is a type of turbine where the steam expands and changes direction as it passes through the blades. It is a continuous-flow machine, meaning that steam enters the turbine at one end and exits at the other, while the blades extract energy from the steam. The steam pressure decreases gradually as it passes through each stage, and the velocity of the steam increases.
Each row of blades:
- In a reaction turbine, the blades are arranged in multiple rows, which are referred to as stages.
- Each stage consists of a set of stationary blades (nozzles or guides) and a set of rotating blades (buckets or rotor blades).
- The steam passes through each stage, and as it does so, it undergoes a change in pressure and velocity, transferring energy to the blades and causing the rotor to rotate.
Number of exits of steam:
- The number of exits of steam does not represent a stage in a reaction turbine.
- In a reaction turbine, there is typically only one exit for the steam, which is at the exhaust end of the turbine.
- The steam flows through multiple stages, but it is a continuous flow, and there is no separate exit for each stage.
Number of bleeding:
- Bleeding refers to the extraction of steam from an intermediate stage of the turbine to be used for other purposes, such as heating or feedwater heating.
- Bleeding does not represent a stage in a reaction turbine.
- It is a separate feature that can be added to the turbine design, but it does not define a stage.
Conclusion:
In a reaction turbine, a stage is represented by each row of blades. The steam passes through multiple stages, with each stage consisting of a row of stationary blades and a row of rotating blades. The concept of stages is important for understanding the flow of steam and the extraction of energy in a reaction turbine.
A stage in a reaction turbine refers to each row of blades that the steam passes through as it flows through the turbine. It is an important concept in understanding the operation and design of reaction turbines.
Explanation:
A reaction turbine is a type of turbine where the steam expands and changes direction as it passes through the blades. It is a continuous-flow machine, meaning that steam enters the turbine at one end and exits at the other, while the blades extract energy from the steam. The steam pressure decreases gradually as it passes through each stage, and the velocity of the steam increases.
Each row of blades:
- In a reaction turbine, the blades are arranged in multiple rows, which are referred to as stages.
- Each stage consists of a set of stationary blades (nozzles or guides) and a set of rotating blades (buckets or rotor blades).
- The steam passes through each stage, and as it does so, it undergoes a change in pressure and velocity, transferring energy to the blades and causing the rotor to rotate.
Number of exits of steam:
- The number of exits of steam does not represent a stage in a reaction turbine.
- In a reaction turbine, there is typically only one exit for the steam, which is at the exhaust end of the turbine.
- The steam flows through multiple stages, but it is a continuous flow, and there is no separate exit for each stage.
Number of bleeding:
- Bleeding refers to the extraction of steam from an intermediate stage of the turbine to be used for other purposes, such as heating or feedwater heating.
- Bleeding does not represent a stage in a reaction turbine.
- It is a separate feature that can be added to the turbine design, but it does not define a stage.
Conclusion:
In a reaction turbine, a stage is represented by each row of blades. The steam passes through multiple stages, with each stage consisting of a row of stationary blades and a row of rotating blades. The concept of stages is important for understanding the flow of steam and the extraction of energy in a reaction turbine.
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