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Air vessel is used in a reciprocating pump to obtain
- a)Reduction of suction heat
- b)Rise in delivery head
- c)Continuous supply of water at uniform rate
- d)Increase in supply of water
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Air vessel is used in a reciprocating pump to obtaina)Reduction of suc...
Purposes of Air vessel:
1) To obtain liquid at uniform discharge.
2) Due to air vessel frictional head and acceleration head decreases and thework overcoming friction resistance in suction and delivery pipeconsiderably decreases which results in good amount of work.
3) Reciprocating pump can run at high speed without flow separation.
This question is part of UPSC exam. View all Mechanical Engineering courses
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Air vessel is used in a reciprocating pump to obtaina)Reduction of suc...
Air vessel in a reciprocating pump
An air vessel is an essential component used in reciprocating pumps to ensure a continuous supply of water at a uniform rate. It helps in stabilizing the flow of water and reducing the pulsations that are commonly associated with reciprocating pumps. Let's understand the role of an air vessel in more detail.
1. Continuous supply of water at a uniform rate
The primary function of an air vessel in a reciprocating pump is to provide a continuous supply of water at a uniform rate. Reciprocating pumps operate by using a piston or plunger to create a reciprocating motion that draws water into the pump and then forces it out through a discharge pipe. However, this process can result in pulsations or fluctuations in the flow rate.
The air vessel is connected to the discharge pipe and acts as a storage reservoir for water. It contains a certain amount of compressed air, which acts as a cushion or buffer against the pulsations. When the piston or plunger pushes the water into the air vessel, the compressed air absorbs the excess pressure and helps maintain a steady flow of water.
2. Reduction of suction heat
While it is true that an air vessel can help in reducing the suction heat, it is not the primary purpose of its design. The primary function of an air vessel is to ensure a continuous supply of water at a uniform rate, as explained above.
3. Rise in delivery head
An air vessel does not directly contribute to the rise in delivery head. The delivery head is primarily determined by the pump's design, including the impeller or piston size, pump speed, and discharge pipe diameter.
4. Increase in supply of water
An air vessel does not increase the supply of water. Its main purpose is to stabilize the flow and maintain a continuous supply of water at a uniform rate.
In conclusion, the correct answer is option 'C': Continuous supply of water at a uniform rate. An air vessel in a reciprocating pump helps in stabilizing the flow, reducing pulsations, and ensuring a consistent and continuous supply of water.
An air vessel is an essential component used in reciprocating pumps to ensure a continuous supply of water at a uniform rate. It helps in stabilizing the flow of water and reducing the pulsations that are commonly associated with reciprocating pumps. Let's understand the role of an air vessel in more detail.
1. Continuous supply of water at a uniform rate
The primary function of an air vessel in a reciprocating pump is to provide a continuous supply of water at a uniform rate. Reciprocating pumps operate by using a piston or plunger to create a reciprocating motion that draws water into the pump and then forces it out through a discharge pipe. However, this process can result in pulsations or fluctuations in the flow rate.
The air vessel is connected to the discharge pipe and acts as a storage reservoir for water. It contains a certain amount of compressed air, which acts as a cushion or buffer against the pulsations. When the piston or plunger pushes the water into the air vessel, the compressed air absorbs the excess pressure and helps maintain a steady flow of water.
2. Reduction of suction heat
While it is true that an air vessel can help in reducing the suction heat, it is not the primary purpose of its design. The primary function of an air vessel is to ensure a continuous supply of water at a uniform rate, as explained above.
3. Rise in delivery head
An air vessel does not directly contribute to the rise in delivery head. The delivery head is primarily determined by the pump's design, including the impeller or piston size, pump speed, and discharge pipe diameter.
4. Increase in supply of water
An air vessel does not increase the supply of water. Its main purpose is to stabilize the flow and maintain a continuous supply of water at a uniform rate.
In conclusion, the correct answer is option 'C': Continuous supply of water at a uniform rate. An air vessel in a reciprocating pump helps in stabilizing the flow, reducing pulsations, and ensuring a consistent and continuous supply of water.
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Air vessel is used in a reciprocating pump to obtaina)Reduction of suction heatb)Rise in delivery headc)Continuous supply of water at uniform rated)Increase in supply of waterCorrect answer is option 'C'. Can you explain this answer?
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