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In a two-stage reciprocating air compressor, the suction and delivery pressures are 1 and 4 bar respectively. For maximum efficiency, the intercooler pressure is  
  • a)
    1.5 bar  
  • b)
    2.0 bar  
  • c)
    2.5 bar  
  • d)
    3.0 bar 
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
In a two-stage reciprocating air compressor, the suction and delivery ...
Calculation of Intercooler Pressure in Two-Stage Reciprocating Air Compressor
In a two-stage reciprocating air compressor, the intercooler is used to cool the air between the first and second stages to increase efficiency. Let's calculate the intercooler pressure based on the given suction and delivery pressures.

Given Data:
- Suction Pressure (P1) = 1 bar
- Delivery Pressure (P2) = 4 bar

Calculation:
The ideal intercooler pressure can be calculated using the formula:
Intercooler Pressure = √(P1 * P2)
Substitute the given values:
Intercooler Pressure = √(1 * 4)
Intercooler Pressure = √4
Intercooler Pressure = 2 bar
Therefore, the intercooler pressure for maximum efficiency in a two-stage reciprocating air compressor is 2 bar, which corresponds to option B.
This intercooler pressure helps in reducing the work input required for compression in the second stage, leading to improved efficiency of the compressor system.
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In a two-stage reciprocating air compressor, the suction and delivery pressures are 1 and 4 bar respectively. For maximum efficiency, the intercooler pressure is a)1.5 bar b)2.0 bar c)2.5 bar d)3.0 barCorrect answer is option 'B'. Can you explain this answer?
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