Interstage coolers are provided in a multistage compressor to____________________?
Correct answer: D. Save power in compressing a given volume to a given pressure
- A. None of these
- B. Cool the delivered air
- C. Achieve the exact delivery pressure
- D. Save power in compressing a given volume to a given pressure
Explanation
Interstage cooling lowers the temperature and specific volume of the gas before the next compression stage, reducing the work required for a given final pressure. It also improves volumetric efficiency, but saving compression power is the main purpose.
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