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chemengg
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Join Date: Dec 2008
Posts: 16

Compressor Surge Control

12/19/2008 1:18 PM

hi!

i wanted to know what actually surging phenomenon in air compressors is? why does it happen? what damage does it cause?and what can be done to control it?

plz help!
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Doan Ngoc Son
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Join Date: Dec 2008
Posts: 22
#2

Re: Compressor Surge Control

12/20/2008 3:40 AM

Dear chemengg

Compressor surge occurs when the developed compressor head (H) drops below the network resistance (discharge pressure). Surge is a fluctuation of flow and pressure and it causes overheating and damages; it may be violent enough to damage a compressor in a few cycles. Surging gives cyclic flow, back-flow, high vibrations, pressure shocks and rapid temperature increase.

Normally Compressor surge commonly occurs with Centrifugal compressor. To avoid this case you need to provide anti-surge control system for compressor. Which air compressor, that is very simple case, The methods for accomplishing surge control are a blow-off to atmosphere or recirculation from the compressor outlet to the inlet. If you want to known the detail of anti-surge system for specific case, pls inform me

best regards,

D. N. Son
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chemengg
Active Contributor

Join Date: Dec 2008
Posts: 16
#3
In reply to #2

Re: Compressor Surge Control

12/20/2008 12:48 PM

thanks mr. son. i would like to know the details regarding compressor surging. could you help me....
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yesyen
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Popular Science - Evolution - New Member

Join Date: Jul 2006
Location: India-Chennai.
Posts: 722
Good Answers: 30
#4
In reply to #3

Re: Compressor Surge Control

12/20/2008 1:23 PM

This screen-shot might give more understanding...

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 A picture worth thousand words: needless to say if it is animated.
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Anonymous Poster
#5
In reply to #2

Re: Compressor Surge Control

07/31/2009 10:21 PM

This is a good simple answer. Thanks
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