What is surging in centrifugal compressor. how its happened
and how to avoid it.?

Answer Posted / ahmed zaky

Surge occurs at the lower extreme of the compressor flow
range where the gradient of a compressor’s pressure
characteristic becomes positive; therefore any reduction
in mass flow rate will result in a reduction in the outlet
pressure from the compressor accompanied by a reversal of
the high pressure flow downstream of the compressor.

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