What is the difference between stalling and surging in rotary compressions ?
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Answer Posted / Rashmi Singh
Stalling in a rotary compression occurs when the airflow through the compressor is insufficient to maintain the impeller's speed, leading to flow separation and a reduction in pressure. Surging, on the other hand, is an oscillatory phenomenon where the compressor alternately chokes (reduced flow) and surges (momentary reverse flow). This instability can cause mechanical damage to the compressor.
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