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Why does the power of axial flow pump decrease with the increase of flow rate?

date:2020-04-01 reading volume:775
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Why does the power of axial flow pump decrease with the increase of flow rate? Under the condition of low flow rate, the internal loss of axial flow pump is very big, and the pump efficiency is low.

Why does the power of axial flow pump decrease with the increase of flow rate? Under the condition of low flow rate, the internal loss of axial flow pump is very big, and the pump efficiency is low. With the increase of flow rate, the pump efficiency is very high under the rated condition, so the shaft power of the pump is high under the condition of low power.

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