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管径の計算は、推奨流速に基づいて行うべきか、それとも推奨される100メートルあたりの圧力損失に基づいて行うべきか?

2017-11-30View Original

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DN25、入口0.8MPaGの空気、出口は大気圧。 HG/T20570圧縮ガス、p=0.6~1MPa、推奨流速は10~15m/s。 ブルーブック0.35
Reply #22017-12-01
圧損が大きすぎて非経済的なので、より太い管を選ぶことができる。必要なガス流量に応じて設計する必要があります。流速は推奨値に過ぎず、小さい方が良く、大きくてはなりません。そのため、もう少し低い流速を選ぶことができます。

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