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  • Users: SJ1
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  1. SJ1

    Calcualating U for Firetube Boiler

    Good Morning, I am trying to calculate the Overall Heat Transfer Coefficienct (U) for a vertical firetube boiler. The boiler contains 61 (1.875" diameter) firetubes and is surrounded by a water jacket. Can someone provide some input on how I can calculate U? Thank you, SJ
  2. SJ1

    Electric Motor and VSD Relationship

    Hello Everyone, I am hoping someone can clarify some basic issues regarding motor operation for me. I have a conveyor that has installed on it 1 HP/1750 RPM 3 phase motor with a 40:1 Gear Reducer. I also have installed an inverter to vary the conveyor speed between 5 – 20 RPM. Is it correct...

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