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  1. Stuuus

    Pipeline Dewatering Liquid Velocity

    Hello, I am putting together a calcs spreadsheet for general pipeline services operations and have run across a problem. In the case of bulk dewatering, i.e. pigging the water out of the line with nitrogen, I need to calculate the back pressures of the MEG/MeOH slugs and also the water infront...
  2. Stuuus

    Gas flow formula - multiple diameters of pipe in series

    Hello, I am currently making a calculations spreadsheet for pipeline services and am thinking of how best to calculate gas flowrates. Liquid is simply the Darcy-Weisbach equation with Churchill (Darcy) Friction Factors. However when it comes to gas, for example the dewatering of a liquid-use...
  3. Stuuus

    Valves and Fittings Pressure Drop - Darby 3K Method - Flowmeters

    Good evening, Does anyone have any information on the Darby 3K method for the pressure drop due to valves and fittings pertaining to flowmeters of various types. Been unable to obtain K factors for these with this method. Any help appreciated. Best Regards, Stuart
  4. Stuuus

    Pipeline Flow - FDTF

    Good Evening, I am currently creating a new calculation spreadsheet, part of this is a back pressure calculator which shows the type of flow using the churchill friction factor, this is shown graphically on a moody diagram as per the below image. However, I have multiple pipeline sections with...

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