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  • Users: Casimo5
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  1. Casimo5

    How to model Dissolved O2 in Water using Hysys

    I would like to model the amount of dissolved oxygen (DO) in water for the purpose of simulating a deoxygenation vacuum tower. Can anyone tell me what the best fluid package to use for this?
  2. Casimo5

    Blocked In Exchanger Boil-Off Rate

    In the case of an gas/liquid exchanger where the gas is the hot fluid and is on the tube side, and water is the cold fluid on the shell side, I am trying to calculate the relief rate when the water side is blocked in and the gas is still flowing. The gas is at a temperature where I would expect...
  3. Casimo5

    WHB Tube Rupture, possible 2-phase flow at PSV?

    I have a case where the high pressure side is BFW, on the shell, and flue gas in the tubes (low pressure side). If there is a tube rupture, high pressure BFW will go to the low pressure side and flash across the rupture. Using Hysys simulation, I calculated the percent flashing that occurs...
  4. Casimo5

    Atmospheric Storage Drum Vent/Overflow

    I have designed an atmospheric storage drum with a vent and a separate overflow line. The client has requested that the vent and overflow lines be combined into a single nozzle. We currently do not have an argument against this arrangement other than the cost of the engineering hours to modify...
  5. Casimo5

    Mounded Storage Application

    I am trying to find information on mounded storage. More specifically, mounded storage being used to reduce spacing requirements. For example, if a LPG bullet is required to be 100 meters from a fence line, does having that same bullet in a mounded application reduce the spacing requirement...
  6. Casimo5

    Flow Meter Placement

    When designing a flow control run in a pipe, where would be the ideal place for the flow meter? Upstream or downstream of the control valve? Do the flow rates make a difference? What about the fluid? In this case I am controlling the flow of steam to a reboiler that is currently on...
  7. Casimo5

    Leak Testing A Heat Exchanger

    If it is suspected that a tube or tubes are leaking inside a shell/tube heat exchanger, what impact, if any, do the testing conditions have if they are not the same as the operating conditions. In our case, we have an exchanger that is suspect. The exchanger has cooling water in the tubes, and...
  8. Casimo5

    RSLogix Frameworks help

    Is anyone out there familiar with RSLogix Frameworks Function Builder and Diagram Developer? I have created a program with Diagram Developer and I want to test it before exporting it to my online project and subsequently downloading it to the PLC. I would like to know if there is a...
  9. Casimo5

    Liquid falling in a pipe

    I have a situation where liquid (anywhere between 15 gpm and 52 gpm) is falling about 50' from one vessel to another (both open to atmosphere via 3/4" vents) through a 3" pipe. The liquid is oil with trace amounts of water and methanol entrained. At high rates (52 gpm), the falling liquid...

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