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  • Users: RicoB
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  1. RicoB

    BKU Type Chiller - Propane (Shell) level below top of tube bundle

    Hello Don The chiller is designed with 10% excess duty. The argument what was brought up to me was to operate at a lower level was and to slightly super heat the propane vapor so that no condensation in the suction line occurs. However, there is a suction scrubber too, which makes this...
  2. RicoB

    When distributor between beds needed and when not?

    Hello EmmanuelTop Thanks for your response. I do have a distributor on top of the upper bed but not between both beds. The only different between both beds is the type/size of packing. However, I will have a look in the book you refer to. Thanks
  3. RicoB

    When distributor between beds needed and when not?

    Hello Everybody I was wondering when a distributor between each bed is necessary and when not. Is there something like a rule of thumb by bed height or bed diameter or packing? I have a De-Ethanizer with two bed but with out distributor between. Thanks Rico
  4. RicoB

    BKU Type Chiller - Propane (Shell) level below top of tube bundle

    Hello StraighOuttaND Less horsepower makes somehow sense as you would need to compress less volume. You simply decrease the flow but keep the same retention time. Subsequently the efficiency would increase. I would not say you save HP as you design the chiller at this level anyway. Maybe...
  5. RicoB

    BKU Type Chiller - Propane (Shell) level below top of tube bundle

    Thanks Gcastan I just got told the upper row of the bundle has to be free of liquid. I could not make any sense out of it and tired to find and answer here. What is the standard for BKU chiller? How are they operated normally? It seems there are different opinion about it.
  6. RicoB

    BKU Type Chiller - Propane (Shell) level below top of tube bundle

    Thanks Gcastan I just got told the upper row of the bundle has to be free of liquid. I could not make any sense out of it and tired to find and answer here. What is the standard for BKU chiller? How are they operated normally? It seems there are different opinion about it.
  7. RicoB

    BKU Type Chiller - Propane (Shell) level below top of tube bundle

    Thanks Emmanuel As my question was, why the level has to be below, So I could not relate (2) and (3) to my question. The chiller I have here does not have a weir, it is level controlled by an LIT. However, out of your explanation, for me the most reasonable explanation would be to slightly...
  8. RicoB

    BKU Type Chiller - Propane (Shell) level below top of tube bundle

    Hello Emmanuel I do understand number 1 as reason to keep the liquid level below the upper tube rows. Number 2 would rather speak against it. My understanding is, if the upper tube row is not covered by liquid propane, the propane vapor phase will be super heated by the upper tube rows. So...
  9. RicoB

    BKU Type Chiller - Propane (Shell) level below top of tube bundle

    Hello everybody I have a BKU (Kettle style) chiller in a gas refrig. plant. Tube site is NGL, shell site is propane as refrigeration medium. I just learned that in a BKU (Kettle style) chiller the propane (shell) level is controlled to just below the top of the tube bundle. I would like to...
  10. RicoB

    P&ID XC Symbol - when and how to use

    Hello Everybody First of all thanks to all of you for taking the time to comment on this. I really appreciate this! I finally found out a couple thing. - XC is use as input and output in the panel and it converts the signal from electric to data. So the dashed line in-between the XC's actually...
  11. RicoB

    P&ID XC Symbol - when and how to use

    Hello all I recently joint a new company and I try to get my head around their P&ID, especially their control symbols. I have seen in their P&ID the square with diamond and XC inside. For example : Could someone please explain me how and when to use the XC symbol? I am also confused about...
  12. RicoB

    Threaded Ball Valve Class 2000 vs 3000 CWP

    Hello everybody I am new in North America and try to get my head around all the standards, classes for pipes, fittings and valves. I was reading a lot about abusing the # symbol for classes and so on. However, there are still a couple things I don't understand. 1. Where can I find the the...

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