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  • Users: Sebra
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  1. Sebra

    high pressure saturated steam

    Thanks everyone for sharing your experience and thoughts. The reason that I raised this was because of an argue that I had with our design contractor. As I believe some level of formal stress analysis is required but they want to leave it to the installation contractor to do that. good points...
  2. Sebra

    high pressure saturated steam

    we are taking samples from a HP saturated steam line at ~7000kPa pressure and 500degC temp. as this is a sampling line it is only a 1/2" SS tube. the sample will be taken to the analyzer unit close by. Do we need to do stress analysis for the line or . we can use rule of thumb for supporting...
  3. Sebra

    Aircompressor aftercooler

    I am trying to get some understanding around the code that a air compressor aftercooler is fabricated to. these are small plate fin radiator type coolers that usually comes as part of the air compressor package. As we don't have much data on the aftercooler itself plus we had multiple failures...
  4. Sebra

    vessel re-rate

    Thanks for your responses. If it was in design phase I would have design it to 1.5MPag @ 200degC in the first place but it is too late now. I personally think 1.5MPag @200degC is the best practice however wanted to know that checking the design for 50kPag@ 200deg would be sufficient as well or...
  5. Sebra

    vessel re-rate

    I want to re-rate a vessel which is designed for 1.5 MPag @ 190degC. This vessel has another design criteria which is 50kPag @200degC which has been ignored during the design. to re-rate it, Should I only check the design for 50kPag@ 200degC or I need to rerate the vessel for 1.5MPag @ 190degC...
  6. Sebra

    Full diameter tubesheet vs single support tubesheet

    Can anyone help me to understand what are the advantagous of having a full diameter ( same diameter as girth flange with through bolts) tubesheet to single support tubesheet in a shell and tube heat exchanger? I am reviewing the design for AXU heat echanger and the vendor used single support...

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