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Pressure Vessel thickness using (operating press./temp., material, OUTSIDE diameter)

  1. Jul 29, 2012 #1
    1. The problem statement, all variables and given/known data
    Problem: find the thickness of a Pressure Vessel.
    Given: Operating Pressure, Operating Temperature, Material type and Grade, and OUTSIDE Diameter/Radius


    2. Relevant equations
    q1. how to calculate Design Pressure/Temp. from Operating Pressure/Temp.?
    q2. how to calculate INSIDE Radius using OUTSIDE Radius (note that thickness is needed)?


    3. The attempt at a solution
    I tried to obtain the thickness of that pressure vessel using (ASME Code SEC.VIII, DIV.2, ARTICLE.2)'s formula, but it only takes INSIDE Diameter, so how can i obtain Inside Diameter to get the thickness.
    Or is there any other way that doesn't require INSIDE Diameter to get the thickness.
     
  2. jcsd
  3. Aug 5, 2012 #2

    rock.freak667

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    Homework Helper

    Re: Pressure Vessel thickness using (operating press./temp., material, OUTSIDE diamet

    You could use the OD in the equation and then subtract t to get the ID. Then just check to see if the calculated ID can withstand the pressure.
     
  4. Aug 5, 2012 #3
    Re: Pressure Vessel thickness using (operating press./temp., material, OUTSIDE diamet

    Why don't you guess a thickness which then provides an inside diameter. Go through the code calculations with the guessed thickness and see if you come up with the same ratings.

    If it's greater than 5 cubic feet there should be paperwork/records on it somewhere.
     
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