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Recent content by Elise

  1. Elise

    ASME VIII UCS 66 Curves

    Does anybody know how I can EXTRAPOLATE Fig UCS-66 Curves upto 250mm thickness
  2. Elise

    API 661 Airfin - PWHT needed for new header nozzle?

    gr2vessels please clarify how you confirm No PWHT required. Where is this corroborated ?
  3. Elise

    torsion of Vessel Base ring

    Imagine looking side on to a Channel section ring, angled at 60 degrees from horizontal. On one is a concentrated moment. I am after a method to determine if there would be local torsion in the ring at that point, or would the section modulus.rigidity provide overstiffness to overcome. as the...
  4. Elise

    torsion of Vessel Base ring

    When erecting vessels with base rings, around 60-70 degrees from horizontal, the tailing lug load can be resolved into radial and Maximum longitudinal value components. Taking the longitudinal component parallel to the vessel centreline, multipled by the distance from tailing lug hole to skirt...
  5. Elise

    Exchange Flange breaking force

    We have 3 inline exchangers. As part of the maintenance cycle the middle exchanger will remain in place, and the two outside will be slid away from the middle on bearings. Does anyone know how to calculate the initial required flange jacking screw breaking forces. Thanks
  6. Elise

    Partial Volumes of frustums

    By partial volume. Image a layer of liquid that does not totally fill the frustum.. There are formulas for calculating partila volumes of horizontal pipes for the frustum its totally different ?
  7. Elise

    Partial Volumes of frustums

    The frustum is used in a hotrizontal shell and tube heat exchanger kettle. so the bottom of the frustum is parallel with the floor...
  8. Elise

    Partial Volumes of frustums

    Does anybody know how the calculate the partial volumes of HORIZONTAL frustums. a) for true conical frustum b) eccentric frustum - see previous post.
  9. Elise

    Surface area and volume of eccentric conical frustum

    Image a horizontal eccentric conical frustum where one side is flat and parallel with the ground, and the other side sloped changing diameter from 600mm to 1200mm over a length of 1500mm. does anybody know how to calculation the curved surface area, and volume. #Thanks
  10. Elise

    Thermal Gradient in Platform Support

    I have a De-ethaniser Column operating at Minus 20 Deg C. The top platform is supported from an inverted skirt welded onto the top tan line. The inverted skirt is 667mm long and has a flat ring onto which the platform is supported. If the Column operates at Minus 20 Deg C, how can I calculated...

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