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  • Users: nick262b
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  1. nick262b

    Moments on spherical ends/ellipsoidal heads

    Hi all, Can anyone point me in the right direction for assessing moment loads on a dished/ellipsoidal end, such as over rotation of the dished end flange due to excessive bolt load? (in this case for a floating head heat exchanger) Can you use ASME VIII flange design calcs and if so how does...
  2. nick262b

    CAESER II Cnodes not working no forces at node in restraint summary?

    Hi Guys, I am modelling a section of pipework that is connected to a nozzle on a heat exchanger vessel with the aim of checking nozzle loads with and without a spring hanger. In order to account for the thermal expansion of the vessel I have modelled the exchanger as rigid elements fixed to an...
  3. nick262b

    Low temperature assessment - Looking for advice - B 31.3 Stress ratio

    Hi everyone, thanks for taking the time to read this thread. Background: Production manifold produced Circa 1990 by hot isostatic press method and welding sections together. Certified to B 31.3 as opposed to a pressure vessel code. Material S31803. Op temp -36deg and charpy testing would have...
  4. nick262b

    Driving me insane " marks and Chr(34)

    Hi guys, So this is driving me insane I have a macro which is exporting to a text file and I need the first line to be: <ProjectInput xmlns="http://tempuri.org/ProjectInput.xsd"> I have tried the following codes with the following responses: As expected Cells(1, 1).Value = "<ProjectInput...
  5. nick262b

    If and else blocks and embedded loops

    Hi guys, I have a large spreadsheet of data that I am trying to extract data from and put into .txt files for a programme I have got for joint analysis. My problem is that I have one cell that informs me whether or not the joint is on the shell or the channel of a heat exchanger. Depending on...
  6. nick262b

    Iterate a solution to ASME design code in mathcad (whole workbook while loop possible?)

    Hi everyone, I have a working version of some ASME design code I have programmed into mathcad but am having trouble trying to figure out if I can use the code to iterate a solution. There is a variable lets say X that is defined very early on in the code as a user input/initial value and is in...
  7. nick262b

    ASME B16.5 pressure ratings &lt;&lt; ASME 8

    I was doing some work today which involved assessing several piping runs to see if a 150 class line was good for 300 class pressures so I could produce an in service justification. When a standard B16.5 #150 flange is assessed using the criteria in ASME 8, depending on bolt force e.g. 50%...

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