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AutoPIPE Wiki 05. How good are the results from TTA?
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            • 01. Steps required to perform a Thermal Transient Analysis (TTA) in AutoPIPE
            • 02. When AutoPIPE calculated the gradient does it uses TTA Pipe & Insulation at room temperature?
            • 03. Would you please explain to me what is the difference between ambient and room temperature for TTA in AutoPIPE?
            • 04. What is the correct ambient temp for use with TTA analysis in AutoPIPE?
            • 05. How good are the results from TTA?
            • 06. Is the through wall gradient analysis output (delta T1, delta T2, Ta and Tb) automatically accounted for in the flange design in AUTOPIPE?
            • 07. Can a technical justification be provided for ignoring Delta T2 variation whenever the maximum linear temp variation is negative?
            • 08. Can AutoPIPE TTA be used to analyze a Pipeline caring steam?
            • 09. How manually create and import a .TTP thermal transient profile file using AutoPIPE?
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    05. How good are the results from TTA?

    Applies To
    Product(s): AutoPIPE,
    Version(s): 2004, XM, & V8i
    Environment: N/A
    Area: Load Case
    Subarea:
    Original Author: Bentley Technical Support Group

    Problem:

    How good are the results from TTA?

    Answer:

    TTA results are based on the calculations that originally appeared in ADLPipe. ADLPipe provides verification or correlation of its results with published data. In case of thermal transient analysis, dT1 and dT2 wall gradients are compared with results of dT1 and dT2 published in "Transient Thermal Gradient Stresses" by Ernest B. Branch in "Heating, Piping and Air Conditioning, Vol. 43, 1971, pp. 132-136" which were calculated using a simplified infinite flat plate model. The results compared well. Similar comparisons were performed for temperature dependent fil coefficient values with published values. The verification on AutoPIPE side is that the results generated by AutoPIPE shall match with those generated by ADLPipe which has been verified against published data.

    See Also

    Bentley AutoPIPE

    External Links

    Bentley Technical Support KnowledgeBase

    Bentley LEARN Server

    Comments or Corrections?

    Bentley's Technical Support Group requests that you please submit any comments you have on this Wiki article to
    the "Comments" area below. THANK YOU!

    • Load Case
    • TTA
    • AutoPIPE
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    • Mike Dattilio Created by Bentley Colleague Mike Dattilio
    • When: Mon, Dec 8 2014 10:58 AM
    • Revisions: 1
    • Comments: 0
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