Evaluating Thermal Pressure Changes in Liquid Packed Piping

by Rodney F. Wedge, Willbros Butler Engineers, Inc, United States,

Document Type: Proceeding Paper

Part of: Pipeline Design and Installation


Theoretical and practical issues involved with the phenomenon of thermally induced pressure change in closed piping systems are investigated. The mathematical derivation of the applicable expressions is used to illustrate points of interest to designers. The language of the American National Standards Institute (ANSI) piping design codes is discussed as it applies to typical situations. Sources of useful physical design data are mentioned. Tables and figures are presented to illustrate how the ANSI piping design codes could be more explicit about this subject.

Subject Headings: Thermal effects | Pipes | Standards and codes | Mathematics

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