Thermal gradient calculations
Level 1 pipeworks calculations - thermal and fatigue gradients

Quizzed article REF: AF1682 V1

Thermal gradient calculations
Level 1 pipeworks calculations - thermal and fatigue gradients

Author : Irénée CORNATON

Publication date: February 10, 2016, Review date: April 26, 2021 | Lire en français

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4. Thermal gradient calculations

4.1 Partial differential equations

Heat transfer from a thermal transient load in an infinite hollow cylinder is governed by the following equations:

\frac{\partial T}{\partial t} = β (\frac{\partial^{2} T}{\partial r^{2}} + \frac{1}{r} \frac{\partial T}{\partial r})

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Bibliography

(1) - U.S. Nuclear Regulatory Commission - Combining Modal Responses and Spatial Components in Seismic Response Analysis. - Regulatory Guide 1.92 (2006).
(2) - BIANCHI (A.-M.), FAUTRELLE (Y.), ETAY (J.) - Transferts thermiques. - Eyrolles...

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