Siberian Federal University

Issue

Journal of Siberian Federal University. Engineering & Technologies. 2018 11 (5)

Authors

Lipovka, Yury L.; Belilovets, Vitaly I.

Contact information

Lipovka, Yury L.: Siberian Federal University 79 Svobodny, Krasnoyarsk, 660041, Russia; ; Belilovets, Vitaly I.: Siberian Federal University 79 Svobodny, Krasnoyarsk, 660041, Russia

Keywords

heat supply network; thermal expansions of heat pipes; compensation of thermal pipe deformations; radial expansion bends

Abstract

A methodology for structural analysis of compensation of thermal expansions used for channel or aboveground sections of heat network pipelines with radial expansion bends has been proposed. The methodology is based on the methods of structural mechanics and allows to find technically based dimensions of radial expansion bends. Increased flexibility of the heat pipe angles and stress-raisers of additional bending stresses have been taken into account, the functional and graphical dependencies of the stress caused by thermal deformations of the heat pipe section with the U-shaped radial expansion bends on the temperature of the coolant have been presented. The authors developed and presented the computer program used for calculating radial expansion bends. Due to the program analyzing the model of a heat pipe section with a radial U-shaped expansion bend has been calculated. Comparison of the calculation results with the results obtained by means of the well-known software system “Start” developed by the scientific-and-technological enterprise “Pipeline” has shown a sufficient convergence of results, which confirms the efficiency of the presented methodology and computer program

Pages

604-618

Paper at repository of SibFU

https://elib.sfu-kras.ru/handle/2311/71595

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).