1. bookVolume 114 (2017): Issue 8 (August 2017)
Journal Details
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Journal
eISSN
2353-737X
First Published
20 May 2020
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1 time per year
Languages
English
Open Access

An Analysis of the Steam Superheater Coil Operation Depending on Different Methods of Coil Support

Published Online: 26 May 2020
Volume & Issue: Volume 114 (2017) - Issue 8 (August 2017)
Page range: 187 - 192
Journal Details
License
Format
Journal
eISSN
2353-737X
First Published
20 May 2020
Publication timeframe
1 time per year
Languages
English
Abstract

The paper presents the main types of power boiler steam superheater loads together with relevant standards applicable to superheater calculations. In the case of horizontal superheaters, due to their thermal expansion and assembly errors which are the effect of non-uniform support of the hanger tubes, extra loads are generated on the coil pipes. An FEM analysis performed for a selected superheater structure indicates that maximum stress values and the location where the stresses occur depend on the method of support of the superheater tubes. It is shown that maximum stresses in this structural element can be reduced by introducing appropriate tension of hanger bars supporting the superheater hanger tubes.

Keywords

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