E3S Web Conf.
Volume 82, 201913th International Conference on Boiler Technology (ICBT Poland 2018)
|Number of page(s)||8|
|Published online||01 February 2019|
Analysis of superheater tubes failure
Sumitomo SHI FW Energia Polska, Stress Department S.Staszica 31, 41-200 Sosnowiec
2 Sumitomo SHI FW Energia Polska, Boiler Engineering and Layout Department S.Staszica 31, 41-200 Sosnowiec
* Corresponding author: firstname.lastname@example.org
Failures of boiler pressure parts, which working in high temperature and pressure conditions are often caused by overheating or corrosion. These two parameters are decisive, but not the only ones. Local stress concentration also depends on the type of headers support and external loads from pipelines. Boiler pressure parts subjected to all loads mentioned before are steam superheaters. Thermal expansion, high pressure and temperature lead to shortening superheaters lifetime. In the places with significant stress caused by all load combinations it is difficult to predict creep strains and material structure changes. This paper shows superheater in which considering external loads from pipeline and their influence on the stress concentration in the superheater tubes. This article also shows steel S304H creep analysis for 100k [h] results and creep equation with experimental developed constants.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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