Influence of Steam-Side Oxid Scales on Creep Life of Boiler Superheater Tube
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F18%3APU127722" target="_blank" >RIV/00216305:26210/18:PU127722 - isvavai.cz</a>
Result on the web
<a href="http://mit.imt.si/Revija/izvodi/mit181/nad.pdf" target="_blank" >http://mit.imt.si/Revija/izvodi/mit181/nad.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.17222/mit.2017.106" target="_blank" >10.17222/mit.2017.106</a>
Alternative languages
Result language
angličtina
Original language name
Influence of Steam-Side Oxid Scales on Creep Life of Boiler Superheater Tube
Original language description
Creep life is a limiting factor in case of boiler tubes operating above creep temperature, and, for a given material, it generally is determined by the actual operating temperature and stress. Standard approaches to calculation of tube creep life take into account mainly the stress caused by pressure loading and mean temperature in the tube wall. However, estimation of the temperature and stress may be difficult in water tube boilers, because oxide scales tend to form on inner surfaces of the tubes exposed to steam and indirectly affect the resulting creep life. Because scales increase thermal resistance of a tube wall and, consequently, also wall temperature, creep life is reduced. Moreover, presence of oxide scales leads to higher hydraulic resistance of the tube, which can cause further increase in temperature in some tubes of the bundle if the oxide scale growth rate is not uniform. Additionally, elements increasing creep strength may leach out of the surface should the scales be porous, thus inducing even more pronounced decrease in creep life. This paper investigates effects of oxide scales on creep life of boiler tubes in cross flow. Thermal and stress conditions in tubes are thoroughly investigated using analytical as well as numerical approaches.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20301 - Mechanical engineering
Result continuities
Project
<a href="/en/project/LO1202" target="_blank" >LO1202: NETME CENTRE PLUS</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materiali in tehnologije
ISSN
1580-2949
e-ISSN
1580-3414
Volume of the periodical
52
Issue of the periodical within the volume
1
Country of publishing house
SI - SLOVENIA
Number of pages
4
Pages from-to
43-46
UT code for WoS article
000426282800010
EID of the result in the Scopus database
2-s2.0-85041559374