Publication detail

INFLUECNE OF TEMPERATURE DIFFERENCES OF MIXED STREAMS UPON T-JUNCTION DAMAGE

NEKVASIL, R.

Original Title

INFLUECNE OF TEMPERATURE DIFFERENCES OF MIXED STREAMS UPON T-JUNCTION DAMAGE

Type

journal article - other

Language

English

Original Abstract

The problem of thermal fatigue in pipe connections under the influence of streams mixing is one of the most discussed problems on international conferences. Numerous failures occur in industry as a result of this damage mechanism. It is caused by frequent stress changes developed by an effect of non-stationary thermal fields. The degree of damage is greatly dependent on characteristic of material, geometrical design of a pipe connection in operational conditions. The report is dealing with influence of temperature differences of mixing media streams upon pipe material damage cumulation. It is focused on a perpendicular T-junction made of ferritic steel, which is protected inside with an anticorrosive weld deposit from austenitic steel. Six cases of temperature differences will be considered for particular operational conditions with a step of 50 centigrade, and the damage cumulation process will be observed. Thanks to it, it will be possible to judge better the meaning of streams temperature differences.

Keywords

thermal fatigue, damage cumulation, steams mixing, fluid structure interaction, CFD, FEM

Authors

NEKVASIL, R.

RIV year

2008

Released

30. 9. 2008

Publisher

Engineering Academy of the Czech Republic

Location

Brno

ISBN

1802-1484

Periodical

Engineering Mechanics

Year of study

15

Number

4

State

Czech Republic

Pages from

241

Pages to

248

Pages count

8

BibTex

@article{BUT48827,
  author="Richard {Nekvasil}",
  title="INFLUECNE OF TEMPERATURE DIFFERENCES OF MIXED STREAMS UPON T-JUNCTION DAMAGE",
  journal="Engineering Mechanics",
  year="2008",
  volume="15",
  number="4",
  pages="241--248",
  issn="1802-1484"
}