Creep of the Steam Pipeline with Wall Thickness Nonuniformity

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Abstract:

The critical components of industrial plants, in this the high-pressure steam pipelines undergo continued destroy process. For this reason, an efficient diagnostic procedure during the whole operating period is required. Particularly, the most important are creep measurements performed periodically. The numerical simulations of steam pipeline creep phenomenon refer to the influence wall thickness nonuniformity on obtaining creep strain. The calculation was carried out with finite element model using computer software ANSYS Multiphysics. The obtained results present acceptable accordance with the long time measurements executed on the real object.

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Periodical:

Advanced Materials Research (Volumes 875-877)

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500-506

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February 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] EN 45510-7-1. Guide for procurement of power station plant, equipment and systems – Part 7-1: Pipework and valves – High pressure piping systems (1999).

DOI: 10.3403/01887242

Google Scholar

[2] G. Thoraval: Creep of high temperature steam piping: EDF Experience with fossil-fired power plants from 1955 to 1987, Nuclear Engineering and Design 116, North Holland, Amsterdam, pp.389-398. (1989).

DOI: 10.1016/0029-5493(89)90097-6

Google Scholar

[3] S. Łopata: Life of high-pressure steam pipelines. Cracow University of Technology, Scientific Notes, Mechanics No 81 (in Polish), Cracow (2001).

Google Scholar

[4] S. Łopata., M. Augustyniak, K. Kwintowski: The influence analysis of the steam pipeline cross-section ovality on their creep. Proceedings of the Sixth International Congress on Thermal Stresses, Volume 1, Vienna (2005), pp.409-412.

Google Scholar

[5] PN-H-74252: 1998. Seamless steel boiler tubes (in Polish).

Google Scholar

[6] Ansys Release 8. 0 Documentation.

Google Scholar

[7] A.A. Becker: Fundamental Tests of Creep Behavior, NAFEMS, Ref: R0027, Glasgow (1993).

Google Scholar

[8] Steel properties. Steel for low and high temperatures. Steel for power engineering. Series D, vol. I, part 1 (in Polish). Katowice (1978).

Google Scholar

[9] S. Łopata, K. Kwintowski: Creep of steam pipelines with ovality cross-sections, Technical Transactions – Mechanics (in Polish), Cracow University of Technology Press., No. 2-M, (2008), pp.181-190.

Google Scholar