On the reliability of creep damage assessment of power plant steam pipings

Pertti Auerkari, Paula Vierros, Jorma Salonen

Research output: Book/ReportReport

Abstract

The replica technique is an attractive method for the assessment of safety and minimum life time of creep loaded power plant components. This technique must be applied with care to ensure the observation of maximum creep damage since the replica inspections are spotwise in character. If properly carried out, the replica method has the advantage of not necessarily requiring information about the stress and temperature history of the components. The assessment rules that are used for the first inspections are conservative enough but even more damage can usually be tolerated especially in small and old power plants.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages23
ISBN (Print)951-38-1952-3
Publication statusPublished - 1984
MoE publication typeD4 Published development or research report or study

Publication series

SeriesValtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports
Number248
ISSN0358-5077

Fingerprint

Steam power plants
Power plants
Creep
Inspection
Temperature

Keywords

  • nondestructive tests
  • thermal power plants
  • electric power plants

Cite this

Auerkari, P., Vierros, P., & Salonen, J. (1984). On the reliability of creep damage assessment of power plant steam pipings. Espoo: VTT Technical Research Centre of Finland. Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports, No. 248
Auerkari, Pertti ; Vierros, Paula ; Salonen, Jorma. / On the reliability of creep damage assessment of power plant steam pipings. Espoo : VTT Technical Research Centre of Finland, 1984. 23 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 248).
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Auerkari, P, Vierros, P & Salonen, J 1984, On the reliability of creep damage assessment of power plant steam pipings. Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports, no. 248, VTT Technical Research Centre of Finland, Espoo.

On the reliability of creep damage assessment of power plant steam pipings. / Auerkari, Pertti; Vierros, Paula; Salonen, Jorma.

Espoo : VTT Technical Research Centre of Finland, 1984. 23 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 248).

Research output: Book/ReportReport

TY - BOOK

T1 - On the reliability of creep damage assessment of power plant steam pipings

AU - Auerkari, Pertti

AU - Vierros, Paula

AU - Salonen, Jorma

PY - 1984

Y1 - 1984

N2 - The replica technique is an attractive method for the assessment of safety and minimum life time of creep loaded power plant components. This technique must be applied with care to ensure the observation of maximum creep damage since the replica inspections are spotwise in character. If properly carried out, the replica method has the advantage of not necessarily requiring information about the stress and temperature history of the components. The assessment rules that are used for the first inspections are conservative enough but even more damage can usually be tolerated especially in small and old power plants.

AB - The replica technique is an attractive method for the assessment of safety and minimum life time of creep loaded power plant components. This technique must be applied with care to ensure the observation of maximum creep damage since the replica inspections are spotwise in character. If properly carried out, the replica method has the advantage of not necessarily requiring information about the stress and temperature history of the components. The assessment rules that are used for the first inspections are conservative enough but even more damage can usually be tolerated especially in small and old power plants.

KW - nondestructive tests

KW - thermal power plants

KW - electric power plants

M3 - Report

SN - 951-38-1952-3

T3 - Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports

BT - On the reliability of creep damage assessment of power plant steam pipings

PB - VTT Technical Research Centre of Finland

CY - Espoo

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Auerkari P, Vierros P, Salonen J. On the reliability of creep damage assessment of power plant steam pipings. Espoo: VTT Technical Research Centre of Finland, 1984. 23 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 248).