RBI and assessment of component life for high temperature service

Pertti Auerkari, Rami Pohja, Sanni Yli-Olli, Satu Tuurna, Pekka Pohjanne, Ulla McNiven, Stefan Husta

Research output: Contribution to conferenceConference articleScientific

Abstract

Risk-based inspection (RBI) can offer justified priorities in timing and targeting of in-service inspections and maintenance action for power and process plants. For this purpose, recommended procedures and tools are increasingly supported by the evolving standardization on risk based assessments and RBI. Successful RBI generally requires availability of background data on design, fabrication, operation and maintenance history, evaluation of the current condition and its expected deterioration in systems and components of interest, and expertise of the RBI team to conduct the assessments. This paper aims to show some RBI related observations, modelling and experiences when considering the accumulating damage, life-limiting mechanisms and failures in high temperature components of thermal power plants. An example is shown from a pilot scale application of RBI on a steam system of a combined heat and power (CHP) plant after more than 200 000 h of service. The implications and experiences are discussed in terms of the implemented inspection and maintenance actions, and perceived benefits of RBI.
Original languageEnglish
Publication statusPublished - 2016
Event42nd MPA-Seminar - Fit for Future: Energy challenge - Materials challenge - Leinfelden-Echterdingen, Germany
Duration: 4 Oct 20165 Oct 2016

Seminar

Seminar42nd MPA-Seminar - Fit for Future: Energy challenge - Materials challenge
CountryGermany
CityLeinfelden-Echterdingen
Period4/10/165/10/16

Fingerprint

Inspection
Temperature
Cogeneration plants
Standardization
Deterioration
Power plants
Steam
Availability
Fabrication

Keywords

  • risk based inspection
  • life assessment

Cite this

Auerkari, P., Pohja, R., Yli-Olli, S., Tuurna, S., Pohjanne, P., McNiven, U., & Husta, S. (2016). RBI and assessment of component life for high temperature service. Paper presented at 42nd MPA-Seminar - Fit for Future: Energy challenge - Materials challenge, Leinfelden-Echterdingen, Germany.
Auerkari, Pertti ; Pohja, Rami ; Yli-Olli, Sanni ; Tuurna, Satu ; Pohjanne, Pekka ; McNiven, Ulla ; Husta, Stefan. / RBI and assessment of component life for high temperature service. Paper presented at 42nd MPA-Seminar - Fit for Future: Energy challenge - Materials challenge, Leinfelden-Echterdingen, Germany.
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Auerkari, P, Pohja, R, Yli-Olli, S, Tuurna, S, Pohjanne, P, McNiven, U & Husta, S 2016, 'RBI and assessment of component life for high temperature service' Paper presented at 42nd MPA-Seminar - Fit for Future: Energy challenge - Materials challenge, Leinfelden-Echterdingen, Germany, 4/10/16 - 5/10/16, .

RBI and assessment of component life for high temperature service. / Auerkari, Pertti; Pohja, Rami; Yli-Olli, Sanni; Tuurna, Satu; Pohjanne, Pekka; McNiven, Ulla; Husta, Stefan.

2016. Paper presented at 42nd MPA-Seminar - Fit for Future: Energy challenge - Materials challenge, Leinfelden-Echterdingen, Germany.

Research output: Contribution to conferenceConference articleScientific

TY - CONF

T1 - RBI and assessment of component life for high temperature service

AU - Auerkari, Pertti

AU - Pohja, Rami

AU - Yli-Olli, Sanni

AU - Tuurna, Satu

AU - Pohjanne, Pekka

AU - McNiven, Ulla

AU - Husta, Stefan

PY - 2016

Y1 - 2016

N2 - Risk-based inspection (RBI) can offer justified priorities in timing and targeting of in-service inspections and maintenance action for power and process plants. For this purpose, recommended procedures and tools are increasingly supported by the evolving standardization on risk based assessments and RBI. Successful RBI generally requires availability of background data on design, fabrication, operation and maintenance history, evaluation of the current condition and its expected deterioration in systems and components of interest, and expertise of the RBI team to conduct the assessments. This paper aims to show some RBI related observations, modelling and experiences when considering the accumulating damage, life-limiting mechanisms and failures in high temperature components of thermal power plants. An example is shown from a pilot scale application of RBI on a steam system of a combined heat and power (CHP) plant after more than 200 000 h of service. The implications and experiences are discussed in terms of the implemented inspection and maintenance actions, and perceived benefits of RBI.

AB - Risk-based inspection (RBI) can offer justified priorities in timing and targeting of in-service inspections and maintenance action for power and process plants. For this purpose, recommended procedures and tools are increasingly supported by the evolving standardization on risk based assessments and RBI. Successful RBI generally requires availability of background data on design, fabrication, operation and maintenance history, evaluation of the current condition and its expected deterioration in systems and components of interest, and expertise of the RBI team to conduct the assessments. This paper aims to show some RBI related observations, modelling and experiences when considering the accumulating damage, life-limiting mechanisms and failures in high temperature components of thermal power plants. An example is shown from a pilot scale application of RBI on a steam system of a combined heat and power (CHP) plant after more than 200 000 h of service. The implications and experiences are discussed in terms of the implemented inspection and maintenance actions, and perceived benefits of RBI.

KW - risk based inspection

KW - life assessment

M3 - Conference article

ER -

Auerkari P, Pohja R, Yli-Olli S, Tuurna S, Pohjanne P, McNiven U et al. RBI and assessment of component life for high temperature service. 2016. Paper presented at 42nd MPA-Seminar - Fit for Future: Energy challenge - Materials challenge, Leinfelden-Echterdingen, Germany.