Practical aspects of applying risk-based approaches in asset management for heat exhangers

Satu Tuurna (Corresponding author), Pertti Auerkari, Rami Pohja, Aleksandar Jovanovic, Stefan Husta

Research output: Contribution to conferenceOther conference contributionProfessional

Abstract

Risk-based inspection and maintenance can help to achieve safe and economically viable plant operation by justifying and prioritizing actions, choices and schedules according to the associated risk. To manage the risk, the implemented inspections and maintenance actions aim to limit the probability of failure and its uncertainty. Failure statistics of similar components operating in similar environments may provide fair estimates of the probability of failure, but biased or lacking comparable statistics may require adjustment through additional measurements or expert information. In parallel, inspection and monitoring data can more directly help in assessing the evolution of probability of failure. Presented example is a tubular heat exchanger, with inspection and failure criteria considered for a full life cycle that included multiple inspections by the same inspecting party and equipment. Uneven distribution of in-service wall loss without changes in mechanisms or local loss rates nevertheless required a change of inspection strategy during the life cycle.
Original languageEnglish
Publication statusPublished - 29 May 2018
MoE publication typeNot Eligible
EventNACE 2nd European Event for the Corrosion Prevention : From the Industry to the Industry - Genoa, Italy
Duration: 27 May 201829 May 2018
Conference number: 2
http://www.naceitalia.it/GENOA2018/html/main.html

Conference

ConferenceNACE 2nd European Event for the Corrosion Prevention
CountryItaly
CityGenoa
Period27/05/1829/05/18
Internet address

Fingerprint

life cycle
inspection
loss
statistics
distribution
rate
monitoring data
services

Keywords

  • RBI
  • power plant
  • life assessment

Cite this

Tuurna, S., Auerkari, P., Pohja, R., Jovanovic, A., & Husta, S. (2018). Practical aspects of applying risk-based approaches in asset management for heat exhangers. NACE 2nd European Event for the Corrosion Prevention , Genoa, Italy.
Tuurna, Satu ; Auerkari, Pertti ; Pohja, Rami ; Jovanovic, Aleksandar ; Husta, Stefan. / Practical aspects of applying risk-based approaches in asset management for heat exhangers. NACE 2nd European Event for the Corrosion Prevention , Genoa, Italy.
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Tuurna, S, Auerkari, P, Pohja, R, Jovanovic, A & Husta, S 2018, 'Practical aspects of applying risk-based approaches in asset management for heat exhangers' NACE 2nd European Event for the Corrosion Prevention , Genoa, Italy, 27/05/18 - 29/05/18, .

Practical aspects of applying risk-based approaches in asset management for heat exhangers. / Tuurna, Satu (Corresponding author); Auerkari, Pertti; Pohja, Rami; Jovanovic, Aleksandar; Husta, Stefan.

2018. NACE 2nd European Event for the Corrosion Prevention , Genoa, Italy.

Research output: Contribution to conferenceOther conference contributionProfessional

TY - CONF

T1 - Practical aspects of applying risk-based approaches in asset management for heat exhangers

AU - Tuurna, Satu

AU - Auerkari, Pertti

AU - Pohja, Rami

AU - Jovanovic, Aleksandar

AU - Husta, Stefan

PY - 2018/5/29

Y1 - 2018/5/29

N2 - Risk-based inspection and maintenance can help to achieve safe and economically viable plant operation by justifying and prioritizing actions, choices and schedules according to the associated risk. To manage the risk, the implemented inspections and maintenance actions aim to limit the probability of failure and its uncertainty. Failure statistics of similar components operating in similar environments may provide fair estimates of the probability of failure, but biased or lacking comparable statistics may require adjustment through additional measurements or expert information. In parallel, inspection and monitoring data can more directly help in assessing the evolution of probability of failure. Presented example is a tubular heat exchanger, with inspection and failure criteria considered for a full life cycle that included multiple inspections by the same inspecting party and equipment. Uneven distribution of in-service wall loss without changes in mechanisms or local loss rates nevertheless required a change of inspection strategy during the life cycle.

AB - Risk-based inspection and maintenance can help to achieve safe and economically viable plant operation by justifying and prioritizing actions, choices and schedules according to the associated risk. To manage the risk, the implemented inspections and maintenance actions aim to limit the probability of failure and its uncertainty. Failure statistics of similar components operating in similar environments may provide fair estimates of the probability of failure, but biased or lacking comparable statistics may require adjustment through additional measurements or expert information. In parallel, inspection and monitoring data can more directly help in assessing the evolution of probability of failure. Presented example is a tubular heat exchanger, with inspection and failure criteria considered for a full life cycle that included multiple inspections by the same inspecting party and equipment. Uneven distribution of in-service wall loss without changes in mechanisms or local loss rates nevertheless required a change of inspection strategy during the life cycle.

KW - RBI

KW - power plant

KW - life assessment

M3 - Other conference contribution

ER -

Tuurna S, Auerkari P, Pohja R, Jovanovic A, Husta S. Practical aspects of applying risk-based approaches in asset management for heat exhangers. 2018. NACE 2nd European Event for the Corrosion Prevention , Genoa, Italy.