Detail publikace

Application of Pinch Analysis to Opportunistic Maintenance Management

Chin, H.H., Varbanov, P.S., Klemeš, J.J., Lam H.L.

Originální název

Application of Pinch Analysis to Opportunistic Maintenance Management

Typ

článek v časopise ve Scopus, Jsc

Jazyk

angličtina

Originální abstrakt

The opportunistic maintenance (OM) approach allows exploiting the stoppage for performing additional maintenance actions alongside those planned, to save cost and time. This study aims to propose a graphical approach to identify the optimal maintenance grouping strategies in an operating process. The failure of a specific component is predicted by using the statistically-derived probability distribution function that reflects its time-variant failure behaviours. The periodic maintenance schedule is first derived, and the system failure likelihood is predicted within each time interval. The failure of one of the component creates an opportunity to reschedule maintenance activities, which can be carried out while replacing the failed components. The expected cost to mitigate the failures (‘Sinks’) can be reduced by the expected maintenance reschedule cost savings (‘Sources’) based on the derived schedule previously. In this work, Pinch Analysis is used as a targeting tool to determine the maximum cost savings and expected cost required to handle unexpected plant shutdown. The methodology is presented and demonstrated with a case study, featuring the component replacement for a hydrogen compressor in an oil refinery. The results show that about 35 % of the expected failure cost would need to be invested for opportunistic maintenance at the earlier time, minimising the risk of failure, while the remaining 65 % can be saved. The extra savings at the end of the period also suggest the maintenance grouping can be further reduced. The limitations and potential future development of the framework are discussed as well.

Klíčová slova

opportunistic maintenance; maintenance; Pinch Analysis

Autoři

Chin, H.H., Varbanov, P.S., Klemeš, J.J., Lam H.L.

Vydáno

30. 10. 2019

Nakladatel

Italian Association of Chemical Engineering - AIDIC

ISSN

2283-9216

Periodikum

Chemical Engineering Transactions

Číslo

76

Stát

Italská republika

Strany od

535

Strany do

540

Strany počet

6

URL

https://www.aidic.it/cet/19/76/090.pdf

BibTex

@article{BUT162686,
  author="Hon Huin {Chin} and Petar Sabev {Varbanov} and Jiří {Klemeš}",
  title="Application of Pinch Analysis to Opportunistic Maintenance Management",
  journal="Chemical Engineering Transactions",
  year="2019",
  number="76",
  pages="535--540",
  doi="10.3303/CET1976090",
  issn="2283-9216",
  url="https://www.aidic.it/cet/19/76/090.pdf"
}