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Reliability assessment of main engine subsystems considering turbocharger failure as a case study

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Anantharaman, MP ORCID: 0000-0001-9574-7753, Khan, F ORCID: 0000-0002-5638-4299, Garaniya, V ORCID: 0000-0002-0090-147X and Lewarn, B 2018 , 'Reliability assessment of main engine subsystems considering turbocharger failure as a case study' , TransNav, vol. 12, no. 2 , pp. 271-276 , doi: 10.12716/1001.12.02.06.

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Abstract

Safe operation of a merchant vessel is dependent on the reliability of the vessel’s main propulsionengine. Reliability of the main propulsion engine is interdependent on the reliability of several subsystemsincluding lubricating oil system, fuel oil system, cooling water system and scavenge air system. Turbochargersform part of the scavenge sub system and play a vital role in the operation of the main engine. Failure ofturbochargers can lead to disastrous consequences and immobilisation of the main engine. Hence dueconsideration need to be given to the reliability assessment of the scavenge system    while assessing thereliability of the main engine. This paper presents integration of Markov model (for constant failurecomponents) and Weibull failure model (for wearing out components) to estimate the reliability of the mainpropulsion engine. This integrated model will provide more realistic and practical analysis. It will serve as auseful tool to estimate the reliability of the vessel’s main propulsion engine and make efficient and effectivemaintenance decisions. A case study of turbocharger failure and its impact on the main engine is alsodiscussed.

Item Type: Article
Authors/Creators:Anantharaman, MP and Khan, F and Garaniya, V and Lewarn, B
Keywords: reliability assessment, merchant vessel, main engine, turbocharger, failure
Journal or Publication Title: TransNav
Publisher: Akademia Morska w Gdyni
ISSN: 2083-6473
DOI / ID Number: 10.12716/1001.12.02.06
Copyright Information:

Copyright 2018 The Authors. Licensed under Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0) https://creativecommons.org/licenses/by-nc/3.0/

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