Application Of Reliability Centered Maintenance 3 For Determining Maintenance Strategy Of Inert Gas System On Tanker Vessel

Yughassani, Rifkha Uzma Dhea Yughassani (2025) Application Of Reliability Centered Maintenance 3 For Determining Maintenance Strategy Of Inert Gas System On Tanker Vessel. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

This study investigates the Inert Gas System on tanker vessels to identify common failure modes, evaluate the criticality of individual components, and determine the most suitable maintenance strategy through the application of the Reliability Centered Maintenance 3 methodology. The analysis identified recurrent failures such as blower shutdowns, erroneous oxygen readings, valve malfunctions, inadequate sulfur dioxide absorption, signal drift, unstable pressure, poor gas quality, and increased maintenance demands. These failures were predominantly attributed to degradation (12 cases), corrosion (11), wear (8), clogging (7), fouling (6), fatigue (5), and vibration (4), along with other less frequent causes such as short circuits, overpressure, and thermal expansion. An inherent risk assessment revealed that eight components, including the inert gas generator, uptake valve, venturi valve, scrubber, blower, main control valve, deck seal, and pressure controller, each exhibited at least one failure mode classified as High Intolerable Risk, indicating serious implications for system safety and reliability. Additionally, components such as the oxygen analyzer, filter regulator, and pressure transmitter were assessed as having Significant Intolerable Risk. These findings underscore the high criticality of the system and the necessity of regular inspections and stringent operational control. The predominant maintenance strategy, accounting for 73 recommendations, is the implementation of Scheduled On-Condition Tasks, underscoring the relevance of Condition-Based Maintenance. This is further supported by supplementary strategies for protective devices (8 tasks), combination tasks (2), failure-finding tasks (2), and restoration tasks (1). The dominance of on-condition strategies affirms the essential role of condition monitoring in ensuring the reliability and availability of the Inert Gas System. Despite data limitations and system complexity, the study successfully demonstrates the application of Reliability Centered Maintenance 3 and presents a comprehensive, risk-informed maintenance framework for inert gas systems on tanker vessels.

Item Type:	Thesis (Other)
Subjects:	T Technology > T Technology (General) > T174.5 Technology--Risk assessment. T Technology > TA Engineering (General). Civil engineering (General) > TA169 Reliability (Engineering) T Technology > TA Engineering (General). Civil engineering (General) > TA169.5 Failure analysis V Naval Science > VK > VK1258 Ships--Fires and fire prevention V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM293 Shipping--Indonesia--Safety measures
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	Rifkha Uzma Dhea Yughassani
Date Deposited:	04 Aug 2025 01:25
Last Modified:	04 Aug 2025 01:25
URI:	http://repository.its.ac.id/id/eprint/126496

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