Comparison of diesel-electric with hybrid-electric propulsion system safety using system-theoretic process analysis

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Abstract

Cruise ship industry is rapidly developing, with both the vessels size and number constantly growing up, which renders ensuring passengers, crew and ship safety a paramount necessity. Collision, grounding and fire are among the most frequent accidents on cruise ships with high consequences. In this study, a hazard analysis of diesel-electric and hybrid-electric propulsion system is undertaken using System-Theoretic Process Analysis (STPA). The results demonstrate significant increase in potential hazardous scenarios due to failures in automation and control systems, leading to fire and a higher number of scenarios leading to propulsion and power loss in hybrid-electric propulsion systems than on a conventional cruise-ship propulsion system. Results also demonstrate that STPA enhancement is required to compare the risk of two propulsion systems.

Original languageEnglish
Title of host publicationRINA, Royal Institution of Naval Architects - Power and Propulsion Alternatives for Ships 2019, Papers
Place of PublicationLondon
PublisherRoyal Institution of Naval Architects
ISBN (Electronic)9781909024878
Publication statusPublished - 23 Jan 2019
EventRINA, Royal Institution of Naval Architects - International Conference on Power and Propulsion Alternatives for Ships 2019 - London, United Kingdom
Duration: 23 Jan 2019 → …

Conference

ConferenceRINA, Royal Institution of Naval Architects - International Conference on Power and Propulsion Alternatives for Ships 2019
CountryUnited Kingdom
CityLondon
Period23/01/19 → …

Keywords

  • cruise ships
  • maritime safety
  • hybrid-electric propulsion
  • vessel propulsion

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    Cite this

    Bolbot, V., Theotokatos, G., Boulougouris, E., & Vassalos, D. (2019). Comparison of diesel-electric with hybrid-electric propulsion system safety using system-theoretic process analysis. In RINA, Royal Institution of Naval Architects - Power and Propulsion Alternatives for Ships 2019, Papers Royal Institution of Naval Architects.