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Environmental Life-Cycle Assessment of Eco-Friendly Alternative Ship Fuels (MGO, LNG, and Hydrogen) for 170 GT Nearshore Ferry

Abstract

With increasing concerns about environmental pollution, the shipping industry has been considering various fuels as alternative power sources. This paper presents a study of the holistic environmental impacts of eco-friendly alternative ship fuels of marine gas oil (MGO), liquefied natural gas (LNG), and hydrogen across each of their life cycles, from their production to the operation of the ship. The environmental impacts of the fuels were estimated by life-cycle assessment (LCA) analysis in the categories of well-to-tank, tank-to-wake, and well-to-wake phases. The LCA analysis was targeted for a 170 gross tonnage (GT) nearshore ferry operating in the ROK, which was conceptually designed in the study to be equipped with the hydrogen fuel cell propulsion system. The environmental impact performance was presented with comparisons for the terms of global warming potential (GWP), acidification potential (AP), photochemical ozone creation potential (POCP), eutrophication potential (EP), and particulate matter (PM). The results showed that the hydrogen showed the highest GWP level during its life cycle due to the large amount of emissions in the hydrogen generation process through the steam methane reforming (SMR) method. The paper concludes with suggestions of an alternative fuel for the nearshore ferry and its production method based on the results of the study.

Funding source: This study was supported by BK21 FOUR Graduate Program for Green-Smart Naval Architecture and Ocean Engineering of Pusan National University and Basic Science Research Program (2021R1I1A1A01059563) through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, the R&D Platform Establishment of Eco–Friendly Hydrogen Propulsion Ship Program (No. 20006636), and the Global Advanced Engineer Education Program for Future Ocean Structures (P0012646) funded by the Ministry of Trade, Industry, and Energy (MOTIE, Korea).
Related subjects: Applications & Pathways
Countries: Korea, Republic of
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/content/journal4115
2022-05-30
2023-02-07
http://instance.metastore.ingenta.com/content/journal4115
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