Analytic Hierarchy Process Analysis for Industrial Application of LNG Bunkering: A Comparison of Japan and South Korea

Young-Gyu Lee, Jong-Kwan Kim and Chang-Hee Lee
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Young-Gyu Lee: Daewoo Shipbuilding & Marine Engineering Co., Ltd.: DSME, 3370, Geoje-daero, Geoje-si 53302, Gyeongsangnam-do, Korea
Jong-Kwan Kim: Korea Institute of Maritime and Fisheries Technology, 93 Sinseon-ro 367, Haeyang-ro, Yeongdo-gu, Busan 49111, Korea
Chang-Hee Lee: College of Maritime Sciences, Korea Maritime & Ocean University, Taejong-ro, Yeongdo-gu, Busan 49112, Korea

Energies, 2021, vol. 14, issue 10, 1-17

Abstract: From January 2020, the International Maritime Organization has regulated ship emissions to reduce sulfur content. As an alternative to this, LNG bunkering was proposed, and infrastructure and ships were deployed. Therefore, we used analytic hierarchy process AHP techniques to determine optimal methods of LNG bunkering for shipyard safety. First, we conducted a literature survey on the concept and type of LNG bunkering, global LNG bunkering trends, and features of Japan and South Korea cases and compared them. Thereafter, an expert survey was conducted, and survey data was analyzed using AHP techniques. Finally, we derived optimal methods applicable to shipyard industry. The analytical results revealed that the derived priority of the optimal LNG bunkering method of shipyard was in the order of the STS method, TTS method, and the PTS method. The result of this study can serve as a theoretical basis to make LNG bunkering safer and more economical in shipyards to prepare for the expansion of demand of LNG-fueled ships and LNG. However, this study inevitably has limitations of ranking reversals paradox as it was conducted by experts, assuming no weights to STS, TTS, or PTS.

Keywords: LNG; international maritime organization; LNG bunkering; shipyard; analytic hierarchy process (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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