Safety evaluation on LNG bunkering: to enhance practical establishment of safety zone

摘要: Abstract This paper is to evaluate the LNG bunkering safety for a 50,000 dead weight tonnage bulk carrier renowned as world first fueled carrier. To establish proper level of zone against potential risk gas release from systems encompassing truck ship, it introduces an enhanced quantitative assessment process with two key ideas: firstly, integration population-independent analysis population-dependent analysis, and secondly, combination between probabilistic CFD simulation dispersion. Research results reveal that appropriate levels safe can be set at 28.8 m in 1E-4/year criterion concerns individual fatality given distance source 1 10,000 years, whereas 46.6 m (in 1E-5/year criterion) 213.3 m 1E-6/year when area within 5% higher concentration air regarded critical zone. On other hand, case considered 2.5% air, will much expand 34.9 m criterion), 80.4 m 541.8 m criterion). These dissimilarities suggest ports pay attention selecting criteria which would considerably change range zones. The study also demonstrates effectiveness proposed approach remedy shortcomings/shortfalls existing technical regulatory guidance on establishing It is, therefore, believed this contribute determining zones providing practical insight into port authorities flag states.