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http://dx.doi.org/10.5394/KINPR.2020.44.6.453

Uncertainty Analysis of Improved Speed Performance of a Ship with an Air-Lubrication System in a Sea Trial  

Seo, Dae-Won (Department of Naval Architecture and Ocean Engineering, Kunsan National University)
Oh, Jungkeun (Department of Naval Architecture and Ocean Engineering, Kunsan National University)
Publication Information
Journal of Navigation and Port Research / v.44, no.6, 2020 , pp. 453-459 More about this Journal
Abstract
A sea trial of the speed performance test is the one of the most important means of verifying a ship's performance, and the International Organization for Standardization established a standard for this test in 2015. Environmental disturbances such as wind and waves are always present under real sea conditions, however, so it is impossible to accurately estimate delivered horsepower under ideal conditions. These disruptive influences also make it difficult to evaluate the positive effect of recently developed energy-saving devices. In this study, uncertainty analysis of improved speed performance was carried out using Monte Carlo simulation to confirm the energy-saving efficiency of a ship equipped with an air-lubrication system. The findings showed the average power saving to be 3.2%, with the expanded uncertainty of ± 2.7% at a 95% confidence level (k=2).
Keywords
uncertainty analysis; air-lubrication system; Monte Carlo simulation; sea trial; speed performance;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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