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Tomasz Neumann
 

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TransNav, Faculty of Navigation
Gdynia Maritime University
3, John Paul II Avenue
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A Study on the Propulsion Performance in the Actual Sea by means of Full-scale Experiments
1 Tokyo University of Marine Science and Technology, Tokyo, Japan
2 National Maritime Research Institute, Mitaka, Japan
3 National Institute for Sea Training, Yokohama, Japan
ABSTRACT: The IMO has adopted Energy Efficiency Design Index (EEDI), Ship Energy Efficiency Management Plan (SEEMP) and Energy Efficiency Operational Indicator (EEOI) in order to reduce GHG emissions from international shipping. And, the shipping industry is required to develop and improve the energy saving ship operation technologies to meet the above IMO guideline. The weather routing is one of the energy saving navigation technologies and widely adopted by oceangoing merchant ships. The effectiveness of the weather routing mainly depends on the accuracy of weather forecast data and the ship's propulsion performance prediction. The propulsion performance in the actual sea is usually predicted using the Self Propulsion Factors obtained by model tests. It is necessary to understand the propulsion performance characteristics in the actual sea conditions for the improvement of propulsion performance prediction. From the above points of view, the authors performed full-scale experiments using a training ship in order to investigate the propulsion performance characteristics in the actual sea. This paper describes the analysis results on the characteristics of Power Curves and Self Propulsion Factors under various weather and sea conditions.
REFERENCES
Yokoi, T. et al. 2010. A mechanism on parallel processing to numerical weather prediction for weather routing – Accuracy evaluation and performance benchmark of the sea surface wind prediction-, Proceeding of Asia Navigation Conference 2010; 33-40
Sasaki, N. et al. 2009. Development of ship performance index (10 mode at sea), Report of National Maritime Research Institute, Vol.9 No.4; 1-46
Tsujimoto, M. et al. 2000. Evaluation of ship propulsive performance by analyzing full-scale data and time history of ship motion on actual seas, Proceeding of 4th Osaka Colloquium on Seakeeping Performance of Ship 2000; 1-9
SEC ship performance monitor. Shoyo Rngineering Co.,Ltd. HP, http://www.shoyo-e.co.jp/english/product_a_01_e. html
Sasaki, N. et al. 2010. Development of basic design tools for high performance ships, Report of National Maritime Research Institute, Vol.10 No.3; 1-21
Citation note:
Kayano J., Yabuki H., Sasaki N., Hiwatashi R.: A Study on the Propulsion Performance in the Actual Sea by means of Full-scale Experiments. TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, Vol. 7, No. 4, doi:10.12716/1001.07.04.07, pp. 521-526, 2013

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