Vessel main propulsion engine performance evaluation

• Autorzy: Borkowski T. , Kowalak P. , Myśków J.
• Języki publikacji: EN

Abstrakty

EN

In general, the performance of a ship in service is different from that obtained on shipyard sea trial. Apart from any differences due to loading conditions, and for which due correction should be made, these differences arise principally from the weather, fouling and surface deterioration of the hull and propeller. The influence of the weather, both in terms of wind and sea conditions, is an extremely important factor in ship performance analysis. Consequently, the weather effects needs to be taken into account if a realistic evaluation is to be made. The primary role of the ship service analysis is a standard of performance data, under varying operational and environmental conditions. The resulting information, derived from this data, becomes the basis for operational and chartering decision. In addition, the part for the data records is to enable the analysis of trends of either the hull or machinery, from which the identification of potential failure scenarios and maintenance decisions can be derived. The traditional method of data collection is the deck and engine room log records, and this is the most commonly used method today. In terms of data processing and capabilities, this method of data collection is far from ultimate, since involves significant data distortion risk. Instrumentation errors are always a potential source of concern in performance analysis methods. Such errors are generally in the form of instrument drift or gross distortion of the reading. However, these can generally be detected by the use of trend analysis techniques. The procedure for the evaluation of the ship's service performance, that relies on proven methods of main propulsion engine service data analysis used and applied for container vessel - small feeder. The vessel is equipped with indirect main propulsion, driven by means of modern medium speed engine. The different approach demonstrated to achieve the reliable and accurate main engine performance. The difference in developed engine power has been found, that corresponds well to registered sea trial results and engine retrofitting reports done, in order to limit the effective power.

Słowa kluczowe

EN

ship main propulsion; marine diesel engine; Energy Efficiency Design Index

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2012
• Tom: Vol. 19, No. 2
• Strony: 53--60
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Borkowski T.

autor

Kowalak P.

autor

Myśków J.

• Maritime University of Szczecin Engineering Department Waly Chrobrego Street 1-2, 70-500 Szczecin, Poland tel.: [phone], fax: [phone],

Bibliografia

• [1] Min, K., Kang, S., Study on the form factor and full-scale ship resistance prediction method, Journal of Marine Science Technology, 15:108–118, DOI 10.1007/s00773-009-0077-y, 2010.
• [2] Andresen, P., Borrod, A. Blanchot, H., Evaluation of the Service Performance of Ships, Marine Technology and SNAME News, 42,4 ProQuest Central pg. 177, 2005.
• [3] Hountalas, D. T., Prediction of marine diesel engine performance under fault conditions, Applied Thermal Engineering 20, 1753-1783, www.elsevier.com/locate/apthermeng, 2000.
• [4] Insel, M., Uncertainty in the analysis of speed and powering trials, Ocean Engineering 35, 1183–1193, Elsvier, 2008.
• [5] International Towing Tank Conference, Recommended Procedures and Guidelines, Testing and Extrapolation Methods Loads and Responses, Stability Model Tests on Intact Stability, UK 2005.
• [6] ISO 15016:2002, Ships and marine technology - Guidelines for the assessment of speed and power performance by analysis of speed trial data.