Calculation of the mean long-term service speed of transport ship. Part III. Influence of shipping route and ship parameters on its service speed

• Autorzy: Szelangiewicz T. , Żelazny K.
• Języki publikacji: EN

Abstrakty

EN

Service speed obtainable by a ship in real weather conditions when sailing on a given shipping route, is one of the major parameters which have great impact on ship operation costs. The so far used, very approximate method of service speed prediction based on “service margin”, is very little exact. In this paper a new method based on additional ship resistance dependent on mean statistical parameters of wave and wind occurring on a given shipping route, is presented. The mean long-term service speed is calculated on the basis of the calculated additional resistance and the screw propeller and propulsion engine parameters. Also, a new definition of service margin and a way of its calculation is presented apart from the results of the mean service speed calculation depending on ship’s type and size and shipping route.

Słowa kluczowe

EN

ship service speed; wind; waving; shipping route; service margin; long-term prediction

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2007
• Tom: nr 2
• Strony: 27--32
• Opis fizyczny: Bibliogr. 4 poz., rys., tab.

Twórcy

autor

Szelangiewicz T.

autor

Żelazny K.

• Szczecin University of Technology,

Bibliografia

• 1. Atlas Weltmeer : VEB Herman Haack, Geographisch- -Kartographische Anstalt Gotha, 1989
• 2. Jóźwiak J., Podgórski J. : Essentials of statistics (in Polish). Polish Economic Publishers (Polskie Wydawnictwo Ekonomiczne). Warszawa, 2001
• 3. Szelangiewicz T., Żelazny K. : Calculation of ship resistance and speed in the frame of long-term prediction (in Polish). International Scientific Technical Conference EXPLO-SHIP 2006. Szczecin-Kopenhaga, May 2006
• 4. Żelazny K. : Numerical prediction of mean long-term service speed of transport ship (in Polish) Doctorate thesis, Maritime Technology Faculty, Szczecin University of Technology, 2005