MATHEMATICAL RELATIONSHIP BETWEEN PROPULSION AND (CARGO) TRANSPORT
Reliable forecasts of the propulsion power required for a given ship-speed and cargo deadweight, i.e. for a given transportation capability, is important in planning new ships. As the basis for a mathematical study of this relationship, carried out in association with the M.A.N. company, the Author has obtained ship data from various sources and, after reducing the field of scatter, has made use of data on a total of 244 German and other bulk-carriers, container-ships, general-cargo ships, tankers, and refrigerated-ships. The data collected are those for deadweight, length, speed, and engine-power, and the aim of the study is to present statistically-based relationships between those variables, together with a simple method for determining the shp corresponding to a given transportation capability (or vice versa). The study procedures and data- processing (by computer) are described and the results, which are presented and discussed, include: a graph of specific transport capability (i.e., deadweight times speed, divided by power) in relation to Froude number; a chart showing power as a function of transport capability with ship-speed as parameter; and a nomograph giving the fuel consumption in relation to time and distance with ship-speed and specific consumption as parameters.
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Seehafen-Verlag Erik BlumenfeldCelsiusweg 15, Postfach 1347
2000 Hamburg 50, Germany
- Schmick, W
- Publication Date: 1976-9
- Pagination: 4 p.
- Schiff und Hafen
- Volume: 28
- ISSN: 0036-603X
- TRT Terms: Economic efficiency; Electric power plants; Energy conservation; Energy consumption; Engine performance; Fuel consumption; Vehicle power plants
- Old TRIS Terms: Power plant efficiency; Power prediction; Propulsion plant performance
- Subject Areas: Design; Economics; Energy; Environment; Marine Transportation; Vehicles and Equipment;
- Accession Number: 00149554
- Record Type: Publication
- Source Agency: British Ship Research Association
- Report/Paper Numbers: Spec. Iss.
- Files: TRIS
- Created Date: Apr 13 1977 12:00AM