STATISTICAL INVESTIGATION ON THE DETERMINATION OF THE REQUIRED GENERATOR-OUTPUT OF MERCHANT SHIPS

Because generating equipment for a new ship has to be ordered well in advance, the requirements for this equipment have to be decided upon at an early stage in design, before the number and size of the various motors to be installed in the ship can be definitely stated. The Author describes the development and capabilities of a mathematical model intended to overcome this difficulty by enabling the generating capacity required for a new ship to be forecast before reliable data are available for an electrical load analysis. The proposed model has been developed by statistical methods, and is based on data from several hundred cargo ships (all over 2,000 dwt) built in European and Japanese yards between 1963 and 1975. The ships are divided into seven groups: (1) general-cargo motor-ships; (2) bulk carriers (all motor-ships); (3) tankers and OBO carriers, with turbine propulsion; (4) tankers and OBO cariers, with Diesel propulsion; (5) refrigerated ships (all motor-ships); (6) container-ships with turbine (steam or gas) propulsion; and (7) container-ships with Diesel propulsion. For each group, a regression equation is presented which enables the total generating-capacity requirement to be predicted, with a good standard of accuracy, from a projected ship's deadweight and propulsion power (the equations is also represented in a three-dimensional diagram); a calculated correlation-coefficient is also given for each group. A detailed assessment is included of results obtained with the method. Order from: BSRA as No. 48,212.

  • Corporate Authors:

    Schroedter (C) and Company

    Stubbenhuk 10
    Hamburg 11,   Germany 
  • Authors:
    • Schreiber, H
  • Publication Date: 1977-12

Language

  • German

Media Info

  • Features: References;
  • Pagination: 7 p.
  • Serial:
    • HANSA
    • Volume: 114
    • Issue Number: 23
    • Publisher: Deutsche Bahn AG

Subject/Index Terms

Filing Info

  • Accession Number: 00177266
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Files: TRIS
  • Created Date: Jul 19 1978 12:00AM