OPERATION OF CONTROLLABLE-PITCH PROPELLER PLANTS WITH SYNCHRONOUS SHAFT GENERATORS AT REDUCED SPEED

A procedure is described for reducing the fuel consumption of ships with variable pitch propellers and shaft generators feeding directly into the mains. This measure for saving energy does not require any further investment and can be performed routinely by the engine-room personnel provided the ship is operating under conditions of partial load. The suggested measure was tried out on an 18,000-dwt multi-purpose containership. The main engine speed was reduced by 5% and the pitch was increased by 4%. At constant speed this resulted in a 5% fuel saving. The auxiliary engines and all electrical drives functioned normally at the reduced mains frequency. The test results justify further expectations of fuel savings at speed reductions down to 90% of the rated main engine speed.

  • Supplemental Notes:
    • Jahrbuch der Schiffbautechnischen Gesellschaft, 76 <1982>, p.353 (15 pp., 3 ref., 1 tab., 3 graphs, 5 diag., 1 phot.)
  • Authors:
    • Knaak, H J
  • Publication Date: 1982

Language

  • German

Subject/Index Terms

  • Subject Areas: Marine Transportation;

Filing Info

  • Accession Number: 00685808
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Aug 14 1995 12:00AM