PROPELLER MODIFICATIONS FOR CHANGING CONDITIONS DURING THE LIFE OF A SHIP

MODIFICATION DE HELICES, PARA UNA UTILIZACION SATISFACTORIA A LO LARGO DE LA VIDA DEL BUQUE

During the life of the ship, the hull condition deteriorates gradually, giving rise to a continuous increase of resistance. At the same time, the power developed by the engine, under given conditions of rpm and exhaust temperatures, may decrease with age. These two circumstances bring about a gradual modification of the adequacy of a fixed-bladed propeller to the hull-engine system, thus producing sometimes engine overloading that is highly damaging to the engine. In this paper, the service conditions of single-screw vessels are analyzed, studying the different methods that may be used in order to modify the ship propeller, so that it may become suitable to the changed conditions of the hull-engine system.

• Corporate Authors:

  Asociacion de Ingenieros Navales

  Apdo Correos 457
  Madrid,   Spain 
• Authors:
  • O'Dogherty, P
  • Gomez, A G
• Publication Date: 1976-10

Language

• Spanish

Media Info

• Features: References;
• Pagination: p. 628-640
• Serial:
  • INGENIERIA NAVAL
  • Volume: 44
  • Issue Number: 496

Subject/Index Terms

• TRT Terms: Engine efficiency; Fluid resistance; Hulls; Propellers; Propulsion; Ships; Speed control; Traffic speed
• Uncontrolled Terms: Hull resistance; Speed reduction
• Old TRIS Terms: Propeller modification; Propulsive efficiency
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00156843
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Jul 2 1977 12:00AM