A new approach in engine-propeller matching

A. Coraddu, S. Gaggero, D. Villa, M. Figari

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

8 Citations (Scopus)

Abstract

Traditional engine-propeller matching techniques are mainly based on nondimensional parameters analysis: Thrust/advance coefficient or torque/advance coefficient ratio are the most used variables to assess the ship propulsion point or to match, at each selected ship speed, the selected propeller with the ship engine. The advantages of this robust and well established procedure (standard propeller open water measures only at some pitch ratios around the design configuration, availability of large databases and extrapolation laws) however, turn into the drawbacks for the inclusion of different constraints and objectives, further than the minimum fuel consumption, in the matching algorithm. On the other hand modern numerical tools and available hardware resources let to partially substitute, in the design stage, experimental campaigns and to collect large amount of information on propeller performances, including cavitation. In this sense numerical computations make out of date approaches just developed to overcome the deficiency of experimental measures. On the basis of these numerical data new algorithms for the engine-propeller matching can be developed capable of investigate different objectives and the influence of different constraints on the traditional optimum points.

Original languageEnglish
Title of host publicationSustainable Maritime Transportation and Exploitation of Sea Resources
Subtitle of host publication proceedings of the 14th international congress of the international maritime association of the Mediterranean, IMAM 2011
Place of PublicationHoboken
Pages631-637
Number of pages7
Volume2
Publication statusPublished - 1 Dec 2012
Externally publishedYes
Event14th International Congress of the International Maritime Association of the Mediterranean, IMAM 2011 - Genova, Italy
Duration: 13 Sep 201116 Sep 2011

Conference

Conference14th International Congress of the International Maritime Association of the Mediterranean, IMAM 2011
CountryItaly
CityGenova
Period13/09/1116/09/11

Keywords

  • engine propeller matching
  • nondimensional parameters
  • ship propulsion point

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  • Cite this

    Coraddu, A., Gaggero, S., Villa, D., & Figari, M. (2012). A new approach in engine-propeller matching. In Sustainable Maritime Transportation and Exploitation of Sea Resources: proceedings of the 14th international congress of the international maritime association of the Mediterranean, IMAM 2011 (Vol. 2, pp. 631-637).