Powering Process

Anthony F. Molland; Stephen R. Turnock; Dominic A. Hudson

doi:10.1017/CBO9780511974113.016

13 - Powering Process

Published online by Cambridge University Press: 07 September 2011

Anthony F. Molland ,

Stephen R. Turnock and

Dominic A. Hudson

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Anthony F. Molland: Affiliation:
University of Southampton
Stephen R. Turnock: Affiliation:
University of Southampton
Dominic A. Hudson: Affiliation:
University of Southampton

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Summary

Selection of Marine Propulsion Machinery

The selection of propulsion machinery and plant layout will depend on design features such as space, weight and noise levels, together with overall requirements including areas of operation, running costs and maintenance. All of these factors will depend on the ship type, its function and operational patterns.

Propeller Geometry, Coefficients, Characteristics

Compactness and weight: Extra deadweight and space. Height may be important in ships such as ferries and offshore supply vessels which require long clear decks.
Initial cost.
Fuel consumption: Influence on running costs and bunker capacity (deadweight and space).
Grade of fuel (lower grade/higher viscosity, cheaper).
Level of emission of NOx, SOx and CO2.
Noise and vibration levels: Becoming increasingly important.
Maintenance requirements/costs, costs of spares.
Rotational speed: Lower propeller speed plus larger diameter generally leads to increased efficiency.

Information

Type: Chapter
Information: Ship Resistance and Propulsion
Practical Estimation of Propulsive Power
, pp. 296 - 312

DOI: https://doi.org/10.1017/CBO9780511974113.016 [Opens in a new window]

Publisher: Cambridge University Press

First published in: 2011

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