Abstract No.F180105-056
Author name(s): John C. Daidola1,2, Dillon Esposito-Kelley1
Company: 1. Webb Institute, USA; 2. AENY, USA
The effects of hull roughness on increasing propulsion power requirements to maintain speed or loss of speed at constant power are investigated. Vessel lifetime roughness profiles are postulated based on construction, coatings and maintenance. General mathematical formulations are provided to determine lifetime cumulative increase in power or loss of speed. These are then utilized to determine increased lifetime fuel consumption and loss of voyages. Examples are provided for a 30.5MT displacement 14.7 knot RO-RO and a 158MT displacement 14 knot OBO.
KEY WORDS: hull roughness; fuel consumption; voyages; RO-RO; OBO
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