Page 26: of Marine News Magazine (March 2017)

Pushboats, Tugs & Assist Vessels

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HYBRID PROPULSION calculated using Holtrop and Mennen’s regression analysis. With the output values for the baseline vessel calibrated

Inputs to the tool include the following variables: against actual cost number, EBDG proceeded to look at the propulsion alternatives. We assumed three 600 kW generator

Physical Dimensions Route Model sets would take the place of two propulsion engines and two smaller generator sets. The SWBS parametric values for pro-

Weight ParametersConstruction Cost Parameters pulsion (SWBS 200) and electrical power and distribution (SWBS 300) were adjusted accordingly and all other SWBS

Crew Number & Positions Areas & Volumes parameters were kept the same. A 10% ef

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