Naslov
A methodology for estimating the ship fuel consumption at sea waves

Autori
Prpić-Oršić, Jasna ; Faltinsen, Odd Magnus ; Mrakovčić, Tomislav

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Zbornik Simpozija SORTA 2014 / - Rijeka, 2014, 237-245

ISBN
978-953-6326-90-7

Skup
Simpozij Sorta 2014

Mjesto i datum
Baška, Hrvatska, 02.10.2014. - 04.10.2014

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Domaća recenzija

Ključne riječi
seakeeping; added resistance; CO2 emissions; fuel consumption

Sažetak
In this paper a methodology for estimating the attainable ship speed and related fuel consumption and carbon dioxide (CO2) emissions in moderate and severe sea is proposed. The in-and-out-of-water-effect and ventilation of a propeller in severe seas is accounted for by a quasi-steady averaging of experimental data for different propeller submergences. The added resistance results for regular waves are used in simulating results in irregular waves. The speed loss is calculated by taking into account the engine and propeller performance in actual seas as well as the mass inertia of the ship. The numerical model used for main propulsion engine modeling is based on a zero-dimensional model of an internal combustion engine. The attainable ship speed is obtained as time series for head and following sea. Correlation of speed loss, fuel consumption and CO2 emission with sea states allows predictions of propulsive performance in actual weather conditions.

Izvorni jezik
Engleski

Znanstvena područja
Brodogradnja

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