The influence of route choice and operating conditions on fuel consumption and CO2 emission of ships |
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| Authors: | Jasna Prpić-Oršić Roberto Vettor Odd Magnus Faltinsen Carlos Guedes Soares |
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| Affiliation: | 1.Department of Naval Architecture and Ocean Engineering,Faculty of Engineering, University of Rijeka,Rijeka,Croatia;2.Centre for Marine Technology and Ocean Engineering (CENTEC), Instituto Superior Técnico,Universidade de Lisboa,Lisboa,Portugal;3.Department of Marine Technology, NTNU,Centre for Autonomous Marine Operations and Systems (AMOS),Trondheim,Norway |
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| Abstract: | The influence of various parameters, such as ship initial speed (full ahead and lower engine loads), loading condition, heading angle and weather conditions on ship fuel consumption and CO2 emission is presented. A reliable methodology for estimating the attainable ship speed, fuel consumption and CO2 emission in different sea states is described. 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 attainable ship speed is obtained as time series. Correlation of speed loss with sea states allows predictions of propulsive performance in actual seas. If the computation is used for weather routing purposes, values for various ship initial speed, loading conditions and heading angles for each realistic sea‐state must be provided. The voluntary speed loss is taken into account. The influence of the ship speed loss on various parameters such as fuel consumption and CO2 emissions is presented. To illustrate the presented concept, the ship speed and CO2 emissions in various routes of the Atlantic Ocean are calculated using representative environmental design data for the track of the routes where the ship will sail. |
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