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 Mina Tadros,Manuel Ventura,C. Guedes Soares.Optimization of the Performance of Marine Diesel Engines to Minimize the Formation of SOx Emissions[J].Journal of Marine Science and Application,2020,(3):473-484.[doi:10.1007/s11804-020-00156-0]
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Optimization of the Performance of Marine Diesel Engines to Minimize the Formation of SOx Emissions


Optimization of the Performance of Marine Diesel Engines to Minimize the Formation of SOx Emissions
Mina Tadros Manuel Ventura C. Guedes Soares
Mina Tadros Manuel Ventura C. Guedes Soares
Centre for Marine Technology and Ocean Engineering(CENTEC), Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
Marine diesel engineStandard proceduresSOx emissionsSurrogate modelResponse surface methodology
Optimization procedures are required to minimize the amount of fuel consumption and exhaust emissions from marine engines. This study discusses the procedures to optimize the performance of any marine engine implemented in a 0D/1D numerical model in order to achieve lower values of exhaust emissions. From that point, an extension of previous simulation researches is presented to calculate the amount of SOx emissions from two marine diesel engines along their load diagrams based on the percentage of sulfur in the marine fuel used. The variations of SOx emissions are computed in g/kW·h and in parts per million (ppm) as functions of the optimized parameters:brake specific fuel consumption and the amount of air-fuel ratio respectively. Then, a surrogate model-based response surface methodology is used to generate polynomial equations to estimate the amount of SOx emissions as functions of engine speed and load. These developed non-dimensional equations can be further used directly to assess the value of SOx emissions for different percentages of sulfur of the selected or similar engines to be used in different marine applications.


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Received date:2019-10-18;Accepted date:2020-04-22。
Foundation item:This work was performed within the Strategic Research Plan of the Centre for Marine Technology and Ocean Engineering (CENTEC), which is financed by Portuguese Foundation for Science and Technology (Fundação para a Ciência e Tecnologia (FCT)), under contract UID/Multi/00134/2013-LISBOA-01-0145-FEDER-007629.
Corresponding author:Mina Tadros,mina.tadros@centec.tecnico.ulisboa.pt
Last Update: 2020-11-21