| The environmental pollution caused by the ship is more widely concerned around the world.The Eighteenth National Congress of the Communist Party of China presents the concept of "green,recycling,low carbon" and especially stresses the great goal of promoting ecological progress and building a beautiful country in future.China set up three SOx Emission Control Areas(SECA)in 2016.The global SECA has been further expanded.Shipping companies must use the expensive fuel which contains lower sulfur in order to enable the ship to the navigation requirements quickly in the short term.At the same time,the International Maritime Organization(IMO)is brewing on marine carbon tax,which affects the economics performance of the shipping companies that are currently in a difficult business situation.Because of the special mathematical relationship among ship fuel consumption,CO2 emissions and sailing speed,the container liner with high speed faces the most severe impact.Considering the new requirement of environmental protection,the container liner company have to redistribute and manage ship resources to cut the cost and increase the profit.The paper applies to the COSCO container lines which has 4 different ship types consisting of a total of 28 container ships and operates 3 typical liner routes passing by the SECA.Considering the limits of sulfur emission control and navigation carbon emission tax,the paper divide the liner routes into SECA and no SECA,and establish the model of fleet deployment and set the maximum profit of container liner company as the objective function.The paper uses genetic algorithms and MATLAB to solve the model to get the plan.What is more,the paper figure out the container ship sailing speeds in different liner routes in SECA and no SECA.The paper proves the feasibility of the model.It also provides a reasonable and effective fleet deployment plan for the container liner company to deal with strict environmental protection requirements in the economic downturn. |
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