Ship emission reduction measures and speed optimization considering ECA&nbsp; boundary width

WANG Dan, ZHANG Heng

doi:10.16411/j.cnki.issn1006-7736.2024.04.006

Journal of Dalian Maritime University >

2024 , Vol. 50 >Issue 4: 49 - 58

DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2024.04.006

Ship emission reduction measures and speed optimization considering ECA boundary width

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(1.Transportation Engineering College, Dalian Maritime University, Dalian 116026, China；2. Simens Energy Transformer(Jinan) Co., Ltd., Jinan 250013, China)

Online published: 2024-09-18

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Abstract

Considering the impact of the boundary width of the emission control area (ECA), a mixed-integer nonlinear programming model is established with the objective of minimizing the total operational costs of the vessel, thereby optimizing emission reduction strategies and sailing speed. The Southeast Asian route of a certain company is taken as an example for solution and sensitivity analysis. Results show that the cost comparison of different emission reduction schemes is mainly affected by the level of fuel oil prices, while carbon taxes have no impact on the cost comparison results of different schemes. From the current various fuel oil prices, desulfurization towers installation is the most economical emission reduction measure, which is followed by the ECA internal and external fuel conversion strategy, using MGO fuel strategy, and using LNG fuel strategy, respectively. As the width of ECA decreases and the difference in fuel oil prices decreases, the cost of fuel conversion schemes will be lower than that of installing desulfurization towers. When the initial investment cost of using LNG fuel is reduced to 80% or less, or the price of LNG fuel is reduced to 50% or less, while the price of MGO fuel is invariable or higher, the cost of using LNG fuel will be lower than that of using MGO fuel. The setting of the ECA width will affect the emission reduction strategy of shipping companies, while by appropriately increasing the width of the ECA, the behavior of ship companies switching fuels inside and outside the ECA can be reduced.

Key words： ship emission reduction; emission reduction measures; emission control area（ECA）; boundary width; optimization of sailing speed; mixed integer nonlinear programming

Cite this article

WANG Dan, ZHANG Heng . Ship emission reduction measures and speed optimization considering ECA boundary width[J]. Journal of Dalian Maritime University, 2024 , 50(4) : 49 -58 . DOI: 10.16411/j.cnki.issn1006-7736.2024.04.006

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