Singapore Institute of Technology

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Comparison of Diesel and Green Ship Carbon Emissions with A-Star Route Optimization

conference contribution
posted on 2023-11-06, 09:38 authored by Mohammad Zakir Bin Mohd Ridwan, Malcolm Yoke Hean LowMalcolm Yoke Hean Low, Weidong LinWeidong Lin

Approximately 2% of the world's carbon dioxide (CO2) emissions are attributed to international shipping, with the main source of carbon emissions from ships coming from the marine engines' consumption of fossil fuels, especially heavy fuel oil. With the use of the A* algorithm for route optimization, this study compares the carbon emissions of diesel and greener ships by simulating the routing of 5000 TEU container ships through different weather conditions. In the study, data from dependable sources are gathered, carbon emissions are calculated, and routes are optimised utilising the A* algorithm. The outcomes show the discrepancies in carbon emissions between diesel and green ships, and the algorithm's success in lowering emissions through optimal route planning is demonstrated. The research highlights the significance of switching to more environmentally friendly options whilst providing useful information for the shipping industry. The study concludes with suggestions for more investigation and advancements in carbon emission reduction tactics. By utilizing the A* algorithm, this research enhances the study of ship emissions analysis while developing environmentally responsible behaviour in the marine industry.


Journal/Conference/Book title

22nd Asia Simulation Conference, AsiaSim 2023, Langkawi, Malaysia, October 25–26, 2023.

Publication date



  • Post-print

Corresponding author

Malcolm Yoke Hean Low