Reducing fuel emissions by optimizing speed on shipping routes

Reducing fuel emissions by optimizing speed on shipping routes

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Article ID: iaor2010940
Volume: 61
Issue: 3
Start Page Number: 523
End Page Number: 529
Publication Date: Mar 2010
Journal: Journal of the Operational Research Society
Authors: , ,
Keywords: energy
Abstract:

Fuel consumption and emissions on a shipping route are typically a cubic function of speed. Given a shipping route consisting of a sequence of ports with a time window for the start of service, substantial savings can be achieved by optimizing the speed of each leg. This problem is cast as a non-linear continuous program, which can be solved by a non-linear programming solver. We propose an alternative solution methodology, in which the arrival times are discretized and the problem is solved as a shortest path problem on a directed acyclic graph. Extensive computational results confirm the superiority of the shortest path approach and the potential for fuel savings on shipping routes.

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