The VISIR ship routing model is augmented with the capability to employ, on top of waves, also ocean currents for optimising vessel routes. A case study for a cargo vessel sailing between the Chesapeake Bay (USA) and Lisbon (Portugal) is considered. The seasonal variability of the route pattern is visualised, with the major ocean boundary current impacting in a specific way, depending on the prevailing sailing direction. In the approximation of CO2 emissions proportional to sailing time, the impact on the Energy Efficiency Operational Indicator (EEOI) proposed by the International Maritime Organization is also computed. The seasonal variability of EEOI demonstrates, for a given parametrisation of vessel energy loss in waves, potential savings in the 3-12% range, with respect to navigation along a least-distance route, and in the 1-5% range, with respect to navigation along a least-time route which neglects the role of ocean currents. These figures refer to monthly mean values, while individual routes may exhibit EEOI savings up to 20% and 6%, respectively.

Mannarini G., Pinardi N., Coppini G. (2018). Low carbon intensity routes via ocean currents and waves. NIEUWE HEMWEG 6B, 1013 BG AMSTERDAM, NETHERLANDS : IOS Press [10.3233/978-1-61499-870-9-340].

Low carbon intensity routes via ocean currents and waves

Mannarini G.;Pinardi N.;
2018

Abstract

The VISIR ship routing model is augmented with the capability to employ, on top of waves, also ocean currents for optimising vessel routes. A case study for a cargo vessel sailing between the Chesapeake Bay (USA) and Lisbon (Portugal) is considered. The seasonal variability of the route pattern is visualised, with the major ocean boundary current impacting in a specific way, depending on the prevailing sailing direction. In the approximation of CO2 emissions proportional to sailing time, the impact on the Energy Efficiency Operational Indicator (EEOI) proposed by the International Maritime Organization is also computed. The seasonal variability of EEOI demonstrates, for a given parametrisation of vessel energy loss in waves, potential savings in the 3-12% range, with respect to navigation along a least-distance route, and in the 1-5% range, with respect to navigation along a least-time route which neglects the role of ocean currents. These figures refer to monthly mean values, while individual routes may exhibit EEOI savings up to 20% and 6%, respectively.
2018
Technology and Science for the Ships of the Future - Proceedings of NAV 2018: 19th International Conference on Ship and Maritime Research
340
347
Mannarini G., Pinardi N., Coppini G. (2018). Low carbon intensity routes via ocean currents and waves. NIEUWE HEMWEG 6B, 1013 BG AMSTERDAM, NETHERLANDS : IOS Press [10.3233/978-1-61499-870-9-340].
Mannarini G.; Pinardi N.; Coppini G.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/962262
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