Towards Least-CO2 Ferry Routes in the Adriatic Sea

Journal of Marine Science and Engineering

CharlotteP. Martinkus¹  Josip Orović²  Lorenzo Carelli³  Gianandrea Mannarini³  Giovanni Coppini³ 

[1] Formely at Centro Euro-Mediterraneo sui Cambiamenti Climatici, 73100 Lecce, Italy;Maritime Department, University of Zadar, 23000 Zadar, Croatia;Ocean Predictions and Applications Division, Centro Euro-Mediterraneo sui Cambiamenti Climatici, 73100 Lecce, Italy;

关键词: routing;    ferry;    emissions;    CO₂;    carbon intensity;    waves;   

DOI  :  10.3390/jmse9020115

来源: DOAJ

【 摘 要 】

Carbon intensity of ship emissions is a cornerstone of contemporary regulatory actions, with measurable targets of reduction being enforced in the coming decade. Short term measures to achieve them include voyage optimization. Therefore, the VISIR ship routing model was upgraded for computing least-CO${}_2$ routes depending on ocean analysis products related to waves and sea currents. The speed loss in waves and the CO${}_2$ emission rate of a medium size Ro-Pax ship were obtained from a coupled command-bridge engine-room simulator. The geographical and topological features of least-CO${}_2$ routes resulting from VISIR were characterised by means of various types of isolines. A case study in the Adriatic Sea leads to bundles of optimal routes with significant spatial diversions even on short-sea routes. The carbon intensity savings were compared to the CO${}_2$ savings, highlighting also their dependence on both route lengthening and fractional engine load. For a case study in winter, carbon intensity reductions up to 11% were computed with respect to least-distance routes between the same couple of ports of call. This is promising, as a reduction of this magnitude represents a significant amount of the carbon intensity curbing target required at International level.

【 授权许可】

Unknown