@article{GENERAL, author = {Fox, TE and Minty, D and O'Keefe, SM and Taylor, JG}, url = {http://library.imarest.org/record/7698}, journal = {Conference Proceedings of INEC}, title = {Naval Vessel Mission Fuel Expenditure Optimisation}, abstract = {The requirement to maintain and uplift fuel in naval vessels is a necessary operating constraint and, with<br> projections forecasting that fuel oil prices will continue to rise, uplifts need to be scheduled to deconflict with<br> military tasking whilst being financially efficient. This paper presents mission fuel management as an optimisation<br> problem, where analytical techniques are used to explore the impact of intelligent uplifts, intelligent leg<br> speeds and the impact of minimum fuel holding restrictions and hull bio-fouling. Using a representative transit,<br> we demonstrate that relative fuel price differences between ports may be exploited to achieve mission fuel<br> cost savings of 15% to 25%, without impacting mission dates. For time constrained transits, being those with leg<br> speeds limited by the minimum fuel holding restriction, a saving of 4% to 5% is achievable by varying leg speeds.<br> Finally, we conclude that challenging minimum fuel holding requirements can yield up to 5% saving, whilst hull<br> bio-fouling has an almost negligible effect in our model (due to the short time at sea). Extrapolation indicates<br> that whilst fuel consumption will invariably increase for a given speed, it does not affect the fuel uplift decision<br> making.}, number = {GENERAL}, recid = {7698}, address = {2020-02-03}, }