A New Method for Calculating Fuel Consumption by Using Speed Loss Function

Abstract

The most important factor affecting fuel consumption is the speed of service. There are many formulas that give the relationship between service speed and fuel consumption. These formulas ignore the weight of the load on the ship or the wind speed. For example, Beaufort numbers and Aertssen numbers are neglected. This neglect makes it difficult to predict the amount of fuel that the ship will consume on the road at each departure. For example, a trip against wind resistance will increase the margin of error of estimated fuel consumption. Although this error does not cause major changes, it will affect the ship's total fuel consumption in the long period. This period can also effect cost of the shipping companies. In this study, the formula which does not neglect the wind speed and load weight is put forward and fuel consumption is modelled with this formula. In addition, results of this methods and classic calculation are compared. Nevertheless, hotelling and maneuvering of the ship are neglected while calculating.