Aplicação do método DEA adaptado para determinar o consumo específico em embarcações

Abstract

This paper presents an application based on data envelopment analysis methodology (Data Envelopment Analysis - DEA) able to optimize the process of reducing energy consumption and fuel in vessels considered old and devoid of said intelligent systems engines, and determine the specific consumption of these vessels. This methodology makes use of non-parametric methods multivariate analysis efficiency of borrowing units decision (Decision Making Unit - DMU), which occurs through efficiency rates for certain set of inputs (inputs) and outputs (outputs) of so that the DMU associated with indices corresponding to the unit are considered to be efficient, otherwise inefficient. The choice of this methodology for this work is linked to the need to waste the energy of those vessels, with the reduction of inputs which in this case are fuel and energy. In literature the use of DEA methodology is applied in various areas as economics, engineering, environmental science and health, among others, but there are few DEA applications in studies that use the specific consumption to reduce fuel consumption vessels. The results showed 05 DMUs with low use rates of 08 analyzed 01 band maximum energy efficiency speed and a setting of minimum fuel consumption arranged almost entirely on the use range. The main contribution of this work is the presentation of an application based platform tailored DEA methodology applied in the navigation system of ancient vessels that constitute 75% of the fleet, with an average age of 24 years, which allowed to reduce energy consumption, this is increasing the performance of fuel and energy of the boats used in the Amazon rivers of cargo transportation sector.