Potencial do sistema diesel elétrico para a redução do consumo de combustível fóssil em embarcações de pesca: um estudo de caso do consumo de energia da frota de espinhel de fundo do Rio de Janeiro

Abstract

This thesis concerns a model of the fuel consumption and emissions from the bottom longline fishing fleet at Rio de Janeiro State, Brazil with data comprised vessel and engine characteristics, fuel consumption, landings and fishing trip duration of seventeen longliners operating in Rio de Janeiro between 2015 and 2016. The operational pattern was investigated for this fleet, based on an empirical approach to model the propulsion power requirements of the typical longliner fishing vessel, for diesel and electric diesel systems, comparing them in terms of fuel consumption and GHG emissions. The results of estimated required power for the diesel system revealed that the engines used are much more powerful than necessary, indicating a potential reduction in fuel consumption only with the installation of smaller engines. However, when the operational pattern evaluation is taken into account, it indicates the future potential for diesel-electric propulsion for longliner fishing vessels, as a result of a reduction in fuel consumption.