Volume 24: Sustainable Energy Solutions for a Post-COVID Recovery towards a Better Future: Part VII

Analysis of environmental footprint of a fishing trawler with overview of emission reduction technologies Nikola Vladimir*, Marija Koričan, Maja Perčić, Neven Alujević, Neven Hadžić

Abstract

Energy efficiency and environmental performance become important aspects of all transportation branches involving diesel engines as prime movers. The same is for the fishing sector, where besides ensuring sustainability, one seeks for minimizing operative costs through the reduction of fuel consumption. Ship emissions can be determined at different levels of complexity and accuracy, i.e. by analysing ship technical data and assuming its operative profile, or by direct measurements of key parameters and their postprocessing to obtain exact amounts of exhaust gases. This paper deals with the analysis of the environmental footprint of a fishing trawler operating in the Adriatic Sea, including both Well-to-Pump (WTP) and Pump-to-Wake (PTW) phases of the fuel. Based on the data on fuel consumption and exploitation scenarios of the considered ship, provided by the ship-owner, the ship emissions have been determined. Also, a review of different emission reduction technologies has been provided Among various alternatives to diesel enginepowered fishing vessels a hydrogen-powered option is considered, where the obtained results show that hydrogen is rather far from application in the Croatian fishing sector.

Keywords Fishing trawler; ship power system; exhaust gas; decarbonization; alternative fuels