The maritime industry faces a significant challenge in reducing carbon emissions and meet the decarbonization targets imposed by the International Maritime Organization and the European Union. To reach these targets, the use of renewable energies and alternative fuels (i.e. low and zero emissions fuel) is crucial. In this framework, this paper analyses the impact of alternative fuel adoption on future decarbonization goals, by focusing on a fleet of cruise ships navigating on the Caribbean, Mediterranean Seas and transatlantic routes. Fuels penetration and their influence on target achievement using metrics like the Carbon Intensity Indicator are considered in the analysis. To address these objectives and conduct a comprehensive analysis for the selection of short-, mid-, and long-term measures, a dynamic energy simulation tool was developed and used for assessing the energy and environmental performance of the ship energy system by considering on-board load variability and different fuels. Methanol, liquified natural gas and heavy fuel oil are included in the analysis by considering different scenarios involving a referent fleet of ships. The proposed modelling approach focus on the assessment of on-board thermal loads and energy flows for the effective evaluation of fuel consumptions for proper selection of candidate measures, including polygeneration systems and fuels. For each ship of the investigated fleet, by means of the developed simulation tool it was possible to assess: i) thermal loads through a detailed 3D ship model coupled with customised hourly weather data, and ii) waste heat availability and recovery at different temperature levels by considering different energy plant system layouts. The analysis explores different scenarios and their implications for alternative fuels adoption. This assessment is essential for guiding stakeholders and informing policymakers to develop a clear strategy for the reduction of GHG emissions.
Toward decarbonized shipping: the rise of alternative fuels in maritime policies / Barone, Giovanni; Buonomano, Annamaria; DEL PAPA, Gianluca; Forzano, Cesare; Giuzio, GIOVANNI FRANCESCO; Maka, Robert; Palombo, Adolfo; Russo, Giuseppe. - (2024). (Intervento presentato al convegno 19th SDEWES Conference on Sustainable Development of Energy, Water and Environment Systems tenutosi a Rome, Italy nel Settembre 2024).
Toward decarbonized shipping: the rise of alternative fuels in maritime policies
Giovanni Barone;Annamaria Buonomano;Gianluca Del Papa;Cesare Forzano;Giovanni Francesco Giuzio;Robert Maka;Adolfo Palombo;Giuseppe Russo
2024
Abstract
The maritime industry faces a significant challenge in reducing carbon emissions and meet the decarbonization targets imposed by the International Maritime Organization and the European Union. To reach these targets, the use of renewable energies and alternative fuels (i.e. low and zero emissions fuel) is crucial. In this framework, this paper analyses the impact of alternative fuel adoption on future decarbonization goals, by focusing on a fleet of cruise ships navigating on the Caribbean, Mediterranean Seas and transatlantic routes. Fuels penetration and their influence on target achievement using metrics like the Carbon Intensity Indicator are considered in the analysis. To address these objectives and conduct a comprehensive analysis for the selection of short-, mid-, and long-term measures, a dynamic energy simulation tool was developed and used for assessing the energy and environmental performance of the ship energy system by considering on-board load variability and different fuels. Methanol, liquified natural gas and heavy fuel oil are included in the analysis by considering different scenarios involving a referent fleet of ships. The proposed modelling approach focus on the assessment of on-board thermal loads and energy flows for the effective evaluation of fuel consumptions for proper selection of candidate measures, including polygeneration systems and fuels. For each ship of the investigated fleet, by means of the developed simulation tool it was possible to assess: i) thermal loads through a detailed 3D ship model coupled with customised hourly weather data, and ii) waste heat availability and recovery at different temperature levels by considering different energy plant system layouts. The analysis explores different scenarios and their implications for alternative fuels adoption. This assessment is essential for guiding stakeholders and informing policymakers to develop a clear strategy for the reduction of GHG emissions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
