Version 1
: Received: 3 June 2024 / Approved: 4 June 2024 / Online: 5 June 2024 (14:17:31 CEST)
How to cite:
De Simio, L.; Marchitto, L.; Iannaccone, S.; Pennino, V.; Altieri, N. Experimental Optimization of Natural Gas Injection Timing in a Dual-Fuel Marine Engine to Minimize GHG Emissions. Preprints2024, 2024060231. https://doi.org/10.20944/preprints202406.0231.v1
De Simio, L.; Marchitto, L.; Iannaccone, S.; Pennino, V.; Altieri, N. Experimental Optimization of Natural Gas Injection Timing in a Dual-Fuel Marine Engine to Minimize GHG Emissions. Preprints 2024, 2024060231. https://doi.org/10.20944/preprints202406.0231.v1
De Simio, L.; Marchitto, L.; Iannaccone, S.; Pennino, V.; Altieri, N. Experimental Optimization of Natural Gas Injection Timing in a Dual-Fuel Marine Engine to Minimize GHG Emissions. Preprints2024, 2024060231. https://doi.org/10.20944/preprints202406.0231.v1
APA Style
De Simio, L., Marchitto, L., Iannaccone, S., Pennino, V., & Altieri, N. (2024). Experimental Optimization of Natural Gas Injection Timing in a Dual-Fuel Marine Engine to Minimize GHG Emissions. Preprints. https://doi.org/10.20944/preprints202406.0231.v1
Chicago/Turabian Style
De Simio, L., Vincenzo Pennino and Nunzio Altieri. 2024 "Experimental Optimization of Natural Gas Injection Timing in a Dual-Fuel Marine Engine to Minimize GHG Emissions" Preprints. https://doi.org/10.20944/preprints202406.0231.v1
Abstract
Phased injection of natural gas into internal combustion marine engines is a promising solution for optimizing performance and reducing harmful emissions, particularly unburned methane, a potent greenhouse gas. This innovative practice distinguishes itself from continuous injection because it allows for more precise control of the combustion process with only a slight increase in system complexity. By synchronizing the injection of natural gas with the intake and exhaust valve opening and closing times while also considering the gas path in the manifolds, methane release into the atmosphere is significantly reduced, making a substantial contribution to efforts to address climate change. Moreover, phased injection improves the efficiency of marine engines, resulting in reduced overall fuel consumption, lower fuel costs, and increased ship autonomy. This technology has been tested on a single-cylinder, large-bore, four-stroke research engine designed for marine applications, operating in dual-fuel mode with diesel and natural gas. Performance was compared with that of the conventional continuous feeding method. Evaluation of the effect on equivalent CO2 emissions indicates a potential reduction of up to approximately 20%. This reduction effectively brings greenhouse gas emissions below those of the diesel baseline case, especially when injection control is combined with supercharging control to optimize the air-fuel ratio.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
