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Experimental Investigation of the Potential of Hydrogen as an Alternative to Brazilian Commercial Diesel Fuel in Current Heavy-Duty Fleet Pontifical Catholic University of Rio de Janeiro (DEM PUC-
- Format:
- Book
- Conference/Event
- Author/Creator:
- Assis, Guilherme, author.
- Conference Name:
- SAE Brasil 2024 Congress (2024-10-16 : Sao Paolo, Brazil)
- Language:
- English
- Physical Description:
- 1 online resource cm
- Place of Publication:
- Warrendale, PA SAE International 2024
- Summary:
- Mobility in Brazil, dominated by road transportation, is responsible for consuming around a third of the energy matrix and for emitting approximately half of the energy-related emissions in the country. Among the alternatives to reduce its greenhouse gas emissions, the use of low-carbon hydrogen has a strong potential for decarbonization and improvement of engine efficiency. Thus, this study experimentally investigated the partial replacement of commercial diesel (with 12% of fatty acids methyl esters (FAME) biodiesel) by hydrogen in a commercial vehicle equipped with a compression-ignition internal combustion engine. To investigate the effects of this substitution on performance and emission profile, the vehicles was adapted for dual-fuel operation and hydrogen was injected together with air into the MB OM 924 LA engine of a Mercedes-Benz Accelo 1016 vehicle. Tests were carried out on a chassis dynamometer with 0%, 2% and 4% slope and at speeds equal to 50, 60 and 70 km/h to simulate various loads. For each of these combinations, commercial diesel was replaced by hydrogen with hydrogen energy share of 0%, 2%, 4%, 6%, 8% and 10%, respectively. The results showed that replacing commercial diesel with hydrogen resulted in a relative reduction of up to 17.6% in CO2 emissions, 13.7% in CO and 25.5% in THC. However, the results of the performance parameters showed no improvement in efficiency under the tested conditions, with a reduction of up to 20.8% in thermal efficiency and an increase of up to 26.3% in specific fuel consumption. In conclusion, with minimal alterations, the results obtained with a commercial vehicle demonstrated the feasibility of hydrogen as a promising alternative fuel for use in compression ignition engines in the current fleet to reduce emissions
- Notes:
- Vendor supplied data
- Publisher Number:
- 2024-36-0069
- Access Restriction:
- Restricted for use by site license
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