Affiliation:
1. CMT – Clean Mobility & Thermofluids, Universitat Politècnica de València, Valencia, Spain
Abstract
The concerns for global warming have pushed very harsh regulations on conventional propulsion systems based on the use of fossil fuels. New technologies are being promoted, but their current technological status needs further research and development to become a competitive substitute for the ever-present internal combustion engine. Transition technologies like hybrid-electric platforms are the preferred solution, but their dependence on the internal combustion engine demands continued developing and improving this technology. Advanced combustion modes like dual-mode dual-fuel combustion are attractive solutions with room for improvement. This work evaluates the specifics of the hydrocarbon composition emitted during the operation of a medium-duty dual-mode dual-fuel engine, analyzing the specific requirements of a diesel oxidation catalyst for this application. Also, the modeling approach of this after-treatment component is revised for this type of application, proposing a new approach and evaluating numerically the performance of a conventional diesel oxidation catalyst. The results show that the new modeling approach brings better accuracy when modeling the transient operation of the engine.
Reference51 articles.
1. Future vehicle energy supply - sustainable design and operation of hybrid hydrogen and electric microgrids
2. Muncrief R, Rodríguez F. A roadmap for heavy-duty engine CO2 standards within the European Union framework. 2017. DOI:10.13140/RG.2.2.11662.25922.
3. European Commission. Proposal for a Regulation of the European Parliament and the Council on type-approval of motor vehicles and engines and of systems, components and separate technical units intended for such vehicles, with respect to their emissions and battery durability (Euro 7) and repealing Regulations (EC) No 715/2007 and (EC) No 595/2009. 2022.
4. The impedance of hydrogen oxidation reaction in a proton exchange membrane fuel cell in the presence of carbon monoxide in hydrogen stream
5. Impact of fuel cell range extender powertrain design on greenhouse gases and NOX emissions in automotive applications