Member of the Management Board Mahle GmbH
Thermal management is one of the key technologies in today's and future vehicles and drivetrains.
The cooling and heating systems for alternative drivetrains are considerably more complex than for conventional powertrains.
The key keywords are thermal battery conditioning, interior air conditioning and integrated system approaches for future e-mobility powertrains.
AVL ITALIA S.R.L.
With the Green Deal and the Paris Agreement, the European Commission set the main long-term goals: climate neutrality and zero emissions within 2050. The current policy scenario is favoring the development of the electric mobility as a way to reduce CO2 impact.
However, without a full transition towards renewables energy, the CO2 impact will be even worse, not only from an environmental perspective, but also in the socio-economic context. As several factors need to be considered in the CO2 balance, the electrification cannot be the only solution on the table.
Alternative pathways should be developed and multi-technology portfolio need to be implemented, where hydrogen will play a key role.
Roberto Golisano, Francesco Pesce, Alberto Vassallo
Hydrogen is quickly becoming a viable solution for Fuel Cell systems as well as Internal Combustion Engines if produced by renewable sources and exploited by means of modern technologies, which were not available until just a few years ago. To achieve truly zero emission impact adopting hydrogen-fueled ICEs, the main hurdles are related to injection, ignition and aftertreatment systems.
The approach for injection system has the goal to mitigate gaseous fuel effect in terms of volumetric efficiency drop and to avoid any risk of backflow and backfire for a completely safe operation. To guarantee stable combustion under lean and diluted conditions - necessary to achieve the high efficiency and ultra-low NOx emissions - high performance, specially-tuned ignition systems are required.
Finally, the extremely low levels of nitrogen oxides generated by lean and diluted hydrogen combustion can be efficiently reduced by means of Selective Catalytic Reduction that can be further optimized from the significant experience matured on Diesel engines.
The appropriate matching and integration of the above-described core systems on a Diesel-derived H2-ICE base engine can enable a compelling proposition for commercial applications featuring >45 kW/l power density and BTE above 40% in a large portion of engine operating area.
André Casal Kulzer
- eFuels are a necessary complement to E-Mobility and their production is based on green hydrogen;
- Within an adapted EN228 framework, optimized blending could lead to better eFuel quality and further emission reduction within the existing stock fleet.
- Next Gen eFuels offer a large variety of opportunities for furtherperformance and emission potentials within a prospective fuel standard
Imad A. Khalek
Southwest Research Institute
Internal combustion engines (ICEs) have been under pressure lately because of the electric vehicle (EV) revolution. The impression you get from reading the news is that ICEs are going away soon. Rest assured that ICE-based engines are here to stay for a long time. However, to match the EV revolution, we need to have a new ICE revolution targeting negative tailpipe emissions, effectively cleaning the air, rather than simply responding to regulatory pressure, and barely meeting emissions regulations in the laboratory.
The theme of my talk is to discuss the progress made in engine tailpipe emissions reduction and identify some key areas requiring further improvements targeting cleaner air at the tailpipe.
University of Orléans Polytech Orléans / Laboratoire PRISME
Several countries, consortia and industries are increasingly publicizing in the press their willingness to consider ammonia as one of the zero carbon footprint fuels of the future. However, the history of ammonia as a fuel for internal combustion engines, which began nearly 80 years ago, is not linear with a real long-term strategy. Until recently, the majority of studies have been done using 0D modelling with experiments performed in CFR. It can be noted that ammonia-based combustion vehicles are not ready to be marketed, not only because of supply and safety issues but also because of its combustion characteristics compared to conventional fuels.
To supply ammonia either partially in current internal combustion engines to limit carbon footprint or as main fuel for specific design engines to reach zero carbon footprint, the technological challenges (dual fuel or unique fuel, SI or CI engines …) could be different as a function of the final use.
During this talk, the main issues, both scientific and technological will be highlighted through recent studies currently conducted in internal combustion engine, with some indications about the performance, pollutant emissions and operating limits.
Chairman of the Board of Trustess FKFS
-The keynote speech deals with powertrains for lawn and garden products.
-Combustion engines but also battery-electric engines have their advantages and disadvantages.
-There is no one and only solution. In total, there is an increase the market for both types.
-Could this be an example for other industries like automotive, motorcycles or scooters?