Hydrogen internal combustion engines (H2-ICE) and hydrogen fuel cells still have challenges to meet to bring production of commercial and off-highway vehicles to fruition. More than a high-level overview, this 60-minute webinar from the editors of Truck & Off-Highway Engineering will take a deep dive into the technology advancements and technical challenges yet to conquer. Acknowledging that significant infrastructure challenges exist, this webinar will focus on the readiness level of the onboard systems and components necessary to power the next generation of vehicles as well as the modeling, simulation, and testing taking place to make it all possible.
Topics include:
- The challenges of H2 in ICE
- Flame flashback/backfiring and higher NOx emissions due to higher flame temperatures
- Newer turbocharger design requirements
- Reduced combustion stability and increased fire risk due to wider flammability range, higher flame-speed, tendency of transition to detonation, and smaller quenching distances of H2
- Hot spots due to higher flame temperatures, which can lead to undesirable preignition and knock
- Fire hazards from H2 leakage through the piston rings into the crankcase
- Using high-fidelity computational fluid dynamics (CFD) modeling for finding innovative solutions to these challenges and mitigated risks
- The specific numerical tools required for H2-ICE modeling
- Selecting a useful CFD tool with advanced features and reduced time to solution
- Barriers to widespread adoption:
- Total cost of ownership vs. incumbent powertrain technologies
- Current infrastructure and availability challenges due to fuel cost.
- How additive hydrogen engine technologies that produce competitive power density and promote high efficiency can help reduce these barrier
- The important role component advancements within the fuel cell balance-of-plant must play in aligning fuel cell powertrains’ durability with that of incumbent diesel ICE powertrains
- Why H2- ICE is an important bridge technology to fuel cells in some markets and a longer-term technology solution in others
An audience Q&A session will follow the technical presentation.
Speakers:
Mike Bunce, Ph.D., Head of Research and Head of Design & Analysis, MAHLE Powertrain
Dr. Mike Bunce is the Head of Research and the Head of Design & Analysis for MAHLE Powertrain’s U.S. group, where he has worked for 12 years. His group’s research topics include advanced combustion, low life-cycle carbon fuels including hydrogen, electrification, and fuel cells. Mike holds a Ph.D. in mechanical engineering from the University of Nottingham.
Sameera Wijeyakulasuriya, Ph.D., Project Manager, Convergent Science
Dr. Sameera Wijeyakulasuriya is a Project Manager at Convergent Science, where he leads one of the application and support teams working with CONVERGE clients from around the world. He also manages the feature validation team in which all the physics-based models in CONVERGE software are validated to ensure prediction accuracy. Sameera has more than 15 years of combustion device modeling experience such as internal combustion engines, gas turbines, rotating detonation engines, and wave rotors. He has authored more than 50 peer-reviewed publications on topics including detailed chemistry modeling in H2 combustion engines. Sameera holds a Ph.D. in mechanism engineering from Purdue University, where he studied pressure-gain combustion devices for power generation.
Moderator:
Amanda Hosey, Editor, SAE Media Group
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