Abdullah Alramadan

The hydrogen internal combustion engine (H2ICE) represents a promising pathway to integrate hydrogen into the transport sector by utilizing existing internal combustion engine (ICE) infrastructure, offering a practical and cost-effective solution for transitioning to hydrogen-based technologies. Hydrogen’s unique properties, such as its zero-carbon nature and fast combustion rate, make it an attractive fuel option. However, realizing its full potential requires addressing several technical challenges.

This presentation will discuss the prospects of H2ICE as a bridging solution, beginning with the benefits of hydrogen as a fuel and its compatibility with established ICE platforms. Key technical challenges will be highlighted, starting with the design of the gaseous fuel injection system, including the optimization of injection pressures to achieve efficient and stable combustion. The phenomenon of pre-ignition and its impact on abnormal combustion, such as knocking, will also be explored, along with potential mitigation strategies.

Additionally, the absence of hydrogen's lubricating properties introduces durability concerns, compounded by the significant production of water during combustion, which can dilute conventional lubricants. These challenges necessitate the development of new lubricant formulations designed for H2ICE applications. Finally, the presentation will address the importance of advanced aftertreatment systems to manage NOx emissions, ensuring compatibility with regulatory and environmental requirements.

By tackling these challenges, the H2ICE offers a practical approach to fostering hydrogen use in transport, bridging the gap to more widespread hydrogen adoption while leveraging the familiarity and scalability of existing ICE technologies.