pre-ignition mechanisms

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Sandia addresses barriers to hydrogen-fueled internal combustion engines

News Article, November 18, 2024 • Pre-ignition is one of the key barriers preventing hydrogen-fueled combustion engines from achieving efficiency and power-density parity with current diesel powertrains. To address this issue, Sandia has developed an experimental framework to isolate and study various sources of pre-ignition. The research team recently updated the framework with a new methodology...
Conceptual schematic of the pre-ignition mechanisms in a hydrogen-fueled internal combustion engine (left). A multi-camera, high-speed system for testing and visualizing oil pre-ignition using Sandia's optical engine (right).