Gas Engines

• Optical diagnostics for lean premixed natural gas engine ignition systems (pre-chambers, dual fuel micro-pilots and advanced spark ignition concepts)
• Characterization of non-premixed high-pressure direct injection (HPDI) combustion concepts
•  Predictive computational tools for pre-chamber, dual fuel and HPDI combustion
• Deeper understanding of knock and pre-ignition for enhanced numerical models
• Improved understanding/models for flame-wall interaction, heat transfer and CH₄/NH₃ slip

The CO₂ reduction potential of fossil natural gas combustion amounts to 25% compared to Diesel (and up to 50% compared to coal) due to the beneficial C/H ratio, while for bio-derived fuels and e-fuels considerably higher savings are possible. The use of local resources, e.g. CH₄ from non-conventional exploration or bio-derived origin, landfill gases, as well as e-fuels from power-to-x processes also improves energy security. Rapid deployment is possible since gas engines build on existing proven technology employed in Diesel and gasoline engines. With technology advances, such as improved lean-burn combustion/ignition systems, Diesel-like fuel efficiencies are possible in conjunction with substantial CO₂ savings and ultra-low emissions. Gaseous e-fuel powered ICEs can provide unparalleled well-to-wheel greehouse-gas reductions, even relative to electric vehicles. Furthermore, fuel flexibility, e.g. H₂ addition or low reactivity fuels such as NH₃ and rapid load up-take capabilities make stationary gas engines ideal for large-scale or decentralized grid balancing.

Publications relating to Gas Engines:

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