Hydrogen-enriched natural gas boosts engine performance and reduces emissions

AI Insight

This simulation study investigates how different fuel injection methods and hydrogen enrichment levels affect combustion processes in compressed natural gas (CNG) engines. The research examines in-cylinder temperature distribution, pressure development, and emissions formation when hydrogen is added to CNG (creating HCNG fuel blends). Results demonstrate that hydrogen enrichment accelerates combustion rates, increases peak cylinder temperatures, and alters pollutant formation patterns compared to pure CNG operation.

Why it matters

The findings provide guidance for optimizing engine designs and injection strategies to improve thermal efficiency and reduce emissions in natural gas vehicles. Hydrogen enrichment of CNG represents a potential pathway for cleaner transportation while utilizing existing natural gas infrastructure.