The Digest’s 2025 Multi-Slide Guide to High-Efficiency Mixing Controlled Compression Ignition Combustion of Propane Dimethyl Ether (DME) Blends

This project develops Mixing Controlled Compression Ignition (MCCI) for propane/DME blends. Technology advances include a high-pressure fuel system capable of over 1100 bar injection and CFD optimization utilizing exhaust rebreathing to stabilize combustion. The impact is achieving diesel-equivalent efficiency (≥37.1%) and enabling a potential 15% reduction in CO2 emissions compared to conventional propane engines, leveraging renewable DME for further GHG reductions.