Combustion Lean Limits Fundamentals And Their Application To A Si Hydrogen Enhanced Engine Concept

Download or read book Combustion Lean Limits Fundamentals and Their Application to a SI Hydrogen-enhanced Engine Concept written by Ferran Alberto Ayala and published by . This book was released on 2006 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: (Cont.) This can be done by increasing turbulence, effectively decreasing its microscale structure or by increasing the laminar flame speed through hydrogen enhancement. Hydrogen enhancement using reformate shows diminishing returns at high loads and high compression ratios due to the detrimental effect of high pressures on laminar flame speed. As suggested by the model, reducing the engine's baseline combustion variability during flame initiation can also extend the lean limit. These conclusions are confirmed through experimental results.