Comparison of Diesel Pilot Ignition (DPI) and Reactivity Controlled Compression Ignition (RCCI) in a Heavy-Duty Engine

摘要: Due to growing interest in utilizing natural gas as an alternative fuel internal combustion engines, a study on the use of for dual-fuel strategies heavy-duty engine was performed examine diesel pilot ignition (DPI) and reactivity controlled compression (RCCI) strategies. In Part 1 this work, transition between DPI RCCI regimes studied via direct control SOI timing. At relatively rich condition ϕ = 0.72, performance both comparable. 2 effect equivalence ratio each regime examined. It observed that at richer conditions similar. However became leaner, improved degraded combustion. 3 fueling rate explored lean operating (ϕ 0.52). seen has little load increased. The strong influence indicates are recommended applications with air handling systems which generate in-cylinder conditions; allow conditions, is recommended.Copyright © 2015 by ASME