LIGHT-DUTY DRIVE CYCLE SIMULATIONS OF TAILPIPE EMISSIONS FROM RCCI-ENABLED VEHICLES

摘要

1. Reactivity controlled compression ignition (RCCI) allows precise reaction and heat-release control (1) A low-reactivity fuel is introduced early and premixed with air. (2) A high-reactivity fuel is injected into the premixed charge before ignition. 2. RCCI increases engine operating range for premixed combustion (1) Global fuel reactivity (phasing) (2) Fuel reactivity gradients (pressure rise) 3. RCCI offers both benefits and challenges to implementation of LTC (1) Diesel-like efficiency or better (2) Ultra-Low NO_x and soot (3) Controls and emissions challenges.