Modeling HCCI using CFD and Detailed Chemistry with Experimental Validation and a Focus on CO Emissions

Conference · Mon Apr 23 00:00:00 EDT 2007

OSTI ID:908904

Hessel, R; Foster, D; Aceves, S; Flowers, D; Pitz, B; Dec, J; Sjoberg, M; Babajimopoulos, A

Multi-zone CFD simulations with detailed kinetics were used to model engine experiments performed on a diesel engine that was converted for single cylinder, HCCI operation, here using iso-octane as the fuel. The modeling goals were to validate the method (multi-zone combustion modeling) and the reaction mechanism (LLNL 857 species iso-octane), both of which performed very well. The purpose of this paper is to document the validation findings and to set the ground work for further analysis of the results by first looking at CO emissions characteristics with varying equivalence ratio.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 908904
• Report Number(s): UCRL-CONF-230240; TRN: US200722%%962
• Resource Relation: Conference: Presented at: 2007 International Multidimensional Engine Modeling User's Group Meeting, Detroit, MI, United States, Apr 15 - Apr 15, 2007
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
CHEMISTRY
COMBUSTION
DIESEL ENGINES
ENGINES
KINETICS
LAWRENCE LIVERMORE NATIONAL LABORATORY
REACTION KINETICS
SIMULATION
VALIDATION