Article

Multi-dimensional modeling of the application of catalytic combustion to homogeneous charge compression ignition engine

Journal of Thermal Science (impact factor: 0.31). 01/2006; 15(4):371-376. DOI:10.1007/s11630-006-0371-5 pp.371-376

ABSTRACT The detailed surface reaction mechanism of methane on rhodium catalyst was analyzed. Comparisons between numerical simulation
and experiments showed a basic agreement. The combustion process of homogeneous charge compression ignition (HCCI) engine
whose piston surface has been coated with catalyst (rhodium and platinum) was numerically investigated. A multi-dimensional
model with detailed chemical kinetics was built. The effects of catalytic combustion on the ignition timing, the temperature
and CO concentration fields, and HC, CO and NOx emissions of the HCCI engine were discussed. The results showed the ignition timing of the HCCI engine was advanced and the
emissions of HC and CO were decreased by the catalysis.

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Keywords

catalysis
 
catalytic combustion
 
CO concentration fields
 
combustion process
 
Comparisons
 
detailed surface reaction mechanism
 
emissions
 
HCCI engine
 
homogeneous charge compression ignition
 
ignition timing
 
NOx emissions
 
numerical simulation
 
rhodium
 
rhodium catalyst