TY - JOUR
T1 - Lean NOx trap modeling for vehicle systems simulations
AU - Gao, Zhiming
AU - Chakravarthy, Kalyana
AU - Daw, Charles
AU - Conklin, James
PY - 2010/8
Y1 - 2010/8
N2 - A transient, one-dimensional lean NOx trap (LNT) model is described and implemented for vehicle systems simulations. The model accounts for conservation of chemical species and thermal energy, and includes the effects of O2 storage and NOx storage (in the form of nitrites and nitrates). Nitrites and nitrates are formed by diffusion of NO and NO2, respectively, into sorbent particles, and reaction rates are controlled by chemical kinetics and solid-phase diffusion. The model also accounts for thermal aging and sulfation by means of empirical correlations, which have been derived from laboratory experiments. Example simulation results using the Powertrain Systems Analysis Toolkit (PSAT) are presented.
AB - A transient, one-dimensional lean NOx trap (LNT) model is described and implemented for vehicle systems simulations. The model accounts for conservation of chemical species and thermal energy, and includes the effects of O2 storage and NOx storage (in the form of nitrites and nitrates). Nitrites and nitrates are formed by diffusion of NO and NO2, respectively, into sorbent particles, and reaction rates are controlled by chemical kinetics and solid-phase diffusion. The model also accounts for thermal aging and sulfation by means of empirical correlations, which have been derived from laboratory experiments. Example simulation results using the Powertrain Systems Analysis Toolkit (PSAT) are presented.
UR - http://www.scopus.com/inward/record.url?scp=78649739841&partnerID=8YFLogxK
U2 - 10.4271/2010-01-0882
DO - 10.4271/2010-01-0882
M3 - Article
AN - SCOPUS:78649739841
SN - 1946-3952
VL - 3
SP - 468
EP - 485
JO - SAE International Journal of Fuels and Lubricants
JF - SAE International Journal of Fuels and Lubricants
IS - 1
ER -