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
Y1 - 2010
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 O 2 storage and NO x storage (in the form of nitrites and nitrates). Nitrites and nitrates are formed by diffusion of NO and NO 2, 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 O 2 storage and NO x storage (in the form of nitrites and nitrates). Nitrites and nitrates are formed by diffusion of NO and NO 2, 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=85072369064&partnerID=8YFLogxK
U2 - 10.4271/2010-01-0882
DO - 10.4271/2010-01-0882
M3 - Conference article
AN - SCOPUS:85072369064
SN - 0148-7191
SP - 468
EP - 485
JO - SAE Technical Papers
JF - SAE Technical Papers
T2 - SAE 2010 World Congress and Exhibition
Y2 - 13 April 2010 through 13 April 2010
ER -