Automotive
Technical Paper

Achieving Ultra-Low NOx Tailpipe Emissions with a High Efficiency Engine

2020-01-1403

04/14/2020

Features
Event
WCX SAE World Congress Experience
Authors
Brad Adelman Navistar, Inc.
Navtej Singh Navistar, Inc.
Paul Charintranond Navistar, Inc.
Josh Manis Navistar, Inc.
Abstract
Content
The current publication considers the benefits of placing a SCR system upstream of the DOC. This will enable rapid light-off of the upstream system. The tradeoff between engine out NOx levels, exhaust temperature, and dosing levels between upstream and downstream SCR will be compared with respect to achieving below 0.05 g/hp-hr NOx over the composite FTP and RMC. NOx conversion efficiency will also be compared with respect to N2O formation and NH3 slip.
Meta Tags
Topics
Selective catalytic reduction (SCR)
Nitrogen oxides
Exhaust pipes
Engines
Communication protocols
Slip
Affiliated or Co-Author
Navistar, Inc.
Details
DOI
https://doi.org/10.4271/2020-01-1403
Pages
8
Citation
Adelman, B., Singh, N., Charintranond, P., and Manis, J., "Achieving Ultra-Low NOx Tailpipe Emissions with a High Efficiency Engine," SAE Technical Paper 2020-01-1403, 2020, https://doi.org/10.4271/2020-01-1403.
Additional Details
Publisher
SAE International
Published
Apr 14, 2020
Product Code
2020-01-1403
Content Type
Technical Paper
Language
English