Date of Award
2011
Publication Type
Master Thesis
Degree Name
M.A.Sc.
Department
Mechanical, Automotive, and Materials Engineering
Supervisor
Zheng, Ming
Rights
info:eu-repo/semantics/openAccess
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Abstract
A long breathing strategy was investigated as a method for reducing the supplemental energy consumption of a diesel lean NOx trap (LNT). Empirical tests were performed on a heated flow bench set-up. The test results indicated that the LNT adsorption (breathing) time increased exponentially when the nitrogen oxide (NOx) level in the feed gas was reduced. Longer adsorptions led to supplemental energy savings due to less frequent LNT regeneration. In these tests, supplemental energy savings of over 70% were achieved with a long breathing LNT compared to a traditional LNT. Additional empirical tests investigated the concept of on-board hydrogen generation due to its potential benefits to an after-treatment system. The test findings revealed that the reformer temperature was a critical factor for on-board hydrogen generation. Further numerical and empirical tests revealed the benefits of utilizing a flow reversal system for hydrogen generation.
Recommended Citation
Jeftic, Marko, "A long breathing lean NOx trap for diesel after-treatment supplemental energy reduction" (2011). Electronic Theses and Dissertations. 8131.
https://scholar.uwindsor.ca/etd/8131