DPF Acoustic Performance: An Evaluation of Various Substrate Materials and Soot Conditions

Paper #:
  • 2011-01-2198

Published:
  • 2011-09-13
Citation:
Hicks, J., Hill, W., and Kotrba, A., "DPF Acoustic Performance: An Evaluation of Various Substrate Materials and Soot Conditions," SAE Technical Paper 2011-01-2198, 2011, https://doi.org/10.4271/2011-01-2198.
Pages:
6
Abstract:
The Diesel Particulate Filter (DPF) is used on today's diesel vehicles to reduce the amount of soot being released into the atmosphere from diesel exhaust. The DPFs are typically wall-flow filtration devices of various extruded porous ceramic materials with more than 95% efficiency. Once the filter has loaded with soot, the DPF undergoes regeneration where the exhaust temperature is raised to burn off the soot. With the DPF being relatively new aftertreatment technology, the exhaust industry must investigate the acoustic and performance effects of the DPF when added to an exhaust system. In many applications the DPF replaces the exhaust muffler because of limited packaging space. The acoustic performance of the DPF changes with increasing soot density and exhaust backpressure. The acoustic response is measured with physical testing at multiple soot load densities. This study is part of a graduation thesis project for Kettering University[1].
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$28.00
Mail
$28.00
Members save up to 42% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Training / Education
2008-08-26
Technical Paper / Journal Article
2011-09-13
Technical Paper / Journal Article
2013-01-09
Training / Education
2018-02-28