Passive Regeneration Response Characteristics of a DPF System Tenneco Incorporated

Format:

Conference/Event

Author/Creator:

Kotrba, Kotrba, author.

Contributor:

Bai, Ling

Gardner, Timothy P.

Yetkin, Argun

Conference Name:

SAE 2013 World Congress & Exhibition (2013-04-16 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2013

Summary:

This study investigates the passive regeneration behavior of diesel particulate filters (DPFS) with various PGM loadings under different engine operating conditions. Four wall-flow DPFs are used; one uncoated and three wash-coated with low, medium, and high PGM loadings, with and without an upstream diesel oxidation catalyst (DOC). DPFs with variable pre-soot loads are evaluated at two steady state temperatures (300°C and 400°C), as well as across three levels of transients based on the 13-mode ESC cycle. Passive regeneration rates are calculated based on pre and post soot gravimetric measurements along with accumulated soot mass rates for specified exhaust mass flow rates and temperatures. Results illustrate the effect of temperature, NO₂ content, and soot loading on passive regeneration without upstream DOCs or DPF wash coatings. Passive regeneration rates are quantified across several engine operating conditions, comparing sensitivities and providing calibration inputs for backpressure response modeling, as demonstrated with GT Power

Notes:

Vendor supplied data

Publisher Number:

2013-01-0520

Access Restriction:

Restricted for use by site license