Implications of Hydrated Ash on Filtration Efficiency and Performance of Particulate Filters (DPF, GPF, and SCRF)—a Perspective
Abstract Particulate filters are used to meet current and future emission-control standards for particle mass and particle number requirements. However, with vehicle operation, non-combustible material (termed as “ash”) collects in the filter leading to an increase in ∆P, lower fuel e...
| Main Authors: | , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Springer Science and Business Media LLC
2022
|
| Online Access: | https://hdl.handle.net/1721.1/142788.2 |
| _version_ | 1811093227446468608 |
|---|---|
| author | Bagi, Sujay Kamp, Carl Justin |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Bagi, Sujay Kamp, Carl Justin |
| author_sort | Bagi, Sujay |
| collection | MIT |
| description | Abstract
Particulate filters are used to meet current and future emission-control standards for particle mass and particle number requirements. However, with vehicle operation, non-combustible material (termed as “ash”) collects in the filter leading to an increase in ∆P, lower fuel economy, reduced soot storage space, and lower conversion rates for exhaust gases such as HC, NO, and NO2. In most cases, CaSO4 originating from detergent formulations in the lubricant forms the major component of inorganic ash; CaSO4 undergoes hydration cycles forming gypsum, along with semi-/hemi-hydrates through a series of transformations that are a function of temperature, time, and humidity. The exact nature of these transformations and the interaction of hydrated species with the filter substrate are poorly understood. The current work highlights the recent serendipitous discovery of hydrated ash structures and their deleterious effects on the filter and informs the automotive emission control community about the strategies for effective management of the filter. |
| first_indexed | 2024-09-23T15:41:42Z |
| format | Article |
| id | mit-1721.1/142788.2 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T15:41:42Z |
| publishDate | 2022 |
| publisher | Springer Science and Business Media LLC |
| record_format | dspace |
| spelling | mit-1721.1/142788.22024-03-22T17:43:14Z Implications of Hydrated Ash on Filtration Efficiency and Performance of Particulate Filters (DPF, GPF, and SCRF)—a Perspective Bagi, Sujay Kamp, Carl Justin Massachusetts Institute of Technology. Department of Mechanical Engineering Abstract Particulate filters are used to meet current and future emission-control standards for particle mass and particle number requirements. However, with vehicle operation, non-combustible material (termed as “ash”) collects in the filter leading to an increase in ∆P, lower fuel economy, reduced soot storage space, and lower conversion rates for exhaust gases such as HC, NO, and NO2. In most cases, CaSO4 originating from detergent formulations in the lubricant forms the major component of inorganic ash; CaSO4 undergoes hydration cycles forming gypsum, along with semi-/hemi-hydrates through a series of transformations that are a function of temperature, time, and humidity. The exact nature of these transformations and the interaction of hydrated species with the filter substrate are poorly understood. The current work highlights the recent serendipitous discovery of hydrated ash structures and their deleterious effects on the filter and informs the automotive emission control community about the strategies for effective management of the filter. 2022-05-27T17:15:07Z 2022-05-27T11:53:16Z 2022-05-27T17:15:07Z 2022-04 2022-02 2022-05-27T03:33:49Z Article http://purl.org/eprint/type/JournalArticle 2199-3629 2199-3637 https://hdl.handle.net/1721.1/142788.2 Bagi, Sujay and Kamp, Carl J. 2022. "Implications of Hydrated Ash on Filtration Efficiency and Performance of Particulate Filters (DPF, GPF, and SCRF)—a Perspective." en https://doi.org/10.1007/s40825-022-00210-z Emission Control Science and Technology Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The Author(s), under exclusive licence to Springer Nature Switzerland AG application/octet-stream Springer Science and Business Media LLC Springer International Publishing |
| spellingShingle | Bagi, Sujay Kamp, Carl Justin Implications of Hydrated Ash on Filtration Efficiency and Performance of Particulate Filters (DPF, GPF, and SCRF)—a Perspective |
| title | Implications of Hydrated Ash on Filtration Efficiency and Performance of Particulate Filters (DPF, GPF, and SCRF)—a Perspective |
| title_full | Implications of Hydrated Ash on Filtration Efficiency and Performance of Particulate Filters (DPF, GPF, and SCRF)—a Perspective |
| title_fullStr | Implications of Hydrated Ash on Filtration Efficiency and Performance of Particulate Filters (DPF, GPF, and SCRF)—a Perspective |
| title_full_unstemmed | Implications of Hydrated Ash on Filtration Efficiency and Performance of Particulate Filters (DPF, GPF, and SCRF)—a Perspective |
| title_short | Implications of Hydrated Ash on Filtration Efficiency and Performance of Particulate Filters (DPF, GPF, and SCRF)—a Perspective |
| title_sort | implications of hydrated ash on filtration efficiency and performance of particulate filters dpf gpf and scrf a perspective |
| url | https://hdl.handle.net/1721.1/142788.2 |
| work_keys_str_mv | AT bagisujay implicationsofhydratedashonfiltrationefficiencyandperformanceofparticulatefiltersdpfgpfandscrfaperspective AT kampcarljustin implicationsofhydratedashonfiltrationefficiencyandperformanceofparticulatefiltersdpfgpfandscrfaperspective |