Theoretical Assessment of Rigs for Accelerated Ash Accumulation in Diesel Particulate Filters KTH Royal Institute of Technology

Format:

Book

Conference/Event

Author/Creator:

Bernemyr, Hanna, author.

Contributor:

Ersson, Anders

Pavlou, Charis

Regali, Francesco

Conference Name:

SAE Powertrains, Fuels & Lubricants Meeting (2020-09-22 : Krakow, Poland)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2020

Summary:

Renewable fuels from different feedstocks can enable sustainable transport solutions with significant reduction in greenhouse gas emissions compared to conventional petroleum-derived fuels. Biodiesel and other renewable fuels are therefore becoming increasingly important both as neat as well as drop-in fuels especially for commercial vehicles. Emission control with the use of diesel particulate filters (DPF) will however persist as a much needed, but costly, part of the vehicle with high maintenance costs over the vehicle's lifetime. Combustion of renewable fuels yields soot and ash with different properties as well as higher amounts of ash compared to conventional fossil fuels, resulting in higher ash build-up and an altered ash deposition pattern in the DPF. The accumulation of ash causes an increase in pressure drop over the filter, increase the fuel consumption and call for premature DPF maintenance which is a costly and time consuming process. Prolonging the maintenance interval of the DPF for heavy duty trucks, having a demand for high up-time, is highly desirable. Hence, understanding the mechanisms of ash formation and build-up in the DPF when using renewable fuels is of uttermost importance. To cut down the cost and duration of field testing, as well as achieving a robust method that is relevant for real driving, studies using accelerated ash accumulation are called for. This paper presents the findings of a literature review of accelerated ash accumulation methods with the focus on how different ash properties are influenced by use of accelerated ash accumulation. The paper summarizes the methods for accelerated ash accumulation, gives an overview of the experimental set-ups found in literature and discusses the different methods' applicability to study different aspects of the interactions between the DPF and the accumulated ash

Notes:

Vendor supplied data

Publisher Number:

2020-01-2175

Access Restriction:

Restricted for use by site license