A Methodology for the Fast Evaluation of the Effect of Ash Aging on the Diesel Particulate Filter Performance
Date Published: 2009-04-20
Paper Number:2009-01-0630
DOI: 10.4271/2009-01-0630
Citation:
Zarvalis, D., Lorentzou, S., and Konstandopoulos, A., "A Methodology for the Fast Evaluation of the Effect of Ash Aging on the Diesel Particulate Filter Performance," SAE Technical Paper 2009-01-0630, 2009, doi:10.4271/2009-01-0630.
Establishing a certain maintenance-free time period regarding modern diesel exhaust emission control systems is of major importance nowadays. One of the most serious problems Diesel Particulate Filter (DPF) manufacturers face concerning system's durability is the performance deterioration due to the filter aging because of the accumulation of the ash particles. The evaluation of the effect of the ash aging on the filter performance is a time and cost consuming task that slows down the process of manufacturing innovative filter structures and designs. In this work we present a methodology for producing filter samples aged by accumulating ash produced by the controlled pyrolysis of oil-fuel solutions. Such ash particles bear morphological (size) and compositional similarity to ash particles collected from engine aged DPFs. The ash particles obtained are compared to those from real engine operation. The ash-loaded samples are then evaluated with regard to their soot loading behavior, filtration efficiency and regeneration performance.
See papers presented at SAE World Congress & Exhibition, April 2009, Detroit, MI, USA, Session: Diesel Exhaust Emission Control - System Integration and Durability (Part 2 of 2)
Purchase more technical papers and save! With TechSelect,
you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.
Learn more >
