Particulate Traps Used in City-Buses in Switzerland

Mayer, Andreas; Evéquoz, R.; Wyser-Heusi, Max; Czerwiński, Jan; Matter, U.; Graf, Peter

doi:10.4271/2000-01-1927

Cited by 13 publications

(9 citation statements)

References 5 publications

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“…A CRT system was shown to reduce total DPM mass and number of solid diesel aerosol particle emissions by 90% [Mayer et al 2000;Zarling e t al. 2005;Shah et al 2007] and 99%, respectively [Mayer et al 2000]. Similarly, Zarling and coauthors [2005] showed a CRT system was capable of reducing EC emissions, on average, by 95%.…”

Section: Effects On Dpm Emissionsmentioning

confidence: 99%

“…38957 (2004); EC 1999/96/EC (2000; EC 595/2009EC 595/ (2009]. DPFs are commercially available in both retrofit and original equipment manufacturer (OEM) applications for both onroad and nonroad engines [Mayer et al 2000;Allansson et al 2002;Eberwein 2008;Mayer 1998;Mayer et al 1999;Hug 2008;Shah et al 2006] . Additionally, manufacturers are implementing them into the majority of new HD highway truck engines in the U.S. [Johnson 2009;Liu et al 2009b;Khalek et al 2009].…”

Section: Introductionmentioning

confidence: 99%

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Diesel aerosols and gases in underground mines: guide to exposure assessment and control.

Bugarski¹,

Cauda²,

Janisko³

et al. 2011

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Section: Effects On Dpm Emissionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Diesel aerosols and gases in underground mines: guide to exposure assessment and control.

Bugarski¹,

Cauda²,

Janisko³

et al. 2011

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“…Retrofit exhaustaftertreatment technologies have emerged in the early 1990s and are increasingly being utilized. Mayer et al (2000) were among the first, who have reported on the excellent efficiency of DPF (>99%) in mitigation of UFP emissions by urban buses. Other studies confirmed the high efficiency of DPFs (usually higher than 90%) in reduction of UFP emissions (Liu et al, 2012;Van Poppel and Lenaers, 2005;Biswas et al, 2009).…”

Section: Introductionmentioning

confidence: 96%

Ultrafine particle emissions by in-use diesel buses of various generations at low-load regimes

Tartakovsky¹,

Baibikov²,

Comte

et al. 2015

Atmospheric Environment

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“…Similarly, regeneration system performance is often evalu-*Corresponding author: Wolfson School of Mechanical and Manufacturing Engineering, Loughborough University, Loughborough, Leicestershire, LE11 3TU, UK. email: a.m.williams@ lboro.ac.uk ated by weighing a PM-loaded DPF before and after a regeneration event [15][16][17] with similar levels of accuracy required.…”

Section: Introductionmentioning

confidence: 99%

Correcting mass measurement of diesel particulate filters at non-ambient temperatures

Williams

Garner

2009

Proceedings of the Institution of Mechanical Engineers, Part D:

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• This is an article from the journal, Proceedings of the In- Abstract: Diesel particulate filters (DPFs) are becoming a widespread method for reducing the particulate matter (PM) emissions from both on-highway and off-highway automotive diesel engines. Mass measurements of DPFs are commonly used to determine rapidly both the amount of PM trapped by the filter and the amount regenerated (removed) by regeneration systems. To avoid issues with adsorption of atmospheric water the filters are often weighed at elevated temperatures. It is shown in this work that at elevated temperatures the filters weigh less than at lower temperatures as a direct result of the buoyant hot air within the filter substrate. This study shows that consideration of the buoyancy forces allows for correction of the mass measurement for the errors relating to the non-ambient temperature of the filter, allowing mass measurements at elevated temperatures while avoiding adsorption of atmospheric water on to the filter substrate and, therefore, improving the accuracy of mass-measurement-based studies of filtration and regeneration performance of DPFs. It is demonstrated that a filter with approximately 85 per cent overall porosity weighed at 150 uC in ambient temperatures will have an error of about 0.3 g/l (typically about 10 per cent of the trapped PM mass) in the mass measurement when not correcting for the temperature. By way of an example, this is shown to have potentially an important effect on the calculated trapped PM.

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Particulate Traps Used in City-Buses in Switzerland

Cited by 13 publications

References 5 publications

Diesel aerosols and gases in underground mines: guide to exposure assessment and control.

Diesel aerosols and gases in underground mines: guide to exposure assessment and control.

Ultrafine particle emissions by in-use diesel buses of various generations at low-load regimes

Correcting mass measurement of diesel particulate filters at non-ambient temperatures

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