The exhaust filtration analysis system (EFA) developed at the University of Wisconsin–Madison was used to perform microscale filtration experiments on cordierite filter samples using particulate matter (PM) generated by a spark ignition direct injection (SIDI) engine fueled with gasoline. A scanning mobility particle sizer (SMPS) was used to characterize running conditions with four distinct particle size distributions (PSDs). The distributions selected differed in the relative number of accumulation versus nucleation mode particles. The SMPS and an engine exhaust particle sizer (EEPS) were used to simultaneously measure the PSD downstream of the EFA and the real-time particulate emissions from the SIDI engine to determine the evolution of filtration efficiency (FE) during filter loading. Cordierite filter samples with properties representative of diesel particulate filters (DPFs) were loaded with PM from the different engine operating conditions. The results were compared to understand the impact of PSD on filtration performance as well as the role of accumulation mode particles on the diffusion capture of PM. The most penetrating particle size (MPPS) was observed to decrease as a result of particle deposition within the filter substrate. In the absence of a soot cake, the penetration of particles smaller than 70 nm was seen to gradually increase with time, potentially due to increased velocities in the filter as flow area reduces during filter loading, or due to decreasing wall area for capture of particles by diffusion. Particle re-entrainment was not observed for any of the operating conditions.

References

References
1.
Chan
,
T. W.
,
Meloche
,
E.
,
Kubsh
,
J.
,
Rosenblatt
,
D.
,
Brezny
,
R.
, and
Rideout
,
G.
,
2012
, “
Evaluation of a Gasoline Particulate Filter to Reduce Particle Emissions From a Gasoline Direct Injection Vehicle
,”
SAE Int. J. Fuels Lubr.
,
5
(
3
), pp.
1277
1290
.10.4271/2012-01-1727
2.
Zhao
,
F.
,
Lai
,
M. C.
, and
Harrington
,
D. L.
,
1999
, “
Automotive Spark-Ignited Direct-Injection Gasoline Engines
,”
Prog. Energy Combust. Sci.
,
25
(
5
), pp.
437
562
.10.1016/S0360-1285(99)00004-0
3.
Hall
,
D. E.
, and
Dickens
,
C. J.
,
1999
, “
Measurement of the Number and Size Distribution of Particles Emitted From a Gasoline Direct Injection Vehicle
,”
SAE
Technical Paper No. 1999-01-3530.10.4271/1999-01-3530
4.
Boris
,
D. S.
,
Fansler
,
T. D.
,
Drake
,
M. C.
, and
Sick
,
V.
,
2005
, “
High-Speed Imaging of OH* and Soot Temperature and Concentration in a Stratified-Charge Direct-Injection Gasoline Engine
,”
Proc. Combust. Inst.
,
30
(
2
), pp.
2657
2665
.10.1016/j.proci.2004.08.021
5.
Graskow
,
B. R.
,
Kittelson
,
D. B.
,
Ahmadi
,
M. R.
, and
Morris
,
J. E.
,
1999
, “
Exhaust Particulate Emissions From a Direct Injection Spark Ignition Engine
,”
SAE
Technical Paper No. 1999-01-1145.10.4271/1999-01-1145
6.
Ulrich
,
A.
,
Wichser
,
A.
,
Hess
,
A.
,
Heeb
,
N.
,
Emmenegger
,
L.
,
Czerwinski
,
J.
,
Kasper
,
M.
,
Mooney
,
J.
, and
Mayer
,
A.
,
2012
, “
Particle and Metal Emissions of Diesel and Gasoline Engines—Are Particle Filters Appropriate Measures?
,”
16th Conference on Combustion Generated Nanoparticles
, Zurich, Switzerland, June 24–27.
7.
Peters
,
A.
,
Wichmann
,
H.
,
Tuch
,
T.
,
Heinrich
,
J.
, and
Heyder
,
J.
,
1997
, “
Respiratory Effects are Associated With the Number of Ultrafine Particles
,”
Am. J. Respir. Crit. Care Med.
,
155
(
4
), pp.
1376
1383
.10.1164/ajrccm.155.4.9105082
8.
Ibald-Mulli
,
A.
,
Wichmann
,
H.
,
Kreyling
,
W.
, and
Peters
,
A.
,
2002
, “
Epidemiological Evidence on Health Effects of Ultrafine Particles
,”
J. Aerosol Med.
,
15
(
2
), pp.
189
201
.10.1089/089426802320282310
9.
Valavanidis
,
A.
,
Fiotakis
,
K.
, and
Vlachogianni
,
T.
,
2008
, “
Airborne Particulate Matter and Human Health: Toxicological Assessment and Importance of Size and Composition of Particles for Oxidative Damage and Carcinogenic Mechanisms
,”
J. Environ. Sci. Health Part C: Environ. Carcinog. Ecotoxicol. Rev.
,
26
(
4
), pp.
339
362
.10.1080/10590500802494538
10.
Whitaker
,
P.
,
Kapus
,
P.
,
Ogris
,
M.
, and
Hollerer
,
P.
,
2011
, “
Measures to Reduce Particulate Emissions From Gasoline DI Engines
,”
SAE Int. J. Engines
,
4
(
1
), pp.
1498
1512
.10.4271/2011-01-1219
11.
Piock
,
W.
,
Hoffmann
,
G.
,
Berndorfer
,
A.
,
Salemi
,
P.
, and
Fusshoeller
,
B.
,
2011
, “
Strategies Towards Meeting Future Particulate Matter Emission Requirements in Homogeneous Gasoline Direct Injection Engines
,”
SAE Int. J. Engines
,
4
(
1
), pp.
1455
1468
.10.4271/2011-01-1212
12.
Saito
,
C.
,
Nakatani
,
T.
,
Miyairi
,
Y.
,
Yuuki
,
K.
,
Makino
,
M.
,
Kurachi
,
H.
,
Heuss
,
W.
,
Kuki
,
T.
,
Furuta
,
Y.
,
Kattouah
,
P.
, and
Vogt
,
C.-D.
,
2011
, “
New Particulate Filter Concept to Reduce Particle Number Emissions
,”
SAE
Technical Paper No. 2011-01-0814.10.4271/2011-01-0814
13.
Johnson
,
T.
,
2013
, “
Vehicular Emissions in Review
,”
SAE Int. J. Engines
,
6
(
2
), pp.
699
715
.10.4271/2013-01-0538
14.
Ohara
,
E.
,
Mizuno
,
Y.
,
Miyairi
,
Y.
,
Mizutani
,
T.
,
Yuuki
,
K.
,
Noguchi
,
Y.
,
Hiramatsu
,
T.
,
Makino
,
M.
,
Takahashi
,
A.
,
Sakai
,
H.
,
Tanaka
,
M.
,
Martin
,
A.
,
Fujii
,
S.
,
Busch
,
P.
,
Toyoshima
,
T.
,
Ito
,
T.
,
Lappas
,
I.
, and
Vogt
,
C. D.
,
2007
, “
Filtration Behavior of Diesel Particulate Filters (1)
,”
SAE
Technical Paper No. 2007-01-0921.10.4271/2007-01-0921
15.
Viswanathan
,
S.
,
Sakai
,
S.
, and
Rothamer
,
D.
,
2014
, “
Design and Evaluation on an Exhaust Filtration Analysis (EFA) System
,”
SAE
Technical Paper No. 2014-01-1558.10.4271/2014-01-1558
16.
Tien
,
C.
,
2012
,
Principles of Filtration
,
Elsevier Science Ltd.
, Oxford, UK.
17.
Swanson
,
J.
,
Watts
,
W.
,
Kittelson
,
D.
,
Newman
,
R.
, and
Ziebarth
,
R.
,
2013
, “
Filtration Efficiency and Pressure Drop of Miniature Diesel Particulate Filters
,”
Aerosol Sci. Technol.
,
47
(
4
), pp.
452
461
.10.1080/02786826.2012.763087
18.
Ohno
,
K.
,
Taoka
,
N.
,
Furuta
,
T.
,
Kudo
,
A.
, and
Komori
,
T.
,
2002
, “
Characterization of High Porosity SiC-DPF
,”
SAE
Technical Paper No. 2002-01-0325.10.4271/2002-01-0325
19.
Konstandopoulos
,
A. G.
,
Skaperdas
,
E.
, and
Masoudi
,
M.
,
2002
, “
Microstructural Properties of Soot Deposits in Diesel Particulate Traps
,”
SAE
Technical Paper No. 2002-01-1015.10.4271/2002-01-1015
20.
Tien
,
C.
, and
Ramarao
,
B. V.
,
2007
,
Granular Filtration of Aerosols and Hydrosols
,
Elsevier Science Ltd.
,
Oxford, UK
.
21.
Keir
,
G.
,
Jegatheesan
,
V.
, and
Vigneswaran
,
S.
,
2009
, “
Deep Bed Filtration: Modeling Theory and Practice
,”
Water and Wastewater Treatment Technologies
,
V.
Saravanamuthu
, ed.,
Eolss Publishers
,
Oxford, UK
, pp.
263
307
.
22.
Bai
,
R.
, and
Mackie
,
R. I.
,
1995
, “
Modelling the Transition Between Deposition Modes in Deep Bed Filtration
,”
Water Res.
,
29
(
11
), pp.
2601
2604
.10.1016/0043-1354(95)00078-Y
23.
Ives
,
K. J.
,
1969
, “
Theory of Filtration
,” International Water Supply Congress and Exhibition, Vienna, Austria, Sept. 1–5.
24.
Wang
,
C. S.
,
Beizaie
,
M.
, and
Tien
,
C.
,
1977
, “
Deposition of Solid Particles on a Collector: Formulation of a New Theory
,”
AIChE
,
23
(
6
), pp.
879
889
.10.1002/aic.690230615
25.
Mackie
,
R. I.
,
Horner
,
R. M. W.
, and
Jarvis
,
R. J.
,
1989
, “
Dynamic Modeling of Deep-Bed Filtration
,”
AIChE
,
33
(
11
), pp.
1761
1775
.10.1002/aic.690331102
26.
Tandon
,
P.
,
Heibel
,
A.
,
Whitmore
,
J.
,
Kekre
,
N.
, and
Chithrapragada
,
K.
,
2010
, “
Measurement and Prediction of Filtration Efficiency Evolution of Soot Loaded Diesel Particulate Filter
,”
Chem. Eng. Sci.
,
65
(
16
), pp.
4751
4760
.10.1016/j.ces.2010.05.020
27.
Hinds
,
W. C.
,
1999
,
Aerosol Technology: Properties, Behavior, and Measurement of Airborne Particles
,
Wiley
,
New York
.
28.
Tien
,
C.
, and
Payatakes
,
A. C.
,
1979
, “
Advances in Deep Bed Filtration
,”
AIChE
,
25
(
5
), pp.
737
759
.10.1002/aic.690250502
29.
Bai
,
R.
, and
Tien
,
C.
,
1997
, “
Particle Detachment in Deep Bed Filtration
,”
J. Colloid Interface Sci.
,
186
(
2
), pp.
307
317
.10.1006/jcis.1996.4663
30.
Gitis
,
V.
,
Rubinstein
,
I.
,
Livshits
,
M.
, and
Ziskind
,
G.
,
2010
, “
Deep-Bed Filtration Model With Multistage Deposition Kinetics
,”
Chem. Eng. J.
,
163
(
1–2
), pp.
78
85
.10.1016/j.cej.2010.07.044
31.
Darby
,
L. J.
, and
Lawler
,
D. F.
,
1990
, “
Ripening in Depth Filtration: Effect of Particle Size on Removal and Head Loss
,”
Environ. Sci. Technol.
,
24
(
7
), pp.
1069
1079
.10.1021/es00077a018
32.
Mackie
,
R. I.
, and
Bai
,
R.
,
1992
, “
Suspended Particle Size Distribution and the Performance of Deep Bed Filters
,”
Water Res.
,
26
(
12
), pp.
1571
1575
.10.1016/0043-1354(92)90155-W
33.
Vigneswaran
,
S.
, and
Aim
,
B. R.
,
1985
, “
The Influence of Suspended Particle Size Distribution in Deep-Bed Filtration
,”
AIChE
,
31
(
12
), pp.
321
324
.10.1002/aic.690310221
34.
Vigneswaran
,
S.
,
Chang
,
J. S.
, and
Janssens
,
J. G.
,
1990
, “
Experimental Investigation of Size Distribution of Suspended Particles in Granular Bed Filtration
,”
Water Res.
,
24
(
7
), pp.
927
930
.10.1016/0043-1354(90)90145-V
35.
Tobiason
,
J. E.
,
Johnson
,
G. S.
, and
Westerhoff
,
P. K.
,
1990
, “
Particle Size and Filter Performance: Model Studies
,”
Environmental Engineering: Proceeding of the 1990 Specialty Conference
, Arlington, VA, July 8–11, ASCE, New York, pp.
733
739
.
36.
Chang
,
J. S.
,
Vigneswaran
,
S.
, and
Kandasamy
,
L. J.
,
2008
, “
Effect of Pore Size and Particle Size Distribution on Granular Bed Filtration and Micro-Filtration
,”
Sep. Sci. Technol.
,
43
(
7
), pp.
1771
1784
.10.1080/01496390801974605
37.
Konstandopoulos
,
A.
, and
Johnson
,
J.
,
1989
, “
Wall-Flow Diesel Particulate Filters—Their Pressure Drop and Collection Efficiency
,”
SAE
Technical Paper No. 890405.10.4271/890405
38.
Lee
,
K. W.
,
1981
, “
Maximum Penetration of Aerosol Particles in Granular Bed Filters
,”
J. Aerosol Sci.
,
12
(
1
), pp.
79
87
.10.1016/0021-8502(81)90014-8
39.
Sakai
,
S.
,
Hageman
,
M.
, and
Rothamer
,
D.
,
2013
, “
Effect of Equivalence Ratio on the Particulate Emissions From a Spark-Ignited, Direct-Injected Gasoline Engine
,”
SAE
Technical Paper No. 2013-01-1560.10.4271/2013-01-1560
40.
Farron
,
C.
,
Matthias
,
N.
,
Foster
,
D.
,
Andrie
,
M.
,
Krieger
,
R.
,
Najt
,
P.
,
Narayanaswamy
,
K.
,
Solomon
,
A.
, and
Zelenyuk
,
A.
,
2011
, “
Particulate Characteristics for Varying Engine Operation in a Gasoline Spark Ignited, Direct Injection Engine
,”
SAE
Technical Paper No. 2011-01-1220.10.4271/2011-01-1220
41.
Gatowski
,
J.
,
Balles
,
E.
,
Chun
,
K.
,
Nelson
,
F.
,
Ekchian
,
J.
, and
Heywood
,
J.
,
1984
, “
Heat Release Analysis of Engine Pressure Data
,”
SAE
Technical Paper No. 841359.10.4271/841359
42.
Yapaulo
,
R.
,
2009
,
Micro-Scale Investigation of Filtration Velocity and Particulate Matter Characteristics Effects on Diesel Particulate Filter Wall Loading
,
University of Wisconsin–Madison
,
Madison, WI
.
43.
Wirojsakunchai
,
E.
,
Kolodziej
,
C.
,
Yapaulo
,
R.
, and
Foster
,
D.
,
2008
, “
Development of the Diesel Exhaust Filtration Analysis System (DEFA)
,”
SAE
Technical Paper No. 2008-01-0486.10.4271/2008-01-0486
44.
Rakovec
,
N.
,
Viswanathan
,
S.
, and
Foster
,
D. E.
,
2011
, “
Micro-Scale Study of DPF Permeability as a Function of PM Loading
,”
SAE
Technical Paper No. 2011-01-0815.10.4271/2011-01-0815
45.
Stewart
,
M.
,
2013
, “
Fuel-Neutral Studies of Particulate Matter Transport Emissions
,” Pacific Northwest National Laboratory, Richland, WA, PNNL Project No. ACE056.
46.
Viswanathan
,
S.
,
Rakovec
,
N.
, and
Foster
,
D. E.
,
2012
, “
Microscale Study of Ash Accumulation Process in DPF Walls Using the Diesel Exhaust Filtration Analysis (DEFA) System
,”
ASME
Paper No. ICEF2012-92104.10.1115/ICEF2012-92104
47.
Giesche
,
H.
,
2006
, “
Mercury Porosimetry: A General (Practical) Overview
,”
Part. Part. Syst. Charact.
,
23
(
1
), pp.
9
19
.10.1002/ppsc.200601009
48.
Bergmann
,
M.
,
Scheer
,
V.
,
Vogt
,
R.
, and
Benter
,
T.
,
2007
, “
Comparison of the Performance of Real-Time PM Mass and Number Instrumentation for Vehicle Exhaust Measurements
,”
SAE
Technical Paper No. 2007-24-0116.10.4271/2007-24-0116
49.
Symonds
,
J. P. R.
,
Reavell
,
K. S. J.
,
Olfert
,
J. S.
,
Campbell
,
B. W.
, and
Swift
,
S. J.
,
2007
, “
Diesel Soot Mass Calculation in Real-Time With a Differential Mobility Spectrometer
,”
J. Aerosol Sci.
,
38
(
1
), pp.
52
68
.10.1016/j.jaerosci.2006.10.001
50.
Harris
,
S. J.
, and
Maricq
,
M. M.
,
2001
, “
Signature Size Distributions for Diesel and Gasoline Engine Exhaust Particulate Matter
,”
J. Aerosol Sci.
,
32
(
6
), pp.
749
764
.10.1016/S0021-8502(00)00111-7
51.
Maricq
,
M. M.
,
2006
, “
On the Electric Charge of Motor Vehicle Exhaust Particles
,”
J. Aerosol Sci.
,
37
(
7
), pp.
858
874
.10.1016/j.jaerosci.2005.08.003
52.
Lee
,
K. W.
,
Reed
,
L. D.
, and
Gieseke
,
J. A.
,
1978
, “
Pressure Drop Across Packed Beds in the Low Knudsen Number Regime
,”
J. Aerosol Sci.
,
9
(
6
), pp.
557
565
.10.1016/0021-8502(78)90021-6
53.
Jegatheesan
,
V.
, and
Vigneswaran
,
S.
,
1997
, “
The Effect of Concentration on the Early Stages of Deep Bed Filtration of Sub Micron Particles
,”
Water Res.
,
31
(
11
), pp.
2910
2913
.10.1016/S0043-1354(96)00392-2
54.
Amirtharajah
,
A.
,
1988
, “
Some Theoretical and Conceptual Views of Filtration
,”
J. Am. Water Works Assoc.
,
80
, pp.
34
46
.10.2307/41292090
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