Advanced Diesel Particulate Filtration Systems
Duration: 2 Days
September 11-12, 2013 (8:30 a.m. - 4:30 p.m.
) - Shanghai, China
October 2-3, 2013 (8:30 a.m. - 4:30 p.m.
) - Troy, Michigan
Hotel & Travel Information
As diesel emissions regulations have become more and more stringent, diesel particulate filters (DPF) have become possibly the most important and complex diesel aftertreatment device. This seminar covers many DPF-related topics using fundamentals from various branches of applied sciences such as porous media, filtration and materials sciences and will provide the student with both a theoretical as well as an applications-oriented approach to enhance the design and reliability of aftertreatment platforms. Structure, geometry, composition, performance, applications and optimizations of DPFs are some of the main topics covered in this advanced level seminar. Computer simulation techniques for analysis and optimization of DPF performance are also demonstrated.
By attending this seminar, you will be able to:
- Discuss fundamental, moderate and advanced topics on DPF structure, geometry, composition, performance, applications and optimizations
- Formulate porosity, permeability, inertial loss coefficient, flow resistance descriptors, different particulate transport modes (diffusional, interceptive), etc. to develop models for predicting backpressure of DPF
- Recognize different modes of particulate filtration regimes in DPF
- Select, design, utilize and optimize DPF for various light duty and heavy duty aftertreatment applications
- Predict, via modeling and simulations, various important DPF performance features (backpressure, peak regeneration temperature, etc.) as well as to analyze their failure modes and thus enhance the reliability of diesel exhaust aftertreatment platform designs
Who Should Attend
This seminar is designed for engineers, scientists, investigators and consultants involved in researching, developing, applications, designing or optimizing diesel exhaust aftertreatment components and systems. Individuals from technical and regulatory institutions as well as individuals from OEMs, suppliers, emissions service companies, research facilities and universities will gain modern knowledge of diesel filter performance.
Students should have some technical insight into the performance of exhaust emission aftertreatment. Attendees with science or technology background (mechanical/chemical engineering, chemistry, physics) will benefit substantially from this seminar.
Porous Media Basics for Diesel Particulate Filters
Filtration Concepts for Diesel Particulate Filters
- Pore space and structure definitions (definitions of relevant length scales,
derivation of "pore metrics" such as correlation lengths, lineal path
- Simplified representations of structures (unit cell models based on
granular, cylindrical and composite collectors.)
- Flow resistance descriptors (Darcy permeability, Forchheimer
coefficient, inertial loss coefficient as functions of wall micro-geometry, cell
density, wall thickness, plug length)
Diesel Filter Types: Materials and Configurations in Practice
- Particle transport and deposition phenomena -- Condensed vs. vapor phases in diesel exhaust; Diesel fractal soot aggregate basics; Diffusional transport; Thermophoretic transport; Direct interception mechanism; Inertial transport mechanism; Other phenomena (electrical effects, sticking, entrainment by exhaust flow)
- Continuum filtration theory -- Deep-bed filtration regime; Cake filtration regime reconstruction of filter media
- True-to-the-geometry representations (digital reconstruction of filter
media, micro-flow simulation with Lattice-based techniques and discrete particle
dynamics. Examples applied to granular ceramic extruded filters, sintered metal
filters, foam filters and fibrous textile filters.)
- Materials aspects
- Ceramics -- Oxide based: Cordierite, Mullite, other (Tialite/Aluminum Titanate, etc.); Non-oxide based: Recrystalized Silicon Carbide (R-SiC), Siliconized Silicon Carbide (Si-SiC), Silicon Nitride
- Metallics (high temperature alloys) -- Sintered grains and fibers
- Wall-flow honeycombs (square, triangular, symmetric vs. asymmetric channels.)
- Pleated, foiled (sheet-based) designs
- Fibrous, textile cartridges
- Foam-based designs
- Flow-through particulate collectors
Applications, Performance Optimization and Modeling of Diesel Particulate Filters
- Filter backpressure/particulate loading -- Porosity, permeability, pore structure issues; Role of catalyst coatings; Filter size effects (length, diameter, cell density, wall thickness); Microstructure of soot deposits (physical and chemical properties); Soot deposition conditions and role on soot structure: Steady state, transients, cycles; Modeling aspects
- Filter Regeneration
- Soot reactivity and structure -- Oxidation mechanisms (thermal, catalytic, NO2); Kinetic descriptions
- Types of regeneration technologies -- Raising exhaust temperature by post-injection and/or by exhaust-port injection in combination with DOxC; Fuel borne additive-assisted regeneration; Catalyst coating-assisted regeneration; Reactive species-assisted regeneration (NO2-assisted, non-thermal plasma, etc.)
- Simulation Techniques for Diesel Particulate Filters -- Brief history of DPF performance modeling; Backpressure -- Theory, insights and lessons; Modeling: demonstrations, validations; Regeneration -- Theory, insights and lessons; Modeling: demonstrations, validations
- Ash Effects -- Ash production, transport, deposition and thermal history; Ash effects on filter thermal management, catalyst activities, and filter sizing
Instructor(s): Athanasios Konstandopoulos and Mansour Masoudi
Dr. Athanasios G. Konstandopoulos, recipient of the 2006 Descartes Laureate, is the founder and head of the Aerosol and Particle Technology Laboratory (APTL), a well-known European diesel emission control laboratory at the Chemical Process Engineering Research Institute (CPERI/CERTH) in Thessaloniki, Greece. In 2006, he was elected as Director of CPERI and member of the Board of Directors of the National Centre for Research and Technology-Hellas (CERTH). Since 2006, he has also been a member of the faculty of Chemical Engineering at Aristotle University in Thessaloniki. Dr. Konstandopoulos is a specialist in combustion aerosols and nanoparticles and he has extensive research and engineering consulting experience in the design, modeling, and testing of diesel particulate filter systems and monolithic reactors. Dr. Konstandopoulos, an SAE Fellow, has authored more than 70 scientific and technical papers and is a frequent invited speaker at conferences throughout the U.S. and Europe. His educational accomplishments include a Diploma in Mechanical Engineering from Aristotle University of Thessaloniki, an M.S. in Mechanical Engineering from Michigan Technological University and an M.S., MPhil and a Ph.D. in Chemical Engineering from Yale University.
Dr. Mansour Masoudi is Manager, Advanced Powertrain Technology, at Paccar Technical Center. Throughout his career, he has carried out various engineering responsibilities working on gasoline and Diesel emission control components and systems, spray injection (fuel, DEF, ...), thermodynamic processes, engine testing, simulation and math modeling of emission reduction components and energy systems. He formerly held product Research and Development responsibilities at Corning Inc., Delphi Corp. and at Bosch Diesel Systems. Dr. Masoudi holds a M.S. in Mechanical Engineering, M.S. in Management and a Ph.D. in Mechanical and Aerospace Engineering.
; SAE Members: $1055.00 - $1185.00
You must complete all course contact hours and successfully pass the learning assessment to obtain CEUs.
"Excellent coverage of an emerging technology by a real expert in the area."
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