Diesel Aftertreatment

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Course Outline

  • Air pollution overview
    • Atmospheric chemistry
    • Health and environmental consequences
  • Emissions regulations and testing
  • Diesel engine emissions: in-cylinder formation
  • Diesel aftertreatment overview
    • System functions
    • Catalytic converter design basics
    • Performance and control
    • System architectures
  • Diesel Particulate Filter (DPF)
    • Functions and design details
    • Component performance and control
    • Failure Mechanisms
  • Diesel Oxidation Catalyst (DOC)
    • Functions and design details
    • Component performance and control
    • Failure Mechanisms
  • Selective Catalytic Reduction (SCR) system
    • Functions and design details
    • NH3 (DEF) introduction system
    • Ammonia slip catalyst (ASC)
    • System performance and control
    • Failure Mechanisms
  • Lean NOx Trap (LNT)
    • Functions and design details
    • Component performance and control
    • Failure Mechanisms
  • Diesel aftertreatment system architectures
    • Passenger car
    • Light truck
    • Heavy-duty truck
    • Off-highway equipment

Instructors

Michael Andrie

Michael Andrie is a program director and a researcher at the Engine Research Center (ERC) at the University of Wisconsin-Madison. He has more than 35 years of experience in engine development. Andrie began his engineering career at John Deere and then spent 17 years at Cummins Engine Company, where he managed and developed engines for the automotive, industrial, and marine markets. He joined the University of Wisconsin in 2007 and is active in research, mentoring, consulting, and continuing engineering education. Andrie holds several patents and is author on numerous publications. He also serves as the program manager for the over 35 members of the “Direct-injection Engine Research Consortium” (DERC) and the Biennial ERC symposium. Andrie holds a bachelor’s and a master’s degree in Agricultural and Mechanical Engineering from the University of Minnesota.

Thomas Harris

Tom Harris, Technical Specialist, Tenneco, has a B.S. in Chemistry from Butler University, M.S. and Ph.D. degrees in Metallurgy from the Massachusetts Institute of Technology, and an M.E. in Engine Systems from the University of Wisconsin. He has over 20 years of industrial experience, including 10 years with John Deere Power Systems, where he focused on aftertreatment design and development. He joined Tenneco in 2016; currently, he is a member of Global System Engineering, where he is involved in the modeling and testing of future aftertreatment and thermal management technologies for commercial trucks and off-highway equipment. He holds over 10 patents and has over 20 peer-reviewed publications.

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Program Director

Michael Andrie

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