Particulate Emissions PN vs. PM and GDI

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Course Overview

With current, and potential future, regulations on particulate emissions from internal combustion engines becoming more stringent, deeper knowledge into reduction of these emissions is sought after.  Upon completion of this course, learners will:

  • Have a foundation in particulate emissions and why they matter.
  • Gain a basis for particulate matter (PM) composition, physical properties, measurement techniques and common terminology.
  • Be armed with real life, current research results that demonstrate emission results for gasoline direct injection engines.
  • Be able to distinguish between particle size and particle number for particulate emissions and identify measurement techniques for each.
  • Gain a basis for how various emission metrics relate to one another along with benefits/pitfalls to relationship methodology.

Ultimately, this course will arm learners with critical knowledge of internal combustion particulate emission measurement and mitigation techniques.

Who Should Attend?

Those wanting to gain deeper knowledge on particulate emissions associated with internal combustion engines. Learners seeking a cutting-edge perspective on current research and deeper look at the metrics associated with particulate matter reduction.  The content in this course appeals to emissions engineers, engineering students, ICE enthusiasts, ICE researchers and chemists alike.

Course Outline

Module 1 - Particulate Emissions & Measurement Techniques part 1

Module 2 - Particulate Emissions & Measurement Techniques part 2

Module 3 - Particle Sensors Used On-Board Vehicles

Module 4 - Relationship Among Various Particle Characterization Metrics

Module 5 - Particle Emissions from Gasoline Direct Inject Engines

Module 6 - Particle Emissions During Engine Start-Up

Module 7 - Effect of EGR on Particle Emissions from a GDI Engine

Module 8 - The Role of High Efficiency Exhaust Particle Filters in Emissions Reduction-A Look into the Future


Imad Khalek

Dr. Khalek is a world expert in the area of particle emissions from combustion sources and exhaust particle filters for diesel, gasoline and natural gas engines. He has a strong educational training and substantial research & publications record in the field of engine emissions. He has a BS in Aerospace Engineering and MS/PhD in Mechanical Engineering all from the University of Minnesota. In 1999, he joined Southwest Research Institute (SwRI) as Research Engineer and he is currently Sr. Program Manager overseeing particle emissions activities at SwRI. He is the founder of the Particle Science & Technology (PST) Laboratory that recently became the only ISO 17025 A2LA accredited particle instruments calibration laboratory in the USA. Dr. Khalek interest includes engine, aftertreatment, battery, brake and tires emissions, particle instrument development and calibration, spark-plug sized sensors, and recently masks R&D.

Vinay Premnath

Vinay Premnath is a mechanical engineer with a strong background in particle science and technology, fluid mechanics & heat transfer. He has experience in automotive emissions research and development, project management, data acquisition and analysis, design of experiments, and aerosol particle instrumentation. As a technical leader, he focuses on diverse research areas involving particle science & technology. Research topics include battery thermal runaway emissions, state-of-the-art sensors used for OBD and other applications, ISO-compliant calibration of particle instrumentation, design & development of aerosol instrumentation, and characterization & control of emissions from various combustion platforms.

Upcoming dates (1)

Program Director

Blake Suhre

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