Completed Projects









 

 
Engine Exhaust Speciation Laboratory

Researchers:
Stani Bohac
Dennis Assanis
Will Northrop

Sponsor:
General Motors
Michigan Economic Development Corp (MEDC)
Eaton Corporation

Abstract: Exhaust hydrocarbon speciation provides novel insight into the complex mixing, ignition and combustion processes of advanced combustion and aftertreatment strategies being developed to reduce the consumption of conventional fuels, enable and improve combustion of alternative fuels and reduce tailpipe emissions. A methodology for sampling and analyzing volatile and semi-volatile hydrocarbons ranging from C1-C30 from fuels, undiluted exhaust gas and particulate matter has been developed in the UM speciation laboratory.

Research Accomplishments:
The UM hydrocarbon speciation laboratory is being used or has provided novel perspective and greater insight in the following internal combustion studies:

  1. Effect of alternative fuels and fuel properties on low temperature premixed diesel combustion
  2. Low temperature premixed diesel combustion and diesel oxidation catalysts
  3. Behavior of laser induced fluorescence tracers in fuel systems of direct injection spark ignited engines
  4. Reduction of start-up hydrocarbon emissions from gasoline engines using modified exhaust valve timing
  5.  

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University of Michigan