Soot visualization in an optical diesel engine fueled with diesel and bio-diesel fuels using multiple injection strategies

Tiegang Fang, Chia Fon F. Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An optically accessible single-cylinder high speed direct-injection (HSDI) Diesel engine was used to study the soot and combustion processes using European low sulfur diesel and biodiesel fuels with multiple injection strategies. Influences of injection timings and fuel type on soot and combustion characteristics were studied under similar loads (4 bar IMEP). In-cylinder pressure was measured for heat release analysis. High-speed combustion video was captured for all the studied cases. Transient late cycle soot was measured using a back-illumination light extinction method. NOx emissions were measured in the exhaust pipe. Different combustion modes including conventional diesel combustion and low-temperature combustion were observed from the heat release rates and the combustion images. Soot was found consistently lower for bio-diesel fuel than the European diesel fuel. However, for NOx emissions, under conventional combustion cases, it was found that biodiesel fuel leads to increased NOx emissions. But for low-temperature combustion modes, NOx emissions were lower for bio-diesel fuel than the diesel fuel. Under certain conditions, simultaneous reduction of NOx and soot was achieved for advanced lowtemperature combustion for both fuels.

Original languageEnglish (US)
Title of host publicationFall Meeting of the Eastern States Section of the Combustion Institute 2009
PublisherCombustion Institute
Pages431-445
Number of pages15
ISBN (Electronic)9781615676682
StatePublished - Jan 1 2009
EventFall Meeting of the Eastern States Section of the Combustion Institute 2009 - College Park, United States
Duration: Oct 18 2009Oct 21 2009

Publication series

NameFall Meeting of the Eastern States Section of the Combustion Institute 2009

Other

OtherFall Meeting of the Eastern States Section of the Combustion Institute 2009
CountryUnited States
CityCollege Park
Period10/18/0910/21/09

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Mechanical Engineering
  • Physical and Theoretical Chemistry

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