Investigation of soot formation in fuel-rich premixed propane/air microcombustion at low temperatures

Abdul H. Khalid, Jiashen Tian, Brent B. Skabelund, Ryan J. Milcarek

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

Abstract

The advantage of micro/meso combustion includes higher efficiency, improved heat and mass transfer, swift startup and shutdown when compared with regular combustion. This study aims to investigate the critical sooting equivalence ratio and soot precursor formation in a micro-flow reactor with a controlled temperature profile of diameter 2.3mm and their dependence on the temperature ranging from 800-1250 °C. The equivalence ratio is varied from 1-13 and flow rates of 10 and 100sccm were investigated. Also, nitrogen is used to study the effect of inert gas dilution. A gas chromatograph is used to study the exhaust gas composition. The reactor is analyzed visually for the traces of soot particles before and after combustion, each time the temperature and/or equivalence ratio is varied. From 750-950°C, no soot is indicted at all equivalence ratios even up to 100. The inert gas dilution helped in raising the critical sooting equivalence ratio as expected because of the lower temperature. The results indicated an opposite trend to what has been well understood for the pre-mixed sooting flames, i.e., decreasing temperature decreases soot formation. The capability of the reactor to examine the effects of temperature on the critical sooting equivalence ratio at different flow rates has been successfully demonstrated.

Original languageEnglish (US)
Title of host publicationASME 2020 Power Conference, POWER 2020, collocated with the 2020 International Conference on Nuclear Engineering
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791883747
DOIs
StatePublished - 2020
Event2019 Canadian Society for Civil Engineering Annual Conference, CSCE 2019 - Laval, Canada
Duration: Jun 12 2019Jun 15 2019

Publication series

NameAmerican Society of Mechanical Engineers, Power Division (Publication) POWER
Volume2020-August

Conference

Conference2019 Canadian Society for Civil Engineering Annual Conference, CSCE 2019
CountryCanada
CityLaval
Period6/12/196/15/19

Keywords

  • Meso-combustion
  • Micro flow reactor
  • Micro-combustion
  • Soot

ASJC Scopus subject areas

  • Mechanical Engineering
  • Energy Engineering and Power Technology

Fingerprint Dive into the research topics of 'Investigation of soot formation in fuel-rich premixed propane/air microcombustion at low temperatures'. Together they form a unique fingerprint.

Cite this