A combined experimental/computational investigation of stratified combustion in methane-air mixtures

  • Taekyu Kang
  • , Dimitrios C. Kyritsis

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Although the importance of stratified combustion was early realized, there are still not enough data to fully characterize it mainly due to experimental difficulties of setting up mixture stratification in a controllable manner. As a contribution towards this shortage, controllable stratification was achieved with a technique based on convective-diffusive balance in a novel chamber. The measured flame speeds in the chamber showed that there were significant deviations from quasi-homogeneous flame speeds especially for flames that experienced higher concentration gradients. The experimental results were rationalized theoretically, using appropriate flame asymptotics. The emphasis lies on the establishment of the lean flammability extension, which can lead to significant fuel economy in practical systems and to the increase in flame speeds because of the non-adiabatic flames established in stratified media.

Original languageBritish English
Title of host publicationECOS 2006 - Proceedings of the 19th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems
EditorsChristos A. Frangopoulos, Constantine D. Rakopoulos, George Tsatsaronis
PublisherNational Technical University of Athens
Pages233-238
Number of pages6
ISBN (Electronic)9608758424
StatePublished - 2006
Event19th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2006 - Aghia Pelagia, Crete, Greece
Duration: 12 Jul 200614 Jul 2006

Publication series

NameECOS 2006 - Proceedings of the 19th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems

Conference

Conference19th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2006
Country/TerritoryGreece
CityAghia Pelagia, Crete
Period12/07/0614/07/06

Keywords

  • Flame propagation
  • Laminar flame speed
  • Stratified combustion

Fingerprint

Dive into the research topics of 'A combined experimental/computational investigation of stratified combustion in methane-air mixtures'. Together they form a unique fingerprint.

Cite this