Measurements of burning velocities of dimethyl ether and air premixed flames at elevated pressures

Xiao Qin, Yiguang Ju

Research output: Contribution to conferencePaper

Abstract

Laminar burning velocities of dimethyl ether (DME) and air-premixed flames at elevated pressures ≤ 10 atm were measured by using a newly developed pressure-release type spherical bomb. The measurement system was validated using laminar-burning velocities of methane-air flames. A comparison with the previous experimental data showed an excellent agreement and demonstrated the accuracy and reliability of the present experimental system. At 1 atm, the measured laminar burning velocities of DME-air flames were in reasonable agreement with the previous data from spherical bomb method, but were much lower than both predictions and the experimental data of the particle image velocimetry (PIV) based counterflow flame measurements. Flame speed decreased considerably with increasing pressure. At high pressures the rich DME-air flames were strongly affected by the hydrodynamic and thermal-diffusive instabilities. This is an abstract of a paper presented at the 30th International Symposium on Combustion (Chicago, IL 7/25-30/2004).

Original languageEnglish (US)
Number of pages1
StatePublished - Jan 1 2004
Event30th International Symposium on Combustion, Abstracts of Symposium Papers - Chicago, IL, United States
Duration: Jul 25 2004Jul 30 2004

Other

Other30th International Symposium on Combustion, Abstracts of Symposium Papers
CountryUnited States
CityChicago, IL
Period7/25/047/30/04

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Fingerprint Dive into the research topics of 'Measurements of burning velocities of dimethyl ether and air premixed flames at elevated pressures'. Together they form a unique fingerprint.

  • Cite this

    Qin, X., & Ju, Y. (2004). Measurements of burning velocities of dimethyl ether and air premixed flames at elevated pressures. Paper presented at 30th International Symposium on Combustion, Abstracts of Symposium Papers, Chicago, IL, United States.