TY - CONF
T1 - Measurements of burning velocities of dimethyl ether and air premixed flames at elevated pressures
AU - Qin, Xiao
AU - Ju, Yiguang
N1 - Funding Information:
This research was supported by NASA Microgravity Research Grant (NNC04GA59G), American Chemical Society PRF grant (PRF # 39162-AC9) and grant from Princeton Energy Institute. Special thanks are due to Mr. D.L. Zhu at PU for many advices during the development of the experiment system, Prof. Dryer and Prof. Law for equipment supports and technical discussions. Partial support has been provided by the Carbon Mitigation Initiative, a PU research program supported by BP and Ford.
PY - 2004
Y1 - 2004
N2 - 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).
AB - 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).
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M3 - Paper
AN - SCOPUS:10344230441
SP - 44
T2 - 30th International Symposium on Combustion, Abstracts of Symposium Papers
Y2 - 25 July 2004 through 30 July 2004
ER -