J. Phys. IV France 12 (2002) Pr7-445
Laminar flame velocity determination for H 2-air-steam mixtures using the spherical bomb methodN. Lamoureux, N. Djebaili-Chaumeix and C.E. Paillard
Laboratoire de Combustion et Systèmes Réactifs, UPR 4211 du CNRS, 1 C avenue de la Recherche Scientifique, 45071 Orléans cedex 2, France
The present work reports experimental results on the determination of laminar flame velocities of hydrogen- air - diluent mixtures initially at 100 kPa and for 2 different initial temperatures 298 and 353 K. The diluent was water vapor or a mixture containing helium and carbon dioxide. The data obtained in this study are compared with the literature ones. The experimental setup consists of a spherical bomb coupled to a schlieren system and a high speed camera. The effect of the stretch on the flame velocity is characterized for all the investigated mixtures. Computed laminar flame velocities are obtained using PREMIX and CHEMKIN codes. Two different kinetic mechanisms are used, and the computed values are compared to the experimental ones.
© EDP Sciences 2002