Impact of the Nozzle Angles on Counterflow Diffusion Flame to Strain Rate Variations

Assist. Prof. Dr. Jassim M. Abdulkarim, Prof. Dr. Jamal Y. Al Abass , Paiman S. Salih, Shadi B. Ahmed, Hanin N. Al-Kalany

Diffusion Counter flame, strain rate, and Flame Extinction.

The Diffusion laminar combustion of liquefied petroleum gas (LPG) and air is studied experimentally using counterflowing axisymmetric jets. Attributes of this type of burner arrangement for studying laminar combustion are discussed in terms of flame geometry, angle of nozzle, strain rate, and measurement access. In the current research, an integrated combustion system was designed and developed for a type of counterflow diffusion flame. To study formation of the disc flame and the limits of stability, three types of nozzle with different angles (30°, 45°, and 60°) were used, an integrated design of two perpendicular burners was made to maintain the temperature of the mixture constant before the reaction. In the current study the charts of flame stability of diffusion flame with different equivalence ratios (0.65≤ Ï• ≥1.45) are obtained , and determine the limits of temperature distribution and strain rate.

10.22161/ijaers/3.10.31