Experiment study on LPG flame stability of vertical burner.

Liquefied petroleum gas (LPG) is commonly used in daily life while is considered a less polluting, viable fuel. In this research, the laminar burning velocities of LPG/Air flames in atmospheric conditions via using a vertical burner with varied diameters of 9, 12, and 17 mm (with and without flame stabilizer) were calculated. Laminar burning velocity is considered the most important characteristics of a premixed flame, and reliable data is always needed for practical applications. The laminar burning velocity by Schlieren photography. The results obtained for equivalence ratio (ф= 0.76-ф=1.38) without flame stabilizer, and (ф=0.69 - ф=1.53) with flame stabilizer, for laminar burning velocity at the maximum point for burner (D = 9 mm) at equivalence ratio (ф=1.03, SL = 2.79m/s) without stabilizer, but with stabilizer became up, and the maximum temperature for burner (D = 17 mm) at equivalence ratio (ф=1.01, T=1140 K) and (T= 1190 K with stabilizer), but burner (D=12 mm) more wide rang flammability limit than them. [ABSTRACT FROM AUTHOR]