DefinePK

Abstract

The optical technique has been used to determine the effect of initial temperature on laminar flame speed of Methanol, Ethanol - Air premixed mixtures experimentally inside a tube. the flame front position had been located by a photocell. The laminar flame speed measured at a laboratory conditions for a wide range of equivalence ratios. All experimental work was carried out at constant pressure (Pre-Pressure period), in order to use density ratio method for the calculation of laminar burning velocity. The flame temperature has been calculated theoretically. Mixture strength and unburned mixture temperature dependence of burning velocity is represented by empirical function over the ranges f = 0.7-1.4, Tu = 300 K-373 K at pressure of (1 atm). In overlapping ranges, the results agree well with those previously published.