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Diffusive thermal instabilities of C4H10-C3H8/air laminar premixed flames

Abdulwahid, Mazlan and M. Saqr, Khalid and M. Sies, Mohsin and Ujir, Haffis (2009) Diffusive thermal instabilities of C4H10-C3H8/air laminar premixed flames. The Open-Access Journal for the Basic Principles of Diffusion Theory, Experiment and Application, 9 (9). pp. 1-8. ISSN 1862-4138

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Abstract

Preferential heat and mass transfer induces diffusive thermal instabilities in premixed laminar flames. Such instabilities in hydrocarbon flames are characterized by cellular structure and a tendency to promote flame extinction. We investigate the properties of such instabilities in C4H10-C3H8/air flames. The adiabatic burning velocity of the laminar premixed flame was measured at different equivalence ratios while exhibiting cellular instabilities. Direct photographs have been captured to qualitatively asses the effect of burner plate temperature on the cellular structure of the flame. The present study preliminarily suggests a normal logarithmic correlation to predict the adiabatic burning velocity of diffusive thermal instabilities in laminar premixed C4H10-C3H8/air flames.

Item Type:Article
Uncontrolled Keywords:diffusive instability, flame dynamics, premixed gaseous flame, hybrid fuel combustion
Subjects:Q Science > QD Chemistry
Divisions:Science
ID Code:13813
Deposited By: Siti Khairiyah Nordin
Deposited On:12 Aug 2011 02:03
Last Modified:16 Dec 2013 06:35

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