✦ LIBER ✦

Effects of pressure and impingement angle in flaming processes

✍ Scribed by Harilaos H. Liakos; Maria K. Koukou; Nikolaos C. Markatos; Maria A. Founti

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 746 KB
Volume: 78
Category: Article
ISSN: 0008-4034
DOI: 10.1002/cjce.5450780428

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✦ Synopsis

Abstract

This work investigates the effects of varying the pressure of the mixture reactants and the angle of impingement on the performance characteristics of a turbulent premixed jet flame impinging on a solid surface. These effects are important for the design of torches and flaming machines used for material and metal cutting and forming. The combustion and flow characteristics are modelled using a finite volume computational approach. Based on the simulation results, it is shown that, by increasing the pressure of the mixture reactants, the flame‐surface interaction mechanisms are modified. Changing the impingement angle increases the role of chemical kinetics and reduces maximum temperature values due to increased local flame extinction. The heat released and temperature predictions are compared to experimental data and the agreement is satisfactory.

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