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Journal of Porous Media

ISSN for PRINT: 1091-028X

Institutional price:	$713.00
Issues per year:	8

Best Paper Award Selection - Editorial Board Site

2006, Volume9

104 pages

Issue price - $155.00

Development of a Cylindrical Porous-Medium Burner

M. M. Kamal
Department of Mechanical Power Engineering, Ain Shams University, Cairo, Abdo Basha Street, 1, Egypt

A. A. Mohamad
Department of Mechanical and Manufacturing Engineering, Centre for Environmental Engineering, Research and Education, Schulich School of Engineering, University of Calgary, Calgary, AB, T2N 1N4, Canada

ABSTRACT

An experimental investigation was performed to address the performance of a radial flow porous burner, fabricated from a ceramic-fiber lamellar structure with circular corrugated layers being sleeved around a perforated tube. The burner lean operation with porous medium was extended to 0.74 in terms of equivalence ratio for a methane-air mixture and burning capacities 1.7 times those with a free flame. The results indicated locally elevated flame temperatures close to the burner's submerged holes and a superior radiation performance, substantiated by a radiation efficiency of 37%. NO_x levels as low as 29 ppm were obtained with a maximum CO value around 4000 ppm. Swirl was imparted through a variable-speed motor to enhance turbulence and mutual heat transfer between the gas and solid phases. Only free flames responded to rotary radial flames with extension in flame stability.