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多孔介质期刊
影响因子: 1.061 5年影响因子: 1.151 SJR: 0.504 SNIP: 0.671 CiteScore™: 1.58

ISSN 打印: 1091-028X
ISSN 在线: 1934-0508

多孔介质期刊

DOI: 10.1615/JPorMedia.v9.i5.70
pages 469-481

Development of a Cylindrical Porous-Medium Burner

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

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%. NOx 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.


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