Diffusion flame instabilities in a 0.75 mm non-premixed microburner

Miesse, Craig M.; Masel, Richard I.; Short, Mark; Shannon, Mark A.

doi:10.1016/j.proci.2004.08.140

Cited by 85 publications

(31 citation statements)

References 8 publications

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“…For example, Ju and coworker [9,10] observed fast and slow burning regimes and spinning flames in meso-scale channels. Miesse et al [11,12] and Prakash et al [13] found various diffusion flame modes such as multiple discrete flame cells in Y-shaped micro-combustors.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical investigations of flame pattern formations in a radial microchannel

Fan

Minaev

Sereshchenko

et al. 2009

Proceedings of the Combustion Institute

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Section: Introductionmentioning

confidence: 99%

Experimental and numerical investigations of flame pattern formations in a radial microchannel

Fan

Minaev

Sereshchenko

et al. 2009

Proceedings of the Combustion Institute

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“…Non-premixed flames in a confined polycrystalline channel with a gap height of 0.75 mm were studied by Miesse, et al (2004Miesse, et al ( , 2005, where the cellular diffusion instability is presented (see Fig. 11 (left)).…”

Section: Instability and Othersmentioning

confidence: 99%

“…11. Left: the cellular diffusion instability observed in a confined polycrystalline channel with gap height of 0.75 mm was studied by Miesse, et al (2005); right: flame street observed by Xu and Ju (2009).…”

Section: Instability and Othersmentioning

confidence: 99%

Progress in small-scale combustion

Nakamura

Gao

Matsuoka

2017

JTST

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This article briefly reviews the recent works related to small-scale combustion and its potential impact into combustion science and engineering is presented. Followed by a simple description of the scale effect on combustion to highlight its "unique" feature, past related works are then summarized. The impact of heat recirculation appearing in combustion systems, which is the most prominent feature of a micro-or small-scale combustion system, is focused upon and is understood that exactly the same strategy promising better combustion performance is confirmed irrespective of flame type (either premixed or non-premixed). With respect to this, paying attention to the entire combustor design, to optimize within the target working range is a crucial matter when micro-scale combustion is adopted. Potential subjects to be covered to further promote these aspects in this field are then presented.

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“…Several researchers have studied oxygen combustion and clarified its fundamental phenomena (Maruta et al, 2007;Toftegaard et al, 2010;Sevault et al, 2012;Kobayashi et al, 2013;Bongartz and Ghoniem, 2015;Shimokuri et al, 2015). Research works on micro flames have revealed the essence of small-scale combustion (Miesse et al, 2005;Chen et al, 2007;Ju and Maruta, 2011;Hirasawa et al, 2013;Saiki and Suzuki, 2013;Nakamura et al, 2017). On the basis of the knowledge on these oxygen and small-scale combustions, we can handle biogas-oxygen diffusion flames in a small-scale counterflow burner.…”

Section: Introductionmentioning

confidence: 99%

Oxygen combustion of CH<sub>4</sub>-CO<sub>2</sub> mixture in a small-scale counterflow burner

Kadowaki

Kohatsu²,

Uehara³

et al. 2018

JTST

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Oxygen combustion of CH4-CO2 mixture in a small-scale counterflow burner was studied. A diffusion flame was stabilized in the gap between opposed ports ejecting fuel and oxygen gases, and its thickness which depended on the gap distance between burner ports, inner diameter of burner tubes, flow rate of gases and fuel gas component was measured. The gas flow rates were varied such that the apparent equivalence ratio became constant at unity, while the gap distance was varied in the range from 1 mm to less. It was shown that the flame thickness decreased monotonically as the gap distance decreased and that the diffusion flame became thinner when the methane concentration in fuel gas became lower. Increased flame thickness was observed at large gas flow rate, and a diffusion flame was found in smaller gap distance at larger inner diameter. From these data, the relation between the flame thickness and the flame stretch rate was summarized, showing that the flame thickness decreased as the flame stretch became stronger, i.e. the thickness varied inversely with the square root of stretch rate. To elucidate the dependence of the flame thickness on the flame stretch rate, the flame thickness normalized by the average velocity of oxygen gas and the inner diameter was introduced. It was confirmed that the normalized flame thickness depended only on the flame stretch rate.

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Diffusion flame instabilities in a 0.75 mm non-premixed microburner

Cited by 85 publications

References 8 publications

Experimental and numerical investigations of flame pattern formations in a radial microchannel

Experimental and numerical investigations of flame pattern formations in a radial microchannel

Progress in small-scale combustion

Oxygen combustion of CH<sub>4</sub>-CO<sub>2</sub> mixture in a small-scale counterflow burner

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