Effects of wall thickness and material on flame stability in a planar micro-combustor

Liu, Lei; Zhao, Liang; Fan, Aiwu

doi:10.1007/s11771-019-4168-6

Cited by 11 publications

(2 citation statements)

References 41 publications

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“…The heat transfer between the walls and hot gases reduces due to lower wall temperature for larger widths. Lei et al [18] has numerically studied the effect of wall thickness and material on the stability of the flame. They have pointed out that the micro combustor having thicker and more conductive walls favor a large flame stability limit.…”

Section: Nomenclaturementioning

confidence: 99%

Numerical modeling and performance enhancement of micro combustor powered thermophotovoltaic systems using high contrast gratings

Gupta

Baig

Elikkottil

et al. 2022

Applied Thermal Engineering

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Section: Nomenclaturementioning

confidence: 99%

Numerical modeling and performance enhancement of micro combustor powered thermophotovoltaic systems using high contrast gratings

Gupta

Baig

Elikkottil

et al. 2022

Applied Thermal Engineering

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“…On the other hand, warm wind helps stabilize micro-flames, through decreasing surface heat loss. Providing warm air to the exterior walls for keeping the high and uniform temperature is one effective way to improve the combustion stability of micro-combustors [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Study on combustion stability of a miniature reciprocating piston internal combustion engine

Zhi

Wang

et al. 2020

J. Micromech. Microeng.

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The combustion of a micro-piston internal combustion engine with platinum wire glow ignition is diagnosed. The results show that the combustion starting point of the micro piston internal combustion engine varies greatly, and the combustion duration is various and long. The coefficient of variation of pmax is as high as 28.5%, the combustion stability is poor. Therefore, it is suggested to improve the thermal environment in the cylinder to improve the combustion stability. One method is to increase the temperature in the cylinder to reduce the duration and the cyclic variation of combustion. The other method is to increase the temperature of the platinum wire to improve the stability of the starting point of combustion and to reduce the cyclic variation of combustion. The test results show that with the increase in the cylinder body temperature, the distribution of combustion starting point is more concentrated, and the coefficient of variation of pmax decreases by about 38.6%. The stability of combustion increases. So the combustion stability can be improved by appropriately increasing the temperature of cylinder body. With the increase temperature of the platinum wire, the ignition and combustion will be facilitated and the combustion stability will be improved. At the same time, the movement of the gas near the platinum wire will be accelerated, which gives rise to affect the flame-kernel development and flame propagation. The ignition points will become scattered, which increases the instability of combustion.

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A numerical investigation in buoyancy effects on micro jet diffusion flame

Liu¹,

Zhao

Chen³

et al. 2020

J. Cent. South Univ.

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Effects of wall thickness and material on flame stability in a planar micro-combustor

Cited by 11 publications

References 41 publications

Numerical modeling and performance enhancement of micro combustor powered thermophotovoltaic systems using high contrast gratings

Numerical modeling and performance enhancement of micro combustor powered thermophotovoltaic systems using high contrast gratings

Study on combustion stability of a miniature reciprocating piston internal combustion engine

A numerical investigation in buoyancy effects on micro jet diffusion flame

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