A meso-scale liquid-fuel-film combustor with central-porous fuel injection

Yueh Heng Li; Bi Chian Chen; Yei Chin Chao; Derek Dunn-Rankin

A meso-scale liquid-fuel-film combustor with central-porous fuel injection

Yueh Heng Li, Bi Chian Chen, Yei Chin Chao, Derek Dunn-Rankin

Research output: Contribution to conference › Paper › peer-review

Abstract

Liquid fuel combustion can provide high specific power and energy required for personal power systems. When the physical dimension of the combustor reduces below a critical value, conventional sprays are no longer viable as the mechanism for introducing fuel and specific heat recirculation mechanisms should be applied to help stabilize the flame and reduce the specific heat loss. In this paper we propose a novel concept for the miniaturization of a meso-scale cylindrical direct-injection liquid-fuel combustor wherein the fuel is injected through a central metal porous cone and forms a thin film that stores the thermal-chemical heat, optimizes vaporization rate, and inhibits quenching. This paper describes the concept of porous-core miniature combustor and presents the preliminary results of the temperature profiles, flame structure and CH∗ chemiluminescence images, as well as the flow analysis of the proposed meso-scale liquid combustor.

Original language	English
Publication status	Published - 2007 Jan 1
Event	6th Asia-Pacific Conference on Combustion, ASPACC 2007 - Nagoya, Japan Duration: 2007 May 20 → 2007 May 23

Conference

Conference	6th Asia-Pacific Conference on Combustion, ASPACC 2007
Country	Japan
City	Nagoya
Period	07-05-20 → 07-05-23

All Science Journal Classification (ASJC) codes

Chemical Engineering(all)
Energy Engineering and Power Technology
Fuel Technology
Condensed Matter Physics

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title = "A meso-scale liquid-fuel-film combustor with central-porous fuel injection",

abstract = "Liquid fuel combustion can provide high specific power and energy required for personal power systems. When the physical dimension of the combustor reduces below a critical value, conventional sprays are no longer viable as the mechanism for introducing fuel and specific heat recirculation mechanisms should be applied to help stabilize the flame and reduce the specific heat loss. In this paper we propose a novel concept for the miniaturization of a meso-scale cylindrical direct-injection liquid-fuel combustor wherein the fuel is injected through a central metal porous cone and forms a thin film that stores the thermal-chemical heat, optimizes vaporization rate, and inhibits quenching. This paper describes the concept of porous-core miniature combustor and presents the preliminary results of the temperature profiles, flame structure and CH∗ chemiluminescence images, as well as the flow analysis of the proposed meso-scale liquid combustor.",

author = "Li, {Yueh Heng} and Chen, {Bi Chian} and Chao, {Yei Chin} and Derek Dunn-Rankin",

year = "2007",

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language = "English",

note = "6th Asia-Pacific Conference on Combustion, ASPACC 2007 ; Conference date: 20-05-2007 Through 23-05-2007",

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T1 - A meso-scale liquid-fuel-film combustor with central-porous fuel injection

AU - Li, Yueh Heng

AU - Chen, Bi Chian

AU - Chao, Yei Chin

AU - Dunn-Rankin, Derek

PY - 2007/1/1

Y1 - 2007/1/1

N2 - Liquid fuel combustion can provide high specific power and energy required for personal power systems. When the physical dimension of the combustor reduces below a critical value, conventional sprays are no longer viable as the mechanism for introducing fuel and specific heat recirculation mechanisms should be applied to help stabilize the flame and reduce the specific heat loss. In this paper we propose a novel concept for the miniaturization of a meso-scale cylindrical direct-injection liquid-fuel combustor wherein the fuel is injected through a central metal porous cone and forms a thin film that stores the thermal-chemical heat, optimizes vaporization rate, and inhibits quenching. This paper describes the concept of porous-core miniature combustor and presents the preliminary results of the temperature profiles, flame structure and CH∗ chemiluminescence images, as well as the flow analysis of the proposed meso-scale liquid combustor.

AB - Liquid fuel combustion can provide high specific power and energy required for personal power systems. When the physical dimension of the combustor reduces below a critical value, conventional sprays are no longer viable as the mechanism for introducing fuel and specific heat recirculation mechanisms should be applied to help stabilize the flame and reduce the specific heat loss. In this paper we propose a novel concept for the miniaturization of a meso-scale cylindrical direct-injection liquid-fuel combustor wherein the fuel is injected through a central metal porous cone and forms a thin film that stores the thermal-chemical heat, optimizes vaporization rate, and inhibits quenching. This paper describes the concept of porous-core miniature combustor and presents the preliminary results of the temperature profiles, flame structure and CH∗ chemiluminescence images, as well as the flow analysis of the proposed meso-scale liquid combustor.

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