In-situ observation of the soot deposition process on a solid wall with a diffusion flame along the wall

Jae Hyuk Choi; Osamu Fujita; Takahumi Tsuiki; Junhong Kim; Suk Ho Chung

doi:10.1299/jsmeb.49.167

In-situ observation of the soot deposition process on a solid wall with a diffusion flame along the wall

Jae Hyuk Choi^*, Osamu Fujita, Takahumi Tsuiki, Junhong Kim, Suk Ho Chung

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Experiments at the Japan Microgravity Center (JAMIC) have investigated the interaction between diffusion flames and solid surfaces placed near flames. The fuel for the flames was C₂H₄ and the surrounding oxygen concentration 35%, with surrounding air temperatures of T_a = 300 and 600 K. The effects of these parameters on soot distribution in diffusion flames and soot deposition on solid walls were studied. Direct images of the whole flame and shadow images of the flame with back light were recorded and used to calculate the soot volume fraction by the Abel transformation method. Results show that at the higher surrounding air temperature the soot particle distribution region is closer to the wall and results in more deposition. Numerical simulation was also performed to determine the motion of soot particles in the flames and the soot deposition characteristics. The results are in good agreement with the observed soot behavior in microgravity.

Original language	English (US)
Pages (from-to)	167-175
Number of pages	9
Journal	JSME International Journal, Series B: Fluids and Thermal Engineering
Volume	49
Issue number	1
DOIs	https://doi.org/10.1299/jsmeb.49.167
State	Published - Aug 15 2006
Externally published	Yes

Keywords

Boiler
Deposition
Diffusion combustion
Flame
Microgravity
Soot
Soot line
Volume fraction

ASJC Scopus subject areas

Mechanical Engineering
Physical and Theoretical Chemistry
Fluid Flow and Transfer Processes

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10.1299/jsmeb.49.167

Cite this

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title = "In-situ observation of the soot deposition process on a solid wall with a diffusion flame along the wall",

abstract = "Experiments at the Japan Microgravity Center (JAMIC) have investigated the interaction between diffusion flames and solid surfaces placed near flames. The fuel for the flames was C2H4 and the surrounding oxygen concentration 35%, with surrounding air temperatures of Ta = 300 and 600 K. The effects of these parameters on soot distribution in diffusion flames and soot deposition on solid walls were studied. Direct images of the whole flame and shadow images of the flame with back light were recorded and used to calculate the soot volume fraction by the Abel transformation method. Results show that at the higher surrounding air temperature the soot particle distribution region is closer to the wall and results in more deposition. Numerical simulation was also performed to determine the motion of soot particles in the flames and the soot deposition characteristics. The results are in good agreement with the observed soot behavior in microgravity.",

keywords = "Boiler, Deposition, Diffusion combustion, Flame, Microgravity, Soot, Soot line, Volume fraction",

author = "Choi, {Jae Hyuk} and Osamu Fujita and Takahumi Tsuiki and Junhong Kim and Chung, {Suk Ho}",

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T1 - In-situ observation of the soot deposition process on a solid wall with a diffusion flame along the wall

AU - Choi, Jae Hyuk

AU - Fujita, Osamu

AU - Tsuiki, Takahumi

AU - Kim, Junhong

AU - Chung, Suk Ho

PY - 2006/8/15

Y1 - 2006/8/15

N2 - Experiments at the Japan Microgravity Center (JAMIC) have investigated the interaction between diffusion flames and solid surfaces placed near flames. The fuel for the flames was C2H4 and the surrounding oxygen concentration 35%, with surrounding air temperatures of Ta = 300 and 600 K. The effects of these parameters on soot distribution in diffusion flames and soot deposition on solid walls were studied. Direct images of the whole flame and shadow images of the flame with back light were recorded and used to calculate the soot volume fraction by the Abel transformation method. Results show that at the higher surrounding air temperature the soot particle distribution region is closer to the wall and results in more deposition. Numerical simulation was also performed to determine the motion of soot particles in the flames and the soot deposition characteristics. The results are in good agreement with the observed soot behavior in microgravity.

AB - Experiments at the Japan Microgravity Center (JAMIC) have investigated the interaction between diffusion flames and solid surfaces placed near flames. The fuel for the flames was C2H4 and the surrounding oxygen concentration 35%, with surrounding air temperatures of Ta = 300 and 600 K. The effects of these parameters on soot distribution in diffusion flames and soot deposition on solid walls were studied. Direct images of the whole flame and shadow images of the flame with back light were recorded and used to calculate the soot volume fraction by the Abel transformation method. Results show that at the higher surrounding air temperature the soot particle distribution region is closer to the wall and results in more deposition. Numerical simulation was also performed to determine the motion of soot particles in the flames and the soot deposition characteristics. The results are in good agreement with the observed soot behavior in microgravity.

KW - Boiler

KW - Deposition

KW - Diffusion combustion

KW - Flame

KW - Microgravity

KW - Soot

KW - Soot line

KW - Volume fraction

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In-situ observation of the soot deposition process on a solid wall with a diffusion flame along the wall

Abstract

Keywords

ASJC Scopus subject areas

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