Simulation of soot aggregates formed by benzene pyrolysis

Shinji Hayashi; Yutaka Hisaeda; Yuusuke Asakuma; Hideyuki Aoki; Takatoshi Miura; Hiroyuki Yano; Yasuhisa Sawa

doi:10.1016/S0010-2180(98)00124-2

Simulation of soot aggregates formed by benzene pyrolysis

Shinji Hayashi, Yutaka Hisaeda, Yuusuke Asakuma, Hideyuki Aoki, Takatoshi Miura, Hiroyuki Yano, Yasuhisa Sawa

ENG - Chemical Engineering

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

27 Citations (Scopus)

Abstract

Experiments and numerical simulations were carried out to analyze the soot aggregation mechanism during benzene pyrolysis. Soot was formed by the pyrolysis of 1 mol% benzene (in 99 mol% nitrogen) in an alumina tube, which was kept at 1573K with variations of residence time (0.03 to 0.5 sec). A new cluster-cluster aggregation model called the Aggregate Mean free Path (AMP) model was developed. This model simulated the cluster-cluster aggregation between soot particles and aggregates using the particles or aggregates mean free paths. The projected images of simulated soot were compared with the electron micrographs of experimental soot with the same magnification. Simulated shape, peripheral fractal dimension and size distributions of aggregates were in good agreement with experimental data.

Original language	English
Pages (from-to)	851-860
Number of pages	10
Journal	Combustion and Flame
Volume	117
Issue number	4
DOIs	https://doi.org/10.1016/S0010-2180(98)00124-2
Publication status	Published - 1999 Jun 1

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Fuel Technology
Energy Engineering and Power Technology
Physics and Astronomy(all)

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10.1016/S0010-2180(98)00124-2

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title = "Simulation of soot aggregates formed by benzene pyrolysis",

abstract = "Experiments and numerical simulations were carried out to analyze the soot aggregation mechanism during benzene pyrolysis. Soot was formed by the pyrolysis of 1 mol% benzene (in 99 mol% nitrogen) in an alumina tube, which was kept at 1573K with variations of residence time (0.03 to 0.5 sec). A new cluster-cluster aggregation model called the Aggregate Mean free Path (AMP) model was developed. This model simulated the cluster-cluster aggregation between soot particles and aggregates using the particles or aggregates mean free paths. The projected images of simulated soot were compared with the electron micrographs of experimental soot with the same magnification. Simulated shape, peripheral fractal dimension and size distributions of aggregates were in good agreement with experimental data.",

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T1 - Simulation of soot aggregates formed by benzene pyrolysis

AU - Hayashi, Shinji

AU - Hisaeda, Yutaka

AU - Asakuma, Yuusuke

AU - Aoki, Hideyuki

AU - Miura, Takatoshi

AU - Yano, Hiroyuki

AU - Sawa, Yasuhisa

PY - 1999/6/1

Y1 - 1999/6/1

N2 - Experiments and numerical simulations were carried out to analyze the soot aggregation mechanism during benzene pyrolysis. Soot was formed by the pyrolysis of 1 mol% benzene (in 99 mol% nitrogen) in an alumina tube, which was kept at 1573K with variations of residence time (0.03 to 0.5 sec). A new cluster-cluster aggregation model called the Aggregate Mean free Path (AMP) model was developed. This model simulated the cluster-cluster aggregation between soot particles and aggregates using the particles or aggregates mean free paths. The projected images of simulated soot were compared with the electron micrographs of experimental soot with the same magnification. Simulated shape, peripheral fractal dimension and size distributions of aggregates were in good agreement with experimental data.

AB - Experiments and numerical simulations were carried out to analyze the soot aggregation mechanism during benzene pyrolysis. Soot was formed by the pyrolysis of 1 mol% benzene (in 99 mol% nitrogen) in an alumina tube, which was kept at 1573K with variations of residence time (0.03 to 0.5 sec). A new cluster-cluster aggregation model called the Aggregate Mean free Path (AMP) model was developed. This model simulated the cluster-cluster aggregation between soot particles and aggregates using the particles or aggregates mean free paths. The projected images of simulated soot were compared with the electron micrographs of experimental soot with the same magnification. Simulated shape, peripheral fractal dimension and size distributions of aggregates were in good agreement with experimental data.

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Simulation of soot aggregates formed by benzene pyrolysis

Abstract

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