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Spontaneous ignition of dust deposits. Ignition temperature and induction time.
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- LIANG Hua
- Dept. of Chem. Proc. Engng., Hokkaido University
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- TANAKA Tatsuo
- Dept. of Chem. Proc. Engng., Hokkaido University
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- NAKAJIMA Yoji
- Dept. of Chem. Proc. Engng., Hokkaido University
Bibliographic Information
- Other Title
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- 粉体層の自然発火について 発火温度と誘導時間
- Ignition Temperature and Induction Time
- 発火温度と誘導時間
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Description
The temperature distribution in the combustible dust deposits placed in hot environments is described by a differential equation, according to the thermal theory. The temperature profiles of the dust deposits at any time could be calculated at various ambient temperatures by solving the equation using the finite element method. Thus, the minimum ambient temperature for ignition, which is defined as the ignition temperature, and the induction time to ignition could be determined. With a cylindrical cork dust deposit (volume=3.2×10-3m3, radius=0.08m), the resulting temperature distribution in the radial direction at any time agrees well with the experimental data currently reported by Leuschke, except for extremely high ambient temperatures. Therefore, it is practicable to estimate the spontaneous ignition behavior of dust deposits by computer simulation.
Journal
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- Journal of the Society of Powder Technology, Japan
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Journal of the Society of Powder Technology, Japan 23 (5), 326-331, 1986
The Society of Powder Technology, Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390282679489834752
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- NII Article ID
- 130003777065
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- ISSN
- 18837239
- 03866157
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- OpenAIRE
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- Abstract License Flag
- Disallowed