Prediction of Take-Over Velocity of a Binary Density System Using Pressure Fluctuations in a Fluidized Bed
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- Jang Hyun Tae
- Department of Chemical Engineering, Hanseo University
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- Kim Sang Bum
- Green Chemistry Team, Environmental and Energy Division, Korea Institute of Industrial Technology (KITECH)
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- Cha Wang Seog
- Department of Civil and Environmental Engineering, Kunsan National University
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説明
The pressure fluctuation properties and mixing degree were investigated with a binary mixture of different density particles using polymethyl methacrylate (PMMA) and sand (or natural manganese ore (NMO)) in a gas fluidized bed. This study was restricted to systems of 50% by volume jetsam, i.e. flotsam rich system. Mixing-segregation phenomena were analyzed by pressure fluctuation properties, and the results were confirmed with the mixing degree using a sieve test. It was found that take-over velocities were obtained from the value of the specific gas velocity which was observed by transition of the slope of the standard deviation of pressure fluctuations. The mixing degree was related to the variation of the bed pressure difference by measuring the height of the axial position according to gas velocity. In addition, take-over velocities could likewise be obtained from a pressure difference profile.
収録刊行物
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- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
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JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 39 (9), 924-931, 2006
公益社団法人 化学工学会
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詳細情報 詳細情報について
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- CRID
- 1390001204568070272
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- NII論文ID
- 130000019141
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- NII書誌ID
- AA00709658
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- ISSN
- 18811299
- 00219592
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- NDL書誌ID
- 8057973
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可