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Journal of Chemical and Petroleum Engineering، جلد ۵۰، شماره ۲، صفحات ۵۳-۶۰
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Online Detection of Hydrodynamic Changes in Fluidized Bed using Cross Average Diagonal Line |
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| چکیده انگلیسی مقاله |
Online detection of hydrodynamics of gas-solid fluidized bed was characterized using pressure fluctuations by cross recurrence plot (CRP) and cross recurrence quantification analysis (CRQA). Experiments were conducted in a lab scale fluidized bed of various particle sizes 150 μm, 280 μm and 490 μm at different gas velocities. Firstly, pattern changes of cross recurrence plot were discussed and then reference states was selected. Afterwards, cross average diagonal line (CLave) of other states corresponding to reference states were obtained. It was found that cross average diagonal line of non-normalized data initially decreases and then increases with increasing the gas velocity. When the signal is initially normalized, cross average diagonal line does not change with the superficial gas velocity. It was concluded that cross average diagonal line could be used for detecting small changes of particle size and if a proper reference state is chosen, it can be perceived as a powerful index for detecting changes in the size of particles in a fluidized bed. |
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| کلیدواژه‌های انگلیسی مقاله |
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| نویسندگان مقاله |
رضا ضرغامی |
multiphase systems research lab, school of chemical engineering, college of engineering, university of tehran, p.o. box 11155 4563, tehran, iran.
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)
هومن ضیایی halimejani | ziaei halimejani
multiphase systems research lab, school of chemical engineering, college of engineering, university of tehran, p.o. box 11155 4563, tehran, iran.
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)
نوید مستوفی |
multiphase systems research lab, school of chemical engineering, college of engineering, university of tehran, p.o. box 11155 4563, tehran, iran.
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)
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| نشانی اینترنتی |
http://jcpeng.ut.ac.ir/article_60505_104ff1946deab89d227e063d3a492610.pdf |
| فایل مقاله |
اشکال در دسترسی به فایل - ./files/site1/rds_journals/482/article-482-386109.pdf |
| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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