HYDRODYNAMICS OF A GAS-SOLID FLUIDIZED BED AT ELEVATED TEMPERATURES USING THE RADIOACTIVE PARTICLE TRACKING TECHNIQUE

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SANAEI SHABNAM; MOSTOUFI NAVID; RADMANESH RAMIN; SOTUDEH GHAREBAGH RAHMAT; CHAOUKI JAMAL

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Journal Paper

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Journal: Iranian Journal of Chemistry and Chemical Engineering Year:2012 | Volume:31 | Issue:2 (62) Page(s): 65-70

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Title

HYDRODYNAMICS OF A GAS-SOLID FLUIDIZED BED AT ELEVATED TEMPERATURES USING THE RADIOACTIVE PARTICLE TRACKING TECHNIQUE

Author(s)

Keywords

FLUIDIZED BED

HIGH TEMPERATURE

HYDRODYNAMICS

RADIOACTIVE PARTICLE TRACKING

Abstract

Effect of temperature on HYDRODYNAMICS of bubbling gas-solid FLUIDIZED BEDs was investigated. Experiments were carried out in the range of 25-600ºC and different superficial gas velocities in the range of 0.17-0.78 m/s with sand particles. Time-position trajectory of particles was obtained by RADIOACTIVE PARTICLE TRACKING technique. These data were used for determination of mean velocities of upward-moving (including bubble wake and ascending clusters) and downward-moving (descending clusters) particles. It was found that the upward velocity increases by increasing temperature up to 300oC, however, it decreases by further increase in temperature. Due to the wall effect, there is no significant change in the mean velocity of downward-moving clusters. The change in hydrodynamic parameters with temperature can be a consequence of changing physical properties of the bed which have been represented by Reynolds number in this study.

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APA: Copy

SANAEI, SHABNAM, MOSTOUFI, NAVID, RADMANESH, RAMIN, SOTUDEH GHAREBAGH, RAHMAT, & CHAOUKI, JAMAL. (2012). HYDRODYNAMICS OF A GAS-SOLID FLUIDIZED BED AT ELEVATED TEMPERATURES USING THE RADIOACTIVE PARTICLE TRACKING TECHNIQUE. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), 31(2 (62)), 65-70. SID. https://sid.ir/paper/572408/en

Vancouver: Copy

SANAEI SHABNAM, MOSTOUFI NAVID, RADMANESH RAMIN, SOTUDEH GHAREBAGH RAHMAT, CHAOUKI JAMAL. HYDRODYNAMICS OF A GAS-SOLID FLUIDIZED BED AT ELEVATED TEMPERATURES USING THE RADIOACTIVE PARTICLE TRACKING TECHNIQUE. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE)[Internet]. 2012;31(2 (62)):65-70. Available from: https://sid.ir/paper/572408/en

IEEE: Copy

SHABNAM SANAEI, NAVID MOSTOUFI, RAMIN RADMANESH, RAHMAT SOTUDEH GHAREBAGH, and JAMAL CHAOUKI, “HYDRODYNAMICS OF A GAS-SOLID FLUIDIZED BED AT ELEVATED TEMPERATURES USING THE RADIOACTIVE PARTICLE TRACKING TECHNIQUE,” IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), vol. 31, no. 2 (62), pp. 65–70, 2012, [Online]. Available: https://sid.ir/paper/572408/en

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