Download e-book for iPad: Rotary kilns : transport phenomena and transport processes by Akwasi A Boateng

By Akwasi A Boateng

ISBN-10: 0080557120

ISBN-13: 9780080557120

ISBN-10: 0750678771

ISBN-13: 9780750678773

Rotary Kilns-rotating commercial drying ovens-are used for a wide selection of functions together with processing uncooked minerals and feedstocks in addition to heat-treating harmful wastes. they're quite severe within the manufacture of Portland cement. Their layout and operation is important to their effective utilization, which if performed incorrectly may end up in improperly taken care of fabrics and over the top, excessive gas costs. Read more...

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Extra resources for Rotary kilns : transport phenomena and transport processes

Example text

Hence the key feature of a rotary granular bed is the motion in the transverse plane, which sets the axial flow in motion and is dependent upon the rotation rate, degree of fill (volume of the kiln occupied by material) and the rheological properties of the particulate material. 2 Bed heat transfer paths. 1. Internal conduction. 2. Particleto-particle conduction. 3. Particle-to-particle radiation. 4. Interparticle convection. 18 Chapter 2 Basic Description of Rotary Kiln Operation the transverse direction, often associated with a radial mixing coefficient.

Boateng. “Boundary layer modeling of granular flow in the transverse plane of a partially filled rotating cylinder,” Int. J. Multiphase Flow, 24, 499–521, 1998. A. A. Boateng. “Rotary kiln transport phenomena: Study of the bed motion and heat transfer,” The University of British Columbia, Vancouver, Canada, 1993. References 31 A. A. Boateng and P. V. Barr. “Granular flow behaviour in the transverse plane of a partially filled rotating cylinder,” J. , 330, 233–249, 1997. J. K. Brimacombe and A. P.

As a result, high potential energy is built up during the transition and is accompanied by material buildup prior to release into the active layer. Flow instabilities result, which manifest themselves into formation of multiple dynamic angles of repose with unsteady velocity distribution at the exposed bed surface. The active layer depth and bed flow properties depend on the coefficient of restitution of the material. The flow properties of interest include granular temperature, which is a measure of kinetic energy in random motion of particles, and dilation.

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Rotary kilns : transport phenomena and transport processes by Akwasi A Boateng


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