Fluidization behavior and liquid injection in three-dimensional prismatic spouted beds

(Autor)

Buch
198 Seiten
2019
Cuvillier Verlag
978-3-7369-9949-7 (ISBN)
72,10 inkl. MwSt
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In this PhD thesis, the flow stability in a laboratory three-dimensional prismatic spouted bed is investigated both experimentally and in CFD-DEM simulations. Liquid is injected in bottom-spray configuration with the aim of a homogeneous distribution of the coating suspension on the whole particle bed. The range of stable spouting is increased by the installation of two parallel draft plates. Nevertheless, the instable spouting regime is found to be advantageous for obtaining a homogeneous coating as the draft plates prevent the mixing in the depth of the apparatus. In addition to the investigations on laboratory scale, the residence time behavior in a continuous pilot scale spouted bed is characterized using a novel tracer method with magnetizable particles. The back-mixing in the apparatus is reduced by the insertion of separation plates with defined transfer geometries.
Erscheinungsdatum
Reihe/Serie SPE-Schriftenreihe ; 14
Verlagsort Göttingen
Sprache englisch
Maße 176 x 250 mm
Gewicht 360 g
Themenwelt Technik Maschinenbau
Schlagworte CFD-DEM simulations • Coarse - gaining • coating quality • density • Drag model • Droplet injection • Envelope density • fluidization velocity • Friction • Light microscope • liquid injection • Mesh independence • OCT • Partical detection • Partical size • rCFD • Replica • residence time distributions • Residence time measurements • Resitution coefficient • RTD experiments • spouted bed • time models • Tracer production • X-ray Microtomography • Youngs modulus
ISBN-10 3-7369-9949-6 / 3736999496
ISBN-13 978-3-7369-9949-7 / 9783736999497
Zustand Neuware
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