Scale-up of chaotic fluidized bed hydrodynamics
نویسندگان
چکیده
منابع مشابه
Multi-scale CFD simulation of hydrodynamics and cracking reactions in fixed fluidized bed reactors
Fixed fluidized bed reactor is widely used to evaluate the crackability of heavy oils and the activity of catalysts. To understand the hydrodynamics, reaction kinetics and thermodynamics in conventional and modified fixed fluidized bed reactors, the computational fluid dynamics method, energy-minimization multi-scale-based two-fluid model coupled with a six-lump kinetic model was used to invest...
متن کاملHydrodynamics in the Gas-Driven Inverse Liquid-Solid Fluidized Bed
............................................................................................................................... i Co-Authorship Statement.................................................................................................... ii Acknowledgments.............................................................................................................. iii Table of
متن کاملA small-scale regularly packed circulating fluidized bed Part I: Hydrodynamics
The present investigation is based on the idea of intensifying the gas-solids contact in a circulating fluidized bed by introducing obstacles into it. Such obstacles may effectively suppress radial inhomogeneities in the solids flux and concentration, increase the dynamic solids hold-up, and break up solids clusters. This article (Part I) deals with the hydrodynamics (pressure drop and solids h...
متن کاملEffect of Bed Diameter on the Hydrodynamics of Gas-Solid Fluidized Beds
Effect of scale on the hydrodynamics of gas-solid fluidized beds was investigated in two fluidized beds of 152 mm and 78 mm in diameter. Air at room temperature was used as the fluidizing gas in the bed of sand particles. The Radioactive Particle Tracking (RPT) technique was employed to obtain the instantaneous positions of the particles at every 20 ms of the experiments. These data were u...
متن کاملEffect of Novel Swirl Distributor Plate on Hydrodynamics of Fluidized Bed Gasifier
The main advantage of a fluidized bed is its capability in excellent gas-fuel mixing. However, due to the lacks of gas radial momentum, its lateral mixing of gas-solid is not adequate. Therefore, this research is focused on fluidized bed hydrodynamics enhancement using the modified gas distributor plate design. For getting an optimum fluidized bed hydrodynamics prediction, three different class...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chemical Engineering Science
سال: 1996
ISSN: 0009-2509
DOI: 10.1016/0009-2509(96)00056-5