Author: Alam Rahman Khan WardagPublisher:
ISBN:
Category :
Languages : en
Pages : 225
Book Description
Hydrodynamic and Heat Transfer Study in Corrugated Wall Bubbling Fluidized Bed Experiments and CFD Simulations
Author: Alam Rahman Khan WardagPublisher:
ISBN:
Category :
Languages : en
Pages : 225
Book Description
Hydrodynamic and Heat Transfer Study in Corrugated Wall Bubbling Fluidized Bed Experiments and CFD Simulations
Author: Alam Nawaz Khan WardagHydrodynamics and Heat Transfer in Fluidized Beds
Author: Sergeĭ Stepanovich ZabrodskiĭPublisher:
ISBN:
Category : Fluidization
Languages : en
Pages : 412
Book Description
Hydrodynamic and Heat Transfer Simulation of Fluidized Bed Using CFD
Author: Osama Sayed AbdPublisher:
ISBN:
Category : Technology
Languages : en
Pages :
Book Description
Hydrodynamic and Heat Transfer Simulation of Fluidized Bed Using CFD.
Fluid Dynamics and Heat Transfer in Circulating Fluidized Beds
Author: Shihui ZhouPublisher:
ISBN:
Category :
Languages : en
Pages : 226
Book Description
A new theoretical approach to the modelling of the upward flow of gas-particle suspensions is presented. In this, the proposed theory is used to predict suspension concentration, radial gas and solids velocities, axial gas and solids velocities. This thesis provides a general expression for slip velocity between gas and solids phases. The equivalence of pressure gradient with suspension concentration is demonstrated. The experimentally observed existence of core-annulus flow structure, a rapidly- rising dilute core surrounded by a slowly-falling denser annulus adjacent to the pipe walls, in vertical risers is predicted by the theory. Sodium chloride tracer impulse injection was used to measure the longitudinal solids mixing in circulating fluidized bed risers of internal diameter 0.152 and 0.305m at superficial gas velocity from 2.8 to 5.0 m/s for mean solids circulation flux from 5.0 to 80 kg/m2s. The measured solids mixing data were satisfactorily described by a simple one-dimensional dispersion model which permits residence time distribution curves to be calculated directly from a knowledge of operating conditions. The degree of longitudinal solids mixing in the riser is found to decrease with increase in riser diameter. The measurement of instantaneous local temperature fluctuation traces and mean thermal boundary layers was conducted with a special probe for various operating conditions. A mechanism, in which eddying particle cloud swarms and gas packets are pictured as the receptors of heat, and relatively steady conduction of heat and unsteady random transport of heat play the principal roles in the wall-to-suspension heat transfer, is proposed and is analyzed mathematically. Overall heat transfer coefficients were measured on 0.180 m long heat transfer section in two scale cold model circulating fluidized bed risers at several temperature differences for ... powder at superfical gas velocity from 1.96 to 5.66 m/s, and for solids circulation fluxes up to 118.54 kg/m2s. Average heat transfer coefficients increase with suspension concentration which ranged from 0 to 86.09 kg/m3, and decrease with heat transfer temperature difference, Tw - Tb, which ranged from 12 to 121.5 degrees C Heat transfer coefficients are found to increase with riser diameter.
An Experimental Study of Hydrodynamics and Heat Transfer in a Pressurized Fluidized Bed with Horizontal Tubes
Author: Elisabeth OlssonAn Experimental Study of Hydrodynamics and Heat Transfer in a Pressurized Fluidized Bed with Horizontal Tubes
Author: Elisabet OlssonHydrodynamics and Heat Transfer in a Pulsed Bubbling Fluidized Bed [microform]
![Hydrodynamics and Heat Transfer in a Pulsed Bubbling Fluidized Bed [microform] PDF](https://books.google.com/books/content/images/frontcover/x-1UAQAACAAJ?fife=w80-h100)
Author: Dahai ZhangPublisher: Library and Archives Canada = Bibliothèque et Archives Canada
ISBN: 9780494019924
Category : Fluidization
Languages : en
Pages : 428
Book Description
Hydrodynamic and Heat Transfer Studies in Gas-solid Fluidized Beds
Author: Ajay MathurHydrodynamics and Heat Transfer in Fluidized Beds
Author: Sergei Stepanovich ZabrodskiiPublisher:
ISBN:
Category : Fluidization
Languages : en
Pages : 0
Book Description