Two dimensional numerical computation of a circulating fluidized bed biomass gasifier

... study was validated against the experimental data of Keawpanha et al [29] using Japan cedar as a biomass The gasifier was operated at the temperature of 700  C, S/B of one and steam temperature of ... the bed material, which can be either sand or char; in addition, these apparatuses recirculate nearly all of the bed material and char with a cyclone separator A schematic...

Ngày tải lên: 29/07/2016, 14:03

... turbulence model for packed bed gas phase and free board, a radiation model for solid phase, a bed shrinkage model, and interphase heat transfer model In this study, the ultimate mathematical model for ... shrinking biomass particle, Chem Eng Sci 59 (10) (May 2004) 1999e2012 [26] N Fernando, M Amin, M Narayana, T Jayawickrama, S Jayasena, A mathematical model for py...

Ngày tải lên: 29/07/2016, 14:02

... mass of carbon in a char particle, kg mass of carbon in the reactor, kg mass of char (carbon and fuel ash) in the reactor, kg critical value of mass of char in the reactor, kg mass of total inventory ... mass fraction of carbon in the char of the reactor, kg/kg mass fraction of carbon in the char after devolatilization, kg/kg mass fraction of carb...

Ngày tải lên: 29/07/2016, 15:39

... Local Rules Picture of w Next we explain our pictorial approach, which is a two-dimensional presentation of Berele’s algorithm based on a modified set of local rules in the spirit of Fomin We draw ... (i − 1, j ), the same holds for the vertices (i, j ) 3.3 Structure of proof of Theorem 3.4 The rest of this section is devoted to the proof of Theorem 3.4 The proof pr...

Ngày tải lên: 07/08/2014, 08:22

... after dissection (arrow) As non-invasive alternative procedures, magnetic resonance imaging with heavily T2-weighted images may show a bright fluid-filled tract, and computed tomography can also ... Doppler hysterosonography have been used successfully in many cases to allow direct visualization of the uterine fistulae It has been demonstrated that the normal sonographic appearance o...

Ngày tải lên: 11/08/2014, 19:21

... ground-state energies of a two- dimensional gas of neutral atoms with magnetic-dipole interaction, in the ThomasFermi -Dirac approximation For many atoms in a harmonic trap, we discuss the numerical ... spin- density functionals of a 2D fermionic gas of dipolar atoms under the scheme of TFD approximation For a system with many atoms, we give analytic...

Ngày tải lên: 13/10/2015, 16:50

... field leading to reduced screening in a spin-polarized electron gas We have also obtained similar results for RIS with zi = 490˚ A and Nid = 3.2 × 1013 cm−2 and IRS with Λ = 100˚ A, ˚ ∆ = 3. 5A IV ... values of zi and Nid = 3.2 × 1013 cm−2 and interface impurity scattering (IIS) with zi = and Ni0 = × 109 cm−2 The results shown in Fig indicate that the mobility incr...

Ngày tải lên: 31/10/2015, 10:44

... Cite this article as: Alonso: Any two-dimensional Normed space is a generalized Day-James space Journal of Inequalities and Applications 2011 2011:2 Submit your manuscript to a journal and benefit ... with the above norm is called an ℓψ-ℓ space The purpose of this paper is to show that any two-dimensional normed space is isometrically isomorphic to an ℓψ-ℓ...

Ngày tải lên: 21/06/2014, 03:20

... Comgels of membrane proteins to 2-D solubilized by other methods, protein gels solubilized by the latter method exhibited a larger number of polypeptides Similarly, gels of membrane proteins from ... that the membrane fraction was enriched in plasma membrane SDS-PAGE patterns of total proteins, proteins from the cytosolic fraction, and proteins solubilized from...

Ngày tải lên: 08/08/2014, 23:22

... These integrals have integration limits (— 00, + 00) indepen, URLAND dent of the initial truncation points and therefore can be evaluated using precise numerical integration methods The integration ... variable index a index (j expansion = (i 1, index 1, = c with of convergent series involving a n) c = n (positive integer (n - 1)/2) from to + 00) varying independently for in...

Ngày tải lên: 09/08/2014, 22:22

... A NUMERICAL STUDY OF A PERMEABLE CAPSULE UNDER STOKES FLOWS BY THE IMMERSED INTERFACE METHOD PAHALA GEDARA JAYATHILAKE (B Sc., University of Moratuwa, Sri Lanka) A THESIS SUBMITTED FOR THE ... physical parameters, extend the IIM approach to study the adhesion and detachment of a permeable capsule adhered onto a rigid planar substrate in the...

Ngày tải lên: 11/09/2015, 09:15

... to characterize the material Another type of material that is characterized by a broad hysteresis loop is called hard magnetic material 1.3.1 Hard magnetic materials (Permanent magnets) Permanent ... commutator motor: The construction of a permanent magnet DC motor( PMDC) is similar to a DC conventional motor with the electromagnetic excitation system replaced by per...

Ngày tải lên: 16/09/2015, 12:26

... Introduction 2) The numerical model is then extended for the study of the effects of rotation of the outer cylinder on the flow and the heat transfer in concentric and eccentric annuli Furthermore, ... effects of various system parameters such as the geometry of the annulus, the properties of the fluid and the rotation rate of the ou...

Ngày tải lên: 27/11/2015, 11:12

Ngày tải lên: 27/11/2015, 11:19