mass transfer derived from bubbling bed model

... calculate ASE for genetic parameter estimates derived from RR models and to apply the method to a field data set MATERIALS AND METHODS 2.1 Random regression model Consider a variance-covariance (VCV) ... points 2.2 Calculation of standard error of parameters derived from RR coefficients ˆ Consider a genetic variance covariance matrix, G, derived from equaˆ = Φ K Φ , where Φ has dimension t × k, K ... parameter estimates derived from Bayesian analyses using Gibbs sampling With REML estimation by the average information algorithm, approximate variances of variance components are obtained from the inverse...

Ngày tải lên: 14/08/2014, 13:22

... the pyrolysiseoxidation zone product gas Fig Physical model of the gasification zone Model development 2.1 Model description The present model deals with the reduction zone (Dimensions given in ... rate (the rate of chemical reaction without heat and mass- transfer limitations) The effectiveness factor (ranged between and 1) is derived from the catalyst theory and used to quantify how much ... developed model in predicting the thermo-chemistry of char gasification and the heat and mass transfer phenomena within the downdraft reactor Simulations In this section, the results obtained from...

Ngày tải lên: 01/08/2016, 09:31

... (1988), Modeling Simultaneous Heat and Mass Transfer in Isotropic Sphere, Trans ASEA, pp 31 Husain A., Chen C.S., Clayton J T, Whitney L.F (1972), Mathematical Simulation of Mass and Heat Transfer ... C.S., Clayton J T (1973), Simultaneuos Heat and Mass Diffusion in Biological Material, Trans ASAE, pp 69-73 Luikov, A V (1980), Heat and mass transfer, Mir Publisher, Moscow Peebles E D, Christopher...

Ngày tải lên: 28/08/2013, 08:31

... the top 20 parses from the probabilistic model This method achieves a significant improvement over the accuracy of the probabilistic model alone Kernels Derived from Probabilistic Models In recent ... probability model The parameters of this probability model are then trained, so that they reflect what features of trees are relevant to parsing The kernel is then derived from this trained model in ... selecting a parse tree from the list of candidate trees suggested by a probabilistic model Furthermore, we only consider learning to rerank the output of a particular probabilistic model, without requiring...

Ngày tải lên: 08/03/2014, 04:22

... of heat and/or mass transfer, analytical/numerical solutions and optimization of the processes The first chapter deals with the description and mass transfer analysis of fixed -bed chromatographic ... the kinetic adsorption models by heterogeneous mechanisms applied in the studies of mass transfer in chromatography The kinetic adsorption models are implemented and described according to the ... breakthrough curve) of a model of chromatography combined with the mass balance equation of an ideal model (no axial diffusion) Later, Goldstein (1953) derived a solution of the Thomas model that is valid...

Ngày tải lên: 19/06/2014, 10:20

... 1.0 Mass constant Cathodetransfer CPE phase element 0.8 Anode charge Charge transfer transfer resistance resistance (Rct) Cathode Mass transfer polarization resistance (Rmt) ANODE CHARGE TRANSFER ... electrode with microporous layer 22 Heat and Mass Transfer – Modeling and Simulation Therefore, in order to maximize the cell performance not only in terms of mass transfer, but in global terms, it is ... for Nafion®-based PEMFC Therefore, the MPL 30 Heat and Mass Transfer – Modeling and Simulation does not only have influence in terms of mass transfer limitations, but in kinetic and ohmic ones due...

Ngày tải lên: 19/06/2014, 10:20

... reaction ohmic resistance from impedance measurement resistance for the charge transfer process constant phase element for the charge transfer process resistance for the mass transfer process constant ... and the fin This work will consider the heat and mass transfer for a representative tube and fin elementary unit 44 Heat and Mass Transfer – Modeling and Simulation 2l 2l Pl 2h 2h Pt air Pl ... condensate-film, and the mass transfer process between the air-flow and the condensate-film (Fig 3) Air flow fin 2l r tube Heat flux 2h Condensate mass flux Condensate-film Fig Heat and mass transfer phenomenon...

Ngày tải lên: 19/06/2014, 10:20

... (5),fin efficiency (67) Fig The global calculation algorithm for heat and mass transfer models 54 Heat and Mass Transfer – Modeling and Simulation 2.5 Heat performance characterization In order ... transfer coefficient, estimated from equation (7), involves the sensible heattransfer coefficient and the part due to mass transfer The exact values of the average sensible and overall heat -transfer ... Analysis of one-dimensional fin assembly heat transfer with dehumidification, Int J of Heat mass transfer, 38-3, 455-462 66 Heat and Mass Transfer – Modeling and Simulation Khalfi, M.S ; Benelmir,...

Ngày tải lên: 19/06/2014, 10:20

... and Mass Transfer – Modeling and Simulation It can be seen in Fig.4 that, with the increasing of WHSV, methanol conversion reduced from 95.7% to 49.1%; mole content of H2 was also decreased from ... CuO/ZnO/Al2O3 catalytic coating than the conventional fixed bed catalyst, especially in micro-reactors 78 Heat and Mass Transfer – Modeling and Simulation Morphology of the cold sprayed NiO/Al2O3 ... seen from Fig.11 At inlet temperature of 453 K, rate of △X changed from fast to slow with inlet velocity; at 453 K, rate of △X represented a linearly variation; however, at 82 Heat and Mass Transfer...

Ngày tải lên: 19/06/2014, 10:20

... forced convective heat and mass transfer regimes for nanofluids flowing in semi-infinite geometries, i.e external boundary layer flows along 96 Heat and Mass Transfer Modeling and Simulation flat ... 108 Heat and Mass Transfer Modeling and Simulation Fig 12 Velocity boundary layer for CuO / water nanofluid Fig 13 Velocity boundary layer for Alumina / water nanofluid Heat and Mass Transfer in ... extracted from Figures and are that the mass flow has an intense upward motion close to the wall (y=0) while the viscous layer is mainly fed with fluid coming from the crosswise direction from the...

Ngày tải lên: 19/06/2014, 10:20

... water mass flow rate and the NTU profiles in the cooling tower Also, the state of the outlet air from the cooling tower can be fully determined with this model The Merkel model can be derived from ... section presents the definition of the variables used in the model The model formulation is described as follows 3.1 Heat and mass transfer in the fill section for unsaturated air The equations ... specific heat capacity J.kg-1.K-1 acceleration of the gravity m.s-2 heat transfer coefficient W.m-2.K-1 114 Heat and Mass Transfer – Modeling and Simulation k K thermal conductivity W.m-1.K-1 parameter...

Ngày tải lên: 19/06/2014, 10:20

... blowdown water mass flow rate, kg/s drift water mass flow rate, kg/s mass flow rate for the evaporated water, kg/s inlet water mass flow rate in the cooling tower, kg/s average water mass flow rate ... models are becoming available, but a major question that still remains is the accuracy of predictions of drying processes using mathematical models It is highly 144 Heat and Mass Transfer – Modeling ... mass flow rate in the cooling tower, kg/s outlet water mass flow rate from the cooling tower, kg/s makeup water mass flow rate, kg/s number of transfer units, dimensionless number of cycles of concentration,...

Ngày tải lên: 19/06/2014, 10:20

... 152 Heat and Mass Transfer – Modeling and Simulation i the external mass transfer resistance is negligible, but the internal mass transfer resistance is large (Bi∞), ... Mathematical Modelling of Mass Transfer Exemplified of Convection Drying of Biological Materials 159 Moisture content from model, d.b RMSE=0.023 R2 =0.999 I period II period 0 Moisture content from empirical ... obtained from experiments and from mathematical model suggest that during the convective drying of parsley root slices there is a period of time during which the conditions of external mass transfer...

Ngày tải lên: 19/06/2014, 10:20

... Ti3O5, and Ti4O7 176 Heat and Mass Transfer – Modeling and Simulation Elements Mg K Na Ca Si Al Fe Ti Chemical form MgO K2O Na2O CaO SiO2 Al2O3 FeO TiO2 % in mass 10.2 1.2 8.8 50.4 12.2 11.9 ... metal ‘J’ from the L liquid phase, whereas ( J M j ) is the equivalent density of molar flux of a metal J from the liquid phase The total surfacic densities of molar flux of oxygen from the liquid ... yield:  Q  d ni0  ni0 dQ dni  qvN A  JR   i A dt A dt A.qN A v dt (31) 174 Heat and Mass Transfer – Modeling and Simulation dQ 1  I represents the current in the plasma and F  qN A  96485...

Ngày tải lên: 19/06/2014, 10:20

... step is changed from electron -transfer in the electric double layer to mass transfer in the diffusion layer, and expressed by the concentration overpotential; instability arises from the fluctuation ... 192 Heat and Mass Transfer – Modeling and Simulation In the secondary nodule formation after long-term deposition, it has been newly found that the flow mode of the solution changes from a laminar ... the rate of electron transfer is sufficiently high, the mass transfer processes in the solution phase and the crystal phase become rate-determining steps, so that the electron transfer process is...

Ngày tải lên: 19/06/2014, 10:20

... 212 Heat and Mass Transfer – Modeling and Simulation is required For the external magnetic flux density defined by B0 ... y , z , t   a   jz f  x , y ,0, t    zmFDm   z    z  (70b) 214 Heat and Mass Transfer – Modeling and Simulation The total current density jz  x , y ,0, t  is thus expressed by ... Electrochimica Acta, Vol 25, No 7, (July 1980), pp 965-972, ISSN 0013-4686 216 Heat and Mass Transfer – Modeling and Simulation Aogaki, R (1995) Instability of Nonequilibrium Fluctuation in Electrochemical...

Ngày tải lên: 19/06/2014, 10:20

... effectiveness of initial training model of technology transfer from province HO in order to improve the clinical capacity for district hospital 3.2.1 Building a model of technology transfer and training ... reaching level B from 0-52.2%, the level C from 47.8- 100% - After training, reaching level A from 87.0 -100%, the level B from 0- 13.0%, and level C was 0% Thus, the level A increased from 0% to 87-100%, ... hospital beds per 10,000 people (excluding the bed kept at communal health stations/ ward) Since 2002, the number of hospital beds per 10,000 people has tended   20    to increase, from 16beds/10.000...

Ngày tải lên: 25/07/2014, 13:57

... Structure of the model The model was initially built for conifers, and was derived by Deleuze and Houllier [7] from the continuous formulation of carbon transport resistance in Thornley’s model [38, ... for trees from Moncel-sur-Seille and one disk per growth unit for trees from Amance THE REACTION-DIFFUSION MODEL 143 note x the vertical abscissa along the stem measured downwards from crown ... of r and a’ This model is an empirical function heuristically derived from a process-based analysis of carbon allocation It is very flexible and can describe profiles coming from suppressed as...

Ngày tải lên: 08/08/2014, 14:20

... been the most widely used animal model to study the pathogenetic mechanisms of pulmonary fibrosis However, the common BLM-induced pulmonary fibrotic model is derived from wild mouse and thus is unsuitable ... pAb was purchased from Santa Cruz Biotechnology (Cat sc-7870), rabbit anti-mouse/human E-cadherin pAb was purchased from Boster Company (Cat BA0475) GAPDH mAb was purchased from Chemicon (Cat ... peribronchial fibrosis model was purchased from Nipponkayaku (Tokyo, Japan) Primers were synthesized in Sangon (Shanghai, China) All chemicals for βgal staining were purchased from Jingmei Company...

Ngày tải lên: 12/08/2014, 16:20