... ¯ ¯w Fig Solubility limits Xl,s and Xg,s and actual mass fractions Xla and Xg for two different ¨ time steps (0.0035 s and 0.01 s) and different Damkohler numbers Mass and Heat Transfer During ... interfaces (left hand side) and heat transfer across fluid–fluid as well as fluid–solid interfaces (right hand side) 14 14 Mass Transfer Mass Transfer in Multiphase SystemsanditsApplications also ... wetting and non-wetting phase (left hand side) and between non-wetting and solid phase (right hand side) after 17s 17 17 Mass and Heat Transfer During Two-Phase Flow in Porous Media - Theory and...
... changes and corresponding final stresses appropriate for the future use of a structure The deeper understanding of decissive 52 Mass Transfer Mass Transfer in Multiphase SystemsanditsApplications ... approximations, and defining the velocity components u and v in terms of stream function ψ as: u = ∂ψ/∂y and v = −∂ψ/∂x, the pressure term may be eliminated between Eqs (17) and (18) and one obtains: ... rate qα , describe sources or sinks and can be defined by the following relation (Chen, 2007), 16 38 Mass Transfer Mass Transfer in Multiphase SystemsanditsApplications q = ∑ ρ j q j δ( x − x...
... both the drop interface and the boundary between the drop and a solid substrate Disappearance of the interface in the fluid 90 Mass Transfer in Multiphase SystemsanditsApplications system makes ... Mass Transfer in Multiphase SystemsanditsApplicationsand density ρp = 2600 kg/m3 The measurements were conducted under various aeration rates, impeller speeds, and solid particles concentration ... from the needle (Fig 11,a) and only after this the needle forms a drop of a binary mixture with a clear-cut interphase 78 Mass Transfer in Multiphase SystemsanditsApplications boundary (Fig...
... challenge and creates a 138 138 Mass Transfer in Multiphase SystemsanditsApplications Mass Transfer in Multiphase SystemsanditsApplications major interest in many industrial applications ... Henry's law: 140 140 Mass Transfer in Multiphase SystemsanditsApplications Mass Transfer in Multiphase SystemsanditsApplications * * PA = HC A and C A = PA H (4) Where H is the Henry’s constant ... phase g is the gravity acceleration and u R = uG − u L 146 146 Mass Transfer in Multiphase SystemsanditsApplications Mass Transfer in Multiphase SystemsanditsApplications is the relative velocity...
... the numerical simulation On the other hand 152 152 Mass Transfer in Multiphase SystemsanditsApplications Mass Transfer in Multiphase SystemsanditsApplications Conclusion Many industrial ... velocity and turbulence measurements", Int J Heat and Mass Transfer, vol 36 (4) pp 1049-1060 154 154 Mass Transfer in Multiphase SystemsanditsApplications Mass Transfer in Multiphase Systemsandits ... 150 150 Mass Transfer in Multiphase SystemsanditsApplications Mass Transfer in Multiphase SystemsanditsApplications model On the basis of this turbulent viscosity...
... of mercaptans and exits as an extract enriched in the said mercaptans Samples of feed and refined phase are 220 Mass Transfer in Multiphase SystemsanditsApplications collected and the mercaptans ... extraction with and without a chemical reaction and the dimensioning of the extractors with original 208 Mass Transfer in Multiphase SystemsanditsApplications experimental work and interpretations ... 17.7°C, ambient air humidity = 41% and temperature = 18.2 °C, inlet airflow humidity φ0 = 16% and temperature T0 = 45°C 200 Mass Transfer in Multiphase SystemsanditsApplications 20.5 20 19.5 Numérique...
... formation and decomposition of an amorphous or intermetallic phase was observed during prolonged 238 Mass Transfer in Multiphase SystemsanditsApplications ball milling in certain systems (El-Eskandarany ... Transfer in Multiphase SystemsanditsApplications advantage of MA is cost efficiency since the alloys are produced without furnaces and other high-temperature equipment while its main drawback is ... species in phases and are lattice atoms A and B, vacancies v and interstitial atoms A and B, which are denoted as Ai and Bi Since N0 = NB + NA + Nv, then cB + cA + cv = 1, and thus the overall...
... Transfer in Multiphase SystemsanditsApplications chapter Liquid flows down the packed bed, and vapor upflows to contact with liquid phase in the countercurrent The vapor was cooled and condensed in ... resistance during the second and third drying periods It is sufficient to combine both the internal and external 304 Mass Transfer in Multiphase SystemsanditsApplications resistances, expressing ... the falling-film system Both of adding n- 280 Mass Transfer in Multiphase SystemsanditsApplications octanol vapor and adding saturated n-octanol to the aqueous solution of lithium bromide...
... Transfer in Multiphase SystemsanditsApplications temperature and pressure conditions imposed to the paper web/felt sandwich steam may be generated inside the paper web and ultimately induce ... Multiphase SystemsanditsApplications (A) Fluid Solid Δz0 (α.A) Solid Fluid Δz α.A A Fig Schematic diagram of the compression of a deformable porous medium (Δz0 and Δz are the initial and final ... solid, liquid and gas (air and water vapour) in thermodynamic equilibrium; and three main heat and mass transfer mechanisms are assumed: heat conduction, convective heat and mass transfer, and phase...
... Transfer in Multiphase SystemsanditsApplications of the oxide scale formed under a PO2 of 10-14 Pa is relatively smooth andits thickness is about micrometer On the other hand, the higher the ... Multiphase SystemsanditsApplications Degterov S & Pelton A.D (1996) Critical Evaluation and Optimization of the Thermodynamic Properties and Phase Diagrams of the CrO-Cr2O3, CrO-Cr2O3Al2O3, and CrO-Cr2O3-CaO ... Multiphase SystemsanditsApplications concentrations of these elements are, and monolithic alpha-(Al,Cr)2O3 scale will certainly form It is expected that the adherence between the topcoat and bond...
... D2 and D3) 420 Mass Transfer in Multiphase SystemsanditsApplications tap water aerated with gas spargers D1 and D4 can also be predicted satisfactorily by means of Eq (25) One of the merits ... coalescent systems On the other hand, kLa values observed in the presence of surface active agents can be higher or lower than those corresponding to 398 Mass Transfer in Multiphase SystemsanditsApplications ... Multiphase SystemsanditsApplications Figure shows, for ethanol (96 %) as an example, that the gas distributor type is not so important The same holds for 1−butanol, decalin and toluene (Figs 3–5) and...
... Transfer in Multiphase SystemsanditsApplications conditioning units are horizontal (predominantly) and vertical (sometimes), Venturi tubes are horizontal, vertical and inclined at unconditioned ... k2 k3 k4 k5 k6 T Mass Transfer in Multiphase SystemsanditsApplications Value Variable [TG]d/D or [TG] ρTG/MTG Variable Variable Description and units Literature Triglyceride concentration in ... transfercontrolled region is short and this effect is not significant (Fig 5) 442 Mass Transfer in Multiphase SystemsanditsApplications Fig The effect of temperature and time on the overall conversion...
... Temperature and concentration profiles of the combustion wave in case of equal heat capacities of the flows of condensed and gaseous phases 486 Mass Transfer in Multiphase SystemsanditsApplications ... reagents concentration 490 Mass Transfer in Multiphase SystemsanditsApplications Fig Thermodynamic equilibrium in systems containing CaCO3 (a) and CuO (b) In this system mass transfer may be too ... Gulf of Thailand where total gross production 500 Mass Transfer in Multiphase SystemsanditsApplications per day has been reported around 680,000 barrels of oil equivalent [DMF, 2010] and hundreds...
... in Multiphase SystemsanditsApplications (a) (b) (c) Fig Chemical structures of the organic extractants: (a) Aliquat 336, (b) Cyanex 301, and (c) Cyanex 923 (Mohapatra and Manchanda, 2008) 4.1.1 ... feed-membrane interface according to its concentration gradient, and again TOA is reacted with HgCl42− ions from the feed 514 Mass Transfer in Multiphase SystemsanditsApplications Thus, the transport ... Thailand Research Fund (TRF), the Office of Small and Medium Enterprises Promotion (OSMEP) and Chulalongkorn University for granting research funds; 520 Mass Transfer in Multiphase Systemsand its...
... Transfer in Multiphase SystemsanditsApplications purification (Charton et al, 1999) Generally such systems share the common advantages of being environmentally benign, compact and flexible for various ... and the gas phase, which is also termed “local thermal equilibrium” (Kuznetzov and Vafai, 1995) The common temperature is defined as Tb here 552 Mass Transfer in Multiphase SystemsanditsApplications ... Multiphase SystemsanditsApplications Next, the physical properties should be set according to the positions of the grids Porosity and heat capacity are scalar quantities defined at the nodes and...
... Multiphase SystemsanditsApplications for recognition by other cells and immunological behaviour, the initiation of intracellular responses to external molecules (like pituitary hormones, prostaglandins, ... Transfer in Multiphase SystemsanditsApplicationsand Higuchi, 1974, Winne, 1978, Winne, 1979, Amidon et al., 1980) In each model, assumptions must be made regarding the convection and diffusion conditions ... human and rat models directly using a larger number of model 604 Mass Transfer in Multiphase SystemsanditsApplications drugs with a broad range of physicochemical properties for both high and...
... Multiphase SystemsanditsApplications difficulty, with regards to its experimental validation, more precisely with the measurement of moisture content and temperature within both the solid phase and ... μ ⎝ ⎠ Nu = h dp , Kg Nup = h ⋅ dp ⋅ ϕ ⋅ ε Kg ⋅ ( − ε ) and 638 Mass Transfer in Multiphase SystemsanditsApplications Simultaneous heat and mass transfer in drying of deformable porous media ... description of 644 Mass Transfer in Multiphase SystemsanditsApplications drying phenomena Bed contraction and variation in properties such as bulk density and porosity cannot be ignored from the...
... i=2,3,…,N and j=S,T,O (36) 688 Mass Transfer in Multiphase SystemsanditsApplicationsand κ ij = ξij− ( Φ Ai ΔY ) + κ ij− zi for i=2,3,…,N and j=S,T,O (37) The starting values of ξ1j and κ 1j ... ∞ and βδo → ∞ For that case the concentration distribution and the inlet mass transfer rate can be expressed by eqs 48 and 49, respectively 692 Mass Transfer in Multiphase SystemsanditsApplications ... (98b) and with χ ij = (λ e i λi ΔY − λi eλi ΔY λi − λi )− Dmi λi eλi ΔY Dmi λi − χ ij− / ϕij− with i=2,3,…,N and j=T,S,O (99) 704 Mass Transfer in Multiphase SystemsanditsApplicationsand ϕij...
... and axial dispersion in the riser and downcomer due to turbulence and differential velocities of the gas and liquid phases (Choi et al 1996) 722 Mass Transfer in Multiphase SystemsanditsApplications ... experiments were carried out in triplicate and the results that are presented are an average 720 Mass Transfer in Multiphase SystemsanditsApplications 2.5 Results and discussion Gas holdup The importance ... chemical engineering applied to biological systems 718 Mass Transfer in Multiphase SystemsanditsApplications Case I Hydrodynamics, mass transfer and rheological studies of gibberellic acid...
... gibberellic acid and pigment in batch and semi-continuous cultures Appl Microbiol Biotechnol 28:537-542 760 Mass Transfer in Multiphase SystemsanditsApplications Metz, B., Kossen, N W F and van Suijdam, ... parenthesis are standard deviations of five replicates Table I Size and density of Gibberella fujikuroi pellets during fermentation 754 Mass Transfer in Multiphase SystemsanditsApplications those ... contribution of intrapellet convection (Parulekar and Lim,1985) The extra-Peclet number Peout is defined by: 752 Mass Transfer in Multiphase SystemsanditsApplications (33) ⎛ NSh ⎞ ⎜ 0.6245 ⎟ ⎟ ⎝ ⎠...