other mass transfer operations
principles and modern applications of mass transfer operations, second edition
Ngày tải lên :
02/04/2014, 15:44
... 103 2.5 MASS- AND HEAT -TRANSFER ANALOGIES 110 2.6 CONVECTIVE MASS- TRANSFER CORRELATIONS 119 2.6.1 Mass- Transfer Coefficients for Flat Plates 2.6.2 Mass- Transfer Coefficients ... of transport, molecular mass transfer and convective mass transfer, are analogous to conduction heat transfer and convective heat transfer Each of these modes of mass transfer will be described ... Contents 2.6.3 Mass- Transfer Coefficients for Single Cylinders 2.6.4 Turbulent Flow in Circular Pipes 2.6.5 Mass Transfer in Packed and Fluidized Beds 2.6.6 Mass Transfer in...
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MÔ HìNH HOá QUá TRìNH TRAO ĐổI NHIệT ẩM TRONG MáY ấP TRứNG GIA CầM Modeling of heat and mass transfer in chicken egg incubators
Ngày tải lên :
28/08/2013, 08:31
... 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 in High Moisture ... 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...
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Endoreversible four-mass-reservoir chemical pump with diffusive mass transfer law
Ngày tải lên :
05/09/2013, 15:28
... pumping and the COP of four -mass- reservoir chemical pump with the diffusive mass transfer law and linear mass transfer law are shown in Figure The curve with diffusive mass transfer law is shown by ... performance with linear mass transfer law Wu et al [32] studied the performance of a three -mass- reservoir chemical pump with the irreversibility of mass transfer and mass leak Xia et al [33] ... irreversible four -mass- reservoir chemical pump model considering the effects of mass transfer, mass leakage and internal irreversibility, and studied its performance with linear mass transfer law...
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Natural convection unsteady magnetohydrodynamic mass transfer flow past an infinite vertical porous plate in presence of suction and heat sink
Ngày tải lên :
05/09/2013, 15:28
... flow past an infinite vertical plate with constant suction and mass transfer Hossain and Begum [5] estimated the effect of mass transfer and free convection on the flow past a vertical plate ... layer flow with suction and mass transfer in a porous medium Pop et al [7] reported the conjugate MHD flow past a flat plate Singh [8] discussed the effect of mass transfer on free convection ... specific heat at constant pressure, D is the molecular mass diffusivity, Gr is the Grashof number for heat transfer, Gc is the Grashof number for mass transfer, M is the magnetic parameter, Pr is the...
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Tài liệu MASS TRANSFER IN CHEMICAL ENGINEERING PROCESSES pdf
Ngày tải lên :
16/02/2014, 19:20
... approaches in solving mass transfer problems for different practical applications: measurements of the diffusion coefficients, estimation of the mass transfer coefficients, mass transfer limitation ... penetrant is moved from one part of the system to another as results of random molecular motion The fundamental concepts of the mass transfer are 18 Mass Transfer in Chemical Engineering Processes comparable ... related to the mass transfer Practically, all textbooks devoted to the separation processes or reaction engineering contain chapters describing the basic principles of the mass (and heat) transfer...
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CONVECTIVE HEAT AND MASS TRANSFER ppt
Ngày tải lên :
30/03/2014, 19:20
... ) Blowing parameter Mass- flux-based heat transfer driving force Molar-flux-based heat transfer driving force Mass- flux-based mass transfer driving force Molar-flux-based mass transfer driving force ... Fundamentals of Diffusive Mass Transfer 1.3.1 Species Mass Conservation 1.3.2 Diffusive Mass Flux and Fick’s Law 1.3.3 Species Mass Conservation When Fick’s Law Applies 1.3.4 Other Types of Diffusion ... Turbulence mixing length for heat transfer (m) Molar mass (kg/kmol) Mach number Mass fraction; dimensionless constant Mass (kg); mass of a single molecule (kg) Mass flux (kg/m2 s) Ratio between...
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Heat and Mass Transfer in Porous Media pdf
Ngày tải lên :
31/03/2014, 16:20
... On Analogy Between Convective Heat and Mass Transfer Processes in a Porous Medium and a Hele-Shaw Cell A V Gorin 139 Heat and Mass Transfer in Porous Materials with Complex ... temperature to constant mass From the measured mass changes, the equilibrium moisture content (u), at each test condition, could be calculated and the sorption/desorption isotherm drawn (see Fig ... Altenbach For further volumes: http://www.springer.com/series/8611 J M P Q Delgado Editor Heat and Mass Transfer in Porous Media 123 J M P Q Delgado Laboratorio de Fisica das Construccoes Faculdade...
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heat and mass transfer
Ngày tải lên :
02/04/2014, 15:27
... mixing length mass modulus, M = a∆t/∆x2 (hemispherical total) emissive power spectral emissive power mass flow rate molecular mass, molar mass optical mass relative optical mass mass flux amount ... β0 ˙ Γ heat transfer coefficient mean heat transfer coefficient mass transfer coefficient mean mass transfer coefficient thermal expansion coefficient polar angle, zenith angle base angle mass production ... heat and mass transfer problems can be solved using the balance equations and the heat and mass transfer coefficients, without requiring too deep a knowledge of the theory of heat and mass transfer...
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mass transfer principles and applications
Ngày tải lên :
02/04/2014, 15:43
... maximum rate of mass transfer obtainable or the minimum time required to achieve the transfer of a given mass to or from a flat surface Mass transfer by molecular diffusion resides at the other end ... The Film Concept and the Mass Transfer Coefficient 12 1.3 Units of the Potential and of the Mass Transfer Coefficient .16 Illustration 1.4: Conversion of Mass Transfer Coefficients 17 1.4 ... Turbulent Flow Mass Transfer Coefficients Using Dimensional Analysis 169 Illustration 5.4: Estimation of the Mass Transfer Coefficient kY for the Drying of Plastic Sheets 172 5.4 Mass Transfer...
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multicomponent mass transfer
Ngày tải lên :
02/04/2014, 15:43
... II INTERPHASE TRANSFER 139 141 Mass Transfer Coefficients 7.1 Definition of Mass Transfer Coefficients, 141 7.1.1 Binary Mass Transfer Coefficients, 141 7.1.2 Multicomponent Mass Transfer Coefficients, ... Mass and Energy Transfer 11.1 Balance Equations for Simultaneous Heat and Mass Transfer, 266 11.2 Constitutive Relations for Simultaneous Heat and Mass Transfer, 267 11.3 Definition of Heat Transfer ... mass transfer coefficients (Section 5.6) [s" ] Overall mass transfer coefficient in a binary mixture [m/s] Matrix of multicomponent mass transfer coefficients [m/s] Pseudobinary (effective) mass...
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fundamentals of heat and mass transfer
Ngày tải lên :
02/04/2014, 15:51
... Rt,f mass, kg rate of transfer of mass for species, i, kg/s rate of increase of mass of species i due to chemical reactions, kg/s rate at which mass enters a control volume, kg/s rate at which mass ... velocity, kmol/s ⅐ m2 diffusive mass flux of species i relative to the mixture mass average velocity, kg/s ⅐ m2 Colburn j factor for heat transfer Colburn j factor for mass transfer thermal conductivity, ... Convection Heat and Mass Transfer 457 The Sphere Flow Across Banks of Tubes Impinging Jets 7.7.1 Hydrodynamic and Geometric Considerations 477 7.7.2 Convection Heat and Mass Transfer 478 Packed...
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fundamentals of momentum, heat, and mass transfer 5th edition
Ngày tải lên :
02/04/2014, 15:51
... Diffusion 26.1 26.2 26.3 26.4 26.5 27 Molecular Mass Transfer The Diffusion Coefficient Convective Mass Transfer Closure 429 398 Differential Equations of Mass Transfer 25.1 25.2 25.3 25.4 26 Nature of ... Convective Mass Transfer 28.1 28.2 28.3 28.4 28.5 28.6 28.7 28.8 29 Equilibrium 551 Two-Resistance Theory Closure 563 569 Mass Transfer to Plates, Spheres, and Cylinders 569 Mass Transfer Involving ... Mass Transfer Involving Flow Through Pipes 580 Mass Transfer in Wetted-Wall Columns 581 Mass Transfer in Packed and Fluidized Beds 584 Gas-Liquid Mass Transfer in Stirred Tanks 585 Capacity Coefficients...
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incropera fundamentals of heat and mass transfer
Ngày tải lên :
02/04/2014, 15:52
... Steady-state conditions, (2) Negligible heat transfer from sides and bottom, (3) Chip is at a uniform temperature (isothermal), (4) Negligible heat transfer by radiation in air ANALYSIS: All of ... Steady-state conditions, (2) Negligible heat transfer from the wire by natural convection or radiation ANALYSIS: If all of the electric energy is transferred by convection to the air, the following ... ASSUMPTIONS: (1) Steady-state conditions, (2) All of the electrical power is transferred to the fluid by convection, (3) Negligible heat transfer from ends ANALYSIS: With P = qconv, Newton’s law of cooling...
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momentum, heat, and mass transfer fundamentals
Ngày tải lên :
02/04/2014, 15:53
... exchangers MASS TRANSFER MODELS Table 8.2.3-1 Equivalent forms of Fick's Law 8.3 Convective Mass Transfer Models Height of transfer unit models 8.7 Design of Mass Transfer Columns 8.8 Mass Transfer ... Table of Contents Mass transfer in flow in pipes Mass transfer from spheres, drops, and bubbles Example 8.4.1-2 Comparison of mars transfer coeffxient models Example 8.4.1-3 Mass transfer coefficient ... sphere Packedbeds Height of transfer unit models 8.4.2 Dimensional analysis of mass transfer by convection 8.5 Overall Mass Transfer Coefficients Figure 8.5-1 Mass transfer concentrations Figure...
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Fundementals of heat and mass transfer kotandaraman
Ngày tải lên :
08/04/2014, 10:55
... Preface to the Third Edition AN OVERVIEW OF HEAT TRANSFER 1–25 1.0 Introduction 1.1 Heat Transfer 1.2 Modes of Heat Transfer 1.3 Combined Modes of Heat Transfer 1.4 Dimensions and Units 10 1.5 Closure ... Objective Questions 648 Exercise Problems 650 14 MASS TRANSFER 14.0 14.1 14.2 14.3 14.4 14.5 14.6 Introduction 656 Properties of Mixture 656 Diffusion Mass Transfer 657 Fick’s Law of Diffusion 657 Equimolal ... Unidirectional Diffusion 661 14.7 Unsteady Diffusion 661 14.8 Convective Mass Transfer 662 14.9 Similarity Between Heat and Mass Transfer 664 Solved Problems 664 Exercise Problems 680 Fill in the Blanks...
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Mass Transfer in Chemical Engineering Processes Part 1 ppt
Ngày tải lên :
18/06/2014, 22:20
... approaches in solving mass transfer problems for different practical applications: measurements of the diffusion coefficients, estimation of the mass transfer coefficients, mass transfer limitation ... Chapter 13 Mass Transfer Related to Heterogeneous Combustion of Solid Carbon in the Forward Stagnation Region - Part - Combustion Rate in Special Environments 283 Atsushi Makino Preface Mass transfer ... related to the mass transfer Practically, all textbooks devoted to the separation processes or reaction engineering contain chapters describing the basic principles of the mass (and heat) transfer...
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Mass Transfer in Chemical Engineering Processes Part 2 pdf
Ngày tải lên :
18/06/2014, 22:20
... penetrant is moved from one part of the system to another as results of random molecular motion The fundamental concepts of the mass transfer are 18 Mass Transfer in Chemical Engineering Processes comparable ... Diffusion layer Support Fig Schematic presentation of mass transfer through the interface between polymer solution and nonsolvent bath Such a mass transfer process requires a consideration based on ... mobile component exists for mass transfer; more details for Gibbs free energy of multi-components system are documented in literatures (Karimi, 2005, Boom, 1994) 5.1 Mass transfer paths Polymer membrane...
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Mass Transfer in Chemical Engineering Processes Part 3 docx
Ngày tải lên :
18/06/2014, 22:20
... surface used for mass transfer P – pressure of the system G – mass flow of the phase GL – liquid mass flow GV – vapor mass flow G - V – gas or vapor rate L – liquid rate M – molecular mass ML – molecular ... b) presented a new model to predict the global mass transfer unit In this method, the transfer units are expressed by the liquid and vapor mass transfer coefficients: HV GV kV aW P MV ... gC (26) 48 Mass Transfer in Chemical Engineering Processes ReV GV aP V (27) Recently, with the emergence of more modern packing, other correlations to predict the rate of mass transfer in...
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Mass Transfer in Chemical Engineering Processes Part 4 pot
Ngày tải lên :
18/06/2014, 22:20
... diameter (m) desiccant mass fraction heat transfer coefficient (KW/m2) convective mass transfer coefficient (kg/m2s) enthalpy of air (kJ/kg) length of the wheel (m) air mass flow rate (kg/s) mw ... From a mass- transfer capabilities point of view, mass- transfer models still lack robustness and are hardly included in the current available commercial software The physics behind these transfer ... (2004) Liquid-side mass- transfer resistance of strucutured packings Industrial & Engineering Chemistry Research, v 43, 22, pp 7113 Nawrocki, P A., Xu, Z P (1991) Chuang, K T., Mass transfer in structured...
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