Principles and Applications of Mass Transfer (eBook)

The Design of Separation Processes for Chemical and Biochemical Engineering
eBook Download: EPUB
2022 | 4. Auflage
656 Seiten
Wiley (Verlag)
978-1-119-78526-2 (ISBN)

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Principles and Applications of Mass Transfer -  Jaime Benitez
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Principles and Applications of Mass Transfer

Core textbook teaching mass transfer fundamentals and applications for the design of separation processes in chemical, biochemical, and environmental engineering

Principles and Applications of Mass Transfer teaches the subject of mass transfer fundamentals and their applications to the design of separation processes with enough depth of coverage to guarantee that students using the book will, at the end of the course, be able to specify preliminary designs of the most common separation process equipment.

Reflecting the growth of biochemical applications in the field of chemical engineering, the fourth edition expands biochemical coverage, including transient diffusion, environmental applications, electrophoresis, and bioseparations. Also new to the fourth edition is the integration of Python programs, which complement the Mathcad programs of the previous edition.

On the accompanying instructor's website, the online appendices contain a downloadable library of Python and Mathcad programs for the example problems in each chapter. A complete solution manual for all end-of-chapter problems, both in Mathcad and Python, is also provided.

Some of the topics covered in Principles and Applications of Mass Transfer include:

  • Molecular mass transfer, covering concentrations, velocities and fluxes, the Maxwell-Stefan relations, and Fick's first law for binary mixtures
  • The diffusion coefficient, covering diffusion coefficients for binary ideal gas systems, dilute liquids, and concentrated liquids
  • Convective mass transfer, covering mass-transfer coefficients, dimensional analysis, boundary layer theory, and mass- and heat-transfer analogies
  • Interphase mass transfer, covering diffusion between phases, material balances, and equilibrium-stage operations
  • Gas dispersed gas-liquid operations, covering sparged vessels, tray towers, diameter, and gas-pressure drop, and weeping and entrainment

Principles and Applications of Mass Transfer is an essential textbook for undergraduate chemical, biochemical, mechanical, and environmental engineering students taking a core course on Separation Processes or Mass Transfer Operations, along with mechanical engineers and mechanical engineering students starting to get involved in combined heat- and mass-transfer applications.

Jaime Benítez attended the School of Engineering of the University of Puerto Rico where he received a BS in Chemical Engineering in 1970 and a MS in Nuclear Engineering in 1972. He earned his PhD in Chemical and Environmental Engineering at Rensselaer Polytechnic Institute in 1976. That year, he joined the faculty of the Chemical Engineering Department of the University of Puerto Rico where he taught continuously until 2014. He is now an adjunct lecturer at the University of Florida at Gainesville.


Principles and Applications of Mass Transfer Core textbook teaching mass transfer fundamentals and applications for the design of separation processes in chemical, biochemical, and environmental engineering Principles and Applications of Mass Transfer teaches the subject of mass transfer fundamentals and their applications to the design of separation processes with enough depth of coverage to guarantee that students using the book will, at the end of the course, be able to specify preliminary designs of the most common separation process equipment. Reflecting the growth of biochemical applications in the field of chemical engineering, the fourth edition expands biochemical coverage, including transient diffusion, environmental applications, electrophoresis, and bioseparations. Also new to the fourth edition is the integration of Python programs, which complement the Mathcad programs of the previous edition. On the accompanying instructor s website, the online appendices contain a downloadable library of Python and Mathcad programs for the example problems in each chapter. A complete solution manual for all end-of-chapter problems, both in Mathcad and Python, is also provided. Some of the topics covered in Principles and Applications of Mass Transfer include: Molecular mass transfer, covering concentrations, velocities and fluxes, the Maxwell-Stefan relations, and Fick s first law for binary mixtures The diffusion coefficient, covering diffusion coefficients for binary ideal gas systems, dilute liquids, and concentrated liquids Convective mass transfer, covering mass-transfer coefficients, dimensional analysis, boundary layer theory, and mass- and heat-transfer analogies Interphase mass transfer, covering diffusion between phases, material balances, and equilibrium-stage operations Gas dispersed gas-liquid operations, covering sparged vessels, tray towers, diameter, and gas-pressure drop, and weeping and entrainment Principles and Applications of Mass Transfer is an essential textbook for undergraduate chemical, biochemical, mechanical, and environmental engineering students taking a core course on Separation Processes or Mass Transfer Operations, along with mechanical engineers and mechanical engineering students starting to get involved in combined heat- and mass-transfer applications.

Jaime Benítez attended the School of Engineering of the University of Puerto Rico where he received a BS in Chemical Engineering in 1970 and a MS in Nuclear Engineering in 1972. He earned his PhD in Chemical and Environmental Engineering at Rensselaer Polytechnic Institute in 1976. That year, he joined the faculty of the Chemical Engineering Department of the University of Puerto Rico where he taught continuously until 2014. He is now an adjunct lecturer at the University of Florida at Gainesville.

Nomenclature


LATIN LETTERS


A absorption factor; dimensionless.
A mass flow rate of species A; kg/s.
Aa active area of a sieve tray; m2.
Ad area taken by the downspout in a sieve tray; m2.
Ah area taken by the perforations on a sieve tray; m2.
AM membrane area; m2.
An net cross-section area between trays inside a tray column; m2.
At total cross-section area, m2.
a mass-transfer surface area per unit volume; m−1.
ah hydraulic, or effective, specific surface area of packing; m−1.
B mass flow rate of species B; kg/s.
B0 viscous flow parameter; m2.
c total molar concentration; mol/m3.
ci, Ci molar concentration of species i; mol/m3.
C total number of components in multicomponent distillation.
Cp specific heat at constant pressure; J/kg-K.
CS humid heat; J/kg-K.
CD drag coefficient; dimensionless.
Da Damkohler number for first-order reaction; dimensionless.
Dij Maxwell-Stefan diffusivity for pair i-j; m2/s.
Dij Fick diffusivity or diffusion coefficient for pair i-j; m2/s.
DK,i Knudsen diffusivity for component i; m2/s.
de equivalent diameter; m.
di driving force for mass diffusion of species i; m−1.
di inside diameter; m.
do outside diameter; m.
do perforation diameter in a sieve plate; m.
dp particle size; m.
dvs Sauter mean drop diameter defined in equation (7-48); m.
DM dimensional matrix.
D tube diameter; m.
D distillate flow rate; moles/s.
E fractional entrainment; liquid mass flow rate/gas mass flow rate.
E extract mass flow rate, kg/s.
Em mechanical efficiency of a motor-fan system; dimensionless.
Eo Eotvos number defined in equation (7-53); dimensionless.
EF extraction factor defined in equation (7-19); dimensionless.
EME Murphree stage efficiency in terms of extract composition.
EMG Murphree gas-phase tray efficiency; dimensionless.
EMGE Murphree gas-phase tray efficiency corrected for entrainment.
EO overall tray efficiency of a cascade; equilibrium trays/real trays.
EOG point gas-phase tray efficiency; dimensionless.
f12 proportionality coefficient in equation (1-21).
f friction factor; dimensionless.
f fractional approach to flooding velocity; dimensionless.
fext fractional extraction; dimensionless.
F mass-transfer coefficient; mol/m2-s.
F molar flow rate of the feed to a distillation column; mol/s.
F mass flow rate of the feed to a liquid extraction process; kg/s.
FRi,D fractional recovery of component i in the distillate; dimensionless.
FRi,w fractional recovery of component i in the residue; dimensionless.
FrL liquid Froude number; dimensionless.
Ga Galileo number; dimensionless.
GM superficial molar velocity; mol/m2-s.
GMx superficial liquid-phase molar velocity; mol/m2-s.
GMy superficial gas-phase molar velocity; mol/m2-s.
Gx superficial liquid-phase mass velocity; kg/m2-s.
Gy superficial gas-phase mass velocity; kg/m2-s.
GrD Grashof number for mass transfer; dimensionless.
GrH Grashof number for heat transfer; dimensionless.
Gz Graetz number; dimensionless.
g acceleration due to gravity; 9.8 m/s2.
gc dimensional conversion factor; 1 kg-m/N-s2.
H Henry’s law constant; atm, kPa, Pa.
H molar enthalpy; J/mol.
H height of mixing vessel; m.
H' enthalpy of gas-vapor mixture; J/kg.
HETS height equivalent to a theoretical stage in staged liquid extraction columns; m.
HK heavy-key component in multicomponent distillation.
ΔHs heat of solution; J/mol of solution.
HtL height of a liquid-phase transfer unit; m.
HtG height of a gas-phase transfer unit; m.
HtoG overall height of a gas-phase transfer unit; m.
HtoL overall height of a liquid-phase transfer unit; m.
h convective heat-transfer coefficient, W/m2-K.
hd dry-tray head loss; cm of liquid.
hi equivalent head of clear liquid on tray; cm of liquid.
hL specific liquid holdup; m3 holdup/m3 packed bed.
ht total head loss/tray; cm of liquid.
hw weir height; m.
hσ head loss due to surface tension; cm of liquid.
h2ϕ height of two-phase region on a tray; m.
i number of dimensionless groups needed to describe a situation.
jD Chilton-Colburn j-factor for mass transfer; dimensionless.
jH Chilton-Colburn j-factor for heat transfer; dimensionless.
ji mass diffusion flux of species i with respect to the mass-average velocity; kg/m2-s.
Ji molar diffusion flux of species i with respect to the molar-average velocity; mol/m2-s.
J0 Bessel function of the first kind and order zero; dimensionless.
J1 Bessel function of the first kind and order one; dimensionless.
K distribution coefficient; dimensionless.
K Krogh diffusion coefficient; cm3 O2/cm-s-torr.
K parameter in Langmuir adsorption isotherm; Pa−1.
KAB molar selectivity parameter in ion exchange; dimensionless.
KW wall factor in Billet-Schultes pressure-drop correlations; dimensionless.
k thermal conductivity, W/m-K.
kc convective mass-transfer coefficient for diffusion of A through stagnant B in dilute gas-phase solution with driving force in terms of molar concentrations; m/s.
k´c convective mass-transfer...

Erscheint lt. Verlag 19.10.2022
Sprache englisch
Themenwelt Naturwissenschaften Chemie
Technik
Schlagworte biochemical engineering • Biochemische Verfahrenstechnik • chemical engineering • Chemie • Chemische Verfahrenstechnik • Chemistry • Environmental Chemistry • Maschinenbau • mechanical engineering • Umweltchemie
ISBN-10 1-119-78526-X / 111978526X
ISBN-13 978-1-119-78526-2 / 9781119785262
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