unit operation of chemical engineering 6th ed, solutions manual

This sixth edition of the text on the unit operations of chemical engineering hasbeen extensively revised and updated, with much new material and considerablecondensation of some section

This sixth edition of the text on the unit operations of chemical engineering hasbeen extensively revised and updated, with much new material and considerablecondensation of some sections Its basic structure and general level of treatment,however, remain unchanged It is an introductory text, written for undergraduatestudents in their junior or senior years who have completed the usual courses inmathematics, physics, chemistry, and an introduction to chemical engineering Anelementary knowledge of material and energy balances and of thermodynamic prin-ciples is assumed.

Separate chapters are devoted to each of the principal unit operations, groupedinto four sections: fluid mechanics, heat transfer, mass transfer and equilibriumstages, and operations involving particulate solids One-semester or one-quartercourses may be based on any of these sections or combinations of them The order

of the first 16 chapters has not been changed; later ones, dealing with mass transferand operations involving solids, have been rearranged in a more logical order.Nearly all equations have been written for SI units, and the Newton’s law con-

version factor g chas been eliminated except in the few instances where it must be

included Symbols for dimensionless groups have been changed to Re for NRe, for

example, Pr for NPr, and so forth Many new examples and problems have beenadded, some reflecting the importance of biochemical engineering processes Mate-rial on handling, mixing, and grinding particulate solids has been greatly condensedand dealt with in a single chapter The number of appendixes is reduced from 22

to 19

Derivations of the differential equations for continuity and momentum ances, leading to the Navier-Stokes equation, have been added, as well as the dif-ferential forms of Fourier’s law and Fick’s law, emphasizing the analogies amongmomentum, heat, and mass transfer The chapter on adsorption has been expanded

bal-to include new material on chromabal-tography and ion exchange, and renamed bed Separations.” Other new material has been added on viscoelastic fluids, laminarflow in annuli, drag coefficients, affinity laws for pumps, high-efficiency agitatorsand motionless mixers, plate-type heat exchangers, boiling by submerged tube bun-dles, cooling towers, aqueous phase extraction, cross-flow filtration, and manyother topics

“Fixed-Many of the problems at the ends of the chapters are new or revised Most areexpressed in SI units Nearly all the problems can be solved with the aid of a pocketcalculator; for a few, a computer solution is preferable

McGraw-Hill and the authors thank Dr N T Obot for his many suggestions garding fluid mechanics and heat transfer, and Professor Charles H Gooding ofClemson University for his detailed and helpful review of the manuscript

re-Julian C Smith Peter Harriott

P R E FA C E

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iii

SECTION II Fluid Mechanics

4 Basic Equations of Fluid Flow 67

Differential Momentum Balance; Equations of Motion 72

Friction from Changes in Velocity or Direction 117

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Positive-Displacement Pumps / Centrifugal Pumps

Fans / Blowers and Compressors / Comparison of Devices for Moving Fluids

Full-Bore Meters / Insertion Meters

SECTION III Heat Transfer and Its Applications

Overall Heat-Transfer Coefficient / Individual Heat-Transfer Coefficients

C O N T E N T S ix mcca_fm.qxd 8/3/00 8:42 AM Page ix

12 Heat Transfer to Fluids Without Phase Change 336

Heat Transfer by Forced Convection in Laminar Flow 339Heat Transfer by Forced Convection in Turbulent Flow 346

Transfer by Turbulent Eddies and Analogy Between Transfer

of Momentum and Heat

Heat Transfer in Transition Region Between Laminar

Heating and Cooling of Fluids in Forced Convection

Combined Heat Transfer by Conduction-Convection

Condensers and Vaporizers 456

Evaporator Capacity / Evaporator Economy

SECTION IV Mass Transfer and Its Applications

17 Principles of Diffusion and Mass Transfer

Absorption in Plate Columns

C O N T E N T S xi mcca_fm.qxd 8/3/00 8:42 AM Page xi

Equilibrium-Stage Calculations for Multicomponent Systems

Material Balances in Plate Columns / Number of Ideal Plates;

McCabe–Thiele Method

Theory of Plate Efficiency

Phase Equilibria in Multicomponent Distillation 713Flash Distillation of Multicomponent Mixtures 717 xii C O N T E N T S

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Fractionation of Multicomponent Mixtures 718

Extraction Equipment / Principles of Extraction

Supercritical Fluid Extraction

Equilibria / Mass-Transfer Rates / Operation of Ion Exchangers

C O N T E N T S xiii mcca_fm.qxd 8/3/00 8:42 AM Page xiii

SECTION V Operations Involving Particulate Solids

Storage and Conveying of Solids

Liquid Clarification / Gas Cleaning / Principles of Clarification

Type of Membranes / Permeate Flux for Ultrafiltration / Concentration Polarization / Microfiltration

Appendix 1 Conversion Factors and Constants of Nature 1063

Appendix 3 Dimensions, Capacities, and Weights

Appendix 4 Condenser and Heat-Exchanger Tube Data 1069

Appendix 7 Properties of Saturated Steam and Water 1072

Appendix 10 Thermal Conductivities of Metals 1079Appendix 11 Thermal Conductivities of Various Solids and

Appendix 15 Specific Heats of Liquids 1085Appendix 16 Prandtl Numbers for Gases at 1 atm and 100°C 1086

Appendix 18 Diffusivities and Schmidt Numbers for Gases

Appendix 19 Collision Integral and Lennard-Jones

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