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| 內容簡介： |
本书是在美国著名教材《Unit 0peraUons of Chemical Engineering》的基础上，按照我国化工原理教学大纲要求改编而成的，重点介绍化工单元操作的基本原理、典型设备结构特性及其计算。根据知识点之间的关系，本书在内容编排上力求逻辑严谨，同时兼顾工程实用性。
本书主要内容包括：流体流动、流体输送、非均相体系的流动和非均相混合物的分离、传热、蒸发、扩散原理及相间质量传递、平衡关系和平衡级、气体吸收、蒸馏，浸提和萃取、物料的干燥、板式塔和填料塔的设计等，每章末均附有习题。
本书可作为高等院校化学工程与工艺专业及制药工程、生物工程。过程装备与控制、环境工程、食品与轻化工等相关专业的化工原理双语教材，也可作为外资企业的培训教材，及相关科学研究人员、企业管理者和技术人员的参考书。
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| 目錄：
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Introduction Definitions and Principles1
0.1Unit Operations1
0.2Unit Systems2
0.2.1Physical Quantities2
0.2.2SI Units3
0.2.3CGS Units6
0.2.4FPS Engineering Units7
0.2.5Gas Constant8
0.2.6Conversion of Units9
0.2.7Units and Equations10
0.3Dimensional Analysis12
Problems14
Chapter 1Fluid Flow15
1.1Fluid Statics and Its Application15
1.1.1Nature of Fluids15
1.1.2Hydrostatic Equilibrium16
1.1.3Applications of Fluid Statics17
1.2Fluid Flow Phenomena19
1.2.1Newton’s Law and Viscosity
of Fluids20
1.2.2Rheological Properties of Fluids23
1.2.3Types of Fluid Flow and Reynolds
Number25
1.2.4Boundary Layers29
1.3Basic Equations of Fluid Flow33
1.3.1Measures of Flow34
1.3.2Mass Balance in a Flowing Fluid;
Continuity35
1.3.3Overall Energy Balance for Steady-
state Flow System37
1.3.4Overall Mechanical Energy Balance
for Steady-state Flow System39
1.3.5Discussion on the Overall Mechanical
Energy Balance Equation40
1.3.6Macroscopic Momentum Balances43
1.4Incompressible Flow in Pipes and Channels47
1.4.1Shear Stress and Skin Friction in
Pipes47
1.4.2Laminar Flow in Pipes and
Channels50
1.4.3Turbulent Flow in Pipes and
Channels52
1.4.4Friction from Changes in Velocity or
Direction56
1.5Pipe Flow Systems62
1.5.1Single Pipes62
1.5.2Multiple Pipe Systems64
1.6Metering of Fluids66
1.6.1Insertion Meters67
1.6.2Full-Bore Meters69
Problems76
Chapter 2Transportation of Fluids82
2.1Pipe, Fittings, and Valves82
2.1.1Pipe and Tubing82
2.1.2Valves86
2.2Pumps88
2.2.1Developed Head89
2.2.2Suction Lift and Cavitation of
Pumps91
2.2.3Positive-Displacement Pumps93
2.2.4Centrifugal Pumps95
2.2.5Multistage Centrifugal Pumps109
2.2.6Pump Priming109
2.2.7Pump Selection110
2.3Fans, Blowers, and Compressors111
2.3.1Fans111
2.3.2Blowers and Compressors113
2.3.3Vacuum pumps118
2.3.4Comparison of Devices for Moving
Fluids119
Problems120
Chapter 3Heterogeneous Flow and
Separation124
3.1Flow Past Immersed Objects124
3.1.1Drag and Drag Coefficients124
3.1.2Flow through Beds of Solids128
3.2Motion of Particles through Fluids131
3.3Settling Separation of the Solids from
Gases138
3.3.1Gravitational Settling Processes138
3.3.2Centrifugal Settling Processes139
3.4Filtration Fundamentals140
3.4.1Introduction140
3.4.2Flow Rate-Pressure Drop
Relationships145
3.4.3Filtration Operations-Basic
Equations148
3.4.4Constant Pressure Filtration149
3.4.5Constant Rate Filtration151
3.4.6Constant Rate Followed by Constant
Pressure Operation151
3.4.7Vacuum Filtration—Drum Continuous
Filtration153
3.4.8Washing Filter Cakes154
3.5Introduction to Fluidization156
Problems157
Chapter 4Heat Transfer and Its Applications161
4.1Introduction161
4.2Heat Transfer by Conduction163
4.2.1Basic Law of Conduction163
4.2.2Steady-State Conduction165
4.3Principles of Heat Flow in Fluids169
4.3.1Typical Heat-Exchange Equipment170
4.3.2Energy Balances172
4.3.3Heat Flux and Heat-Transfer
Coefficients174
4.4Heat Transfer to Fluids without Phase
Change184
4.4.1Boundary Layers184
4.4.2Heat Transfer by Forced Convection
in Laminar Flow187
4.4.3Heat Transfer by Forced Convection
in Turbulent Flow191
4.4.4Heat Transfer in Transition Region
between Laminar and Turbulent
Flow196
4.4.5Heating and Cooling of Fluid in
Forced Convection Outside Tubes197
4.4.6Natural Convection198
4.5Heat Transfer to Fluids with Phase Change201
4.5.1Heat Transfer from Condensing
Vapors201
4.5.2Heat Transfer to Boiling Liquids209
4.6Radiation Heat Transfer213
4.6.1Emission of Radiation214
4.6.2Absorption of Radiation by Opaque
Solids217
4.6.3Radiation between Surfaces219
4.7Heat-Exchange Equipment224
4.7.1Shell-and-Tube Heat Exchangers225
4.7.2Plate-Type Exchangers235
4.7.3Extended-Surface Equipment237
4.7.4Condensers238
Problems240
Chapter 5Evaporation245
5.1Summarize245
5.1.1Single-and Multiple-Effect
Operation245
5.1.2Vacuum Evaporation246
5.1.3Liquid Characteristics247
5.2Evaporation Equipment247
5.2.1Circulation Evaporators248
5.2.2Once-Through Evaporators250
5.2.3Choice of the Evaporators252
5.3Single-Effect Evaporation252
5.3.1Evaporator Capacity252
5.3.2Boiling-Point Elevation and
Dühring’s Rule253
5.3.3Effect of Liquid Head and Friction
on Temperature Drop254
5.4Calculation Methods for Single-Effect
Evaporator255
5.4.1Methods of Operation of ?Evaporators255
5.4.2Material Balances for Single-Effect
Evaporator256
5.4.3Enthalpy Heat Balances for
Single-Effect Evaporator257
5.4.4Heat-Transfer Coefficients259
5.4.5Single-Effect Calculations260
5.5Multiple-Effect Evaporators261
5.5.1Methods of Feeding261
5.5.2Calculation Methods for
Multiple-Effect Evaporators262
5.5.3Effect of Liquid Head and
Boiling-Point Elevation266
5.5.4Optimum Number of Effects267
5.5.5Multiple-Effect Calculations267
5.5.6Vapor Recompression270
Problems271
Chapter 6Principles of Diffusion and
Mass Transfer Between Phases274
6.1Theory of Diffusion275
6.2Prediction of Diffusivities283
6.3Mass-Transfer Theories289
Problems295
Chapter 7Equilibrium Relations and
Equilibrium- Stage Operations299
7.1Equilibrium Relations299
7.1.1Gas-Liquid Equilibrium299
7.1.2Vapor-Liquid Equilibrium Relations300
7.2Equilibrium-Stage Operations305
7.2.1Equipment for Stage Contacts305
7.2.2Principles of Stage Processes307
Problems317
Chapter 8Gas Absorption321
8.1Principles of Absorption321
8.1.1Material Balances322
8.1.2Limiting and Optimum Gas-liquid
Ratio324
8.1.3Rate of Absorption in Packed
Towers327
8.2Calculation of Tower Height329
8.2.1Fundamental Calculation Equation
of Packing Height329
8.2.2Number of Transfer Units and Height
of A Transfer Unit330
8.2.3Alternate Forms of Transfer
Coefficients332
8.2.4Effect of Pressure335
8.2.5Temperature Variations in Packed
Towers335
8.3Multicomponent Absorption338
8.4Desorption or Stripping339
8.5Absorption from Rich Gases342
8.6Absorption in Plate Columns344
8.7Absorption with Chemical Reaction344
8.8Cocurrent flow operation345
Problems346
Chapter 9Distillation348
9.1Flash Distillation348
9.2Simple Batch or Differential Distillation350
9.3Simple Steam Distillation353
9.4Continuous Distillation with Reflux354
9.4.1Action on an Ideal Plate354
9.4.2Combination Rectification and
Stripping355
9.4.3Material Balances in Plate Columns357
9.4.4Number of Ideal Plates;
McCabe-Thiele Method359
9.4.5Special Cases for Rectification Using
McCabe-Thiele Method377
9.4.6Batch Distillation with Reflux381
9.5Azeotropic and Extractive Distillation382
9.6Plate Efficiencies385
Problems388
Chapter 10Leaching and Extraction393
10.1Leaching393
10.1.1Leaching Equipment393
10.1.2Principles of Continuous
Countercurrent Leaching395
10.2Liquid Extraction399
10.2.1Extraction Equipment400
10.2.2Principles of Extraction405
Problems422
Chapter 11Drying of Process Materials426
11.1Introduction and Methods of Drying426
11.2Properties of Moist Air and
Humidity Chart429
11.2.1Humidity429
11.2.2Humid Heat of an Air?CWater Vapor
Mixture431
11.2.3Humid Volume of an Air?CWater
Vapor Mixture432
11.2.4Total Enthalpy of an Air?CWater
Vapor Mixture432
11.2.5Dew Point of an Air?CWater Vapor
Mixture433
11.2.6Adiabatic Saturation Temperatures433
11.2.7Dry-Bulb Temperature and
Wet-Bulb Temperature434
11.2.8Humidity Chart437
11.2.9Measurement of Humidity441
11.3Principles of Drying442
11.3.1Temperature patterns in dryers442
11.3.2Phase Equilibria443
11.3.3Data of Equilibrium Moisture
Content for Inorganic and
Biological Materials446
11.4Rate-of-Drying Curves447
11.4.1Method Using Experimental
Drying Curve447
11.4.2Rate of Drying Curves for
Constant-Drying Conditions448
11.4.3Critical Moisture Content449
11.4.4Drying in the Constant-Rate
Period450
11.4.5Drying in the Falling-Rate Period450
11.4.6Moisture Movements in Solids During Drying in the Falling-Rate Period451
11.4.7Effect of Shrinkage452
11.5Calculation Methods for Constant-Rate
Drying Period452
11.5.1Method Using Experimental
Drying Curve452
11.5.2Method Using Rate-of-Drying Curve
for Constant-Rate Period453
11.5.3Method Using Predicted Transfer
Coefficients for Constant-Rate
Period453
11.5.4Effect of Process Variables on
Constant-Rate Period456
11.6Calculation Methods for Falling-rate
Drying Period457
11.6.1Method Using Numerical
Integration457
11.6.2Calculation Methods for Special
Cases in Falling-Rate Region458
11.7Equations for Various Types of Dryers459
11.7.1Through-Circulation Drying in
Packed Beds459
11.7.2Tray Drying with Varying Air
Conditions463
11.7.3Material and Heat Balances for
Continuous Dryers464
11.7.4Continuous Countercurrent Drying466
11.8Drying Equipment468
11.8.1Dryers for Solids and Pastes469
11.8.2Dryers for Solutions and Slurries474
11.8.3Selection of Drying Equipment477
Problems478
Chapter 12Tray and Packed Tower Design483
12.1Packed Tower Design483
12.1.1Packed Tower and Packings483
12.1.2Fluid Mechanics of Packed Tower486
12.1.3Calculations of Packed Tower491
12.2Plate Tower Design493
12.2.1Introduction493
12.2.2Fluid Mechanics of Plate Columns495
12.2.3Plate Efficiencies504
Appendix511
1Unit Conversion511
2Dimensionless Groups512
3Standard Steel Pipe513
4Condenser and Heat-Exchanger Data514
5Properties of Liquid Water518
6Properties of Saturated Steam and Water518
7Viscosities of Gases520
8Viscosities of Liquids522
9Thermal Conductivities of Metals524
10Thermal Conductivities of Various Solids
and Insulating Materials524
11Thermal Conductivities of Gases and
Vapors526
12Thermal Conductivities of Liquids Other
Than Water526
13Specific Heats of Gases527
14Specific Heats of Liquids529
15Prandtl Numbers for Gases at 1 atm and
100℃531
16Prandtl Numbers for Liquids531
17Diffusivities and Schmidt Numbers for
Gases in Air at 0℃ and 1 atm531
18Collision Integral and Lennard-Jones
Force Constants532
19Equilibrium Data for Ethanol-Water System
at 101.325 kPa533
20Henry’s Law Constants for Gases in
Water534
21Partial Pressure p of SO2 in The Gas in
Equilibrium with The Mole Fraction x of
SO2 in The Liquid at 20℃535
22Boiling Point for Inorganic Solution at
1 atm535
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| 內容試閱：
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McGraw-Hill公司的《Unit?Operations?of?Chemical?Engineering》自20世纪50年代出版以来至今已修订至第7版，是一本在全球范围内很有影响力的教科书。该书内容广泛，结构严谨，逻辑性及实用性强，但该书的内容与知识点之间的衔接与我国化工原理教学大纲有所差别。因此，为了适应我国化工原理双语教学的需要，我们在该书第7版的基础上，按照我国化工原理教学大纲的要求进行了改编，将原书的29章改编为12章。改编后教材的内容顺序基本与中文教材习惯采用的顺序一致，重点介绍了化工单元操作的基本原理、典型设备结构特性及其计算，在内容编排上力求逻辑严谨，同时兼顾工程实???????用性。
由于课时数和篇幅的限制，改编时删除了原书的第6章可压缩流体的流动、第9章流体的搅拌及混合、第25章吸附及固定床分离、第26章膜分离过程、第27章结晶和?????????第28章固体颗粒的性质及处理。改编后各章内容概述如下。
第1章流体流动，包括流体静力学、流体流动现象、不可压缩流体的流动、管内流动的计算和流体的测量。改编时对原书第2～8章的内容进行了调整和删补；为了突出流体流动基本方程中各项的物理概念，方程的导出过程是基于质量守恒和流动系统的第一、第二热力学定律，避免使用复杂的三维微分问题；补充了原书没有的管内流动系统计算的内容，并将颗粒与流体之间相对运动的内容归入第3章，流体输送的内容归入第2章。
第2章流体输送，包括液体输送和气体输送，重点介绍管路、泵的结构特点、泵的特性和操作特性，简单介绍气体输送及其输送机械。原书的第8章中关于流体输送及流体输送机械的内容较少，改编时增加了离心泵的结构特点、特性曲线、管路特性曲线、离心泵的工作点以及离心泵的串并联等内容。
第3章非均相体系的流动和分离，内容包括流体与颗粒之间的相对运动、气固分离及分离设备、过滤的基本原理和过滤设备的基本结构、恒速和恒压过滤的计算，是原书第7章和第29章部分内容的综合，并参考了其它书籍，如《Solid-Liquid?Separation》和中文教科书的内容。
第4章传热，包括热传导、无相变管内外对流传热、相变对流传热、热辐射、热交换过程的计算及换热器。由原书第10～15章的内容改编而成，删除了其中的三维传热问题和不稳定传热。
第5章蒸发，包括蒸发器的分类及结构特点、沸点校正以及单效、多效蒸发器的计算。改编时对温差损失计算、物料衡算和热量衡算等内容都做了必要的补充。
第6章扩散原理及相间质量传递是在原书第17章基础上进行改编，内容包括等分子反向和单向扩散、扩散系数以及相间质量传递原理，删除了质量传递系数的测量等相关内容。
第7章平衡关系及平衡级，内容包括稀溶液的气液平衡、理想和非理想溶液的气液平衡关系、操作线方程及给定条件下平衡级的计算，在原书第20章的基础上增加了气液平衡的内容。
第8章气体吸收，包括吸收过程的物料衡算和操作线方程、稀溶液及浓溶液中的吸收操作、最小液气比、传质系数的表示及相互之间的关系以及填料高度的计算。本章是在原书第18章的基础上进行改编，原书中有关填料及填料塔设计的内容归入第12章，补充了最小液气比和用无溶质基浓度表示的计算法。
第9章蒸馏，包括简单蒸馏、精馏原理、有回流比的精馏过程、不稳定精馏以及恒沸精馏和萃取精馏。在原书第21章的基础上删去了焓衡算和多组分精馏部分内容，并将筛板塔设计的内容移至第12章，补充了微分蒸馏、水蒸气蒸馏、恒沸精馏和萃取精馏以及提馏塔、直接水蒸气加热精馏和多股进料、多侧线抽料等内容。
第10章浸提和萃取，包括浸提及萃取设备、液液萃取的原理及计算。改编时只采用原书第23章的固液浸提部分，液液萃取部分重新编写。
第11章除湿与固体干燥，包括干燥设备、湿空气的性质、湿固体的性质、冷却塔、干燥过程的质量、热量衡算以及干燥原理及干燥时间的计算。改编时采用了原书第19章和第24章的部分内容。
第12章板式塔和填料塔的设计，综合了原书第18章和第21章有关填料塔和板式塔的内容。
为了计算方便并适应国际单位制的需要，原书的附录全部改为SI制并补充了一些计算时常用的数据。本教材尽量采用国际单位制，但是由于图表中单位转换比较困难，因此个别图表仍沿用原书中的英制单位。
原书为教师提供了一些网上资源，包括习题解答、教学PPT和与本书相关的基本信息，其网址为http：www.mhhe.commccabe7e。
本书由华南理工大学、天津大学和华东理工大学合作改编完成。第1章由天津大学夏清改编；下
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