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。
目錄：
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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