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front.pdfCourse IntroductionWhat Are "Unit Operations"?

Heat Exchange Equipmentdouble-Pipe HxerShell-and-Tube Hxer

Fundamentals of Heat Transfer: ReviewLog-Mean Driving ForceResistances in SeriesFouling FactorsCorrelations to Estimate hshi for Turbulent Flow In Long Pipes

Shell-and-Tube Heat ExchangersTube PitchBafflesho for Shell-and-Tube ExchangerAppendix: Derivation for Sb and Sc

Multipass Construction"True" Mean Temperature Difference

EvaporationEquipment for EvaporationLong-Tube Vertical EvaporatorForced-Circulation Evaporator

Evaporator PerformanceExample: Simple Evaporator ProblemSteam Economy

Overview of Evaporator DesignComplicationsBoiling-Point ElevationHeat of Dilution

Multiple EffectsPerformance

Vapor Recompression

Vapor-Liquid EquilibriumNo. of Phases PresentOne ComponentTwo Components

Ideal Solutions Obey Raoults LawIdeal Binary Mixturesxy and Txy DiagramsNonideal Behavior

Flash DistillationApproximate SolutionInverse Lever-Arm Rule on Txy Diagram

Rigorous SolutionInverse Lever-Arm Rule on Hxy Diagram

Batch (Differential) Distillation

Multistage OperationsCounter-Current Cascade

Equipment for Tray TowersPerformance of a C-C CascadeAnalysis of a C-C CascadeConstant Molal OverflowA Rectifying CascadeA Stripping CascadeSteam Distillation

McCabe-Thiele MethodLocation of Feed PlateConvergence of Operating Line and Equilibrium CurveChoosing the Reflux Ratio1) Existence of Rmin2) Total Reflux: R?? gives Minimum Stages

Calculating Flowrates and Condenser/Reboiler Heat DutiesRole of q-LinePlate EfficiencyDetermining Number of Real Stages

Multi-Component DistillationProduct Distribution for a Sharp SplitMinimum Number of TraysMinimum Reflux RatioMethod 1) Psuedo-Binary MethodMethod 2) Underwood's Method

Number of Ideal Plates at Operating RefluxMethod 1) Underwood's methodMethod 2) Gilliland correlationMethod 3) Rigorous Solution of MESH Equations

Computer Simulation of DistillationSome Preliminary StepsLoading a File (Problem)Plotting the McCabe-Thiele DiagramPrinting the GraphsTesting the McCabe-Thiele MethodThe Temperature ProfileDegrees of Freedom

Gas Absorption/StrippingEquipment for Absorption/StrippingA Typical Absorber Design ProblemSolution Overview:Detailed Solution:

Equilibrium CurveOperating LineApprox. #1: Only One Transferable ComponentApprox. #2: Dilute Solution

Interfacial Mass Transfer: ReviewDefinitions of Transfer CoefficientsDetermining the Interfacial Concentrations: (xi,yi)Equimolar Counter-Diffusion vs. Diffusion through Stagnant Fluid

Height of a Packed TowerTransfer UnitEvaluation of NTU'sSpecial Case: ya