Heat transfer : evolution, design and performance /: evolution, design and performance. (2022)

• Record Type: Book
• Further Information: Note: Adrian Bejan.
• Authors: Bejan, Adrian, 1948-
• Contents: List of Symbols xvii 1 INTRODUCTION 1.1 Fundamental Concepts 1.1.1 Heat Transfer 1.1.2 Temperature 1.1.3 Specific Heats 1.2 The Objective of Heat Transfer 1.3 Conduction 1.3.1 The Fourier Law 1.3.2 Thermal Conductivity 1.3.3 Cartesian Coordinates 1.3.4. Cylindrical Coordinates 1.3.5 Spherical Coordinates 1.3.6 Initial and Boundary Conditions 1.4 Convection 1.5 Radiation 1.6 Performance 1.6.1 Irreversible heating 1.6.2 Reversible heating References Problems 2 UNIDIRECTIONAL STEADY CONDUCTION 2.1 Thin Walls 2.1.1 Thermal Resistance 2.1.2 Composite Walls 2.1.3 Overall Heat Transfer Coefficient 2.2 Cylindrical Shells 2.3 Spherical Shells 2.4 Critical Insulation Radius 2.5 Variable Thermal Conductivity 2.6Internal Heat Generation 2.7 Performance: Extended Surfaces (Fins) 2.7.1 The Enhancement of Heat Transfer 2.7.2 Constant Cross-Sectional Area 2.7.3 Variable Cross-Sectional Area 2.7.4 Scale Analysis: When the Unidirectional Conduction Model is Valid 2.7.5 Fin Shape Subject to Volume Constraint 2.7.6 Heat Tube Shape References Problems 3 MULTIDIRECTIONAL STEADY CONDUCTION 3.1 Analytical Solutions 3.1.1 Two-Dimensional Conduction in Cartesian Coordinates 3.1.2 Heat Flux Boundary Conditions 3.1.3 Superposition of Solutions 3.1.4 Cylindrical Coordinates 3.1.5 Three-Dimensional Conduction 3.2 Integral Method 3.3 The Method of Scale Analysis 3.4 Performance 3.4.1 Shape Factors 3.4.2 Trees: Volume-Point Flow References Problems 4 TIME-DEPENDENT CONDUCTION 4.1 Immersion Cooling or Heating 4.2 Lumped Capacitance Model (the “Late” Regime) 4.3 Semi-infinite Solid Model (the “Early” Regime) 4.3.1 Constant Surface Temperature 4.3.2 Constant Heat Flux Surface 4.3.3 Surface in Contact with Fluid Flow 4.4 Unidirectional Conduction 4.4.1 Plate 4.4.2 Cylinder 4.4.3 Sphere 4.4.4 Plate, Cylinder, and Sphere with Fixed Surface Temperature 4.5 Multidirectional Conduction 4.6 Concentrated Sources and Sinks 4.6.1 Instantaneous (One-Shot) Sources and Sinks 4.6.2 Persistent (Continuous) Sources and Sinks 4.6.3 Moving Heat Sources 4.7 Melting and Solidification 4.8 Performance 4.8.1 Spacings between Buried Heat Sources 4.8.2 The S-curve Growth of Spreading and Collecting References Problems 5 EXTERNAL FORCED CONVECTION 5.1 Classification of Convection Configurations 5.2 Basic Principles of Convection 5.2.1 Mass Conservation Equation 5.2.2 Momentum Equations 5.2.3 Energy Equation 5.3 Laminar Boundary Layer 5.3.1 Velocity Boundary Layer 5.3.2 Thermal Boundary Layer (Isothermal Wall) 5.3.3 Nonisothermal Wall 5.3.4 Film Temperature 5.4 Turbulent Boundary Layer 5.4.1 Transition from Laminar to Turbulent Flow 5.4.2 Time-Averaged Equations 5.4.3 Eddy Diffusivities 5.4.4 Wall Friction 5.4.5 Heat Transfer 5.5 Other External Flows 5.5.1 Single Cylinder 5.5.2 Sphere 5.5.3 Other Body Shapes 5.5.4 Arrays of Cylinders 5.5.5 Turbulent Jets 5.6 Performance 5.6.1 Size of Object with Heat Transfer 5.6.2 Evolution of Size 5.6.3 Visualization: Heatlines References Problems 6 INTERNAL FORCED CONVECTION 6.1 Laminar Flow Through a Duct 6.1.1 Entrance Region 6.1.2 Fully Developed Flow Region 6.1.3 Friction Factor and Pressure Drop 6.2 Heat Transfer in Laminar Flow 6.2.1 Thermal Entrance Region 6.2.2 Thermally Fully Developed Region 6.2.3 Uniform Wall Heat Flux 6.2.4 Isothermal Wall 6.3 Turbulent Flow 6.3.1 Transition, Entrance Region, and Fully Developed Flow 6.3.2 Friction Factor and Pressure Drop 6.3.3 Heat Transfer Coefficient 6.4 Total Heat Transfer Rate 6.5 Performance 6.5.1 Size of Duct with Fluid Flow 6.5.2 Tree-shaped Ducts 6.5.3 Spacings 6.5.4 Packaging for Maximum Heat Transfer Density References Problems 7 NATURAL CONVECTION 7.1 What Drives Natural Convection? 7.2 Boundary Layer Flow on Vertical Wall 7.2.1 Boundary Layer Equations 7.2.2 Scale Analysis of the Laminar Regime 7.2.3 Isothermal Wall 7.2.4 Transition and the Effect of Turbulence 7.2.5 Uniform Heat Flux 7.3 Other External Flows 7.3.1 Thermally Stratified Reservoir 7.3.2 Inclined Walls 7.3.3 Horizontal Walls 7.3.4 Horizontal Cylinder 7.3.5 Sphere 7.3.6 Vertical Cylinder 7.3.7 Other Immersed Bodies 7.4 Internal Flows 7.4.1 Vertical Channels 7.4.2 Enclosures Heated from the Side 7.4.3 Enclosures Heated from Below 7.4.4 Inclined Enclosures 7.4.5 Annular Space Between Horizontal Cylinders 7.4.6 Annular Space Between Concentric Spheres 7.5 Performance 7.5.1 Spacings 7.5.2 Miniaturization References Problems 8 CONVECTION WITH CHANGE OF PHASE 8.1 Condensation 8.1.1 Laminar Film on Vertical Surface 8.1.2 Turbulent Film on Vertical Surface 8.1.3 Film Condensation in Other Configurations 8.1.4 Dropwise and Direct-Contact Condensation 8.2 Boiling 8.2.1 Pool Boiling 8.2.2 Nucleate Boiling and Peak Heat Flux 8.2.3 Film Boiling and Minimum Heat Flux 8.2.4 Flow Boiling 8.3 Performance 8.3.1 Latent Heat Storage 8.3.2 Shaping Inserts for Faster Melting 8.3.3 Rhythmic Surface Renewal References Problems 9 HEAT EXCHANGERS 9.1 Classification of Heat Exchangers 9.2 Overall Heat Transfer Coefficient 9.3 Log-Mean Temperature Difference Method 9.3.1 Parallel Flow 9.3.2 Counterflow 9.3.3 Other Flow Arrangements 9.4 Effectiveness – NTU Method 9.4.1 Effectiveness and Limitations Posed by the Second Law 9.4.2 Parallel Flow 9.4.3 Counterflow 9.4.4 Other Flow Arrangements 9.5 Pressure Drop 9.5.1 Pumping Power 9.5.2 Abrupt Contraction and Enlargement 9.5.3 Acceleration and Deceleration 9.5.4 Tube Bundles in Cross-Flow 9.5.5 Compact Heat Exchanger Surfaces 9.6 Performance 9.6.1 Entrance Length Heat Exchangers 9.6.2 Dendritic Heat Exchangers 9.6.3 Heat Exchanger Size 9.6.4 Heat Tubes with Convection References Problems 10 RADIATION 10.1 Introduction 10.2 Blackbody Radiation 10.2.1 Definitions 10.2.2 Temperature and Energy 10.2.3 Intensity 10.2.4 Emissive Power 10.3 Heat Transfer Between Bl
• Edition: 1st
• Publisher Details: Hoboken : John Wiley & Sons, Inc
• Publication Date: 2022
• Extent: 1 online resource
• Subjects: 621.4022; Heat -- Transmission
• Languages: English
• ISBNs: 9781119467434
• Notes: Note: Includes bibliographical references and index.; Note: Description based on CIP data; resource not viewed.
• Access Rights: Legal Deposit; Only available on premises controlled by the deposit library and to one user at any one time; The Legal Deposit Libraries (Non-Print Works) Regulations (UK).
• Access Usage: Restricted: Printing from this resource is governed by The Legal Deposit Libraries (Non-Print Works) Regulations (UK) and UK copyright law currently in force.