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    1. Naturvetenskap och teknik
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    Heat Transfer

    Evolution, Design and Performance

    AvAdrian Bejan

    Inbunden, Engelska, 2022

    1 407 kr

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    E-bok

    1 625 kr

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    Beskrivning

    HEAT TRANSFER Provides authoritative coverage of the fundamentals of heat transfer, written by one of the most cited authors in all of Engineering Heat Transfer presents the fundamentals of the generation, use, conversion, and exchange of heat between physical systems. A pioneer in establishing heat transfer as a pillar of the modern thermal sciences, Professor Adrian Bejan presents the fundamental concepts and problem-solving methods of the discipline, predicts the evolution of heat transfer configurations, the principles of thermodynamics, and more. Building upon his classic 1993 book Heat Transfer, the author maintains his straightforward scientific approach to teaching essential developments such as Fourier conduction, fins, boundary layer theory, duct flow, scale analysis, and the structure of turbulence. In this new volume, Bejan explores topics and research developments that have emerged during the past decade, including the designing of convective flow and heat and mass transfer, the crucial relationship between configuration and performance, and new populations of configurations such as tapered ducts, plates with multi-scale features, and dendritic fins. Heat Transfer: Evolution, Design and Performance: Covers thermodynamics principles and establishes performance and evolution as fundamental concepts in thermal sciencesDemonstrates how principles of physics predict a future with economies of scale, multi-scale design, vascularization, and hierarchical distribution of many small featuresExplores new work on conduction architecture, convection with nanofluids, boiling and condensation on designed surfaces, and resonance of natural circulation in enclosuresIncludes numerous examples, problems with solutions, and access to a companion websiteHeat Transfer: Evolution, Design and Performance is essential reading for undergraduate and graduate students in mechanical and chemical engineering, and for all engineers, physicists, biologists, and earth scientists.

    Produktinformation

    • Utgivningsdatum:2022-03-11
    • Mått:203 x 257 x 38 mm
    • Vikt:1 542 g
    • Format:Inbunden
    • Språk:Engelska
    • Antal sidor:608
    • Förlag:John Wiley & Sons Inc
    • ISBN:9781119467403

    Utforska kategorier

    • Maskinteknik och material inom Naturvetenskap och teknik

    Mer om författaren

    Adrian Bejan is J. A. Jones Distinguished Professor in the Department of Mechanical Engineering and Materials Science at Duke University, USA. His main areas of research are thermodynamics, heat transfer, fluid mechanics, and design evolution in nature. He is the author of 30 books and 700 peer-refereed journal articles and is an Honorary Member of the American Society of Mechanical Engineers (ASME).

    Innehållsförteckning

    • Preface xiAbout the Author xvAcknowledgments xviList of Symbols xviiAbout the Companion Website xxvi1 Introduction 11.1 Fundamental Concepts 11.1.1 Heat Transfer 11.1.2 Temperature 21.1.3 Specific Heats 41.2 The Objective of Heat Transfer 51.3 Conduction 61.3.1 The Fourier Law 61.3.2 Thermal Conductivity 81.3.3 Cartesian Coordinates 121.3.4 Cylindrical Coordinates 141.3.5 Spherical Coordinates 151.3.6 Initial and Boundary Conditions 161.4 Convection 181.5 Radiation 231.6 Evolutionary Design 241.6.1 Irreversible Heating 251.6.2 Reversible Heating 27References 29Problems 302 Unidirectional Steady Conduction 372.1 Thin Walls 372.1.1 Thermal Resistance 372.1.2 Composite Walls 392.1.3 Overall Heat Transfer Coefficient 402.2 Cylindrical Shells 422.3 Spherical Shells 442.4 Critical Insulation Radius 452.5 Variable Thermal Conductivity 482.6 Internal Heat Generation 492.7 Evolutionary Design: Extended Surfaces (Fins) 512.7.1 The Enhancement of Heat Transfer 512.7.2 Constant Cross-Sectional Area 532.7.2.1 The Longitudinal Conduction Model 532.7.2.2 Long Fin 542.7.2.3 Fin with Insulated Tip 552.7.2.4 Heat Transfer Through the Tip 572.7.2.5 Fin Efficiency 582.7.2.6 Fin Effectiveness 592.7.3 Variable Cross-Sectional Area 602.7.4 Scale Analysis: When the Unidirectional Conduction Model Is Valid 612.7.5 Fin Shape Subject to Volume Constraint 632.7.6 Heat Tube Shape 642.7.7 Rewards from Freedom 66References 70Problems 713 Multidirectional Steady Conduction 853.1 Analytical Solutions 853.1.1 Two-Dimensional Conduction in Cartesian Coordinates 853.1.1.1 Homogeneous Boundary Conditions 853.1.1.2 Separation of Variables 873.1.1.3 Orthogonality 883.1.2 Heat Flux Boundary Conditions 923.1.3 Superposition of Solutions 953.1.4 Cylindrical Coordinates 983.1.5 Three-Dimensional Conduction 1003.2 Integral Method 1013.3 Scale Analysis 1033.4 Evolutionary Design 1043.4.1 Shape Factors 1043.4.2 Trees: Volume–Point Flow 1083.4.3 Rewards from Freedom 111References 113Problems 1144 Time-Dependent Conduction 1214.1 Immersion Cooling or Heating 1214.2 Lumped Capacitance Model (The “Late” Regime) 1244.3 Semi-infinite Solid Model (The “Early” Regime) 1254.3.1 Constant Surface Temperature 1254.3.2 Constant Heat Flux Surface 1284.3.3 Surface in Contact with Fluid Flow 1294.4 Unidirectional Conduction 1334.4.1 Plate 1334.4.2 Cylinder 1384.4.3 Sphere 1414.4.4 Plate, Cylinder, and Sphere with Fixed Surface Temperature 1424.5 Multidirectional Conduction 1484.6 Concentrated Sources and Sinks 1524.6.1 Instantaneous (One-Shot) Sources and Sinks 1524.6.2 Persistent (Continuous) Sources and Sinks 1544.6.3 Moving Heat Sources 1564.7 Melting and Solidification 1584.8 Evolutionary Design 1624.8.1 Spacings Between Buried Heat Sources 1624.8.2 The S-Curve Growth of Spreading and Collecting 164References 166Problems 1675 External Forced Convection 1775.1 Classification of Convection Configurations 1775.2 Basic Principles of Convection 1795.2.1 Mass Conservation Equation 1795.2.2 Momentum Equations 1805.2.3 Energy Equation 1855.3 Laminar Boundary Layer 1895.3.1 Velocity Boundary Layer 1895.3.2 Thermal Boundary Layer 1955.3.2.1 Thick Thermal Boundary Layer 1955.3.2.2 Thermal Boundary Layer 1965.3.3 Nonisothermal Wall 1985.3.4 Film Temperature 2005.4 Turbulent Boundary Layer 2025.4.1 Transition from Laminar to Turbulent Flow 2025.4.2 Time-Averaged Equations 2035.4.3 Eddy Diffusivities 2065.4.4 Wall Friction 2085.4.5 Heat Transfer 2115.5 Other External Flows 2155.5.1 Single Cylinder 2155.5.2 Sphere 2185.5.3 Other Body Shapes 2185.5.4 Arrays of Cylinders 2195.5.5 Turbulent Jets 2215.6 Evolutionary Design 2235.6.1 Size of Object with Heat Transfer 2235.6.2 Evolution of Size 2255.6.3 Visualization: Heatlines 226References 227Problems 2306 Internal Forced Convection 2456.1 Laminar Flow Through a Duct 2456.1.1 Entrance Region 2456.1.2 Fully Developed Flow Region 2476.1.3 Friction Factor and Pressure Drop 2496.2 Heat Transfer in Laminar Flow 2526.2.1 Thermal Entrance Region 2526.2.2 Thermally Fully Developed Region 2536.2.3 Uniform Wall Heat Flux 2556.2.4 Isothermal Wall 2586.3 Turbulent Flow 2616.3.1 Transition, Entrance Region, and Fully Developed Flow 2616.3.2 Friction Factor and Pressure Drop 2636.3.3 Heat Transfer Coefficient 2656.4 Total Heat Transfer Rate 2696.4.1 Isothermal Wall 2696.4.2 Uniform Wall Heating 2716.5 Evolutionary Design 2716.5.1 Size of Duct with Fluid Flow 2716.5.2 Tree-Shaped Ducts 2726.5.3 Spacings 2746.5.4 Packaging for Maximum Heat Transfer Density 276References 277Problems 2787 Natural Convection 2917.1 What Drives Natural Convection? 2917.2 Boundary Layer Flow on Vertical Wall 2927.2.1 Boundary Layer Equations 2927.2.2 Scale Analysis of the Laminar Regime 2957.2.3 Isothermal Wall 2997.2.4 Transition and the Effect of Turbulence 3027.2.5 Uniform Heat Flux 3047.3 Other External Flows 3057.3.1 Thermally Stratified Reservoir 3057.3.2 Inclined Walls 3067.3.3 Horizontal Walls 3087.3.4 Horizontal Cylinder 3107.3.5 Sphere 3107.3.6 Vertical Cylinder 3107.3.7 Other Immersed Bodies 3117.4 Internal Flows 3147.4.1 Vertical Channels 3147.4.2 Enclosures Heated from the Side 3177.4.3 Enclosures Heated from Below 3207.4.4 Inclined Enclosures 3237.4.5 Annular Space Between Horizontal Cylinders 3257.4.6 Annular Space Between Concentric Spheres 3267.5 Evolutionary Design 3277.5.1 Spacings 3277.5.2 Miniaturization 329References 331Problems 3338 Convection with Change of Phase 3438.1 Condensation 3438.1.1 Laminar Film on Vertical Surface 3438.1.2 Turbulent Film on Vertical Surface 3508.1.3 Film Condensation in Other Configurations 3538.1.4 Dropwise and Direct-Contact Condensation 3598.2 Boiling 3618.2.1 Pool Boiling 3618.2.2 Nucleate Boiling and Peak Heat Flux 3658.2.3 Film Boiling and Minimum Heat Flux 3698.2.4 Flow Boiling 3738.3 Evolutionary Design 3738.3.1 Latent Heat Storage 3748.3.2 Shaping Inserts for Faster Melting 3758.3.3 Rhythmic Surface Renewal 376References 376Problems 3789 Heat Exchangers 3879.1 Classification of Heat Exchangers 3879.2 Overall Heat Transfer Coefficient 3919.3 Log-Mean Temperature Difference Method 3979.3.1 Parallel Flow 3979.3.2 Counterflow 3999.3.3 Other Flow Arrangements 4009.4 Effectiveness–NTU Method 4089.4.1 Effectiveness and Limitations Posed by the Second Law 4089.4.2 Parallel Flow 4099.4.3 Counterflow 4109.4.4 Other Flow Arrangements 4119.5 Pressure Drop 4179.5.1 Pumping Power 4179.5.2 Abrupt Contraction and Enlargement 4189.5.3 Acceleration and Deceleration 4229.5.4 Tube Bundles in Cross-Flow 4239.5.5 Compact Heat Exchanger Surfaces 4239.6 Evolutionary Design 4289.6.1 Entrance-Length Heat Exchangers 4289.6.2 Dendritic Heat Exchangers 4289.6.3 Heat Exchanger Size 4309.6.4 Heat Tubes with Convection 432References 435Problems 43710 Radiation 44710.1 Introduction 44710.2 Blackbody Radiation 44810.2.1 Definitions 44810.2.2 Temperature and Energy 45010.2.3 Intensity 45210.2.4 Emissive Power 45310.3 Heat Transfer Between Black Surfaces 46010.3.1 Geometric View Factor 46010.3.2 Relations Between View Factors 46310.3.2.1 Reciprocity 46310.3.2.2 Additivity 46410.3.2.3 Enclosure 46610.3.3 Two-Surface Enclosures 46710.4 Diffuse-Gray Surfaces 47110.4.1 Emissivity 47110.4.2 Absorptivity and Reflectivity 47510.4.3 Kirchhoff’s Law 48210.4.4 Two-Surface Enclosures 48510.4.5 Enclosures with More than Two Surfaces 48910.5 Participating Media 49310.5.1 Volumetric Absorption 49310.5.2 Gas Emissivities and Absorptivities 49410.5.3 Gas Surrounded by Black Surface 50010.5.4 Gray Medium Surrounded by Diffuse-Gray Surfaces 50110.6 Evolutionary Design 50210.6.1 Terrestrial Solar Power 50210.6.2 Extraterrestrial Solar Power 50310.6.3 Climate 505References 506Problems 507Appendix A Constants and Conversion Factors 521Appendix B Properties of Solids 527Appendix C Properties of Liquids 541Appendix D Properties of Gases 551Appendix E Mathematical Formulas 557Appendix F Turbulence Transition 565Appendix G Extremum Subject to Constraint 571Author Index 573Subject Index 579