Heat transferPDF电子书下载

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chapter 1 Introduction 1

1-1 Conduction heat transfer 2

1-2 Thermal conductivity 6

1-3 Convection heat transfer 11

1-4 Radiation heat transfer 13

1-5 Dimensions and units 14

1-6 Summary 19

chapter 2 Steady-state conduction—One dimension 24

2-1 Introduction 24

2-2 The plane wall 24

2-3 Insulation and R values 26

2-4 Radial systems—Cylinders 28

2-5 The overall heat-transfer coefficient 31

2-6 Critical thickness of insulation 32

2-7 Heat-source systems 34

2-8 Cylinder with heat sources 35

2-9 Conduction-convection systems 38

2-10 Fins 41

2-11 Thermal contact resistance 48

chapter 3 Steady-state conduction—Multiple dimensions 60

3-1 Introduction 60

3-2 Mathematical analysis of two-dimensional heat conduction 61

3-3 Graphical analysis 65

3-4 The conduction shape factor 66

3-5 Numerical method of analysis 72

3-6 Numerical formulation in terms of resistance elements 81

3-7 Gauss-Seidel iteration 86

3-8 Electrical analogy for two-dimensional conduction 98

chapter 4 Unsteady-state conduction 107

4-1 Introduction 107

4-2 Lumped-heat-capacity system 109

4-3 Transient heat flow in a semi-infinite solid 115

4-4 Convection boundary conditions 118

4-5 Multidimensional systems 130

4-6 Transient numerical method 135

4-7 Thermal resistance and capacity formulation 142

4-8 Graphical analysis—The Schmidt plot 156

chapter 5 Principles of convection 168

5-1 Introduction 168

5-2 Viscous flow 169

5-3 Inviscid flow 172

5-4 Laminar boundary layer on a flat plate 176

5-5 Energy equation of the boundary layer 183

5-6 The thermal boundary layer 186

5-7 The relation between fluid friction and heat transfer 194

5-8 Turbulent-boundary-layer heat transfer 196

5-9 Turbulent-boundary-layer thickness 203

5-10 Heat transfer in laminar tube flow 205

5-11 Turbulent flow in a tube 209

5-12 Heat transfer in high-speed flow 211

chapter 6 Empirical and practical relations for forced-convection heat transfer 223

6-1 Introduction 223

6-2 Empirical relations for pipe and tube flow 225

6-3 Flow across cylinders and spheres 240

6-4 Flow across tube banks 250

6-5 Liquid-metal heat transfer 254

6-6 Summary remarks 257

chapter 7 Natural-convection systems 265

7-1 Introduction 265

7-2 Free-convection heat transfer on a vertical flat plate 266

7-3 Empirical relations for free convection 272

7-4 Free convection from vertical planes and cylinders 274

7-5 Free convection from horizontal cylinders 280

7-6 Free convection from horizontal plates 281

7-7 Free convection from inclined surfaces 282

7-8 Nonnewtonian fluids 284

7-9 Simplified equations for air 285

7-10 Free convection from spheres 286

7-11 Free convection in enclosed spaces 286

7-12 Combined free and forced convection 292

chapter 8 Radiation heat transfer 305

8-1 Introduction 305

8-2 Physical mechanism 305

8-3 Radiation properties 307

8-4 Radiation shape factor 316

8-5 Relations between shape factors 325

8-6 Heat exchange between nonblackbodies 330

8-7 Infinite parallel planes 336

8-8 Radiation shields 337

8-9 Gas radiation 341

8-10 Radiation network for an absorbing and transmitting medium 351

8-11 Radiation exchange with specular surfaces 357

8-12 Radiation exchange with transmitting, reflecting,and absorbing media 362

8-13 Formulation for numerical solution 368

8-14 Solar radiation 382

8-15 Radiation properties of the environment 387

8-16 Effect of radiation on temperature measurement 393

8-17 The radiation heat-transfer coefficient 394

chapter 9 Condensation and boiling heat transfer 407

9-1 Introduction 407

9-2 Condensation heat-transfer phenomena 408

9-3 The condensation number 412

9-4 Film condensation inside horizontal tubes 413

9-5 Boiling heat transfer 415

9-6 Simplified relations for boiling heat transfer with water 428

9-7 Summary and design information 429

chapter 10 Heat exchangers 437

10-1 Introduction 437

10-2 The overall heat-transfer coefficient 438

10-3 Fouling factors 443

10-4 Types of heat exchangers 444

10-5 The log mean temperature difference 447

10-6 Effectiveness-NTU method 454

10-7 Compact heat exchangers 467

10-8 Analysis for variable properties 470

10-9 Heat-exchanger design considerations 476

chapter 11 Mass transfer 484

11-1 Introduction 484

11-2 Fick's law of diffusion 485

11-3 Diffusion in gases 486

11-4 Diffusion in liquids and solids 491

11-5 The mass-transfer coefficient 492

11-6 Evaporation processes in the atmosphere 496

chapter 12 Special topics in heat transfer 502

12-1 Introduction 502

12-2 Heat transfer in magnetofluidynamic （MFD） systems 502

12-3 Transpiration cooling 509

12-4 Low-density heat transfer 514

12-5 Ablation 523

12-6 The heat pipe 525

appendix A Tables 533

appendix B Exact solutions of laminar-boundary-layer equations 551

Index 559

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