Heat And Mass Transfer Cengel 5th Edition Pdf

Heat and Mass Transfer Fundamentals and Applications, by Yunus Cengel and Afshin Ghajar provides the perfect blend of fundamentals and applications. The text provides a highly intuitive and practical understanding of the material by emphasizing the physics and the underlying physical phenomena involved. Zuikerdink J. Heat And Mass Transfer Cengel 5th Edition Pdf

Solving advanced courses in mechanics and heat transfer without Cengel and Ghajar’s Heat and Mass Transfer: Fundamentals and Applications by Yunus A. Cengel , Afshin Ghajar is akin to running a marathon without Nike’s quite simply, you won’t get very far. The heat and mass transfer fundamentals and applications 5th edition in si units pdf holds your hand from start to finish in a clear and concise manner. I’d recommend this book to anyone in a thermodynamics class.

The Cengel heat and mass transfer pdf starts out with an overview of the topic. It then proceeds to discuss the fundamentals in depth while providing practical applications to help you understand the concept. It then goes on to show how it is applicable in day to day life. Towards the end, it also introduces exercises for you to practice and provides additional resources/literature for further readings.

About the book Heat And Mass Transfer Cengel 5th Edition Pdf

The text has been written as a ‘self-contained guide for students who want to learn the material,’ notes Dr. Yunus A. Cengel in the Preface. The text uses a very lucid and interesting approach to present the material. It is a very effective blend of classical and modern theory. The presentation of classical approach is probably more extensive than any other textbook on Thermodynamics.

Heat and Mass Transfer: Fundamentals and Applications, by Yunus Cengel and Afshin Ghajar provides the perfect blend of fundamentals and applications. The text provides a highly intuitive and practical understanding of the material by emphasizing the physics and the underlying physical phenomena involved.

This text covers the standard topics of heat transfer with an emphasis on physics and real-world every day applications, while de-emphasizing mathematical aspects. This approach is designed to take advantage of students’ intuition, making the learning process easier and more engaging.

The Fifth Edition retains the highly intuitive and practice approach of the earlier editions. The text has been revised to include a broader selection of topics that have been taught in college courses.

Table of Content of Heat And Mass Transfer Cengel 5th Edition Pdf

Preface xviii

Nomenclature xxvi



1-1          Thermodynamics and Heat Transfer 2

Application Areas of Heat Transfer 3

Historical Background 3

1-2          Engineering Heat Transfer 4

Modeling in Heat Transfer 5

1-3          Heat and Other Forms of Energy 6

Specific Heats of Gases, Liquids, and Solids 7

Energy Transfer 9

1-4          The First Law of Thermodynamics 11

Energy Balance for Closed Systems (Fixed Mass) 12

Energy Balance for Steady-Flow Systems 12

Surface Energy Balance 13

1-5          Heat Transfer Mechanisms 17

1-6          Conduction 17

Thermal Conductivity 19

Thermal Diffusivity 23

1-7          Convection 25

1-8          Radiation 27

1-9          Simultaneous Heat Transfer Mechanisms 30

1-10       Problem-Solving Technique 35

A Remark on Significant Digits 37

Engineering Software Packages 38

Engineering Equation Solver (EES) 39

Heat Transfer Tools (HTT) 39

Topic of Special Interest: Thermal Comfort 40

Summary 46

References and Suggested Reading 47

Problems 47



2-1          Introduction 62

Steady versus Transient Heat Transfer 63

Multidimensional Heat Transfer 64

Heat Generation 66

2-2          One-Dimensional

Heat Conduction Equation 68

Heat Conduction Equation in a Large Plane Wall 68

Heat Conduction Equation in a Long Cylinder 69

Heat Conduction Equation in a Sphere 71

Combined One-Dimensional

Heat Conduction Equation 72

2-3          General Heat Conduction Equation 74

Rectangular Coordinates 74

Cylindrical Coordinates 75

Spherical Coordinates 76

2-4          Boundary and Initial Conditions 77

1 Specified Temperature Boundary Condition 78

2 Specified Heat Flux Boundary Condition 79

3 Convection Boundary Condition 81

4 Radiation Boundary Condition 82

5 Interface Boundary Conditions 83

6 Generalized Boundary Conditions 84

2-5          Solution of Steady One-Dimensional Heat Conduction Problems 86

2-6          Heat Generation in a Solid 97

2-7          Variable Thermal Conductivity, k(T) 104

Topic of Special Interest:

A Brief Review of Differential Equations 107

Summary 111

References and Suggested Reading 112

Problems 113



3-1          Steady Heat Conduction in Plane Walls 128

The Thermal Resistance Concept 129

Thermal Resistance Network 131

Multilayer Plane Walls 133

3-2          Thermal Contact Resistance 138

3-3          Generalized Thermal Resistance Networks 143

3-4          Heat Conduction in Cylinders and Spheres 146

Multilayered Cylinders and Spheres 148

3-5          Critical Radius of Insulation 153

3-6          Heat Transfer from Finned Surfaces 156

Fin Equation 157

Fin Efficiency 160

Fin Effectiveness 163

Proper Length of a Fin 165

3-7          Heat Transfer in Common Configurations 169

Topic of Special Interest:

Heat Transfer Through Walls and Roofs 175

Summary 185

References and Suggested Reading 186

Problems 187



4-1          Lumped System Analysis 210

Criteria for Lumped System Analysis 211

Some Remarks on Heat Transfer in Lumped Systems 213

4-2          Transient Heat Conduction in

Large Plane Walls, Long Cylinders,

and Spheres with Spatial Effects 216

4-3          Transient Heat Conduction in

Semi-Infinite Solids 228

4-4          Transient Heat Conduction in Multidimensional Systems 231

Topic of Special Interest:

Refrigeration and Freezing of Foods 239

Summary 250

References and Suggested Reading 251

Problems 252




5-1          Why Numerical Methods? 266

1 Limitations 267

2 Better Modeling 267

3 Flexibility 268

4 Complications 268

5 Human Nature 268

5-2          Finite Difference Formulation of Differential Equations 269

5-3          One-Dimensional Steady Heat Conduction 272

Boundary Conditions 274

5-4          Two-Dimensional

Steady Heat Conduction 282

Boundary Nodes 283

Irregular Boundaries 287

5-5          Transient Heat Conduction 291

Transient Heat Conduction in a Plane Wall 293

Two-Dimensional Transient Heat Conduction 304

Topic of Special Interest:

Controlling Numerical Error 309

Summary 312

References and Suggested Reading 314

Problems 314



6-1          Physical Mechanism on Convection 334

Nusselt Number 336

6-2          Classification of Fluid Flows 337

Viscous versus Inviscid Flow 337

Internal versus External Flow 337

Compressible versus Incompressible Flow 337

Laminar versus Turbulent Flow 338

Natural (or Unforced) versus Forced Flow 338

Steady versus Unsteady (Transient) Flow 338

One-, Two-, and Three-Dimensional Flows 338

6-3          Velocity Boundary Layer 339

Surface Shear Stress 340

6-4          Thermal Boundary Layer 341

Prandtl Number 341

6-5          Laminar and Turbulent Flows 342

Reynolds Number 343

6-6          Heat and Momentum Transfer

in Turbulent Flow 343

6-7          Derivation of Differential

Convection Equations 345

Conservation of Mass Equation 345

Conservation of Momentum Equations 346

Conservation of Energy Equation 348

6-8          Solutions of Convection Equations

for a Flat Plate 352

The Energy Equation 354

6-9          Nondimensionalized Convection

Equations and Similarity 356

6-10       Functional Forms of Friction and Convection Coefficients 357

6-11       Analogies between Momentum and Heat Transfer 358

Summary 361

References and Suggested Reading 362

Problems 362



7-1          Drag Force and Heat Transfer

in External Flow 368

Friction and Pressure Drag 368

Heat Transfer 370

7-2          Parallel Flow over Flat Plates 371

Friction Coefficient 372

Heat Transfer Coefficient 373

Flat Plate with Unheated Starting Length 375

Uniform Heat Flux 375

7-3          Flow across Cylinders and Spheres 380

Effect of Surface Roughness 382

Heat Transfer Coefficient 384

7-4          Flow across Tube Banks 389

Pressure Drop 392

Topic of Special Interest:

Reducing Heat Transfer through Surfaces 395

Summary 406

References and Suggested Reading 407

Problems 408



8-1          Introduction 420

8-2          Mean Velocity and Mean Temperature 420

Laminar and Turbulent Flow in Tubes 422

8-3          The Entrance Region 423

Entry Lengths 425

8-4          General Thermal Analysis 426

Constant Surface Heat Flux (qs 5 constant) 427

Constant Surface Temperature (Ts 5 constant) 428

8-5          Laminar Flow in Tubes 431

Pressure Drop 433

Temperature Profile and the Nusselt Number 434

Constant Surface Heat Flux 435

Constant Surface Temperature 436

Laminar Flow in Noncircular Tubes 436

Developing Laminar Flow in the Entrance Region 436

8-6          Turbulent Flow in Tubes 441

Rough Surfaces 442

Developing Turbulent Flow in the Entrance Region 443

Turbulent Flow in Noncircular Tubes 443

Flow through Tube Annulus 444

Heat Transfer Enhancement 444

Summary 449

References and Suggested Reading 450

Problems 452



9-1          Physical Mechanism of

Natural Convection 460

9-2          Equation of Motion and

the Grashof Number 463

The Grashof Number 465

9-3          Natural Convection over Surfaces 466

Vertical Plates (Ts 5 constant) 467

Vertical Plates (qs 5 constant) 467

Vertical Cylinders 467

Inclined Plates 467

Horizontal Plates 469

Horizontal Cylinders and Spheres 469

9-4          Natural Convection from

Finned Surfaces and PCBs 473

Natural Convection Cooling of Finned Surfaces

(Ts 5 constant) 473

Natural Convection Cooling of Vertical PCBs

(qs 5 constant) 474

Mass Flow Rate through the Space between Plates 475

9-5          Natural Convection inside Enclosures 477

Effective Thermal Conductivity 478

Horizontal Rectangular Enclosures 479

Inclined Rectangular Enclosures 479

Vertical Rectangular Enclosures 480

Concentric Cylinders 480

Concentric Spheres 481

Combined Natural Convection and Radiation 481

9-6          Combined Natural and Forced Convection 486

Topic of Special Interest:

Heat Transfer through Windows 489

Summary 499

References and Suggested Reading 500

Problems 501



10-1       Boiling Heat Transfer 516

10-2       Pool Boiling 518

Boiling Regimes and the Boiling Curve 518

Heat Transfer Correlations in Pool Boiling 522

Enhancement of Heat Transfer in Pool Boiling 526

10-3       Flow Boiling 530

10-4       Condensation Heat Transfer 532

10-5       Film Condensation 532

Flow Regimes 534

Heat Transfer Correlations for Film Condensation 535

10-6       Film Condensation Inside

Horizontal Tubes 545

10-7       Dropwise Condensation 545

Topic of Special Interest:

Heat Pipes 546

Summary 551

References and Suggested Reading 553

Problems 553



11-1       Introduction 562

11-2       Thermal Radiation 563

11-3       Blackbody Radiation 565

11-4       Radiation Intensity 571

Solid Angle 572

Intensity of Emitted Radiation 573

Incident Radiation 574

Radiosity 575

Spectral Quantities 575

11-5       Radiative Properties 577

Emissivity 578

Absorptivity, Reflectivity, and Transmissivity 582

Kirchhoff?s Law 584

The Greenhouse Effect 585

11-6       Atmospheric and Solar Radiation 586

Topic of Special Interest:

Solar Heat Gain through Windows 590

Summary 597

References and Suggested Reading 599

Problems 599



12-1       The View Factor 606

12-2       View Factor Relations 609

1 The Reciprocity Relation 610

2 The Summation Rule 613

3 The Superposition Rule 615

4 The Symmetry Rule 616

View Factors between Infinitely Long Surfaces:

The Crossed-Strings Method 618

12-3       Radiation Heat Transfer: Black Surfaces 620

12-4       Radiation Heat Transfer:

Diffuse, Gray Surfaces 623

Radiosity 623

Net Radiation Heat Transfer to or from a Surface 623

Net Radiation Heat Transfer between Any

Two Surfaces 625

Methods of Solving Radiation Problems 626

Radiation Heat Transfer in Two-Surface Enclosures 627

Radiation Heat Transfer in Three-Surface Enclosures 629

12-5       Radiation Shields and the Radiation Effect 635

Radiation Effect on Temperature Measurements 637

12-6       Radiation Exchange with Emitting and Absorbing Gases 639

Radiation Properties of a Participating Medium 640

Emissivity and Absorptivity of Gases and Gas Mixtures 642

Topic of Special Interest:

Heat Transfer from the Human Body 649

Summary 653

References and Suggested Reading 655

Problems 655



13-1       Types of Heat Exchangers 668

13-2       The Overall Heat Transfer Coefficient 671

Fouling Factor 674

13-3       Analysis of Heat Exchangers 678

13-4       The Log Mean Temperature

Difference Method 680

Counter-Flow Heat Exchangers 682

Multipass and Cross-Flow Heat Exchangers:

Use of a Correction Factor 683

13-5       The Effectiveness?NTU Method 690

13-6       Selection of Heat Exchangers 700

Heat Transfer Rate 700

Cost 700

Pumping Power 701

Size and Weight 701

Type 701

Materials 701

Other Considerations 702

Summary 703

References and Suggested Reading 704

Problems 705



14-1       Introduction 718

14-2       Analogy between Heat and Mass Transfer 719

Temperature 720

Conduction 720

Heat Generation 720

Convection 721

14-3       Mass Diffusion 721

1 Mass Basis 722

2 Mole Basis 722

Special Case: Ideal Gas Mixtures 723

Fick?s Law of Diffusion: Stationary Medium Consisting of Two Species 723

14-4       Boundary Conditions 727

14-5       Steady Mass Diffusion through a Wall 732

14-6       Water Vapor Migration in Buildings 736

14-7       Transient Mass Diffusion 740

14-8       Diffusion in a Moving Medium 743

Special Case: Gas Mixtures at Constant Pressure and Temperature 747

Diffusion of Vapor through a Stationary Gas:

Stefan Flow 748

Equimolar Counterdiffusion 750

14-9       Mass Convection 754

Analogy between Friction, Heat Transfer, and Mass Transfer Coefficients 758

Limitation on the Heat?Mass Convection Analogy 760

Mass Convection Relations 760

14-10     Simultaneous Heat and Mass Transfer 763

Summary 769

References and Suggested Reading 771

Problems 772



15-1       Introduction and History 786

15-2       Manufacturing of Electronic Equipment 787

The Chip Carrier 787

Printed Circuit Boards 789

The Enclosure 791

15-3       Cooling Load of Electronic Equipment 793

15-4       Thermal Environment 794

15-5       Electronics Cooling in

Different Applications 795

15-6       Conduction Cooling 797

Conduction in Chip Carriers 798

Conduction in Printed Circuit Boards 803

Heat Frames 805

The Thermal Conduction Module (TCM) 810

15-7       Air Cooling: Natural Convection

and Radiation 812

15-8       Air Cooling: Forced Convection 820

Fan Selection 823

Cooling Personal Computers 826

15-9       Liquid Cooling 833

15-10     Immersion Cooling 836

Summary 841

References and Suggested Reading 842

Problems 842



(SI UNITS) 855

Table A-1             Molar Mass, Gas Constant, and Critical-Point Properties 856

Table A-2             Boiling- and Freezing-Point

Properties 857

Table A-3             Properties of Solid Metals 858

Table A-4             Properties of Solid Nonmetals 861

Table A-5             Properties of Building Materials 862

Table A-6             Properties of Insulating Materials 864

Table A-7             Properties of Common Foods 865

Table A-8             Properties of Miscellaneous

Materials 867

Table A-9             Properties of Saturated Water 868

Table A-10           Properties of Saturated

Refrigerant-134a 869

Table A-11           Properties of Saturated Ammonia 870

Table A-12           Properties of Saturated Propane 871

Table A-13           Properties of Liquids 872

Table A-14           Properties of Liquid Metals 873

Table A-15           Properties of Air at 1 atm Pressure 874

Table A-16           Properties of Gases at 1 atm

Pressure 875

Table A-17           Properties of the Atmosphere at High Altitude 877

Table A-18           Emissivities of Surfaces 878

Table A-19           Solar Radiative Properties of

Materials 880

Figure A-20         The Moody Chart for the Friction Factor for Fully Developed Flow in

Circular Tubes 881



Table A-1E           Molar Mass, Gas Constant, and Critical-Point Properties 884

Table A-2E           Boiling- and Freezing-Point

Properties 885

Table A-3E           Properties of Solid Metals 886

Table A-4E           Properties of Solid Nonmetals 889

Table A-5E           Properties of Building Materials 890

Table A-6E           Properties of Insulating Materials 892

Table A-7E           Properties of Common Foods 893

Table A-8E           Properties of Miscellaneous

Materials 895

Table A-9E           Properties of Saturated Water 896

Table A-10E        Properties of Saturated

Refrigerant-134a 897

Table A-11E        Properties of Saturated Ammonia 898

Table A-12E        Properties of Saturated Propane 899

Table A-13E        Properties of Liquids 900

Table A-14E        Properties of Liquid Metals 901

Table A-15E        Properties of Air at 1 atm Pressure 902

Table A-16E        Properties of Gases at 1 atm

Pressure 903

Table A-17E        Properties of the Atmosphere at High Altitude 905




About the Author Heat And Mass Transfer Cengel 5th Edition Pdf

Afshin J. Ghajar is Regents Professor and John Brammer Professor in the School of Mechanical and Aerospace Engineering at Oklahoma State University, Stillwater, Oklahoma, and an Honorary Professor of Xi’an Jiaotong University, Xi’an, China. He received his B.S., M.S., and Ph.D. degrees, all in mechanical engineering, from Oklahoma State University. His expertise is in experimental heat transfer/fluid mechanics and the development of practical engineering correlations. Dr. Ghajar has made significant contributions to the field of thermal sciences through his experimental, empirical, and numerical works in heat transfer and stratification in sensible heat storage systems, heat transfer to non-Newtonian fluids, heat transfer in the transition region, and non-boiling heat transfer in two-phase flow. His current research is in two-phase flow heat transfer/pressure drop studies in pipes with different orientations, heat transfer/pressure drop in mini/micro tubes, and mixed convective heat transfer/pressure drop in the transition region (plain and enhanced tubes). Dr. Ghajar has been a Summer Research Fellow at Wright Patterson AFB (Dayton, Ohio) and Dow Chemical Company (Freeport, Texas). He and his co-workers have published over 200 reviewed research papers. He has delivered numerous keynote and invited lectures at major technical conferences and institutions.

He has received several outstanding teaching, research, advising, and service awards from the College of Engineering at Oklahoma State University. His latest significant awards are the 75th Anniversary Medal of the ASME Heat Transfer Division “in recognition of his service to the heat transfer community and contributions to the field,” awarded in 2013. He received the ASME ICNMM 2016 Outstanding Leadership Award, which recognizes a person whose service within the ICNMM (International Conference on Nanochannels, Microchannels, and Minichannels) is exemplary. He also received the 2017 Donald Q. Kern Award “in recognition of his outstanding leadership in the field of heat exchangers and two-phase flow, book and archival publications, and service to the academic and industrial professionals.” Dr. Ghajar is a Fellow of the American Society of Mechanical Engineers (ASME), Heat Transfer Series Editor for CRC Press/Taylor & Francis, and Editor-in-Chief of Heat Transfer Engineering, an international journal aimed at practicing engineers and specialists in heat transfer published by Taylor and Francis.

Yunus A. Çengel is Professor Emeritus of Mechanical Engineering at the University of Nevada, Reno. He received his B.S. in mechanical engineering from Istanbul Technical University and his M.S. and Ph.D. in mechanical engineering from North Carolina State University. His areas of interest are renewable energy, energy efficiency, energy policies, heat transfer enhancement, and engineering education. He served as the director of the Industrial Assessment Center (IAC) at the University of Nevada, Reno, from 1996 to 2000. He has led teams of engineering students to numerous manufacturing facilities in Northern Nevada and California to perform industrial assessments, and has prepared energy conservation, waste minimization, and productivity enhancement reports for them. He has also served as an advisor for various government organizations and corporations. 
Dr. Çengel is also the author or coauthor of the widely adopted textbooks Differential Equations for Engineers and Scientists (2013), Fundamentals of Thermal-Fluid Sciences (5th ed., 2017), Fluid Mechanics: Fundamentals and Applications (4th ed., 2018), Thermodynamics: An Engineering Approach (9th ed., 2019), and Heat and Mass Transfer: Fundamentals and Applications (6th ed., 2020), and all published by McGraw Hill LLC Education. Some of his textbooks have been translated into Chinese (Long and Short Forms), Japanese, Korean, Spanish, French, Portuguese, Italian, Turkish, Greek, Tai, and Basq. 
Dr. Çengel is the recipient of several outstanding teacher awards, and he has received the ASEE Meriam/Wiley Distinguished Author Award for excellence in authorship in 1992 and again in 2000. Dr. Çengel is a registered Professional Engineer in the State of Nevada, and is a member of the American Society of Mechanical Engineers (ASME) and the American Society for Engineering Education (ASEE).

About the author

The Editorial Team at Infolearners.com is dedicated to providing the best information on learning. From attaining a certificate in marketing to earning an MBA, we have all you need. If you feel lost, reach out to an admission officer.
Study on Scholarship Today -- Check your eligibility for up to 100% scholarship.

Leave a Comment