order

Symbols describe the classification of heat exchangers in Chapter 1

1. 1 Introduction 1

1.2 Classification according to heat transfer process4

1.2. 1 indirect contact heat exchanger 4

1.2.2 direct contact heat exchanger 7

1.3 Classification by number of media 7

1.4 Classification by surface compactness 8

1.4. 1 gas-liquid heat exchanger 10

1.4.2 liquid-liquid and phase change heat exchanger 1 1

1.5 Classification by structural features 1 1

1.5. 1 tube heat exchanger 12

1.5.2 plate heat exchanger 20

1.5.3 Extended surface heat exchanger 33

1.5.4 regenerator 42

1.6 classification by flow pattern 49

1.6. 1 single process heat exchanger 5 1

1.6.2 Multi-process heat exchanger 58

1.7 Classification according to heat transfer mechanism 66

Summary 66

Reference 66

Exercise 68, Chapter 2, Overview of Heat Exchanger Design Method

2. 1 heat exchanger design method 7 1

2. 1. 1 process and design description 73

2. 1.2 thermal and hydraulic design 75

2. 1.3 mechanical design 79

2. 1.4 manufacturing considerations and cost estimation 82

2. 1.5 weighting coefficient 84

2. 1.6 optimal design 85

2. 1.7 Other requirements 85

2.2 the relationship between various design requirements 85

Summary of design technology of XXVI catalogue heat exchanger

Reference 86

Exercise 86

Chapter 3 Question 87, Basic theory of thermal design of wall heat exchanger.

3. 1 The form of heat and electricity is similar to 89.

3.2 heat exchanger variables and thermal circuit 90

3.2. 1 heat transfer analysis hypothesis 9 1

Problem statement 92

Basic definition 95

Thermal circuit and UA97

3.3 ε-NTU method 103

3.3. 1 heat exchanger efficiency ε 104

3.3.2 heat capacity ratio C* 107

3.3.3 Number of heat transfer devices NTU 108

3.4 Relationship between efficiency and number of heat transfer units 1 10

3.4. 1 countercurrent heat exchanger

3.4.2 Heat exchangers with other flow arrangements 1 17

3.4.3 Interpretation of ε-NTU Result 120

3.4.4 Flow symmetry 122

3.5P—NTU method 127

Temperature efficiency P 139

3.5.2 Number of heat transfer devices NTU 139

3.5.3 heat capacity ratio R 140

3.5.4 Total P-NTU function relation 140

3.6P—NTU relation 14 1

3.6. 1 parallel countercurrent heat exchanger, shell-side fluid mixing, 1.2 TEMA E shell 14 1.

3.6.2 Multi-process heat exchanger 147

3.7 average temperature difference method 168

3.7. 1 logarithmic mean temperature difference 168

3.7.2 logarithmic mean temperature difference correction coefficient 169

3.8 coefficient of different flow arrangements 172

3.8. 1 countercurrent heat exchanger 172

Parallel flow heat exchanger 173

3.8.3 Other basic process arrangements 173

3.8.4 Heat exchanger array and multiple processes 182

3.9 Comparison of ε-NTU, P-NTU and Average Temperature Difference Method 187

3.9. 1 Solve the size problem and check 187

27 3.9.2 ε-NTU method 188

3.9.3 p-NTU method 189

3.9.4 Average temperature difference method 189

3. 10 ψ-P and P 1-P2 method 190

3. 10. 1 ψ-P method 190

3. 10.2 p 1 P2 method 190

3. 1 1 Solution to determine the effectiveness of heat exchanger 192

3. 1 1. 1 accurate analysis method 193

3. 1 1.2 approximation method 193

3. 1 1.3 numerical method 193

3. 1 1.4 matrix method 193

3. 1 1.5 chain rule methodology 193

3. 1 1.6 Reverse symmetry of flow 194

3. 1 1.7 Rules for solving the effectiveness of fluid mixing heat exchangers 195

3. 12 Design of Heat Exchanger 196

Overview 199

Reference 199

Exercise 200

Question 205, Chapter 4, Additional Considerations for Thermal Design of Wall Heat Exchangers

4. 1 Axial heat conduction effect of heat transfer surface 209

4. 1. 1C。 =0 heat exchanger 2 12

4. 1.2 unidirectional countercurrent heat exchanger 2 13

4. 1.3 unidirectional parallel flow heat exchanger 2 15

4. 1.4 single-channel unmixed cross-flow heat exchanger 2 15

4. 1.5 Other one-way heat exchangers 2 16

4. 1.6 Multi-pass heat exchanger 2 16

4.2 Inconsistency of Total Heat Transfer Coefficient 220

Temperature effect 224

Length effect 225

4.2.3 Comprehensive effect

4.3 Other considerations of extended surface heat exchanger 233

4.3. 1 Analysis of Thin-walled Parts/kloc-0 /46666.666666668666

4.3.2 Fin Efficiency 245

4.3.3 Fin Efficiency 260

XXVIII4.3.4 Extended surface efficiency 26 1

4.4 Other considerations of shell-and-tube heat exchanger 263

4.4. 1 bypass and shell-side fluid leakage 264

4.4.2 Unequal heat transfer area in the flow channel of a single heat exchanger 268

4.4.3 Limited number of baffles 269

Summary 270

Reference document 270

Exercise 27 1

Chapter 5 thermal design theory of regenerative heat exchanger

5. 1 heat transfer analysis 278

5. 1. 1 heat transfer analysis hypothesis of regenerative heat exchanger 278

5. 1.2 Definition and explanation of important parameters 280

5. 1.3 governing equation 282

5.2 ε-Ntu0 method 285

5.2. 1 dimension is a set of 285.

5.2.2 Influence of internal rotation and valve switching frequency 289

5.2.3 Convective conductivity (hectare) *290

5.2.4 ε-NTU 0290 in countercurrent regeneration heat exchanger

5.2.5 ε-Ntu0 method in downstream regenerative heat exchanger 293

5.3 λ-π method 305

5.3. Comparison between1ε-ntu0 method and λ-π method 309

5.3.2 Solution of 3 12 countercurrent regenerative heat exchanger

5.3.3 Solution of downstream regenerative heat exchanger 3 13

5.4 Influence of longitudinal wall heat conduction 3 16

5.5 Influence of transverse heat conduction 323

5.6 Influence of pressure and entrainment leakage 327

5.7 Influence of material, size and arrangement of heat storage plate 334

Summary 339

Reference document 340

Exercise 340

Chapter VI Pressure Drop Analysis of Heat Exchanger

6. 1 Introduction 345

6. 1. 1 Importance of pressure drop 345

XXIX6. 1.2 fluid conveying device 346

6. 1.3 Main components of pressure drop of heat exchanger 347

6. 1.4 pressure drop analysis hypothesis 348

6.2 Pressure drop of expansion surface heat exchanger 348

6.2. 1 plate-fin heat exchanger 348

Finned tube heat exchanger 357

6.3 Pressure Drop of Regenerator 358

6.4 Pressure drop of shell-and-tube heat exchanger 358

6.4. 1 tube bundle

6.4.2 Shell and tube heat exchanger 358

6.5 The pressure drop of plate heat exchanger is 36 1

6.6 Pressure drop generated by fluid distribution element 363

Pipeline loss 363

6.6.2 Sudden expansion and contraction losses 364

Bending loss 367

6.7 Pressure Drop Expression 375

6.7. The dimension of1pressure drop data is expression 375.

6.7.2 Dimensional expression of pressure drop data 376

6.8 Pressure Drop Caused by Geometry and Fluid Properties 380

Overview 38 1

Reference 38 1

Exercise 382

Chapter VII Basic Heat Transfer and Flow Characteristics of Surfaces

7. 1 Basic concepts 387

7. 1. 1 boundary layer 387

7. 1.2 Flow Type 389

7. 1.3 Free convection and forced convection 398

7. 1.4 Basic Definitions 398

7.2 The size is 400 sets.

Fluid flow 402

Heat transfer 404

7.2.3 Size is a surface characteristic function 407.

7.3 Experimental Method of Surface Characteristics 408

7. 3. 1 day and London's steady-state method 409

XXX7.3.2 Wilson Cartography 4 17

7.3.3 Transient Test Method 422

7.3.4 Determination of friction coefficient 427

7.4 Analytical solution of heat transfer and friction coefficient under simple geometry and semi-empirical correlation 429

7.4. 1 Complete the development process 430

7.4.2 Hydraulic Development Process 452

7.4.3 Thermal Development Process 454

7.4.4 Parallel Development Process 459

7.4.5 Extended Reynolds Analogy 46 1

7. 4. 6J-Re Limitations of Drawing 463

7.5 Experimental Correlation of Heat Transfer and Friction Coefficient under Complex Geometry 463

7.5. 1 tube bundle 464

7.5.2 Surface of plate heat exchanger 466

7.5.3 Plate fin extension surface 467

7.5.4 Tube fin extension surface 470

7.5.5 Regenerator Surface 474

7.6 Influence of fluid parameters with temperature change 480

7.7 Influence of superimposed natural convection 482

7.7. 1 horizontal circular tube 483

7.7.2 Vertical circular tube 485

7.8 Effects of superimposed radiation 487

7.8. 1 liquid as participating medium 487

7.8.2 Gas as Participating Medium 488

Summary 493

Reference 494

Exercise 498

Chapter VIII Geometric Characteristics of Heat Exchange Surfaces

8. 1 tube heat exchanger 5 10

8. 1. 1 in-line arrangement 5 10

8. 1.2 staggered arrangement 5 12

8.2 Finned tube heat exchanger 5 15

8.2. 1 circular tube and fin 5 16

8.2.2 Flat fin of circular tube 5 18

8.2.3 General geometric relationship of finned tube heat exchanger 5 19

XXXI8.3 Plate-fin heat exchanger 520

8.3. 1 staggered fin heat exchanger 520

8.3.2 Corrugated louver fin heat exchanger 525

8.3.3 General geometric relationship of plate-fin surface 528

8.4 Regenerator with continuous columnar channel 529

8.5 Bow baffle shell-and-tube heat exchanger 532

8.5. 1 Calculation of the number of pipes 532

8.5.2 Gap and Cross-flow Section Geometry 533

Bypass and leakage area 536

8.6 Sealed Plate Heat Exchanger 540

Overview 54 1

Reference 54 1

Exercise 542 Chapter 9 Heat Exchanger Design Procedure

9. 1 Average temperature of liquid 544

9. 1. 1 heat exchanger meets C *≈0.545.

9. 1.2 Countercurrent and Crossflow Heat Exchanger 546

9. 1.3 multichannel heat exchanger 547

9.2 Plate-fin heat exchanger 548

9.2. 1 Check the problem 548

9.2.2 Dimension design problem 558

9.3 Finned tube heat exchanger 570

Geometric characteristics of the heat transfer surface 570

9.3.2 Heat transfer calculation 570

9.3.3 Calculation of pressure drop 570

9.3.4 core mass velocity equation 57 1

9.4 plate heat exchanger 57 1

9.4. 1 design limit case 57 1

9.4.2PHE uniqueness of phe check and size design 574

Check a PHE576.

9.4.4 Size design of PHE583

9.5 shell-and-tube heat exchanger 583

Heat transfer and pressure drop calculation 584

9.5.2 Inspection Process 587

9.5.3 Approximate design method 594

9.5.4 More stringent thermal design method597

Optimization of XXXII9.6 heat exchanger 602

Abstract 605

Reference document 605

Exercise 606

Question 607 Chapter 10 Selection of heat exchanger and its components

10. 1 Selection criteria based on operating parameters 6 1 1

10. 1. 1 working pressure and temperature 6 12

10. 1.2 Cost 6 12

10.10.3 descaling and cleaning 6 16

10. 1.4 liquid leakage and pollution 16

10.10.5 Compatibility of fluids and materials 6 16

10. 1.6 fluid type 6 18

10.2 general selection guide for main heat exchanger types 6 18

10. 2. 1 shell and tube heat exchanger 18

Plate heat exchanger 63 1

10.2.3 extended surface heat exchanger 632

10.2.4 regenerator surface 637

10.3 Some quantitative analysis 637

1 screening method 638

10.3.2 performance evaluation criteria 650

10.3.3 Evaluation criteria based on the second law of thermodynamics 659

10.3.4 Selection criteria based on cost assessment 659

Overview 66 1

Reference 662

Exercise 663

Question 667 Chapter 1 1 Thermal model and analysis

1 1. 1 Introduction 670

11.1.1heat exchanger as part of system 672.

1 1. 1.2 heat exchanger as part 672.

1 1.2 heat exchanger modeling based on the first law of thermodynamics 673

1 1.2. 1 temperature distribution of counter-current and co-current heat exchanger 673

The real meaning of heat exchanger effectiveness 678

XXXIII 1 1.2.3 Temperature difference distribution of downstream and countercurrent heat exchangers 68 1

1 1.2.4 temperature distribution of cross-flow heat exchanger 682

Irreversibility in heat exchanger 1 1.3 687

1 1.3. 1 entropy production caused by finite temperature difference 689

1 1.3.2 Entropy related to fluid mixing produces 69 1

1 1.3.3 entropy production caused by flow resistance586661

1 1.4 thermal irreversibility and temperature crossing phenomenon 695

1 1.4. 1 maximum entropy production 695

1 1.4.2 analogy of external temperature crossing and fluid mixing 697

On the thermal analysis of 1.2 TEMA J shell-and-tube heat exchanger 1 1.4.3/20000.0000000000005

Exploratory method for evaluating heat exchanger efficiency 703

1 1.6 balance of energy, energy and cost in heat exchange analysis and optimization/kloc-0 /5666.5666666666666

1 1.6. 1 temperature-enthalpy change rate table 707

1 1.6.2 Analysis based on energy balance

1 1.6.3 Analysis based on the balance between energy or enthalpy and cost rate

1 1.6.4 Analysis basis. Interest rate balance 3 15

1 1.6.5 Thermal performance coefficient for evaluating heat exchanger performance 7 17

1 1.6.6 illustrates the loss cost of the heat exchanger 720.

1 1.7 Performance evaluation criteria based on the second law of thermodynamics 724

Abstract 728

Reference 729

Exercise 73 1

Q&A 732 Chapter 12 Uneven Flow Distribution and Box Design

The geometry of the heat exchanger 736 leads to uneven flow distribution.

12. 1. 1 uneven overall flow distribution 737

The flow distribution between 12. 1.2 flow channels 748 is uneven.

12. 1.3 uneven fluid distribution caused by header 759

12.2 uneven flow distribution caused by operating conditions 762

12.2. 1 unstable flow of liquid cooler 763

12.2.2 Uneven flow distribution under the condition of stable flow 768

12.3 Measures to reduce uneven flow distribution 769

12.4 design of pipe box and header 770

12.4. 1 inclined tube box 772

12.4.2 main management box 776

XXXIV 12.4.3 Title 776

XIX. Summary 777

Reference 778

Exercise 780

Question 783 Chapter 13 Dirt and Corrosion

Fouling in 13. 1 and its influence on heat transfer and pressure drop of heat exchangers120666.2006666666666

13.2 phenomenological thinking about dirt 790

13.2. 1 fouling formation mechanism 790

13.2.2 single-phase liquid side dirt 794

13.2.3 single-phase gas side dirt 794

13.2.4 there is dust in the compact heat exchanger 795.

13.2.5 continuous process in dirt 795

13.2.6 Modeling of scaling process 797

13.3 design method of fouling thermal resistance 803

13.3. 1 Calculation of fouling thermal resistance and total heat transfer coefficient 803

13.3.2 Influence of fouling on heat transfer performance of heat exchanger 804

13.3.3 empirical data of fouling thermal resistance 808

13.4 Prevention and slow release of fouling 8 12

13. 4. 1 prevention and control of liquid side scaling 12

13.4.2 Preventing and reducing gas side scaling 8 13

Cleaning measures 8 14

Corrosion of 13.5 heat exchanger 8 15

Corrosion type 8 16

13.5.2 Corrosion area in heat exchanger 8 17

13.5.3 corrosion control

Summary 8 19

Reference 820

Exercise 820

Q&A Appendix 823

Appendix a thermophysical properties 826

Appendix B Relationship of ε-NTU in Liquid Coupled Heat Exchanger 83 1

Reference 832 in appendix b

Appendix C Relationship between Two-phase Heat Transfer and Pressure Drop 833

C. 1 voltage drop correlation 833

C.2 heat transfer correlation during condensation 836

C.3 heat transfer correlation during boiling 836

Reference 838 in appendix c

Appendix d u value and CUA value in various heat exchangers 839

Heat exchanger or heat exchanger related reference 847