The last few decades have seen huge developments in the use of concentrated solar power plants, communications technologies (mobile telephony and 5G networks), the nuclear sector with its small modular reactors and concentrated solar power stations. These developments have called for a new generation of heat exchangers.
As well as presenting conventional heat exchangers (shell-and-tube and plate heat exchangers), their design techniques and calculation algorithms, Heat Exchangers introduces new-generation compact heat exchangers, including printed circuit heat exchangers, plate-fin heat exchangers, spiral heat exchangers, cross-flow tube-fin heat exchangers, phase-change micro-exchangers, spray coolers, heat pipe heat exchangers and evaporation chambers.
This new generation of heat exchangers is currently undergoing a boom, with applications in on-board equipment in aircraft, locomotives, space shuttles and mobile phones, where the volume of the equipment is one of the most important design parameters.
Table of Contents
Introduction xi
Chapter 1 Available Technologies 1
1.1 Introduction 1
1.2 The simplest form of heat exchanger: single-tube or coaxial 1
1.3 Shell-and-tube heat exchangers 2
1.4 Coil-in-tank heat exchangers 3
1.5 Compact heat exchangers 5
1.6 Rotary regenerative heat exchangers 15
1.7 Phase-change heat exchangers 16
1.8 Heat exchangers for power electronics 23
Chapter 2 Tubular Heat Exchanger Design 33
2.1 Introduction 33
2.2 Coaxial tubular heat exchangers 34
2.3 Tubular coil-in-tank heat exchangers 34
2.4 Multitube heat exchanger technology 36
2.5 Flow in a tubular heat exchanger 46
2.6 Position of transverse baffles and flow parameters 48
2.7 Calculation of the Reynolds number for flow in the shell 54
3 Compact Heat Exchanger Design 59
3.1 Introduction 59
3.2 General parameters of compact heat exchangers 60
3.3 Finned-tube compact heat exchanger technology and design 62
3.4 Plate-fin heat exchanger technology and design 67
3.5 Plate heat exchanger technology and design 73
3.6 Spiral heat exchanger technology 81
3.7 Printed-circuit heat exchanger technology and design 84
3.8 New developments in compact heat exchangers 89
Chapter 4 Heat Exchanger Selection, and Sizing Parameters 91
4.1 Introduction 91
4.2 Choosing the type of heat exchanger to be used 92
4.3 Selection of fluid circuits: which fluid for what side? 96
4.4 Choosing the flow configuration 97
4.5 Illustration: choosing a heat exchanger and determining its thermal schedule 97
4.6 Sizing, a complex problem 99
Chapter 5 Sizing Methods 109
5.1 Introduction 109
5.2 Analysis of temperature profiles in an exchanger 110
5.3 Overall heat transfer coefficient 112
5.4 Illustration: overall heat transfer coefficient for a fouled exchanger 119
5.5 Calculation of the heat flux transferred 122
5.6 Method based on the calculation of efficiency: NTU method 124
5.7 Method based on logarithmic mean temperature difference 138
Chapter 6 Sizing Algorithms for Heat Exchangers 153
6.1 Introduction 153
6.2 Principle of heat exchanger sizing 154
6.3 Calculation algorithm for multitube heat exchangers 155
6.4 Illustration: implementation of the shell-and-tube algorithm 162
6.5 Calculation algorithm for cross-flow heat exchangers 175
6.6 Illustration: sizing of car radiators 185
6.7 Calculation algorithm for plate heat exchangers 197
6.8 Illustration: implementation of the plate heat exchanger algorithm 202
6.9 Calculation algorithm for spiral heat exchangers 211
6.10 Illustration: implementation of the spiral heat exchanger algorithm 213
6.11 Calculation algorithm for printed-circuit heat exchangers 221
6.12 Illustration: implementation of the PCHE calculation algorithm 225
Appendices 233
Appendix 1 Database 235
Appendix 2 Calculation of Convection Heat Transfer Coefficients in Exchangers 269
Appendix 3 Calculation of Pressure Drops in Exchangers 299
Appendix 4 Fouling of Heat Exchangers 315
Appendix 5 Nomenclature 321
References 327
Index 339
