About Book

Heat transfer is the exchange of thermal energy between physical systems, depending on the temperature and pressure, by dissipating heat. Mass transfer is the net movement of mass from one location, usually meaning stream, phase, fraction or component, to another. Heat transfer and mass transfer are kinetic processes that may occur and be studied separately or jointly. Studying them apart is simpler, but both processes are modelled by similar mathematical equations in the case of diffusion and convection and it is thus more efficient to consider them jointly. Besides, heat and mass transfer must be jointly considered in some cases like evaporative cooling and ablation. Typical heat-transfer devices are heat exchangers, condensers, boilers, solar collectors, heaters and furnaces. This book unfolds the innovative aspects of heat transfer which will be crucial for the holistic understanding of the subject of heat transfer. It deals with nanofluids, cross-diffusion effects, absorption, bivariate, fluid flows, micropolar fluid, chemical reaction, manufacturing processes, heat exchangers, climate control and casson fluid. It is designed in such a way that it provides a detailed explanation of the various concepts and applications of this subject matter. The aim of this book is to make the complex subject of heat transfer easy to comprehend and understand. The topics included in this area of utmost significance and bound to provide incredible insights to readers. The various applications along with technological progress that have future implications are glanced at in it. It will greatly assist students in the fields of chemical engineering kinetics and computational modelling.

Preface............................................................................................................v

Chapter 1 CFD Simulation of Heat and Mass Transfer for Climate Control

in Greenhouses............................................................................................1

Abstract...................................................................................................1

1. Introduction............................................................................................2

2. Computational fluid dynamics (CFD) in a greenhouse

simulation...............................................................................................3

3. Heat and mass transfer equations and CFD simulations.............5

4. CFD simulations in greenhouses.......................................................8

5. Conclusions..........................................................................................17

Chapter 2 Heat and Mass Transfer in Outward Convex Corrugated Tube

Heat Exchangers........................................................................................22

Abstract.................................................................................................22

1. Introduction..........................................................................................23

2. Performances of outward convex corrugated tube heat

exchangers............................................................................................25

3. Heat and mass transfer at outward convex corrugated tube heat

exchangers............................................................................................32

4. Heat and mass transfer enhancement of outward convex

corrugated tube heat exchangers.....................................................39

5. Optimization of outward convex corrugated tube heat

exchangers............................................................................................43

6. Conclusions..........................................................................................50

Acknowledgements.............................................................................51

Conflict of interest..............................................................................51

Chapter 3 Heat and Mass Transfer of Additive Manufacturing Processes

for Metals....................................................................................................54

Abstract.................................................................................................54

1. Introduction..........................................................................................55

2. Effect of processing parameters on forming defects during

selective laser melting of AlSi10Mg powder.................................55

3. Numerical investigation of thermocapillary-induced deposited

shape in MFCAM of aluminum alloy............................................70

4. Conclusions..........................................................................................84

Acknowledgements.............................................................................85

Chapter 4 The Heat and Mass Transfer Analysis During Bunch Coating of a

Stretching Cylinder by Casson Fluid..................................................88

Abstract.................................................................................................88

1. Introduction..........................................................................................89

2. Formulation..........................................................................................90

3. Solution by homotopy analysis method..........................................93

4. Zeroth-order deformation problem.................................................94

5. wth order deformation problem.......................................................95

6. Discussion about graphical results..................................................96

7. Conclusion..........................................................................................103

Chapter 5 On a New Numerical Approach on Micropolar Fluid, Heat and

Mass Transfer Over an Unsteady Stretching Sheet Through Porous

Media in the Presence of a Heat Source/Sink and Chemical

Reaction ...................................................................................................107

Abstract...............................................................................................107

1. Introduction................................................................................................108

2. Mathematical formulation...............................................................110

3. Similarity analysis.............................................................................111

4. Method of solution...........................................................................113

5. Results and discussion.....................................................................116

6. Conclusions........................................................................................127

Chapter 6 On the New Bivariate Local Linearisation Method for Solving

Coupled Partial Differential Equations in Some Applications of

Unsteady Fluid Flows with Heat and Mass Transfer ..................132

Abstract...............................................................................................132

1. Introduction................................................................................................133

2. Governing equations........................................................................134

3. Derivation of solution method.......................................................135

4. Results and discussion.....................................................................139

5. Conclusion..........................................................................................143

Chapter 7 Modeling of Heat and Mass Transfer and Absorption-Condensation Dust and Gas Cleaning in Jet Scrubbers ........................................146

1. Introduction........................................................................................146

2. Problem statement, main equations and assumptions..............147

3. Numerical implementation of the model, comparison of

calculation results with experimental data..................................152

4. The choice of the value of calculated concentration difference for

the absorbed gas component..........................................................170

5. Conclusions........................................................................................173

Nomenclature ...................................................................................174

Chapter 8 Heat and Mass Transfer from an Inverted Cone in a Porous Medium with Cross-Diffusion Effects...............................................177

1. Introduction................................................................................................177

2. Flow over a smooth cone in porous medium............................179

3. Flow over a wavy cone in porous media....................................190

4. Conclusions........................................................................................200

Chapter 9 Heat and Mass Transfer in External Boundary Layer Flows Using Nanofluids ...............................................................................................205

1. Introduction................................................................................................205

2. Mathematical formulation ..............................................................207

3. Thermophysical properties of nanofluids....................................211

4. Results ................................................................................................212

5. Conclusion..........................................................................................225

6. Nomenclature.....................................................................................226

Citation......................................................................................................231

Index...........................................................................................................233

About Author

Lanying Jenkins pursued her Ph.D. in Thermal and Fluid Engineering from Public Research University, Enschede. She is an Assistant Professor at Open Research University, Cork. She has wide-ranging areas of academic interests, which include classical thermodynamics, laws of thermodynamics and quantum thermodynamics. She has authored and edited a number of journal papers and books in the field of thermodynamics and heat transfer. She is an active member of several scientific and technical societies.