Advances in Heat Transfer (eBook)

Cover 1
Copyright Page 5
Contents 6
Contributors 10
Preface 12
Chapter 1. Thermal Performance Testing of Industrial Heat Exchangers 14
I. Introduction 15
II. Test Methods 24
III. Analysis of Results 32
IV. Uncertainty Assessment 47
V. Conclusions and Future Work 58
Nomenclature 60
References 62
Chapter 2. Boiling Heat Transfer and Bubble Dynamics in Microgravity 70
I. Introduction 71
II. Compensation of Earth Gravity 75
III. Boiling Curve at 1-g and u-g 82
IV. Realization of Experiments 89
V. Heat Transfer at Saturated Nucleate Boiling 94
VI. Heat Transfer at Subcooled Nucleate Boiling 119
VII. Critical Heat Flux 132
VIII. Film Boiling 136
IX. Conclusions Drawn from Microgravity Boiling 140
X. Bubble Growth Model 141
XI. Bubble and Boiling Dynamics 149
XII. Why Enhancement? Why Diminution? 174
XIII. Application of Boiling in Microgravity 178
XIV. Conclusions and Future Perspectives 179
Nomenclature 180
References 181
Chapter 3. Heat Transfer and Fluid Flow in Rotating Sealed Cavities 186
I. Introduction 186
II. Infinite Rotating Disk Flows 193
III. Finite Unshrouded Disk Systems 198
IV. Isothermal Sealed Cavities 200
V. Sealed Cavities with an Imposed Thermal Gradient 219
VI. Two-Equation Turbulence Model and Low Reynolds Number Effects 229
VII. Turbulence Modeling for Rotational Effects 238
VIII. Numerical Convergence Considerations 254
IX. Concluding Remarks 257
Appendix. Summary of Sealed Cavity Investigations 257
References 259
Chapter 4. Recent Advances in the Modeling and Applications of Nonconventional Heat Pipes 262
I. Introduction 262
II. Thermal Analysis 264
III. Thermodynamics and Fundamental Aspects 284
IV. Heat Pipe Startup from the Frozen State 289
V. Discrete Heat Sources at the Evaporator 292
VI. Heat Pipe Applications 293
VII. Micro Heat Pipes 298
VIII. Thermosyphons 307
IX. Capillary Pumped Loops 310
X. Inventions and Patents 311
XI. Closure 312
Nomenclature 314
References 315
Author Index 322
Subject Index 330