Advances in Heat Transfer

Heat transfer is the exchange of heat energy between a system and its surrounding environment, which results from a temperature difference and takes place by means of a process of thermal conduction, mechanical convection, or electromagnetic radiation.Advances in Heat Transfer is designed to fill the information gap between regularly scheduled journals and university-level textbooks by providing in-depth review articles over a broader scope than is allowable in either journals or texts.

Contributors

ix

Preface

xi

Thermal Performance Testing of Industrial Heat Exchangers

Thomas Lestina

Kenneth Bell

Introduction

2

(9)

Overview of Testing Needs and Capabilities

2

(2)

Industrial Operating Conditions

4

(2)

Description of a Thermal Model

6

(5)

Test Methods

11

(8)

Industrial Process Measurements

11

(3)

General Test Measurement Approach

14

(4)

Assessment of Test Quality

18

(1)

Analysis of Results

19

(15)

Experimental Heat Exchange Methods

19

(6)

Sources of Analysis Error

25

(9)

Uncertainty Assessment

34

(11)

Evaluating Experimental Uncertainty

35

(1)

Evaluating Uncertainty of Industrial Tests

36

(9)

Conclusions and Future Work

45

(13)

Nomenclature

47

(2)

References

49

(9)

Boiling Heat Transfer and Bubble Dynamics in Microgravity

Johannes Straub

Introduction

58

(4)

Importance of Fluid Studies under Microgravity

58

(2)

Short Historical Review

60

(1)

Application

61

(1)

Compensation of Earth Gravity

62

(7)

Principle of Compensation

62

(1)

Drop Towers and Drop Shafts

63

(2)

Parabolic Trajectories

65

(4)

Boiling Curve at 1-g and μ-g

69

(7)

Newton's Law of Heat Transfer

69

(1)

Boiling Regimes

70

(3)

Influence of Gravity on Boiling Correlations

73

(3)

Realization of Experiments

76

(5)

Limitations

76

(1)

Multiuser Facility

77

(2)

Experimental Equipment

79

(1)

Heater Elements

80

(1)

Heat Transfer at Saturated Nucleate Boiling

81

(25)

Wires as Heating Elements

81

(15)

Small Surfaces

96

(5)

Plane Plate Surface

101

(5)

Heat Transfer at Subcooled Nucleate Boiling

106

(13)

General Observations

106

(1)

Subcooled Heat Transfer on Wires

107

(1)

Subcooled Heat Transfer on Small Surfaces

108

(3)

Direct Electrical Heated Flat Plate

111

(8)

Critical Heat Flux

119

(4)

Film Boiling

123

(4)

Conclusions Drawn from Microgravity Boiling

127

(1)

Bubble Growth Model

128

(8)

Development of a Microwedge

128

(4)

Capillary-Adhesion Flow

132

(4)

Bubble and Boiling Dynamics

136

(25)

Analytical Bubble Growth Models in Homogeneous Liquid

136

(3)

Bubble Detachment in Saturated Liquids

139

(8)

Dynamics in Subcooled Boiling

147

(11)

Dynamics and Instability of CHF

158

(3)

Why Enhancement? Why Diminution?

161

(4)

Reasons for Heat Transfer Enhancement

161

(3)

Influencing Factors for Deterioration

164

(1)

Application of Boiling in Microgravity

165

(1)

Conclusions and Future Perspectives

166

(7)

Nomenclature

167

(1)

References

168

(5)

Heat Transfer and Fluid Flow in Rotating Sealed Cavities

Wei Shyy

Michael P. Ebert

Introduction

173

(7)

Infinite Rotating Disk Flows

180

(5)

Finite Unshrouded Disk Systems

185

(2)

Isothermal Sealed Cavities

187

(19)

Rotor-Stator

187

(11)

Contrarotating

198

(8)

Sealed Cavities with an Imposed Thermal Gradient

206

(10)

Two-Equation Turbulence Model and Low Reynolds Number Effects

216

(9)

Turbulence Modeling for Rotational Effects

225

(16)

The Turbulent Transport Equations with Rotational Effects

227

(2)

Displaced Particle Analysis

229

(2)

Simplified Reynolds-Stress Analysis

231

(2)

Modeling Concepts for Treating Rotational Effects

233

(2)

Numerical Assessment of Rotational Effect

235

(6)

Numerical Convergence Considerations

241

(3)

Concluding Remarks

244

(5)

Appendix: Summary of Sealed Cavity Investigations

244

(2)

References

246

(3)

Recent Advances in the Modeling and Applications of Nonconventional Heat Pipes

Suresh V. Garimella

C. B. Sobhan

Introduction

249

(2)

Thermal Analysis

251

(20)

Conventional Designs

251

(5)

Nonconventional Designs

256

(15)

Thermodynamics and Fundamental Aspects

271

(5)

Heat Pipe Startup from the Frozen State

276

(3)

Discrete Heat Sources at the Evaporator

279

(1)

Heat Pipe Applications

280

(5)

Micro Heat Pipes

285

(9)

Thermosyphons

294

(3)

Capillary Pumped Loops

297

(1)

Inventions and Patents

298

(1)

Closure

299

(10)

Nomenclature

301

(1)

References

302

(7)

Author Index

309

(8)

Subject Index

317

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Advances in Heat Transfer

Summary

Table of Contents

Supplemental Materials

FREE SHIPPING

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5% off 1 book, 7% off 2 books, 10% off 3+ books

Advances in Heat Transfer

Summary

Table of Contents

Supplemental Materials

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