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Flow Boiling of a Dilute Emulsion In Smooth and Rough Microgaps

  • Book
  • © 2023

Overview

Authors:
  1. Brandon M. Shadakofsky

    1. Department of Mechanical Engineering, University of Minnesota, Minneapolis, USA

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    You can also search for this author in PubMed   Google Scholar

  2. Francis A Kulacki

    1. Department of Mechanical Engineering, University of Minnesota, Minneapolis, USA

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    You can also search for this author in PubMed   Google Scholar

  • This book elucidates heat transfer behavior for boiling dilute emulsions, including a thorough review of past research
  • Experiments include a systematic study of gap size, mass flux, and volume fraction effects on boiling in a microgap
  • Boiling physical phenomena are presented and a new nondimensional group is developed and used for correlation

Part of the book series: Mechanical Engineering Series (MES)

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Table of contents (7 chapters)

  1. Front Matter

    Pages i-xii
    Download chapter PDF

  2. Introduction

    • Brandon M. Shadakofsky, Francis A Kulacki
    Pages 1-5

  3. Experimentation and Procedure

    • Brandon M. Shadakofsky, Francis A Kulacki
    Pages 7-24

  4. Flow Boiling of Water in a Microgap

    • Brandon M. Shadakofsky, Francis A Kulacki
    Pages 25-42

  5. Flow Boiling of Dilute Emulsions in a Microgap

    • Brandon M. Shadakofsky, Francis A Kulacki
    Pages 43-76

  6. Flow Boiling on a Porous Surface

    • Brandon M. Shadakofsky, Francis A Kulacki
    Pages 77-101

  7. Physical Mechanisms and Correlation

    • Brandon M. Shadakofsky, Francis A Kulacki
    Pages 103-109

  8. Conclusion

    • Brandon M. Shadakofsky, Francis A Kulacki
    Pages 111-125

  9. Back Matter

    Pages 127-142
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Keywords

About this book

This book elucidates heat transfer behavior for boiling of dilute emulsions- mixtures of two immiscible fluids- which has received little attention to date. Of the work completed in this area, the majority has been focused on pool boiling where no mean flow is present, and this book is the first major work to be published regarding flow boiling of emulsions. The book includes a comprehensive review and assessment of research on emulsion-based heat transfer. Recent experiments are reported and analyzed to characterize heat transfer in microgap flow boiling via a systematic investigation into the effects of gap size, mass flux, and volume fraction on the heat transfer coefficient and pressure drop. The emulsion used in all experiments comprises droplets of an immiscible electronics cooling fluid suspended in water. The volume provides a complete baseline for flow boiling of water in the microgaps, enabling a determination of the enhancement of the heat transfer coefficient when thedisperse component is present. Moreover, a subset of the data set pertains to flow boiling of dilute emulsions over microporous surfaces. The flow conditions for which the microporous surfaces enhance or degrade heat transfer are presented. Finally, this book provides a discussion of the physical phenomena which affect boiling and a set of nondimensional numbers that can be used for correlation.


Authors and Affiliations

  • Department of Mechanical Engineering, University of Minnesota, Minneapolis, USA

    Brandon M. Shadakofsky, Francis A Kulacki

About the authors

Dr. Brandon M. Shadakofsky received his BS in Mechanical Engineering from the University of Wyoming. He then conducted his doctoral research under the guidance of Dr. Francis A Kulacki and received his PhD from the Department of Mechanical Engineering at the University of Minnesota. 


Dr. Francis A. Kulacki is a retired Professor in the Department of Mechanical Engineering at the University of Minnesota and distinguished awardee from- among other institutions- the American Society of Mechanical Engineering. His research interests included phase change phenomena and thermal management of electronic devices.

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