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Flow boiling of a dilute emulsion in smooth and rough microgaps

Record Type:	Electronic resources : Monograph/item
Title/Author:	Flow boiling of a dilute emulsion in smooth and rough microgapsby Brandon M. Shadakofsky, Francis A Kulacki.
Author:	Shadakofsky, Brandon M.
other author:	Kulacki, Francis A.
Published:	Cham :Springer International Publishing :2023.
Description:	xii, 142 p. :ill. (some col.), digital ;24 cm.
Contained By:	Springer Nature eBook
Subject:	Ebullition.
Online resource:	https://doi.org/10.1007/978-3-031-27773-3
ISBN:	9783031277733$q(electronic bk.)

Flow boiling of a dilute emulsion in smooth and rough microgaps
Shadakofsky, Brandon M.

Flow boiling of a dilute emulsion in smooth and rough microgaps[electronic resource] /by Brandon M. Shadakofsky, Francis A Kulacki. - Cham :Springer International Publishing :2023. - xii, 142 p. :ill. (some col.), digital ;24 cm. - Mechanical engineering series,2192-063X. - Mechanical engineering series..

Introduction -- Experimental apparatus and procedure -- Flow boiling of water on smooth surfaces -- Flow boiling of FC-72/water emulsions on smooth surfaces -- Flow boiling on microporous surfaces -- Conclusion.

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 the disperse 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. Presents a comprehensive investigation of flow boiling of water in a microgap channel which serves as a basis for assessment of the effect of a dilute emulsion on boiling heat transfer. Presents a comprehensive investigation of flow boiling of an FC72-in-water dilute emulsion in a microgap channel. Presents new measurements of the effects of emulsion volume fraction, gap height and mass flux on heat transfer and pressure drop. Presents a systematic investigation of microporous coatings on flow boiling in a microgap. Quantifies the range of wall temperature for which heat transfer enhancement is achieved for the dilute emulsion. A new dimensionless group accounts for the ratio of sensible heat transfer to the continuous component advected from the wall to conduction through a film of droplets. Correlation of the heat transfer coefficient for the entire data set is obtained with 95.7 percent of the measurements falling within ±10% of the predicted values.

ISBN: 9783031277733$q(electronic bk.)

Standard No.: 10.1007/978-3-031-27773-3doiSubjects--Topical Terms:

265597
Ebullition.

LC Class. No.: TJ265

Dewey Class. No.: 536.44

Flow boiling of a dilute emulsion in smooth and rough microgaps
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520 $a 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 the disperse 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. Presents a comprehensive investigation of flow boiling of water in a microgap channel which serves as a basis for assessment of the effect of a dilute emulsion on boiling heat transfer. Presents a comprehensive investigation of flow boiling of an FC72-in-water dilute emulsion in a microgap channel. Presents new measurements of the effects of emulsion volume fraction, gap height and mass flux on heat transfer and pressure drop. Presents a systematic investigation of microporous coatings on flow boiling in a microgap. Quantifies the range of wall temperature for which heat transfer enhancement is achieved for the dilute emulsion. A new dimensionless group accounts for the ratio of sensible heat transfer to the continuous component advected from the wall to conduction through a film of droplets. Correlation of the heat transfer coefficient for the entire data set is obtained with 95.7 percent of the measurements falling within ±10% of the predicted values.
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