Flow Boiling in Expanding Microchannels
This Brief presents an up to date summary of details of the flow boiling heat transfer, pressure drop and instability characteristics; two phase flow patterns of expanding microchannels. Results obtained from the different expanding microscale geometries
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Tamanna Alam Poh-Seng Lee
Flow Boiling in Expanding Microchannels
123
SpringerBriefs in Applied Sciences and Technology Thermal Engineering and Applied Science
Series editor Francis A. Kulacki, Minneapolis, MN, USA
More information about this series at http://www.springer.com/series/8884
Tamanna Alam • Poh-Seng Lee
Flow Boiling in Expanding Microchannels
Tamanna Alam Department of Mechanical Engineering University of South Carolina Columbia, SC, USA
Poh-Seng Lee Department of Mechanical Engineering National University of Singapore Singapore, Singapore
ISSN 2191-530X ISSN 2191-5318 (electronic) SpringerBriefs in Applied Sciences and Technology ISSN 2193-2530 ISSN 2193-2549 (electronic) SpringerBriefs in Thermal Engineering and Applied Science ISBN 978-3-319-55031-2 ISBN 978-3-319-55032-9 (eBook) DOI 10.1007/978-3-319-55032-9 Library of Congress Control Number: 2017937535 © The Author(s) 2017 This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher nor the authors or the editors give a warranty, express or implied, with respect to the material contained herein or for any errors or omissions that may have been made. The publisher remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. Printed on acid-free paper This Springer imprint is published by Springer Nature The registered company is Springer International Publishing AG The registered company address is: Gewerbestrasse 11, 6330 Cham, Switzerland
Preface
Two-phase flow boiling instability is an intricate fluid physics phenomena that occurs due to simultaneously coupled interactions between several effects such as nucleation, rapid bubble growth, coalescence, fragmentation, pressure drop, CHF, and surface rewetting. These instabilities may arise both in conventional size channels and in a parallel array of multiple micro/mini-channels. For the case of microscale geometries, limitation in hydraulic diameter compels the bubbles to grow only along axial direction, and hence instabilities are more prominent in such systems. Currently, flow boiling in microscale domain is one of the most effective cooling techniques for high power
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