Orifice Plates and Venturi Tubes
This book gives the background to differential-pressure flow measurement and goes through the requirements explaining the reason for them. For those who want to use an orifice plate or a Venturi tube the standard ISO 5167 and its associated Technical Repo
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Michael Reader-Harris
Orifice Plates and Venturi Tubes
Experimental Fluid Mechanics Series editors Wolfgang Merzkirch, Bochum, Germany Donald Rockwell, Bethlehem, USA Cameron Tropea, Darmstadt, Germany
More information about this series at http://www.springer.com/series/3837
Michael Reader-Harris
Orifice Plates and Venturi Tubes
123
Michael Reader-Harris NEL Glasgow UK
ISSN 1613-222X Experimental Fluid Mechanics ISBN 978-3-319-16879-1 DOI 10.1007/978-3-319-16880-7
ISSN 2197-9510 (electronic) ISBN 978-3-319-16880-7
(eBook)
Library of Congress Control Number: 2015934948 Springer Cham Heidelberg New York Dordrecht London © Springer International Publishing Switzerland 2015 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. Printed on acid-free paper Springer International Publishing AG Switzerland is part of Springer Science+Business Media (www.springer.com)
Preface
Differential-pressure flowmeters are low-cost and robust and can achieve high accuracy. The majority of industrial flowmeters are based on the differential-pressure principle. The increasing use of diagnostics will help ensure that the use of differential-pressure flowmeters continues to grow. For those who want to use an orifice plate or a Venturi tube, the ISO (International Organization for Standardization) standard (ISO 5167) and its associated Technical Reports give the instructions required. However, they rarely tell the users why they should follow certain instructions. The aim of this book is to help users of the ISO standards for orifice plates and Venturi tubes to understand the reasons why the standards are as they are, to apply them effectively and to understand the consequences of deviations from the standards. So this book gives the background to differential-pressure flow measurement and then in Chaps. 2–4 goes through the requirements explaining the reason for them. The money involved in differential-pressure flow measurement is enormous. In the UK, most natural gas is measured at least
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