_PTC_6A_Edtn_2000.pdf

Copyright 2001 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.Copyright 2001 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.Date of Issuance:July 2,2001 This document will be revised when the Society approves the issuance of the next edition.There will be no Addenda issued to ASME PTC 6A-2000.Please note:ASME issues written replies to inquiries concerning interpretation of technical aspects of this document.PTC 6A-2000 is being issued with an automatic subscription service to the interpretations that will be issued to it up to the publication of the 2005 edition.ASME is a registered trademark of The American Society of Mechanical Engineers.This code or standard was developed under procedures accredited as meeting the criteria for American National Standards.The Standards Committee that approved the code or standard was balanced to assure that individuals from competent and concerned interests have had an opportunity to participate.The proposed code or standard was made available for public review and comment that provides an opportunity for additional public input from industry,academia,regulatory agencies,and the public-at-large.ASME does not approve,rate,or endorse any item,construction,proprietary device,or activity.ASME does not take any position with respect to the validity of any patent rights asserted in connection with any items mentioned in this document,and does not undertake to insure anyone utilizing a standard against liability for infringement of any applicable letters patent,nor assume any such liability.Users of a code or standard are expressly advised that determination of the validity of any such patent rights,and the risk of infringement of such rights,is entirely their own responsibility.Participation by federal agency representative(s)or person(s)affiliated with industry is not to be interpre-ted as government or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations issued in accordance with governing ASME procedures and policies,which precludes the issuance of interpretations by individuals.No part of this document may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of the publisher.The American Society of Mechanical Engineers Three Park Avenue,New York,NY 10016-5990 Copyright 2001 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS All Rights Reserved Printed in U.S.A.Copyright 2001 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.FOREWORD ASME Performance Test Code 6 on Steam Turbines(PTC 6-1996)states that numerical examples of corrections to test performance for the effect of deviations of operating condi-tions from those specified are given in a separate publication of the PTC 6 Committee.This Appendix,PTC 6A,Sample Calculations,fulfills the Committees obligation as stated in the Code.The 1996 version of the Steam Turbines(PTC 6)incorporates the Interim Test Code for an Alternative Procedure for Testing Steam Turbines(PTC 6.1-1984)with the 1976 version of the Test Code.This Appendix provides sample calculations using both methods for a reheat regenerative cycle turbine.In addition,sample calculations have been added for a non-reheat regenerative cycle turbine,an automatic extraction condensing cycle turbine,a refurbished low pressure turbine,and determination of the coefficient of discharge of a throat-tap nozzle.Instrumentation listed has been updated to reflect those currently used.This newly revised Appendix to the Test Code,now named Appendix A to Test Code for Steam Turbines,PTC 6A-2000,was approved by the Board on Performance Test Codes on July 14,2000.It was approved as an American National Standard by the Board of Standards Review on November 17,2000.All ASME codes are copyrighted,with all rights reserved to the Society.Reproduction of this or any other ASME code is a violation of Federal Law.Legalities aside,the user should appreciate that the publishing of the high-quality codes that have typified ASME documents requires a substantial commitment by the Society.Thousands of volunteers work diligently to develop these