C4-4_Edtn_2008.pdf

Gas Turbine Heat Recovery Steam GeneratorsAN AMERICAN NATIO NAL STANDARDASME PTC 4.4-2008Revision of ANSI/ASME PTC 4.4-1981(R2003)Performance Test CodesCopyrighted 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 2008 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cGas Turbine Heat Recovery Steam Generators Gas Turbine Heat Recovery Steam Generators A N A M E R I C A N N A T I O N A L S T A N D A R DPerformance Test Codes Performance Test Codes ASME PTC 4.4-2008ASME PTC 4.4-2008Revision of ANSI/ASME PTC 4.4-1981(R2003)Revision of ANSI/ASME PTC 4.4-1981(R2003)Copyrighted 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 2008 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cDate of Issuance:January 30,2009 This Code will be revised when the Society approves the issuance of a new edition.There will be no Addenda issued to this edition.ASME issues written replies to inquiries concerning interpretation of technical aspects of this Code.Periodically certain actions of the ASME PTC Committee may be published as Code Cases.Code Cases and interpretations are published on the ASME Web site under the Committee Pages at http:/cstools.asme.org as they are issued.ASME is the 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 interpreted as government or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document issued in accordance with established ASME procedures and policies,which preclude the issuance of interpretations by individual volunteers.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 2009 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS All rights reserved Printed in U.S.A.Copyrighted 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 2008 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.ciii CONTENTS Notice.v Foreword.vi Committee Roster.vii Correspondence With the PTC Committee.ix Section 1 Object and Scope.1 1-1 Object.1 1-2 Scope.1 1-3 Test Uncertainty.2 Section 2 Definitions of Terms,Symbols,and Conversion Factors.3 2-1 Definitions of Terms.3 2-2 Symbols.6 2-3 Conversion Factors.10 2-4 Descriptive Figures.12 Section 3 Guiding Principles.18 3-1 Introduction.18 3-2 Planning for the Test.18 3-3 Prior Agreements.20 3-4 Test Preparations.21 3-5 Conducting the Test.22 3-6 Calculation,Analysis,and Reporting of Results.25 Section 4 Instruments and Methods of Measurement.28 4-1 Introduction.28 4-2 General.28 4-3 Temperature Measurement.31 4-4 Pressure Measurement.36 4-5 Flow Measurement.38 4-6 Liquid and Gaseous Fuel Sampling.40 4-7 Power Measurement.41 4-8 Data Collection and Handling.41 Section 5 Calculations.43 5-1 Introduction.43 5-2 Intermediate Calculations.43 5-3 Gas Flow by HRSG Energy Balance.52 5-4 Gas Flow by Gas Turbine Energy Balance.56 5-5 Weighted Capacity.57 5-6 Correction of Test Conditions to Guarantee.58 Copyrighted material licensed to Stanford University b