ASME_PTC-50-2002.pdf

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.ANAMERICANNATIONALSTANDARDFUELCELLPOWERSYSTEMSPERFORMANCEPERFORMANCETESTCODESASMEPTC50-2002Copyrighted 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:November 29,2002This Standard will be revised when the Society approves the issuance of a newedition.There will be no addenda issued to this edition.ASME issues written replies to inquiries concerning interpretations of technicalaspects of this Standard.Interpretations are published on the ASME Web site underthe Committee Pages at http:/www.asme.org/codes/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 AmericanNational Standards.The Standards Committee that approved the code or standard was balanced to assurethat individuals from competent and concerned interests have had an opportunity to participate.Theproposedcodeorstandardwasmadeavailableforpublicreviewandcommentthatprovidesanopportunityfor 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 connectionwith any items mentioned in this document,and does not undertake to insure anyone utilizing a standardagainst liability for infringement of any applicable letters patent,nor assume any such liability.Users ofa code or standard are expressly advised that determination of the validity of any such patent rights,andthe 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 beinterpreted as government or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document issued in accordancewith the established ASME procedures and policies,which precludes the issuance of interpretations byindividuals.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 EngineersThree Park Avenue,New York,NY 10016-5990Copyright 2002 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted 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.CONTENTSForeword.vCommittee Roster.viiBoard Roster.viiiINTRODUCTION.11Object and Scope.21.12Object.1.22Scope.1.32Test Uncertainty.2Definitions and Description of Terms.32.13Introduction.2.23Fuel Cell Types.2.34Fuel Cell Power Systems.2.45General Fuel Cell Nomenclature.2.55General Definitions.3Guiding Principles.83.18Introduction.3.28Agreements.3.38Test Boundary.3.48Test Plan.3.510Preparation for Test.3.611Parameters to be Measured or Determined During the Test Period.3.714Operation of the Test.3.814Calculation and Reporting of Results.3.915Records.4Instruments and Methods of Measurement.164.116General Requirements.4.218Checklist of Instruments and Apparatus.4.319Determination of Outputs.4.420Determination of Fuel Input.4.522Data Collection and Handling.5Computation of Results.235.123Introduction.5.223Computation of Inputs.5.327Computation of Electric Power Output.iiiCopyrighted 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.5.427Computation of Thermal and Mechanical Outputs.5.528Computation of Average Net Power.5.628Computation of Efficiencies.5.729Correction of Test Results to Reference Conditions.6Test Report Requirements.316.131General Requirements.6.231Executive Summary.6.331Introduction.6.431Instrumentation.6.531Results.6.632Conclusions.6.732Appendices.Figures2.1 Generic Fuel Cell Power System Diagram.43.1 Generic Fuel Cell System Test Boundary.93.2 Fuel Cell System Test Boundary Illustrating Internal Subsystems.9Tables3.1 Maximum Permissible Variations in Test Operating Conditions.144.1 Potential Bias Limit for Heating Values.21Mandatory AppendixIUncertainty Analysis and Sample Calculation.33ivCopyrighted 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.FOREWORDDuring the mid 1990s