ANSI ASME PTC 6A-2000 Appendix A To PTC 6 the Test Code for Steam Turbines.pdf
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1、 Intentionally left blank 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
2、 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
3、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 avai
4、lable 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 w
5、ith 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 stand
6、ard 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
7、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
8、 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. FOREWORD ASME
9、 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
10、, 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 usin
11、g 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-ta
12、p 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 Nat
13、ional 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-quali
14、ty codes that have typified ASME documents requires a substantial commitment by the Society. Thousands of volunteers work diligently to develop these codes, participating on their own or with a sponsors assistance to produce documents that meet the requirements of an ASME consensus standard. The cod
15、es are very valuable pieces of literature to industry and commerce, and the effort to improve these living documents and develop additional needed codes must be continued. The monies spent for research and further code development, administrative staff support, and publication are essential and cons
16、titute a substantial drain on ASME. The purchase price of these documents helps offset these costs. User reproduction under- mines this system and represents an added financial drain on ASME. When extra copies are needed, you are requested to call or write the ASME Order Department, 22 Law Drive, Bo
17、x 2300, Fairfield, New Jersey 07007-2300, and ASME will expedite delivery of such copies to you by return mail. Please instruct your people to buy required test codes rather than copy them. Your cooperation in this matter is greatly appreciated. Intentionally left blank NOTICE All Performance Test C
18、odes MUST adhere to the requirements of PTC 1, GENERAL INSTRUCTIONS. The following information is based on that document and is included here for emphasis and for the convenience of the user of this Code. It is expected that the Code user is fully cognizant of Parts I and III of PTC 1 and has read t
19、hem prior to applying this Code. ASME Performance Test Codes provide test procedures which yield results of the highest level of accuracy consistent with the best engineering knowledge and practice currently available. They were developed by balanced committees representing all concerned interests.
20、They specify procedures, instrumentation, equipment operating requirements, calculation methods, and uncertainty analysis. When tests are run in accordance with this Code, the test results themselves, without adjustment for uncertainty, yield the best available indication of the actual performance o
21、f the tested equipment. ASME Performance Test Codes do not specify means to compare those results to contractual guarantees. Therefore, it is recommended that the parties to a commercial test agree before starting the test and preferably before signing the contract on the method to be used for compa
22、ring the test results to the contractual guarantees. It is beyond the scope of any code to determine or interpret how such comparisons shall be made. Intentionally left blank PERSONNEL OF PERFORMANCE TEST CODE COMMITTEE NO. 6 ON STEAM TURBINES (The following is the roster of the Committee at the tim
23、e of approval of this Appendix.) OFFICERS Bezalel Bornstein, Chair Edwin J. Brailey, Jr., Vice Chair Jack H. Karian, Secretary COMMITTEE PERSONNEL Paul G. Albert, General Electric Co. John A. Booth, General Electric Co. (retired) Bezalel Bornstein, Consultant Edwin J. Brailey, Jr., Stowe Engineering
24、 Corp. Thomas M. Brown, Ontario Power Generation Norman R. Deming, Westinghouse Electric Corp. (retired) Arturo J. Egli, ABB Alstom Power Generation Alfonso . Fajardo, Jr., Siemens Power Group Christopher J. Haynes, New England Power Co. Dale C. Karg, Santee Cooper Jack H. Karian, American Society o
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