ISO INTERNATIONAL STANDARD 5389 Second edition 2005-12-15 Turbocompressors Performance test code Turbocompresseurs - Code d'essais des performances Reference number ISO 5389:2005(E) X @ ISO 2005 ISO 5389:2005(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In ?ISO2005 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either isO at the address below or IsO's member body in the country of the requester. ISO copyright office Case postale 56. CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2005-All rights reserved ISO 5389:2005(E) Contents Page Foreword. 1 Scope 2 Normative references 3 Symbols and definitions .... 3.1 Symbols and units . 3.2 Definitions. 4 Guarantees 4.1 Genera.... .6 4.2 Preconditions for the guarantee 4.3 Object of the guarantee.. 4.4 Supplementary guarantees. 4.5 Guarantee comparison... 4.6 Guarantees for series production. 5 Measuring methods and measuring equipment.. 5.1 General. 5.2 Pressures.... .9 5.3 Temperatures 10 5.4 Gasdensity 5.5 Gas composition, 10 5.6 Gas velocity..... 5.7 Volume flow and mass flow... 5.8 Speed of rotation . 5.9 12 6 Performance test.. 13 6.1 Preparation for the test 13 6.2 Execution of the test 13 6.3 Evaluation of test results 14 6.4 Measuring uncertainty of test results. 15 7 Conversion of test results to guarantee conditions 24 7.1 General. 24 7.2 Conversion 24 Guarantee comparison... .36 8.1 Object. ..36 8.2 Execution.... 8.3 Specialnotes ...45 9 Test report... .46 Annex A (normative) Flow diagram and figures for volume flow ratio... .47 Annex B (normative) Tests for volume flow ratio beyond flow similarity. ...50 Annex C (normative)Correction method forthe influence ofReynolds Numberon the performance of centrifugal compressors .... ..55 Annex D (informative) Derivation of equations for calculating the uncertainty of measuring results....61 Annex E (informative) Special terms for compressors 63 Annex F (informative) Examples of acceptance test reports... .96 Bibliography ... .142 @ ISO 2005 - All rights reserved ii ISO5389:2005(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies technicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeen International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adoptedbythetechnicalcommitteesarecirculatedtothememberbodiesforvoting.Publicationasan International Standard requires approval by at least 75 % of the member bodies casting a vote Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 5389 was prepared by Technical Committee ISO/TC 118, Compressors and pneumatic tools, machines and equipment, Subcommittee Sc 1, Process compressors. This second edition cancels and replaces the first edition (isO 5389:1992), which has been technically revised In particular, an improved flow Sheet for determination of setting conditions using s