BS EN 328-1999 heat exchangers. test procedures for establishing the performance of forced convection unit air coolers for refrigeration this european
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F90BD1D5D8844940B5968EDB0C6ED23B |
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文件大小(MB)： |
1.53 |
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页数： |
40 |
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日期： |
2024-6-23 |
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BRITISH STANDARD,Heat exchangers -Test,procedures for,establishing the,performance of forced,convection unit air,coolers for refrigeration,The European Standard EN 328:1999 has the status of a,British Standard,ICS 23.120; 27.060.30,NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW,BS EN,328:1999,丒ピアー丒暇ザ”…野.,■LMF llllllllllliH 二,曳口『震飞”宀2承ピピjy,BS EN 328:1999,National foreword,This British Standard is the English language version of EN 328:1999. It supersedes,DD ENV 328:1993 which is withdrawn.,The UK participation in its preparation was entrusted to Technical Committee,RHE/30, Heat exchangers, which has the responsibility to:,- aid enquirers to understand the text;,- present to the responsible European committee any enquiries on the,interpretation, or proposals for change, and keep the UK interests informed;,- monitor related international and European developments and promulgate,them in the UK.,A list of organizations represented on this committee can be obtained on request to,its secretary,Cross-references,The British Standards which implement international or European publications,referred to in this document may be found in the BSI Standards Catalogue under the,section entitled “International Standards Correspondence Index"，or by using the,“Find” facility of the BSI Standards Electronic Catalogue.,A British Standard does not purport to include all the necessary provisions of a,contract Users of British Standards are responsible for their correct 冲plication.,Compliance with a British Standard does not of itself confer immunity,from legal obligations.,Summary of pages,This document comprises a front cover, an inside front cover, the EN title page,pages 2 to 37, and a back cover.,The BSI copyright notice displayed in this document indicates when the document,was last issued.,This British Standard, having Amendments issued since publication,hppn nrpnnrprl nnrk*r __________________________________________________________________________________________________________________,direction of the Engineering Amd. No.,Sector Committee, was published,under the authority oJT .…「,二,；____ _______,Date Comments,Standards Committee and comes,into effect on 15 October 1999,. BSI 10-1999,ISBN 0 580 32410 9 ---------------------,EUROPEAN STANDARD EN 328,NORME EUROPEENNE,EUROPAISCHE NORM April 1999,ICS 23.120.00; 27.06030 Supersedes ENV 328:1992,English version,Heat exchangers—Test procedures for establishing the performance of forced,convection unit air coolers for refrigeration,Echangeurs thenniques — Procedures d'essai pour la Wanneaustauscher-Prufverfehren zur,determination de la performance des aerofrigoriferes Bestimmung der Leistungskriterien von,a convection forcee Ventilatorluftkuhlem,This European Standard was approved by CEN on 10 March 1999.,CEN members are bound to comply witb the CEN/CENELEC Internal Regulations which stipulate the,conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date,lists and bibliographical references concerning such national standards may be obtained on application to the,Central Secretariat or to any CEN member.,This European Standard exists in three official versions (English, French, German). A version in any other,language made by translation under the responsibility of a CEN member into its own language and notified to the,Central Secretariat has the same status as the official versions.,CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden,Switzerland and United Kingdom.,CEN,European Committee for Standardization,Comite Europeen de Normalisation,Europaisches Komitee fur Nonnung,Central Secretariat: rue de Stassart, 36 B-1050 Brussels,. 1999 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national,Members. Re￡ No, EN 328:1999 E,Page 2,EN 328:1999,Contents,Page,Foreword 3,Introduction 4,1 Scope 4,2 Normative references 4,3 Definitions 4,4 Symbols 9,5 Standard capacity 10,6 Manufecturefs data 12,7 Measurements 13,8 Testing methods and equipment 16,9 Test procedures 19,10 Calculating the cooling capacity 22,11 Conversion to standard conditions 24,12 Test report 27,Annex A (normative) Test installation for direct expansion operation 28,Annex B (normative) Test installation for liquids 29,Annex C (informative) Superheating and capacity 30,Annex D (normative) Test arrangement 31,Annex E (normative) Operation with liquid overfeed by pump circulation 32,Annex F (informative) Procedure to meas……
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