BS-EN-13771-2-2007.pdf
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1、BRITISH STANDARD BS EN 13771-2:2007 Compressors and condensing units for refrigeration Performance testing and test methods Part 2: Condensing units The European Standard EN 13771-2:2007 has the status of a British Standard ICS 23.140; 27.200 ? Licensed Copy: London South Bank University, London Sou
2、th Bank University, Fri Oct 05 02:28:14 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN 13771-2:2007 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 September 2007 BSI 2007 ISBN 978 0 580 55282 3 National foreword This British Standard is
3、 the UK implementation of EN 13771-2:2007. The UK participation in its preparation was entrusted to Technical Committee RHE/4, Testing of refrigerant compressors. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to i
4、nclude all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments Licensed Copy: London South Bank University, London South
5、Bank University, Fri Oct 05 02:28:14 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13771-2 August 2007 ICS 23.140; 27.200 English Version Compressors and condensing units for refrigeration - Performance testing and test methods - Part 2: Condensing u
6、nits Compresseurs et units de condensation pour la rfrigration - Essais de performance et mthodes dessai - Partie 2: Units de condensation Kltemittel-Verdichter und Verflssigungsstze fr die Klteanwendung - Leistungsprfung und Prfverfahren - Teil 2: Verflssigungsstze This European Standard was approv
7、ed by CEN on 13 July 2007. CEN members are bound to comply with 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 sta
8、ndards may be obtained on application to the CEN Management Centre 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
9、 to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
10、 Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2007 CENAll rights of exploi
11、tation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13771-2:2007: E Licensed Copy: London South Bank University, London South Bank University, Fri Oct 05 02:28:14 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EN 13771-2:2007 (E) 2 Contents Page Foreword4 1 Scope
12、 5 2 Normative references5 3 Terms, definitions and symbols.5 3.1 Terms and definitions .5 3.2 Symbols6 3.3 Refrigerant circuit state points.8 4 General requirements9 4.1 Test equipment 9 4.2 Calculation methods .9 4.2.1 Principle9 4.2.2 Specific enthalpy .9 4.2.3 Refrigerant mass flow .9 4.2.4 Powe
13、r absorbed.9 4.2.5 Basic equations .9 4.3 Requirements for the selection of test methods10 4.4 Test procedure.10 4.4.1 General10 4.4.2 Steady working conditions.10 4.4.3 Recording of measured data10 4.5 Pressure and temperature measuring points.11 4.6 Oil circulation.11 4.7 Refrigerant composition11
14、 4.8 Calibration and requirements regarding measurement uncertainty11 4.8.1 Calibration of calorimeters for methods A, B and C11 4.8.2 Determination of the refrigerating capacity12 4.8.3 Determination of the power absorbed by the condensing unit 12 4.8.4 Measuring instruments .12 4.9 Source of refri
15、gerant data.13 4.10 Allowable deviations from the basic test conditions.13 4.11 Additional information 14 5 Test methods14 5.1 General14 5.2 List of test methods.14 5.2.1 Calorimetric methods14 5.2.2 Flow meter methods15 5.3 Method A: secondary fluid calorimeter on the suction side.15 5.3.1 Descript
16、ion.15 5.3.2 Calibration15 5.3.3 Test procedure.16 5.3.4 Requirements.16 5.3.5 Determination of refrigerant mass flow.16 5.4 Method B: dry system refrigerant calorimeter on the suction side16 5.4.1 Description.16 5.4.2 Calibration17 5.4.3 Test procedure.17 5.4.4 Requirements.17 5.4.5 Determination o
17、f refrigerant mass flow.17 5.5 Method C: water-cooled condenser on the discharge side 18 5.5.1 Description.18 5.5.2 Calibration18 Licensed Copy: London South Bank University, London South Bank University, Fri Oct 05 02:28:14 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EN 13771-2:2007 (E) 3 5.5.3 Test
18、 procedure.18 5.5.4 Requirements.19 5.5.5 Determination of refrigerant mass flow 19 5.6 Method D: refrigerant vapour flow meter on the suction side19 5.6.1 Description.19 5.6.2 Test procedure.19 5.6.3 Requirements.19 5.6.4 Determination of refrigerant mass flow 20 5.7 Method E: refrigerant flow mete
19、r in the liquid line 20 5.7.1 Description.20 5.7.2 Test procedure.20 5.7.3 Requirements.21 5.7.4 Determination of the refrigerant mass flow21 6 Determination of the power absorbed by the condensing unit21 6.1 General .21 6.1.1 Introduction21 6.1.2 Measurement for condensing units where the motor is
20、not an integral part of the unit.21 6.1.3 Measurement for condensing units where the motor is an integral part of the condensing unit21 6.1.4 Measurement of the power absorbed by the auxiliary components22 6.2 Calculation .22 7 Test report22 7.1 General .22 7.2 General information in the test report
21、.22 7.3 Basic data.22 7.4 Test results 23 7.5 Additional information23 Bibliography25 Licensed Copy: London South Bank University, London South Bank University, Fri Oct 05 02:28:14 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EN 13771-2:2007 (E) 4 Foreword This document (EN 13771-2:2007) has been prep
22、ared by Technical Committee CEN/TC 113 “Heat pumps and air conditioning units”, the secretariat of which is held by AENOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2008 , and confl
23、icting national standards shall be withdrawn at the latest by February 2008. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According
24、 to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, L
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