EN 1216-1998 en Heat exchangers Forced circulation air-cooling and air-heating coils Test procedures for establishing the performance (Incorporates Amendment A1 2002)《热交换器 强迫循环空气冷却.pdf

1、BRITISH STANDARD BS EN 1216:1999 Incorporating Amendment No. 1 Heat exchangers Forced circulation air-cooling and air-heating coils Test procedures for establishing the performance The European Standard EN 1216:1999, with the incorporation of amendment A1:2002, has the status of a British Standard I

2、CS 27.060.30 BS EN 1216:1999 This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 May 1999 BSI 28 March 2003 ISBN 0 580 30975 4 National foreword This British Stan

3、dard is the English language version of EN 1216:1999, including amendment A1:2002. It supersedes DD ENV 1216:1994 which is withdrawn. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. Tags indicating changes to CEN text carry the number of the CEN a

4、mendment. For example, text altered by CEN amendment A1 is indicated by !“. The UK participation in its preparation was entrusted by Technical Committee RHE/30, Heat exchangers, which has responsibility to: A list of organizations represented on this committee can be obtained on request to its secre

5、tary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalo

6、gue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand th

7、e 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. Summary of pages This document comprises a front cover, an in

8、side front cover, the EN title page, pages 2 to 22, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments 14280 28 March 2003 See national forewordEUROPEAN STA

9、NDARD NORME EUROPENNE EUROPISCHE NORM EN 1216 December 1998 + A1 October 2002 ICS 27.060.30 Supersedes ENV 1216:1993 Descriptors: heat exchangers, definitions, symbols, performance evaluation, calorific power, measurements, installation, tests, computation English version Heat exchangers Forced circ

10、ulation air-cooling and air-heating coils Test procedures for establishing the performance (includes amendment A1:2002) Echangeurs thermiques Batteries aillettes circulation force Procdures dessai pour la dtermination des performances (inclut lamendement A1:2002) Wrmeaustauscher Luftkhler und Lufter

11、hitzer fr erzwungene Konvektion Prfverfahren zur Leistungsfestellung (enthlt nderung A1:2002) This European Standard was approved by CEN on 28 November 1998. Amendment A1 was approved by CEN on 14 September 2002. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipula

12、te 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 exis

13、ts 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 bod

14、ies 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 Comit Europen de Normalisation Europisches Komitee fr Norm

15、ung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1216:1998 + A1:2002 EEN 1216:1998 BSI 28 March 2003 2 Foreword This European Standard has been prepared by Technical

16、Committee CEN/TC 110, Heat exchangers, the Secretariat of which is held by BSI. This European Standard replaces ENV 1216:1993. 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 June 1999, and confli

17、cting national standards shall be withdrawn at the latest by June 1999. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, German

18、y, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Foreword to amendment A1 This document EN 1216:1998/A1:2002 has been prepared by Technical Committee CEN/TC 110, Heat exchangers, the Secretariat of which is held by BSI.

19、 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 April 2003, and conflicting national standards shall be withdrawn at the latest by April 2003. According to the CEN/CENELEC Internal Regulations, t

20、he national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the Uni

21、ted Kingdom This amendment is introduced to accommodate newly available refrigerants such as R404A, R407C and R410A. Contents Page Foreword 2 0 Introduction 3 1S c o p e 3 2 Normative references 3 3 Definitions 3 4S y m b o l s 8 5 Standard capacity 9 6 Manufacturers data 10 7M e a s u r e m e n t s

22、 1 1 8 Testing methods and equipment 13 9 Test procedures 15 10 Capacity calculation 16 11 Conversion to standard conditions 18 12 Test report 18 Annex A (normative) Circuit diagrams 19 Annex B (informative) Oil content measurement procedure 22 Annex C (informative) Bibliography 22EN 1216:1998 BSI 2

23、8 March 2003 3 0 Introduction This European Standard is one of a series of European Standards dedicated to heat exchangers. 1 Scope This European Standard applies to forced circulation air-cooling or air-heating coils operating: a) with an evaporating or condensing refrigerant; b) with a cooling or

24、heating fluid; c) without fans. Operation with steam is not part of the standard. This standard specifies uniform methods of testing under non-frosting conditions conducted on test samples to test and ascertain the following: product identification; the capacity; air side pressure drop; fluid side p

25、ressure drop. at standard conditions, unless otherwise stated by the user. It is not the purpose of this standard to specify the types of test used for production or field testing. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publica

26、tions. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision.

27、 For undated references the latest edition of publication referred to applies: EN 45001, General criteria for the operation of testing laboratories. 3 Definitions For the purposes of this Standard, the following definitions apply: 3.1 forced-circulation air-cooling or air-heating coil a tubular heat

28、 exchanger, with or without extended surfaces, for use in an air flow, circulated by fans 3.1.1 forced-circulation air-cooling coil an air-cooling coil through which a cooling fluid is circulated for the purpose of the sensible cooling, or sensible cooling and dehumidification of a forced-circulatio

29、n air flow, including all components necessary for the distribution and collection of the cooling fluid 3.1.2 forced-circulation air-heating coil an air-heating coil through which a heating fluid is circulated for the purpose of the sensible heating of a forced-circulation air flow, including all co

30、mponents necessary for the distribution and collection of the heating fluid 3.1.3 cooling fluid either refrigerant or a liquid used for cooling 3.1.4 heating fluid either refrigerant or a liquid used for heatingEN 1216:1998 4 BSI 28 March 2003 3.1.5 (primary) refrigerant the working fluid, in a refr

31、igeration system, that absorbs heat by evaporation at a low temperature and rejects it by condensation at a higher temperature. In the following, the term refrigerant is used 3.1.6 liquid a working fluid circulated through a heating or cooling system which remains liquid during the absorption or rej

32、ection of heat 3.2 Coil dimensions 3.2.1 row a bank of tubes that are located in a plane at right angle to the direction of the air flow 3.2.2 coil inlet area the internal cross-sectional area of the duct containing the heat exchanger supplied by the manufacturer 3.2.3 total heat transfer surface (a

33、ir side) whole external surface of the coil which is exposed to the air flow passing through the coil 3.3 Capacity 3.3.1 Air-cooling capacity 3.3.1.1 sensible (dry) air-cooling capacity heat flow which is rejected by the air by means of temperature drop 3.3.1.2 latent air-cooling capacity latent hea

34、t flow which is rejected by the condensing water vapour of the air 3.3.1.3 total cooling capacity on air side sum of the sensible and the latent capacities measured at the same time. It is equal to the enthalpy change of the air across the air cooling coil reduced by the enthalpy flow removed by the

35、 condensed water 3.3.1.4 total cooling capacity on fluid side heat flow absorbed by the cooling fluid, expressed as the product of the mass flow of the cooling fluid and the difference between specific enthalpies at the outlet and inlet connections of the coil 3.3.1.5 enthalpy flow of condensate dif

36、ference between the total cooling capacities on air side and on fluid side which is equal to the specific enthalpy of the condensate multiplied by its flow rate 3.3.2 Air-heating capacity 3.3.2.1 heating capacity on air side heat flow absorbed by the air passing through the coil 3.3.2.2 heating capa

37、city on fluid side heat flow rejected by the heating fluid, expressed as the product of the mass flow of the heating fluid and the difference between specific enthalpies at the inlet and outlet connections of the coilEN 1216:1998 BSI 28 March 2003 5 !3.4 pressures NOTE All pressures are average valu

38、es ascertained over the test duration, and are absolute pressures. 3.4.1 condensing pressure the pressure of the refrigerant at the inlet connection of the condenser 3.4.2 evaporating pressure the pressure of the refrigerant at the outlet connection of the calorimeter (applicable only to low pressur

39、e calorimeter method) 3.5 Temperature NOTE All temperatures are average values ascertained over the measuring period. 3.5.1 Air temperature 3.5.1.1 air inlet temperature average dry bulb or wet bulb temperature of the air at the coil inlet, taking into consideration the local air velocities 3.5.1.2

40、air outlet temperature average dry bulb temperature of the air at the coil outlet, taking into consideration the local air velocities 3.5.2 Liquid temperature 3.5.2.1 liquid inlet temperature average temperature of the liquid at the inlet connection of the coil, taking into consideration the local l

41、iquid velocities 3.5.2.2 liquid outlet temperature average temperature of the liquid at the outlet connection of the coil, taking into consideration the local liquid velocities 3.5.3 Refrigerant temperature 3.5.3.1 evaporating temperature dew point temperature of the refrigerant, corresponding to th

42、e evaporating pressure 3.5.3.2 condensing temperature dew point temperature of the refrigerant corresponding to the condensing pressure 3.5.3.3 superheated vapour temperature actual temperature of the refrigerant vapour: a) at the air-cooling coil suction outlet connection; b) at the air-heating coi

43、l inlet connection 3.5.3.4 subcooled refrigerant temperature temperature of the liquid refrigerant: a) at the inlet of the expansion device (not part of the air-cooling coil); b) at the outlet connection of the air-heating coil “EN 1216:1998 6 BSI 28 March 2003 !3.5.3.5 bubble point temperature temp

44、erature corresponding to the absolute pressure of the refrigerant at the outlet connection of the condenser 3.6 Temperature difference 3.6.1 Operation with refrigerant 3.6.1.1 inlet temperature difference absolute value of the difference between the air inlet dry bulb temperature and: a) for air-coo

45、ling coils the evaporating temperature; b) for air-heating coils the condensing temperature 3.6.1.2 superheating difference between: a) for air-cooling coils the superheated vapour temperature and the evaporating temperature; b) for air-heating coils the superheated vapour temperature and the conden

46、sing temperature 3.6.1.3 subcooling difference between the bubble point temperature and the subcooled refrigerant temperature: a) in the case of an air-cooling coil at the inlet of the expansion device; b) in the case of an air-heating coil at the outlet connection of the coil 3.6.2 Operation with l

47、iquid 3.6.2.1 inlet temperature difference absolute value of the difference between air inlet temperature and liquid inlet temperature 3.6.2.2 liquid temperature difference absolute value of the difference between liquid inlet and outlet temperature 3.6.3 air temperature difference absolute value of

48、 the difference between air inlet and outlet temperature 3.7 high glide refrigerant where the difference between the condensing and bubble point temperatures at a condensing temperature of 40C is greater than 3 K 3.8 Air flow/velocity 3.8.1 air face velocity air volume flow rate through the coil div

49、ided by the coil face area 3.8.2 air mass flux air mass flow through the coil divided by the coil face area “EN 1216:1998 BSI 28 March 2003 7 !3.9 Pressure drop 3.9.1 air side pressure drop static pressure difference between the air inlet and outlet of the coil 3.9.2 fluid side pressure drop static pressure difference of the fluid between the inlet and outlet connections of coil 3.10 Specific enthalpy 3.10.1 air specific enthalpy specific enthalpy correspon