EN 14037-4-2016 en Free hanging heating and cooling surfaces for water with a temperature below 120 - Part 4 Pre-fabricated ceiling mounted radiant panels - Test method for cooling.pdf

1、BS EN 14037-4:2016Free hanging heating andcooling surfaces for water witha temperature below 120CPart 4: Pre-fabricated ceiling mountedradiant panels Test method for coolingcapacityBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN 14037-4:2016 BRITISH STANDARDNat

2、ional forewordThis British Standard is the UK implementation of EN 14037-4:2016. The UK participation in its preparation was entrusted to TechnicalCommittee RHE/6, Air or space heaters or coolers without combustion.A list of organizations represented on this committee can be obtained on request to i

3、ts secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 90460 8 ICS 91.140.10; 91.140.30 Compliance with a Bri

4、tish Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 14037-4:2016EUROPEAN STANDARD NORME

5、EUROPENNE EUROPISCHE NORM EN 14037-4 September 2016 ICS 91.140.10; 91.140.30 English Version Free hanging heating and cooling surfaces for water with a temperature below 120C - Part 4: Pre-fabricated ceiling mounted radiant panels - Test method for cooling capacityPanneaux rayonnants de chauffage et

6、 de rafrachissement aliments avec une eau une temprature infrieure 120 C - Partie 4: Mthode dessai pour la dtermination de la puissance de rafrachissement des panneaux rayonnants prfabriqus An der Decke frei abgehngte Heiz- und Khlflchen fr Wasser mit einer Temperatur unter 120 C - Teil 4: Vorgefert

7、igte Deckenstrahlplatten zur Raumheizung - Prfverfahren fr die Khlleistung This European Standard was approved by CEN on 18 March 2016. 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

8、standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version

9、in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech

10、 Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUR

11、OPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14037-4:2016 EB

12、S EN 14037-4:2016EN 14037-4:2016 (E) 2 Contents Page European foreword 3 Introduction . 4 1 Scope . 5 2 Normative references . 5 3 Terms and definitions 5 4 Symbols and units 6 5 Testing of cooling capacity 7 5.1 Short description 7 5.2 Test booth . 7 5.3 Test methods . 9 6 Carrying out the measurem

13、ent 10 6.1 General 10 6.2 Dimension and construction of the test samples. 10 6.3 Selection of the models to be tested for determining the cooling capacity of a type . 10 6.4 Manufacturer documents for the test samples. 10 6.5 Arrangement of the sample in the test booth . 10 6.6 Upper insulation of t

14、he test sample 10 6.7 Connection of the test sample to the measuring circuit 10 6.8 Tests . 10 6.9 Mass flow 10 6.10 Test temperature 11 6.11 Steady-state conditions . 11 6.12 Correction due to the air pressure 11 6.13 Result of measurement characteristic equation 11 6.14 Nominal cooling capacity .

15、12 7 Test report . 12 7.1 General 12 7.2 Data 12 Annex A (informative) Specimen of the test report for cooling capacity . 13 Bibliography 16 BS EN 14037-4:2016EN 14037-4:2016 (E) 3 European foreword This document (EN 14037-4:2016) has been prepared by Technical Committee CEN/TC 130 “Space heating ap

16、pliances without integral heat sources”, the secretariat of which is held by UNI. 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 March 2017, and conflicting national standards shall be withdrawn

17、at the latest by March 2017. The European Standard EN 14037, Free hanging heating and cooling surfaces for water with a temperature below 120C, consists of the following parts: Part 1: Prefabricated ceiling mounted radiant panels for space heating - Technical specifications and re-quirements; Part 2

18、: Prefabricated ceiling mounted radiant panels for space heating - Test method for thermal output; Part 3: Prefabricated ceiling mounted radiant panels for space heating - Rating method and evaluation of radiant thermal output; Part 4: Prefabricated ceiling mounted radiant panels for space heating -

19、 Test method for cooling capacity; Part 5: Open or closed heated ceiling surfaces - Test method for thermal output. 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 a

20、ny or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Repu

21、blic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portu-gal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 14037-4:2016EN 14037-4:2016 (E) 4 Introduction Thi

22、s European Standard results from the recognition, that heated and chilled ceiling radiant panels falling into the field of application hereinafter stated are traded on the basis of their thermal output. For evaluating and comparing different heated and chilled ceiling surfaces it is therefore necess

23、ary to refer to a heating stipulated value. As installations with ceiling mounted radiant panels can also be used in practice for space cooling, it is nec-essary to have a test method for evaluating the cooling capacity. Installations with different free hanging heating and cooling surfaces need, fo

24、r the use of space heating a test method for evaluating the heating out-put. The test method differs from the method for ceiling mounted radiant panels. BS EN 14037-4:2016EN 14037-4:2016 (E) 5 1 Scope This European Standard defines the technical specifications and requirements for the definition of

25、the cool-ing capacity of pre-fabricated ceiling mounted radiant panels according to the specifications of EN 14037-1:2016, 3.3.1. The test according to this standard requires the measurement of the thermal output according to EN 14037-2:2016 of the model. 2 Normative references The following documen

26、ts, in whole or in part, are normatively referenced in this document and are indis-pensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 14037-1:2016, Pre-fabric

27、ated ceiling mounted radiant panels for space heating - Technical specifications and requirements EN 14037-2:2016, Pre-fabricated ceiling mounted radiant panels for space heating - Test method for thermal output EN ISO/IEC 17025:2005, General requirements for the competence of testing and calibratio

28、n laboratories (ISO/IEC 17025:2005) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 14037-1:2016 and the following apply. 3.1 water temperature rise temperature difference between the outlet and inlet water temperature of the cooling appliance 3.2 sta

29、ndard temperature difference for the cooling capacity of ceiling mounted radiant panels reference room temperature 32C and mean water temperature 17 C, determined temperature difference 15 K 3.3 nominal temperature difference determined temperature difference 8 K between room temperature and mean wa

30、ter temperature 3.4 indirect cooling surface (dry surface) portion of the cooling surface of the panel which is in contact with air only (e.g. radiant sheet between the tubes) 3.5 direct cooling surface (wet surface) portion of the cooling surface of the panel which is in contact with the water 3.6

31、standard cooling capacity cooling capacity at standard temperature difference and standard air pressure BS EN 14037-4:2016EN 14037-4:2016 (E) 6 3.7 nominal cooling capacity cooling capacity at nominal temperature difference 8 K 3.8 characteristic equation equation that gives the thermal cooling capa

32、city as a function of the temperature difference at constant wa-ter flow rate 3.9 modular cooling capacity cooling capacity of one module calculated from the cooling capacity of the active length of a ceiling mounted radi ant panel 3.10 standard modular cooling capacity cooling capacity of one modul

33、e at standard conditions 3.11 nominal modular cooling capacity cooling capacity of one module at nominal temperature difference 4 Symbols and units For the purposes of this document, the symbols and units given in EN 14037-1:2016 and the following apply. Table 1 Symbols and units No. Quantity Symbol

34、 Unit 1 Constant of the characteristic equation of the active length KCactW/ K nact- 2 Exponent of the characteristic equation of the active surface nCact- 3 Heat transfer coefficient (airinsulationwall) u W/(m2K) 4 Total heat flow in all enclosure walls BW 5 Standard modular cooling capacity CLsW/m

35、 6 Nominal modular cooling capacity CLN W/m 7 Measured cooling capacity of a ceiling mounted radiant panel CmeW 8 Nominal cooling capacity of a ceiling mounted radiant panel CNW 9 Standard cooling capacity of a ceiling mounted radiant panel CSW 10 Total thermal output of simulators SW 11 Nominal tem

36、perature difference (8 K) of a ceiling mounted radiant panel when cooling TcnK 12 Standard temperature difference (15 K) of a ceiling mounted radiant panel when cooling TcsK BS EN 14037-4:2016EN 14037-4:2016 (E) 7 5 Testing of cooling capacity 5.1 Short description The cooling capacity of the test s

37、ample shall be determined in its steady condition with measurements of the water flow and the temperature increase in the water. The cooling capacity shall be quoted as function of the temperature difference between the reference temperature and the average water temperature. The test is carried out

38、 in a testing system according to EN 14037-2:2016 which consists of a closed booth with controlled temperatures of the inside surfaces plus master panel 1 (according to EN 14037-2:2016, Clause 6). All laboratories performing tests according to this standard shall participate in inter-laboratory comp

39、arison exercises (according to EN 14037-2:2016, Clause 6). For covering the cooling capacity, the test booth will be heated with a number of electrical heated cooling load simulators which are positioned on the floor of the test booth. To get reproducible results, the simula-tors have to be arranged

40、 according to 5.2. 5.2 Test booth The test is carried out in a test booth according to EN 14037-2:2016, Clause 5. Differing from these definitions the surfaces, floor and ceiling of the test booth shall be insulated in the way that the average heat flow in those surfaces is lower than 0,40 W/m2durin

41、g the test. This heat flow shall be determined by preliminary calibration tests of the booth or by calculations. Differing from EN 14037-2:2016, 5.5, the reference temperature during the measurement shall be 32 C 0,5K in steady condition for minimum 30 min. The temperature(s) of inner surfaces of wa

42、lls, floor and ceiling of the test booth (under the insulation) shall be controlled and be kept on a value, which is necessary to guarantee a max. temperature difference be-tween these surfaces and the reference temperature of less than 1,0 K. The radiant emissivity of the surface of the insulation

43、has to be at least 0,9. The test booth will be heated with 6 electrical heated cooling load simulators (see Figures 1 and 2), which are positioned on the floor of the test booth. The output of each simulator shall not exceed 180 W and shall be continuously adjustable, e.g. with an ad-justable transf

44、ormer or a thyristor. Each simulator shall have an identical heat output and the same number of heaters. The housing of the simulators consists of painted steel sheet. The emissivity of the inside and outside surface shall be at least 0,9. The active power of the simulators shall be measured with a

45、measuring instrument of the accuracy class 1,0 % or better. BS EN 14037-4:2016EN 14037-4:2016 (E) 8 Dimensions in meters Key 1 test booth 2 insulation 3 cooling load simulator 4 measuring point of air temperature 5 measuring point of globe temperature 6 measuring point of temperature under insulatio

46、n Figure 1 Test booth with an installed radiant ceiling panel, the cooling load simulators and the measuring points for the temperatures BS EN 14037-4:2016EN 14037-4:2016 (E) 9 Dimensions in meters Key 1 cover 2 4 holes, evenly distributed during the scale 3 electric heater with 60 W performance 4 n

47、o bottom 5 bottom 6 bases, distributed during the scale Figure 2 Cooling load simulators (dummy) 5.3 Test methods The test method shall be carried out according to EN 14037-2:2016, Clause 7. Instead of a heating unit a cooling unit will be installed in the measuring circuit. The aim of the test is t

48、o establish the standard cooling capacity of a ceiling mounted radiant panel by deter-mining the related values of cooling capacity and temperature difference. Neither of these quantities can be measured directly, but shall be calculated using the values of other measureable quantities, either direc

49、tly or with additional information (calibration test, material properties table), by using mathematical relation-ships. BS EN 14037-4:2016EN 14037-4:2016 (E) 10 The maximum uncertainty in measuring the cooling capacity shall not exceed 25 W. 6 Carrying out the measurement 6.1 General The natural convection inside the test booth shall not be affected by additional means. 6.2 Dimension and construction of the test samples Dimension, construction and hydraulic of the test samples relate to the data in EN 14037-2:2016, 8.