1、BSI Standards PublicationBS EN 16430-3:2014Fan assisted radiators,convectors and trenchconvectorsPart 3: Test method and rating for coolingcapacityBS EN 16430-3:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 16430-3:2014. The UK participation in its prepar
2、ation 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 its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are res
3、ponsible for its correct application. The British Standards Institution 2014.Published by BSI Standards Limited 2014ISBN 978 0 580 77215 3 ICS 91.140.10 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Sta
4、ndards Policy and Strategy Committee on 31 December 2014.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16430-3 December 2014 ICS 91.140.10 English Version Fan assisted radiators, convectors and trench convectors - Part
5、3: Test method and rating for cooling capacity Radiateurs assists par ventilateur, convecteurs et convecteurs de caniveaux - Partie 3: Mthode dessais et dvaluation de la puissance thermique en mode rafrachissement Geblseuntersttzte Radiatoren, Konvektoren und Unterflurkonvektoren - Teil 3: Prfverfah
6、ren und Bewertung der Khlleistung This European Standard was approved by CEN on 9 November 2014. 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-
7、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 in any other language made by translati
8、on 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 Republic, Denmark, Estonia, Finland, F
9、ormer 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. EUROPEAN COMMITTEE FOR STANDARDIZATION COM
10、IT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16430-3:2014 EBS EN 16430-3:2014EN 16430-3:2014 (E) 2
11、Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Testing of dry cooling capacity 5 4.1 Short description .5 4.2 Test booth .5 4.3 Test methods 7 4.3.1 General 7 4.3.2 Fan assisted radiators / convectors 8 4.4 Master radiator for dry cooling capacity 12 5 Carry
12、ing out the measurements 13 5.1 Dimension and construction of the test samples . 13 5.2 Selection of the models to be tested for determining the dry cooling capacity of a type 13 5.3 Installation of the sample in the test booth . 13 5.3.1 General . 13 5.3.2 Radiators and wall-mounted convectors . 14
13、 5.3.3 Trench convectors 14 5.4 Connection of the test sample to the measuring circuit 14 5.5 Minimum dry cooling performance . 14 5.6 Mass flow rate . 14 5.7 Reference air temperature . 14 5.8 Steady state conditions . 14 5.9 Correction due to air pressure 15 5.10 Results of measurements characteri
14、stic equation 15 6 Test Report 15 6.1 General . 15 6.2 Data 15 BS EN 16430-3:2014EN 16430-3:2014 (E) 3 Foreword This document (EN 16430-3:2014) has been prepared by Technical Committee CEN/TC 130 “Space heating appliances without integral heat sources”, the secretariat of which is held by UNI. This
15、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 2015 and conflicting national standards shall be withdrawn at the latest by June 2015. Attention is drawn to the possibility that some of the elemen
16、ts 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. The European Standard “Fan assisted radiators, convectors and trench convectors“ consists of the following parts: - Part 1: Technical specification
17、s and requirements - Part 2: Test method and rating for thermal output - Part 3: Test method and rating for cooling capacity According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belg
18、ium, Bulgaria, Croatia, Cyprus, Czech 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, Switze
19、rland, Turkey and the United Kingdom. BS EN 16430-3:2014EN 16430-3:2014 (E) 4 1 Scope This European Standard applies to the testing of the dry cooling capacity with no condensation of fan assisted radiators, convectors and trench convectors which are factory assembled or kits, i.e. fan assisted radi
20、ators and convectors, provided the cooler has a dedicated fan or fans; radiators and convectors without dedicated fan(s); trench convectors with and without fan(s), provided the cooler and the fan(s) are dedicated. 2 Normative references The following documents, in whole or in part, are normatively
21、referenced in this document and are indispensable 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 442-2, Radiators and convectors - Part 2: Test methods and rating
22、EN 16430-2, Fan assisted radiators, convectors and trench convectors Part 2: Test method and rating for thermal output EN ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories (ISO/IEC 17025) 3 Terms and definitions For the purposes of this document, the term
23、s and definitions given in EN 442-2 and the following apply. 3.1 trench convectors convectors installed in a trench (in the floor) mostly in front of glass facades, including the covering of the trench 3.2 fan assisted radiators and convectors radiators and convectors according to EN 442-2 and trenc
24、h convectors according to 3.1 equipped with fans to increase the convective thermal output/ dry cooling capacity of the radiator, convector or trench convector 3.3 basic units regularly repeated sections of the radiator/convector equipped with fans 3.4 extension units parts of the fan assisted radia
25、tor/convector in addition to the basic units which are not equipped with a fan 3.5 dry cooling capacity thermal performance of the appliance in dry cooling operation. 3.6 standard dry cooling capacity dry cooling capacity defined at an under temperature of 10 K BS EN 16430-3:2014EN 16430-3:2014 (E)
26、5 3.7 under temperature difference between the reference air temperature and the mean water temperature 4 Testing of dry cooling capacity 4.1 Short description The dry cooling capacity of the test sample has to be determined in its steady state with measurements of the cooling water flow and the tem
27、perature difference in the cooling water. The dry cooling capacity shall be quoted as a function of the temperature difference between the reference temperature and the average cooling water temperature. The test is carried out in a testing system according to EN 442-2, which consists of a closed bo
28、oth with controlled temperatures of the inside surfaces and a secondary master radiator for dry cooling capacity (see 4.4). All laboratories performing tests according to this standard shall participate in inter-laboratory comparison exercises (according to EN 442-2). To balance the dry cooling capa
29、city, the test booth will be heated with a number of electrically heated dry cooling load simulators which are positioned on the floor of the test booth. To obtain reproducible results, the simulators shall be arranged according to 4.2. 4.2 Test booth The test is carried out in a test booth accordin
30、g to EN 442-2. In deviation from these definitions the surfaces, floor and ceiling of the test booth shall be insulated in such a way as that the average heat flow in those surfaces is lower than 0,40 W/m during the test. This heat flow shall be determined by preliminary calibration tests of the boo
31、th or by calculations. In deviation from EN 442-2, the reference air temperature shall be 28 C 0,5 K during the measurement. The temperature of the metal surfaces under the insulation of the walls, floor and ceiling of the test booth shall be regulated and be maintained at a value, which is necessar
32、y to guarantee a max. temperature difference between these surfaces and the reference air temperature of less than 1,0 K. The radiant emissivity of the surface of the insulation shall be at least 0,9. The test booth will be heated with 10 electrically heated dry cooling load simulators (see Figure 1
33、), which are positioned on the floor of the test booth. The dimension of “a“ in Figure 1 depends on the thickness of the inner wall insulation. The output of each simulator shall not exceed 180 W and shall be continually variable. The housing of the simulators consists of painted sheet steel. The em
34、issivity of the inside and outside surfaces shall be at least 0,9. The active power of the simulators shall be measured using an instrument with an accuracy class of 1,0 or better. BS EN 16430-3:2014EN 16430-3:2014 (E) 6 Dimensions in metres Key 1 water cooled metal panels 5 dry cooling load simulat
35、or 2 insulation 6 measuring point of air temperature 3 test panel or convector 7 measuring point of reference air temperature 4 measuring point of air temperature 8 measuring point of temperature under insulation (position according to EN 442-2) Figure 1 Test booth with an installed dry cooling conv
36、ector or radiator, dry cooling load simulators and the measuring points for the temperatures BS EN 16430-3:2014EN 16430-3:2014 (E) 7 Key 1 cover 2 4 holes, evenly distributed 3 60 W heat source 4 open 5 bottom plate 6 support Figure 2 Dry cooling load simulator (dummy) 4.3 Test methods 4.3.1 General
37、 The test method shall be carried out according to EN 442-2. Analogue to the excess temperatures given, the under temperatures shall be: T = (8 K 0,5) K T = (10 K 0,5) K T = (12 K 0,5) K BS EN 16430-3:2014EN 16430-3:2014 (E) 8 The under temperature is the difference between the reference room temper
38、ature and the mean water temperature: 2)(21tttTr+= (1) Where: tr is the reference air temperature, t1 is the outlet water temperature, t2 is the inlet water temperature. The aim of the test is to establish the standard dry cooling capacity of a radiator etc. by determining the related values of dry
39、cooling capacity and under temperature. Neither of these quantities can be measured directly, but shall be calculated using the values of other measureable quantities, either directly or with additional information (calibration test, material properties table), by using mathematical relationships. T
40、he uncertainty in measuring the dry cooling capacity shall not exceed 25 W. 4.3.2 Fan assisted radiators / convectors If the fans do not cover the entire radiator / convector, the performance of the radiator / convector is the sum of the performance of base units plus those of any resulting residual
41、 length. The basic unit is considered to be the smallest combination of a regularly repeating radiator / convector section with fan(s). This basic unit shall be indicated by the manufacturer. A combination of basic units of a length of at least 1 m is examined. The performance of the basic unit is d
42、etermined from this by calculation. The length of the sample under test shall be adapted if the requirements for the minimum dry cooling capacity according to 5.5 are not fulfilled. If the total length of all basic units is less than the total length of the radiator / convector the standard dry cool
43、ing capacity of the remaining length (difference) shall be determined with a fan speed of 0, see Figure 6 and Figure 7. If a fan acts on different lengths of a radiator / convector (e. g, a fan at the end of the radiator / convector), at least 3 lengths (shortest, medium, longest) shall be measured.
44、 Hence a linear characteristic is determined (see Figure 8). See the following examples (Figure 3 to Figure 9): Key 1 trench convector - trench 2 convector / radiator 3 basic unit 4 fan Figure 3 Example for two basic units, symmetrical fan positioning BS EN 16430-3:2014EN 16430-3:2014 (E) 9 Key 1 tr
45、ench convector - trench 2 convector / radiator 3 basic unit 4 fan Figure 4 Example for two basic units, asymmetrical fan positioning Figure 5 Example for two basic units with two fans each, symmetrical fan positioning BS EN 16430-3:2014EN 16430-3:2014 (E) 10 Key 1 trench convector - trench 2 convect
46、or / radiator 3 basic unit 4 fan 5 extension unit Figure 6 Example for two basic units, one extension unit Key 1 trench convector - trench 2 convector / radiator 3 basic unit 4 fan 5 extension unit Figure 7 Example for two basic units, three extension units Key 1 trench convector - trench 2 convecto
47、r / radiator 4 fan Figure 8 Example for radial fan at one end of the convector BS EN 16430-3:2014EN 16430-3:2014 (E) 11 Key 1 trench convector - trench 2 convector / radiator 3 basic unit 4 fan Figure 9 Example for three basic units, symmetrical fan positioning In case of fan assisted systems two po
48、ssible cases shall be considered: Case 1: The fan speed is not variable: A full characteristic curve shall be determined based on the above mentioned three measuring points. The fan rotation speed and the corresponding electrical power shall be measured and documented in the test report. Case 2: The
49、 fan speed is variable (continuous or multi stage): A full characteristic curve shall be determined based on the above mentioned three measuring points at a mean fan speed of the fan(s). For the lowest and the highest fan speed it is sufficient to determine the dry cooling capacity at T = (10 0,5) K only. For the characteristic curves at the lowest and highest fan speed it is assumed, that the exponent n is the same as determined for the mean fan speed. The electrical power of the fan(s) shall be measured for each fan speed u
