EN 304-2017 en Heating boilers - Test code for heating boilers for atomizing oil burners.pdf

1、Heating boilers Test code for heating boilers for atomizing oil burners BS EN 304:2017 BSI Standards Publication WB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 304 November 2017 ICS 91.140.10 Supersedes EN 15034:2006, EN 304:1992 English

2、 Version Heating boilers - Test code for heating boilers for atomizing oil burners Chaudires de chauffage - Rgles dessai pour les chaudires pour brleurs fioul pulvrisation Heizkessel - Prfregeln fr Heizkessel mit lzerstubungsbrennern This European Standard was approved by CEN on 2 July 2017. CEN mem

3、bers 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 standards may be obtained on applicat

4、ion 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 translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Manage

5、ment 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

6、 Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue

7、 Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 304:2017 E National foreword This British Standard is the UK implementation of EN 304:2017. It supersedes BS EN 304:1992, which is withdrawn. The UK p

8、articipation in its preparation was entrusted to Technical Committee RHE/10, Heating boilers. 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 responsi

9、ble for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017 ISBN 978 0 580 93473 5 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 Standa

10、rds Policy and Strategy Committee on 30 November 2017. Amendments/corrigenda issued since publication Date Text affected BRITISH STANDARD BS EN 304:2017 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 304 November 2017 ICS 91.140.10 Supersedes EN 15034:2006, EN 304:1992 English Version Heating

11、boilers - Test code for heating boilers for atomizing oil burners Chaudires de chauffage - Rgles dessai pour les chaudires pour brleurs fioul pulvrisation Heizkessel - Prfregeln fr Heizkessel mit lzerstubungsbrennern This European Standard was approved by CEN on 2 July 2017. CEN members are bound to

12、 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 standards may be obtained on application to the CEN-CE

13、NELEC 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 to the CEN-CENELEC Management Centre has t

14、he same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxem

15、bourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-100

16、0 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 304:2017 E BS EN 304:2017EN 304:2017 (E) 2 Contents Page European foreword . 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 5 4 General conditions for

17、testing 5 5 Measurement accuracies and uncertainties . 6 6 Measurements for the heating mode . 7 6.1 General 7 6.2 Determination of the nominal heat output 7 6.3 Determination of the boiler efficiency at nominal heat output 7 6.4 Performance of testing 8 6.4.1 General test conditions . 8 6.4.2 Draug

18、ht adjustment . 8 6.4.3 Establishment of steady-state conditions 8 6.4.4 Test period . 8 6.5 Calculation . 8 6.5.1 General 8 6.5.2 Nominal heat output 8 6.5.3 Boiler heat input 8 6.5.4 Boiler efficiency . 9 6.6 Determination of the waterside resistance . 9 6.7 Determination of the standby heat loss

19、. 10 6.7.1 General . 10 6.7.2 Standby heat loss method 1 11 6.7.3 Standby heat loss method 2 12 6.8 Efficiency at 30 % of the nominal heat output . 14 6.8.1 General . 14 6.8.2 Efficiency at 30 % - Method 1 (time dependent method) 14 6.8.3 Efficiency at 30 % - Method 2 (load dependent method) 14 6.9

20、Auxiliary electricity consumption . 15 6.10 Seasonal space heating efficiency 16 6.11 Verification of nominal condensing output 16 6.12 Formation of condensation 16 6.13 Functional test for the temperature sensing control type TR and temperature sensing control type STB on the boiler . 16 6.14 Surfa

21、ce temperature . 20 6.15 Floor temperatures . 20 6.16 Limiting temperature of the test panels 20 6.17 Emission values of NO x and CO 21 6.17.1 General . 21 6.17.2 Units 21 6.17.3 Assemblies of a boiler with various burners . 21 7 Measurement of the sanitary water production mode . 21 8 Test report a

22、nd other documents 22 BS EN 304:2017EN 304:2017 (E) 3 Annex A (normative) Calculations for the heating mode 23 A.1 Volume measurement . 23 A.2 Calculation of combustion parameters . 23 A.3 Determination of air factor ( ) and excess air (e) 27 A.4 Test rigs 28 A.5 Calculation of the nominal heat outp

23、ut P N . 29 A.6 Calculation of the heat input . 30 A.7 Calculation of efficiency . 30 A.8 Calculation of the heat losses q A, q U, q S 32 A.9 Standby heat loss (P Stby) 35 A.10 Calculation of the seasonal space heating energy efficiency 37 A.11 Fuel characteristics 38 Annex B (informative) Applicabl

24、e symbols and units 40 Annex C (informative) Criteria for the adaptation of forced draught burners using liquid fuels to heating boilers . 43 Annex D (informative) Information for setting up and evaluation of the test rig 45 Annex E (informative) Determination of the heat losses of the test rig . 46

25、 Annex ZA (informative) Relationship between this European Standard and the ecodesign requirements of Commission Regulation (EU) No 813/2013 aimed to be covered 47 Annex ZB (informative) Relationship between this European Standard and the ecodesign requirements of Commission Delegated Regulation (EU

26、) No 811/2013 aimed to be covered . 48 Bibliography . 49 BS EN 304:2017EN 304:2017 (E) 4 European foreword This document (EN 304:2017) has been prepared by Technical Committee CEN/TC 57 “Central heating boilers”, the secretariat of which is held by DIN. This European Standard shall be given the stat

27、us of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2018, and conflicting national standards shall be withdrawn at the latest by May 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of

28、patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 304:1992 and EN 15034:2006. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essent

29、ial requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are an integral part of this document. According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this E

30、uropean Standard: Austria, Belgium, 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, Serbia, Sl

31、ovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 304:2017EN 304:2017 (E) 5 1 Scope This European Standard applies to the determination of the performances of heating boilers and combi boilers fired by liquid fuels. The requirements for the heating performances are l

32、aid down in EN 303-1:2017 and EN 303-2:2017. This test code includes the requirements and recommendations for carrying out and evaluating the procedure for testing boilers and also the details of the technical conditions under which the tests will be carried out. The requirements and the performance

33、 of testing for the sanitary hot water production of combi boilers are laid down in prEN 303-6. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited app

34、lies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 267:2009+A1:2011, Automatic forced draught burners for liquid fuels EN 303-1:2017, Heating boilers - Part 1: Heating boilers with forced draught burners - Terminology, general requireme

35、nts, testing and marking EN 303-2:2017, Heating boilers - Part 2: Heating boilers with forced draught burners - Special requirements for boilers with atomizing oil burners prEN 303-6, Heating boilers - Part 6: Heating boilers with forced draught burners - Specific requirements for the domestic hot w

36、ater operation and energy performance of water heaters and combination boilers with atomizing oil burners of nominal heat input not exceeding 70 kW EN 15456, Heating boilers - Electrical power consumption for heat generators - System boundaries - Measurements EN ISO/IEC 17025, General requirements f

37、or the competence of testing and calibration laboratories (ISO/IEC 17025) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 303-1:2017 and EN 303-2:2017 and the following apply. 3.1 minimum continuous heat output P minC lowest heat output which is maint

38、ained automatically by the control device in continuous operation which is specified for each type of fuel in accordance with the requirements of this European Standard 4 General conditions for testing The performance tests of the boiler shall be carried out by a test laboratory complying with the r

39、equirements of EN ISO/IEC 17025. The test sample shall correspond to a boiler as placed on the market including all parts and accessories necessary for the operation of the boiler. Boilers to be equipped with different burners shall be tested with one specified forced draught burner. BS EN 304:2017E

40、N 304:2017 (E) 6 The boiler and the burner shall be operated in accordance with the operation manual throughout all tests. When determining the thermal outputs P N and 30 % P N of a combi boiler, no sanitary hot water shall be drawn off during the test. The thermal outputs shall be determined from t

41、he heating circuit only. Sanitary hot water tests for combination boiler shall be done according to prEN 303-6. 5 Measurement accuracies and uncertainties The accuracy of the measurement devices for the following parameters shall not exceed: a) Atmospheric pressure 50 Pa; b) Waterside pressure loss

42、2 % of measured value; c) Water flow rate 1 % of measured value; d) Air volume flow rate 2 % of measured value; e) Time 1) up to 1 h: 0,2 s; 2) beyond 1 h: 0,1 % of measured value f) Auxiliary electrical energy 2 % of measured value; g) Temperatures: 1) Ambient 2 K; 2) Water 1 K; 3) Combustion produ

43、cts 2 K; 4) Surface 2 K; h) CO, CO 2, O 2, NO x, C xH y: 1) CO 2-content: 0,1 % volume from full scale 2) O 2-content: 0,1 % volume from full scale 3) CO-content: 5 ml/m 34) NO x-content: 5 ml/m 35) C xH y-content: 5 ml/m 3i) Mass 0,05 % of the full scale; j) Pressure flue gas: 1) 60 Pa: 1Pa; 2) 60

44、Pa: 2 % of the measured value. BS EN 304:2017EN 304:2017 (E) 7 The full range of the measuring apparatus shall be chosen in such a way that it is suitable for maximum anticipated value. The measurement accuracies indicated above concern individual measurements. For measurements requiring a combinati

45、on of individual measurements, the lower accuracies associated with individual measurements may be necessary to attain the total required uncertainty. The test rig shall be set up in such a way that the efficiency can be determined within a uncertainty of 2 % points. 6 Measurements for the heating m

46、ode 6.1 General The amount of useful heat output transmitted to the heat carrier (water) is measured. It can be determined in the boiler circuit or by means of a secondary heat exchanger. The useful heat output transmitted to the water is determined either by measuring a) the mass flow of cold water

47、 entering the boiler circuit and the rise of temperature between the outlet water temperature and the inlet water temperature; or b) the mass flow of the water circulating in the boiler circuit and its temperature rise; or c) the mass flow and the temperature rise over a secondary heat exchanger cor

48、rected by the heat loss of this secondary heat exchanger. The heat produced by the boiler is transferred to the cooling water by means of a secondary heat exchanger. The heat received by the latter is calculated from the mass flow and the temperature rise of the cooling water. The heat losses from t

49、he well- insulated connections between the boiler and the secondary heat exchanger and those of the secondary heat exchanger itself, are determined either by preliminary tests or by calculation. The heat output of the boiler is the sum of the two amounts of heat. 6.2 Determination of the nominal heat output The tests for the determination of the nominal heat output shall be carried out at a firing rate such that the output is at least 100 %, but does not exceed 105 % of the nominal value, and the requirements concerning the nominal