BS EN 13203-3-2010 Solar supported gas-fired ndomestic appliances producing nhot water Appliances not nexceeding 70 kW heat input nand 500 litres water storage ncapacity nPart 3 A.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 13203-3:2010Solar supported gas-fireddomestic appliances producinghot water Appliances notexceeding 70 kW heat inputand 500 litres water storagecapacityPart 3: Assessment o

2、f energy consumptionBS EN 13203-3:2010 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 13203-3:2010.The UK participation in its preparation was entrusted to TechnicalCommittee GSE/29, Gas-fired central heating boilers (domestic andnon-domestic) and domestic gas-

3、fired water heaters.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2010ISBN 978 0 580 58088 8ICS 91.140.65Co

4、mpliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 August 2010.Amendments issued since publicationDate Text affectedBS EN 13203-3:2010EUROPEAN STANDARD NORME EUROPEN

5、NE EUROPISCHE NORM EN 13203-3 August 2010 ICS 91.140.65 English Version Solar supported gas-fired domestic appliances producing hot water - Appliances not exceeding 70 kW heat input and 500 litres water storage capacity - Part 3: Assessment of energy consumption Appareils domestiques produisant de l

6、eau chaude sanitaire utilisant les combustibles gazeux coupls un capteur solaire - Appareils de dbit calorifique infrieur ou gal 70 kW et de capacit de stockage infrieure ou gale 500 litres - Partie 3 : valuation de la consommation nergtique Solar untersttzte gasbeheizte Gerte fr die sanitre Warmwas

7、serbereitung fr den Hausgebrauch - Gerte, die eine Nennwrmebelastung von 70 kW und eine Speicherkapazitt von 500 Liter Wasser nicht berschreiten - Teil 3: Bewertung des Energieverbrauchs This European Standard was approved by CEN on 9 July 2010. CEN members are bound to comply with the CEN/CENELEC I

8、nternal 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 Management Centre or to any CEN

9、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 Management Centre has the same status as the official versions. CEN m

10、embers are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spa

11、in, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national M

12、embers. Ref. No. EN 13203-3:2010: EBS EN 13203-3:2010EN 13203-3:2010 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms and definitions .54 General test conditions .74.1 General 74.2 Reference conditions 74.3 Measurement uncertainties 74.4 Test conditions 84.4.1 General 84.4.2 In

13、stallation for test procedure 84.4.3 Test room 84.4.4 Water supply 84.4.5 Solar circuit 94.4.6 Initial adjustment of the appliance .94.4.7 Electrical supply 94.4.8 Solar thermal input 95 Determination of the energy consumption of the solar supported gas-fired appliance 95.1 General 95.2 Tapping cycl

14、es .95.3 Solar cycle . 145.3.1 General . 145.3.2 Test for determination of the daily energy consumption . 15Annex A (informative) Test rig and measurement devices 21A.1 General . 21A.2 Pressure measurement 22A.3 Temperature measurement 22Annex B (informative) Solar collector simulator . 25B.1 Genera

15、l . 25B.2 Derivation of the equation used for the calculation of TC,out26B.3 Alternative solar collector simulator 27Annex C (normative) Appliances covered by this European Standard . 30Bibliography . 32BS EN 13203-3:2010EN 13203-3:2010 (E) 3 Foreword This document (EN 13203-3:2010) has been prepare

16、d by Technical Committee CEN/TC 109 “Central heating boilers using gaseous fuels”, the secretariat of which is held by NEN. 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 2011, and confl

17、icting national standards shall be withdrawn at the latest by February 2011. 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

18、 to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,

19、Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 13203-3:2010EN 13203-3:2010 (E) 4 1 Scope This European Standard is applicable to solar supported gas-fired appliances producing domestic

20、 hot water. It applies to a system marketed as single unit or a system fully specified by a manufacturer that: has a gas heat input not exceeding 70 kW; and has a hot water storage capacity not exceeding 500 l; and is equipped with at least one solar collector; and is, with regard to the solar hydra

21、ulic circuit, considered as a forced circulation system (definition according to EN ISO 9488:1999). The appliances covered by this European Standard are described in Annex C. This European Standard does not apply to thermo-siphon or integral collector storage systems (definitions according to EN ISO

22、 9488:1999). NOTE In principle, the energy consumption of thermo-siphon solar preheat systems and integral collector storage preheat systems can also be assessed on the basis of this standard. One appropriate procedure for that purpose is to calculate the temperature level of the domestic hot water

23、withdrawn from the thermal solar system for the reference conditions defined in this standard by using the numerical system model and the thermal solar system performance parameters according to ISO 9459-5. Based on the temperature level of the hot water withdrawn from the store the energy consumpti

24、on of the gas appliance should be determined. This determination can either be done by means of calculations or by performing a test according to EN 13203-2 and using instead of the cold water inlet temperature the hot water temperature withdrawn from the store. This standard is not intended to asse

25、ss the performance: of the solar collector(s), which should comply with EN 12975-1 and EN 12975-2; and thermal solar systems and components, which should comply with EN 12976-1 and EN 12976-2. This European Standard, EN 13203-3, sets out a method for assessing the energy performance of a solar suppo

26、rted appliance. It defines a number of daily tapping cycles for each domestic hot water use, kitchen, shower, bath and a combination of these, together with corresponding test procedures including information about the available solar radiation. It enables the energy performances of different gas-fi

27、red appliances to be compared and matched to the needs of the user. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the refer

28、enced document (including any amendments) applies. EN 12975-1, Thermal solar systems and components Solar collectors Part 1: General requirements EN 12975-2, Thermal solar systems and components Solar collectors Part 2: Test methods EN 12976-1, Thermal solar systems and components Factory made syste

29、ms Part 1: General requirements EN 12976-2:2006, Thermal solar systems and components Factory made systems Part 2: Test methods BS EN 13203-3:2010EN 13203-3:2010 (E) 5 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 aperture area of solar col

30、lector maximum projected area through which solar radiation enters the collector NOTE See definition and explanation according to EN ISO 9488:1999. 3.2 controls all hydraulic, thermal and electronic components necessary for the operation of the system 3.3 control cycle time cycle for keeping compone

31、nts and/or the storage of the domestic hot water circuit at predetermined temperature level, consisting of an “ON“ duration time during which the heating of the domestic hot water (by gas energy and auxiliary energy) is operating, and an “OFF“ duration time during which no heating occurs 3.4 domesti

32、c water mean temperature average temperature of the water delivered during the time t SYMBOL TmNOTE = tTtT d1m3.5 domestic water test temperature temperature of the delivered water at which the tests are conducted 3.6 measurement period ongoing 24 h period during which the system is continuously ope

33、rated NOTE Measurement period starts at 0h00. 3.7 nominal domestic hot water heat input value of the heat input stated by the manufacturer for the production of domestic hot water1)SYMBOL QnwNOTE Qnwis expressed in kilowatts (kW). 3.8 off mode state of an appliance, selected by the user, in which ho

34、t sanitary water cannot be provided 3.9 solar collector field either one or a combination of more than one solar collectors 1) The manufacturer is the organisation or company that assumes responsibility for the product. BS EN 13203-3:2010EN 13203-3:2010 (E) 6 3.10 solar collector simulator device de

35、livering the thermal power to the system (store) instead of a real solar collector based on the solar collector efficiency parameters according to EN 12975-2 NOTE The solar collector simulator is described in Annex B. 3.11 solar collector simulator circuit circuit containing the piping, the pump, th

36、e controls, the heat-exchanger and the collector solar simulator 3.12 solar cycle day of a year representative for middle European climate conditions NOTE The total daily radiation of that day is 3,0 kWh/m and the mean value of the outdoor ambient temperature is 6,7 C. 3.13 solar supported system sy

37、stem marketed as single unit or a system fully specified by a manufacturer, and composed of solar collector, water storage tank, controls, pipework and the gas appliance 3.14 stand by mode operating state in which the appliance can provide hot sanitary water at any time NOTE In the case of an applia

38、nce with a control cycle for keeping components and/or the storage (if any) of the domestic hot water circuit at predetermined temperature level no tapping is made. 3.15 storage reservoir for domestic hot water 3.16 summer mode conditions during which the appliance supplies energy only for the produ

39、ction of domestic hot water 3.17 useful water quantity of water delivered for which the temperature increase is in accordance with the requirement fixed for each individual delivery of the tapping cycles 3.18 wasted water quantity of water delivered for which the temperature increase is not in accor

40、dance with the requirement fixed for each individual delivery of the tapping cycles 3.19 winter mode conditions during which the appliance supplies energy for the production of domestic hot water and/or space heating BS EN 13203-3:2010EN 13203-3:2010 (E) 7 4 General test conditions 4.1 General In or

41、der to apply the test procedures specified in this standard, it is required: that the collectors of the system fulfil the requirements of EN 12975-1 and are already tested according to EN 12975-2; and that factory made thermal solar systems fulfil the requirements of EN 12976-1 are tested according

42、to EN 12976-2. 4.2 Reference conditions Unless otherwise stated, the general test conditions are as follows: cold water temperature: (10 2) C; cold water pressure: (2 0,1) bar; ambient air temperature: (20 3) C; electrical supply voltage: (230 2) V. 4.3 Measurement uncertainties Except where otherwi

43、se stated in the clauses describing the tests, the uncertainties of measurements carried out shall be not greater than the maximum uncertainties indicated below. These uncertainties correspond to two standard deviations. The laboratory evaluates these standard deviations taking account of the variou

44、s sources of uncertainty: contribution from the instrument, repeatability, calibration, ambient conditions, etc. a) Water rate: 1 %; b) gas rate: 1 %; c) time: 0,2 s; d) temperatures : 1) ambient: 1 C; 2) water: 0,5 C; 3) gas: 0,5 C; e) mass: 0,5 %; f) gas pressure: 2 %; g) gas calorific value: 1 %;

45、 h) gas density: 0,5 %; BS EN 13203-3:2010EN 13203-3:2010 (E) 8 i) electrical energy: 2 %. The stated measurement uncertainties relate to individual measurements. For measurements that combine a number of individual measurements, smaller uncertainties on the individual measurements may be necessary

46、to ensure a total uncertainty within 2 %. 4.4 Test conditions 4.4.1 General Except where otherwise stated, the appliance is tested under the following conditions. For combination gas appliances, the tests are carried out only in summer mode as defined in 3.16, and the appliance is set in summer mode

47、. 4.4.2 Installation for test procedure The installation for testing, including thermal insulation of the components, shall be in accordance with the manufacturer specifications. The maximum length of the piping between the gas appliance and the storage tank(s) shall not exceed 3 m in total (inlet p

48、lus outlet). The minimum length of the piping between the solar collector simulator and the storage tank(s) shall be 6 m in total (inlet plus outlet) and shall not exceed 10 m. If not specified by the manufacturer of the appliance, the piping shall be in accordance with EN 12976-2:2006, Annex B and

49、Table B.2 (pipe diameter and insulation thickness). For drain back solar thermal systems only the mass flow rate according to the collector circuit specifications (m the inlet and outlet temperatures of the domestic water are measured in the centre of the flow and as close as possible to the system. The inlet temperatures are measured immediatel