BS EN 13410-2001 Gas-fired overhead radiant heaters Ventilation requirements for non-domestic premises《顶置燃气辐射加热器 非家用通风要求》.pdf

1、BRITISH STANDARD BS EN 13410:2001 Incorporating Corrigendum No. 1 Gas-fired overhead radiant heaters Ventilation requirements for non-domestic premises The European Standard EN 13410:2001 has the status of a British Standard ICS 97.100.20 BS EN 13410:2001 This British Standard, having been prepared

2、under the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 4 September 2001 BSI 23 January 2003 ISBN 0 580 37392 4 National foreword This British Standard is the official English language version of EN 13410:2001, i

3、ncluding corrigendum July 2002. This British Standard partially supersedes BS 6896:1991. The ventilation requirements for gas-fired overhead radiant heaters in non-domestic premises are given in BS EN 13410. The UK participation in its preparation was entrusted to Technical Committee GSE/20, Non-dom

4、estic space heaters, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI

5、Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for it

6、s correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interes

7、ts informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 9 and a back cover. The BSI copyright date displayed in this document indicates when the do

8、cument was last issued. Amendments issued since publication Amd. No. Date Comments 14085 Corrigendum No. 1 23 January 2003 Revision of EN forewordEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13410 August 2001 ICS 91.140.30; 97.100.20 Incorporating Corrigendum July 2002 English version Gas-fi

9、red overhead radiant heaters - Ventilation requirements for non-domestic premises Appareils de chauffage rayonnement utilisant les combustibles gazeux - Exigences de ventilation des locaux usage non domestique Heizungsanlagen mit Gas-Infrarotstrahlern - Be- und Entlftung von gewerblich und industrie

10、ll genutzten Gebuden This European Standard was approved by CEN on 8 March 2001. 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-date lists and b

11、ibliographical references concerning such national standards may be obtained on application to the 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

12、of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, No

13、rway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2001 CEN All rights of exploitation in any form and by any means reserved worldwi

14、de for CEN national Members. Ref. No. EN 13410:2001 EEN 13410:2001 (E) 2 Foreword This European Standard has been prepared by Technical Committee CEN/TC 180 “Non-domestic gas-fired overhead radiant heaters“, the secretariat of which is held by BSI. This European Standard shall be given the status of

15、 a national standard, either by publication of an identical text or by endorsement, at the latest by February 2002, and conflicting national standards shall be withdrawn at the latest by February 2002. This European Standard has been prepared under a mandate given to CEN by the European Commission a

16、nd the European Free Trade Association. 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, Germany, Greece, Iceland, Ireland, Ita

17、ly, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Gas-fired overhead radiant heaters fall within the scope of the Gas Appliance Directive, 90/396/EEC and as such are required to bear the CE mark according to the appropriate Regulations. This European S

18、tandard has been prepared with the support of CEN/PC 3, now replaced by the Sector Forum Gas, with the intention of harmonising national installation and ventilation requirements for heating systems, consisting of one or more individual overhead radiant heating appliances. The scope of the Gas Appli

19、ance Directive does not indicate a maximum value for the heat input of an individual gas appliance. However, in the scope of EN 416-1: 1999 and EN 419-1:1999 the heat input of an individual radiant heater is limited to 120 kW (based on the net calorific value of the appropriate reference gas), this

20、being the maximum rating at which it is anticipated that an appliance of the type covered by this standard will be marketed, installed and operated.EN 13410:2001 (E) 3 1 Scope This European Standard specifies the requirements for the ventilation of non-domestic premises where gas-fired radiant heate

21、rs complying with EN 416-1:1999 or EN 419-1:1999 are installed and operated. This European Standard is applicable to type Aappliances (see 3.2). 2 Normative References This European Standard incorporates, by dated or undated reference, provisions from other publications. These normative references a

22、re 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. For undated references the latest e

23、dition of the publication referred to applies (including amendments). EN 416-1:1999 Single burner gas-fired overhead radiant-tube heaters Part 1: Safety EN 419-1:1999 Non-domestic gas-fired overhead luminous radiant heaters Part 1: Safety 3 Terms and definitions For the purposes of this standard the

24、 following terms and definitions apply: 3.1 appliance and its constituent parts 3.1.1 overhead radiant heater gas-fired appliance intended for installation at a height above head level and which is designed to heat the space beneath by radiation 3.1.2 overhead luminous radiant heater overhead radian

25、t heater in which the heat is produced by means of burning the fuel at or near the outer surface of a material such as a ceramic plaque or gauze, or by means of an atmospheric burner heating a gauze or similar material EN 419-1: 1999 3.1.3 overhead radiant tube heater gas-fired appliance intended fo

26、r installation above head level which is designed to heat the space beneath by radiation by means of a tube or tubes, heated by the internal passage of combustion products EN 416-1: 1999 3.1.4 atmospheric burner aerated burner in which the air for combustion is entrained at atmospheric pressure EN 4

27、19-1: 1999 3.2 type A appliance appliance not intended for connection to a flue or to a device for evacuating the products of combustion to the outside of the room in which the appliance is installedEN 13410:2001 (E) 4 3.3 means of ventilation 3.3.1 ventilation by thermal evacuation convective evacu

28、ation of the products of combustion/air mixture through defined openings in the roof or the walls of a building 3.3.2 ventilation by mechanical evacuation evacuation of the products of combustion/air mixture by one or more fans in the roof or the walls of a building 3.3.3 ventilation by natural air

29、change evacuation of the products of combustion/air mixture through undefined openings by pressure differences and temperature differences between the inside and outside of a building 4 Installation and connection 4.1 Installation room The installation room shall have a volume of at least 10 m/kW of

30、 installed nominal heat input of the radiant heaters. 4.2 Evacuation of the products of combustion 4.2.1 General The products of combustion from radiant heaters shall be evacuated out of the installation room to the outside of the building. For type Aappliances it is done by non-direct evacuation of

31、 the products of combustion. The products of combustion leave the appliance, mix with the air in the installation room and leave the building. This ventilation may be achieved by any of the three following different means: a) thermal evacuation of the products of combustion/air mixture; b) mechanica

32、l evacuation of the products of combustion/air mixture; c) natural air change. The following sub clauses describe the detailed calculations to be performed for all three ventilation methods (see Annex A). 4.2.2 Ventilation by thermal evacuation 4.2.2.1 The air of the room mixed with the products of

33、combustion shall be evacuated above the radiant heaters, if possible near the ridge by means of exhaust air openings. 4.2.2.2 Exhaust air openings shall be constructed and located so that suction of the exhaust air shall not be disturbed by wind influence. European or National regulations and guidel

34、ines may prescribe the location of exhaust air openings. 4.2.2.3 Shut down devices and restrictors at exhaust air openings are permissible if an automatic safety device ensures opening of the devices/restrictors for the safe operation of the appliances. Otherwise exhaust air openings shall not be re

35、stricted or closed.EN 13410:2001 (E) 5 4.2.2.4 The number and arrangement of the exhaust air openings depend on radiant heater arrangement and room geometry. The horizontal distance between a radiant heater and an exhaust air opening shall not exceed six times the exhaust air opening height (measure

36、d to the centre of the opening) for wall openings and three times the exhaust air opening height (measured to the centre of the opening) for roof openings. 4.2.2.5 Ventilation by thermal evacuation is sufficient if 10 m/h of exhaust air per kW of operating heat input are ventilated out of the instal

37、lation room. 4.2.2.6 When applicable, the exhaust air flow rate shall take into account any exhaust air flow rate required for other purposes. The size and number of openings is then computed based on the higher of these air flow rates. 4.2.2.7 The calculation methods are as follows. a) Calculation

38、of the necessary exhaust air volume rate. V tot= Q NB L where: V tot is the total necessary exhaust air volume rate in m/h; Q NBis the total operating heat input of all radiant heaters in kW; L is the specific exhaust air rate ( 10 m/h)/kW. b) Calculation of the evacuation velocity at the exhaust ai

39、r opening. The evacuation velocity may be taken from Figure 1, where: h is the vertical distance from the centre of the inlet opening to the centre of the exhaust opening in m; v is the evacuation velocity in m/s; t is the temperature difference t 2 t 1in o C; where t 1 is the lowest outdoor tempera

40、ture in o C; t 2 is the indoor temperature in o C.EN13410:2001(E) 6 Figure1isvalidforexhaustairopeningsandcircuitsfreeofinternalobstaclesorbends. Key 1 Evacuationvelocity v(m/s) 2Temperature difference t(C) Figure1Evacuationvelocityattheexhaustopening c) Calculationofthefreecrosssectionoftheexhausta

41、iropening. Thefreecrosssectionoftheexhaustairopeningisgivenbythefollowingequation: A= n v V 3600 where: A isthefreecrosssectionofallexhaustairopeningsinm; V isthetotalexhaustairvolumerateinm/h; v istheevacuationvelocityinm/s; n isthenumberofexhaustairopenings. Slitsandgapsoffixedcrosssectioncanalsob

42、eusedasexhaustairopenings.EN 13410:2001 (E) 7 4.2.3 Ventilation by mechanical evacuation 4.2.3.1 The products of combustion mixed with room air shall be evacuated from above the radiant heaters using fans. Only fans with a steep characteristic shall be used. 4.2.3.2 It shall only be possible to oper

43、ate the radiant heaters when the exhaust air evacuation is assured. 4.2.3.3 The number and arrangement of the fans depend on radiant heater arrangement and room geometry. The horizontal distance between a radiant heater and a fan shall not exceed six times the fan mounting height (measured to the ax

44、is of the fan) for wall mounted fans and three times the fan mounting height (measured to the axis of the fan) for roof mounted fans. The fans shall be installed above the radiant heaters, if possible near the ridge. 4.2.3.4 Ventilation by mechanical evacuation is sufficient if 10 m/h of exhaust air

45、 per kW of operating heat input are ventilated out of the installation room. 4.2.3.5 When applicable, the exhaust air flow rate shall take into account any exhaust air flow rate required for other purposes. The fan capacity is then computed based on the higher of these air flow rates. 4.2.3.6 The ca

46、lculation methods are as follows. a) Calculation of the necessary exhaust air volume rate: V tot= Q NB L where: V tot is the total necessary exhaust air volume rate in m/h; Q NBis the total operating heat input of all radiant heaters in kW; L is the specific exhaust air rate ( 10 m/h)/kW. b) The tot

47、al fan capacity, whether provided by one or more fans, shall be at least equal to the value of V totas computed in a). 4.2.4 Ventilation by natural air change Gas-fired radiant heaters may be operated without any special exhaust system, if the exhaust gases are discharged to the outside atmosphere b

48、y a sufficient natural air change in the installation room. No provision for thermal or mechanical ventilation is needed in the following particular cases: - buildings with natural air change greater than 1,5 volumes per hour; - buildings with density of operating heat input not greater than 5 W/m.E

49、N 13410:2001 (E) 8 4.3 Air supply Air supply openings are required to admit air and shall be located below the radiant heaters. Exceptions are possible if the air supply openings are between the individual heaters and their location has been planned after proper evaluation of the air flow. The sum of the unobstructed cross-sections of all air