1、November 2015 English price group 12No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 91.140.10; 91.140.30!%GF“236573
2、5www.din.deDIN EN ISO 11855-3Building environment design Design, dimensioning, installation and control of embedded radiant heating and cooling systems Part 3: Design and dimensioning (ISO 11855-3:2012);English version EN ISO 11855-3:2015,English translation of DIN EN ISO 11855-3:2015-11Umweltgerech
3、te Gebudeplanung Planung, Auslegung, Installation und Steuerung flchenintegrierter Strahlheizungs- und -khlsysteme Teil 3: Planung und Auslegung (ISO 11855-3:2012);Englische Fassung EN ISO 11855-3:2015,Englische bersetzung von DIN EN ISO 11855-3:2015-11Conception de lenvironnement des btiments Norme
4、s pour la conception, la construction et le fonctionnement des systmes de chauffage et de refroidissement par rayonnenment Partie 3: Conception et dimensionnement (ISO 11855-3:2012);Version anglaise EN ISO 11855-3:2015,Traduction anglaise de DIN EN ISO 11855-3:2015-11www.beuth.deDocument comprises 2
5、1 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.11.15DIN EN ISO 11855-3:2015-11 2 A comma is used as the decimal marker. National foreword The text of ISO 11855-3:2012 has been prepared by Technical Committee ISO/TC 205 “Buil
6、ding environment design” and has been taken over as EN ISO 11855-3:2015 by Technical Committee CEN/TC 228 “Heating systems and water based cooling systems in buildings” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was DIN-Normenausschuss Heiz- und Raumlufttech
7、nik (DIN Standards Committee Heating and Ventilation Technology), Working Committee NA 041-01-58 AA Heizungsanlagen und wassergefhrte Khlanlagen in Gebuden (SpA CEN/TC 228). The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 11855-1 DIN EN
8、 ISO 11855-1 ISO 11855-2 DIN EN ISO 11855-2 National Annex NA (informative) Bibliography DIN EN ISO 11855-1, Building environment design Design, dimensioning, installation and control of embedded radiant heating and cooling systems Part 1: Definition, symbols and comfort criteria DIN EN ISO 11855-2,
9、 Building environment design Design, dimensioning, installation and control of embedded radiant heating and cooling systems Part 2: Determination of the design heating and cooling capacity EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM August 2015 ICS 91.140.10; 91.140.30 English Version Building
10、 environment design Design, dimensioning, installation and control of embedded radiant heating and cooling systems Part 3: Design and dimensioning (ISO 11855-3:2012) Conception de lenvironnement des btiments - Normes pour la conception, la construction et le fonctionnement des systmes de chauffage e
11、t de refroidissement par rayonnement - Partie 3: Conception et dimensionnement (ISO 11855-3:2012) Umweltgerechte Gebudeplanung - Planung, Auslegung, Installation und Steuerung flchenintegrierter Strahlheizungs- und -khlsysteme - Teil 3: Planung und Auslegung (ISO 11855-3:2012) This European Standard
12、 was approved by CEN on 30 July 2015. 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 bibliographical references concerning such n
13、ational 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 translation under the responsibility of a CEN member into its own la
14、nguage 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, Former Yugoslav Republic of Macedonia, France, Germany, Gree
15、ce, 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 COMIT EUROP EN D E NORMAL ISATION EUROP ISCHES KOMITEE FR NORM
16、UNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 11855-3:2015 E EN ISO 11855-3 Page Contents European foreword 3Introduction .41 Scope . 52 Normative refe
17、rences 53 Terms and definitions . 54 Symbols and abbreviated terms . 55 Radiant panel . 75.1 Floor heating systems . 75.2 Ceiling heating systems 155.3 Wall heating systems 165.4 Floor cooling systems . 175.5 Ceiling cooling systems . 185.6 Wall cooling systems . 18Bibliography .192 EN ISO 11855-3:2
18、015 (E) DIN EN ISO 11855-3:2015-11European foreword The text of ISO 11855-3:2012 has been prepared by Technical Committee ISO/TC 205 “Building environment design” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 11855-3:2015 by Technical Committee CEN/TC
19、228 “Heating systems and water based cooling systems in buildings” the secretariat of which is held by DIN. 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 2016, and conflicting national
20、standards shall be withdrawn at the latest by February 2016. This standard is applicable for design, construction and operation of radiant heating and cooling systems. The methods defined in part 2 are intended to determine the design heating or cooling capacity used for the design and evaluation of
21、 the performance of the system. For identifying product characteristics by testing and proving the thermal output of heating and cooling surfaces embedded in floors, ceilings and walls the standard series EN 1264 can be used. Attention is drawn to the possibility that some of the elements of this do
22、cument 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 to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard
23、: 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, Slovakia, Slovenia, Spain,
24、 Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 11855-3:2012 has been approved by CEN as EN ISO 11855-3:2015 without any modification. 3EN ISO 11855-3:2015 (E) DIN EN ISO 11855-3:2015-11IntroductionThe radiant heating and cooling system consists of heat emitti
25、ng/absorbing, heat supply, distribution, and control systems. The ISO 11855 series deals with the embedded surface heating and cooling system that directly controls heat exchange within the space. It does not include the system equipment itself, such as heat source, distribution system and controlle
26、r.The ISO 11855 series addresses an embedded system that is integrated with the building structure. Therefore, the panel system with open air gap, which is not integrated with the building structure, is not covered by this series.The ISO 11855 series shall be applied to systems using not only water
27、but also other fluids or electricity as a heating or cooling medium.The object of the ISO 11855 series is to provide criteria to effectively design embedded systems. To do this, it presents comfort criteria for the space served by embedded systems, heat output calculation, dimensioning, dynamic anal
28、ysis, installation, operation, and control method of embedded systems.4 EN ISO 11855-3:2015 (E) DIN EN ISO 11855-3:2015-111 ScopeThis part of ISO 11855 establishes a system design and dimensioning method to ensure the heating and cooling capacity of the radiant heating and cooling systems.The ISO 11
29、855 series is applicable to water based embedded surface heating and cooling systems in residential, commercial and industrial buildings. The methods apply to systems integrated into the wall, floor or ceiling construction without any open air gaps. It does not apply to panel systems with open air g
30、aps which are not integrated into the building structure.The ISO 11855 series applies also, as appropriate, to the use of fluids other than water as a heating or cooling medium. The ISO 11855 series is not applicable for testing of systems. The methods do not apply to heated or chilled ceiling panel
31、s or beams.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.EN 12831, Heating
32、 systems in buildings Method for calculation of the design heat loadEN 15243, Ventilation for buildings Calculation of room temperatures and of load and energy for buildings with room conditioning systemsISO 11855-1, Building environment design Design, dimensioning, installation and control of embed
33、ded radiant heating and cooling systems Part 1: Definition, symbols, and comfort criteriaISO 11855-2, Building environment design Design, dimensioning, installation and control of embedded radiant heating and cooling systems Part 2: Determination of the design heating and cooling capacity3 Terms and
34、 definitionsFor the purposes of this document, the terms and definitions given in ISO 11855-1 apply.4 Symbols and abbreviated termsFor the purposes of this document, the symbols and abbreviations in Table 1 apply.Table 1 Symbols and abbreviated termsSymbol Unit QuantityAFm2Area of the heating/coolin
35、g surface5EN ISO 11855-3:2015 (E) DIN EN ISO 11855-3:2015-11Symbol Unit QuantityAAm2Area of the occupied heating/cooling surfaceARm2Area of the peripheral heating/cooling surfaceCWJ/(kgK) Specific heat of mediumKHW/(m2K) Equivalent heat transmission coefficientlpm Distance between the joistslWm Thic
36、kness of the joistM kg/s Design heating/cooling medium flow rateqdesW/m2Design heat fluxqdes,AW/m2Design heat flux in the occupied areaqdes,RW/m2Design heat flux in the peripheral areaqGW/m2Limit heat fluxqmaxW/m2Maximum design heat fluxQdesW Design heating/cooling capacityQNW Design heating/cooling
37、 loadQN,sW Design sensible cooling loadQN,lW Design latent cooling loadQoutW Heat output of supplementary heating equipmentRo(m2K)/W Partial inwards heat transmission resistance of the surface structureRu(m2K)/W Partial outwards heat transmission resistance of the surface structureR,B(m2K)/W Thermal
38、 resistance of surface coveringR,ins(m2K)/W Back side thermal resistance of insulating layersinsm Effective thickness of thermal insulating layerW m Pipe spacingh W/(m2K) Heat transfer coefficientinsW/(mK) Effective thermal conductivity of the thermal insulation layeriW/(mK) Thermal conductivity of
39、the thermal insulation layer between the joistswW/(mK) Thermal conductivity of the joistF,maxC Maximum surface temperatureF,minC Minimum surface temperatureiC Design indoor temperatureRC Return temperature of heating/cooling mediumVC Supply temperature of heating/cooling mediumV,desC Design supply t
40、emperature of heating/cooling mediumHK Heating/cooling medium differential temperatureH,desK Design heating/cooling medium differential temperatureH,GK Limit of heating/cooling medium differential temperatureV,desK Design heating/cooling medium differential supply temperature K Temperature drop/rise
41、 between supply and return mediumTable 1 (continued)6 EN ISO 11855-3:2015 (E) DIN EN ISO 11855-3:2015-115 Radiant panel5.1 Floor heating systems5.1.1 Design procedureFloor heating system design requires determining heating surface area, type, pipe size, pipe spacing, supply temperature of the heatin
42、g medium, and design heating medium flow rate. The design steps are as follows:Step 1: Calculate the design heating load QN. The design heating load QNshall not include the adjacent heat losses. This step should be conducted in accordance with a standard for heating load calculation, such as EN 1283
43、1, based on an index such as operative temperature (OT) (see ISO 11855-1).Step 2: Determine the area of the heating surface AF, excluding any area covered by immovable objects or objects fixed to the building structure.Step 3: Establish a maximum permissible surface temperature in accordance with IS
44、O 11855-1.Step 4: Determine the design heat flux qdesaccording to Equation (1). For floor heating systems including a peripheral area, the design heat flux of peripheral area qdes,Rand the design heat flux of occupied area qdes,Ashall be calculated respectively on the area of the peripheral heat-ing
45、 surface ARand on the area of the occupied heating surface AAcomplying with Equation (2).qQAdesNF=(1)Qq Aq ANdes,R Rdes,A A=+(2)Step 5: For the design of the floor heating systems, determine the room used for design with the maximum design heat flux qmax= qdes.Step 6: Determine the floor heating sys
46、tem such as the pipe spacing and the covering type, and design heating medium differential temperature H,desbased on the maximum design heat flux qmaxand the maximum surface temperature F,maxfrom the field of characteristic curves according to ISO 11855-2 and 5.1.7 in this part of ISO 11855.Step 7:
47、If the design heat flux qdescannot be obtained by any pipe spacing for the room used for the design, it is recommended to include a peripheral area and/or to provide supplementary heat-ing equipment. In this case, the maximum design heat flux qmaxfor the embedded system may now occur in another room
48、. The amount of heat output of supplementary heating equipment Qoutis determined by the following equation:QQQoutNdes=(3)where design heating capacity Qdesis calculated by:QqAdesdes F=(4)Step 8: Determine the backside thermal resistance of insulating layer R,insand the design heating medium flow rat
49、e m (see 5.1.6 and 5.1.8).Step 9: Estimate the total length of heating circuit.7EN ISO 11855-3:2015 (E) DIN EN ISO 11855-3:2015-11If intermittent operation is common, the characteristics of the increase of the heat flow and the surface temperature and the time to reach the allowable conditions in rooms just after switching on the system shall be considered.5.1.2 Heating medium differential temperatureHeating medium differential temperature His calculated as follows (refer to ISO 11855-2):
