1、November 2016 English price group 24No 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!%v*“258830
2、7www.din.deDIN EN ISO 11855-2Building environment design Design, dimensioning, installation and control of embedded radiant heating and cooling systems Part 2: Determination of the design heating and cooling capacity (ISO 118552:2012);English version EN ISO 118552:2015,English translation of DIN EN
3、ISO 11855-2:2016-11Umweltgerechte Gebudeplanung Planung, Auslegung, Installation und Steuerung flchenintegrierter Strahlheizungs und khlsysteme Teil 2: Bestimmung der AuslegungsHeiz bzw. -Khlleistung (ISO 118552:2012);Englische Fassung EN ISO 118552:2015,Englische bersetzung von DIN EN ISO 11855-2:2
4、016-11Conception de lenvironnement des btiments Conception, dimensionnement, installation et contrle des systmes intgrs de chauffage et de refroidissement par rayonnenment Partie 2: Dtermination de la puissance calorifique et frigorifique la conception (ISO 118552:2012);Version anglaise EN ISO 11855
5、2:2015,Traduction anglaise de DIN EN ISO 11855-2:2016-11SupersedesDIN EN ISO 118552:201511www.beuth.deDocument comprises 67 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.12.16DIN EN ISO 11855-2:2016-11 2 A comma is used as th
6、e decimal marker. National foreword The text of ISO 11855-2:2012 has been prepared by Technical Committee ISO/TC 205 “Building environment design” and has been taken over as EN ISO 11855-2:2015 by Technical Committee CEN/TC 228 “Heating systems and water based cooling systems in buildings” (Secretar
7、iat: DIN, Germany). The responsible German body involved in its preparation was DIN-Normenausschuss Heiz- und Raumlufttechnik (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
8、DIN Standard corresponding to the International Standard referred to in this document is as follows: ISO 11855-1 DIN EN ISO 11855-1 Amendments This standard differs from DIN EN 15377-1:2009-02 as follows: a) definitions and comfort criteria are now dealt with in DIN EN ISO 11855-1; b) methods of det
9、ermining the heating and cooling capacity are dealt with in this part of the standard; c) the standard has been editorially revised. Compared with DIN EN ISO 11855-2:2015-11 the following corrections have been made which, except for the national footnote in the European foreword, apply to the German
10、 version only: a) a national footnote has been included in the European foreword; b) in Subclause 7.1, paragraph above Figure 2, the modal auxiliary verb has been corrected; c) in Annex A.2.6, Equation (A.25a) has been corrected; d) in Annex A.3, Equation (A.32), “KH,Floor” has been corrected to rea
11、d “KH,Fuboden”; e) in Annex A.3, explanation for Equation (A.33), 2ndparagraph, “R,B 0” has been corrected to read “R,B= 0”; f) Equation (B.14) has been corrected. Previous editions DIN EN 15377-1: 2009-02 DIN EN ISO 11855-2: 2015-11 DIN EN ISO 11855-2:2016-11 3 National Annex NA (informative) Bibli
12、ography 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 11855-2:2016-11 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EURO
13、PISCHE NORM EN ISO 11855-2 August 2015 ICS 91.140.10; 91.140.30 English Version 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 (ISO 11855-2:2012) Conception de
14、 lenvironnement des btiments Conception, dimensionnement, installation et contrle des systmes intgrs de chauffage et de refroidissement par rayonnement Partie 2: Dtermination de la puissance calorifique et frigorifique la conception (ISO 11855-2:2012) Umweltgerechte Gebudeplanung Planung, Auslegung,
15、 Installation und Steuerung flchenintegrierter Strahlheizungs- und -khlsysteme Teil 2: Bestimmung der Auslegungs-Heiz- bzw. -Khlleistung (ISO 11855-2:2012) This European Standard was approved by CEN on 30 July 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stip
16、ulate 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-CENELEC Management Centre or to any CEN member. This European
17、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 the same status as the official versions. CEN members are the
18、 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, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
19、 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-1000 Brussels 2015 CEN All rights of exploitation in any form and by any
20、 means reserved worldwide for CEN national Members. Ref. No. EN ISO 11855-2:2015 EEN ISO 11855-2:2015 (E) 2 Contents Page European foreword . 4 Foreword 5 Introduction 6 1 Scope 7 2 Normative references 7 3 Terms and definitions . 8 4 Symbols and abbreviations . 8 5 Concept of the method to determin
21、e the heating and cooling capacity 9 6 Heat exchange coefficient between surface and space . 10 7 Simplified calculation methods for determining heating and cooling capacity or surface temperature . 12 7.1 Universal single power function . 13 7.2 Thermal resistance methods . 15 8 Use of basic calcul
22、ation programmes . 17 8.1 Basic calculation programmes 17 8.2 Items to be included in a complete computation documentation 17 9 Calculation of the heating and cooling capacity 18 Annex A (normative) Calculation of the heat flux 19 A.1 General . 19 A.2 Reference heating systems . 19 A.2.1 General . 1
23、9 A.2.2 Systems with pipes inside the screed (type A and type C) 20 A.2.3 Systems with pipes below the screed or timber floor (type B) . 22 A.2.4 Plane section systems . 23 A.2.5 Limits of heat flux . 24 A.2.6 Influence of pipe material, thickness of the pipe wall and pipe sheathing on the heat flux
24、 . 26 A.2.7 Thermal conductivity of screed with fixing inserts . 27 A.2.8 Downward heat loss 27 A.3 Heating and cooling surfaces embedded in floors, ceilings and walls 28 A.4 Figures and tables 29 Annex B (normative) General resistance method . 42 B.1 General equations 42 B.2 Calculation of Rtfor pi
25、pes embedded in massive concrete (steady state conditions) 43 B.3 Calculation of Rtfor capillary pipes embedded in a layer at the inner surface (steady state conditions) . 45 DIN EN ISO 11855-2:2016-11 EN ISO 11855-2:2015 (E) 3 Annex C (normative) Pipes embedded in wooden construction 48 C.1 Field o
26、f application 48 C.2 Determination of heat exchange by calculation 48 C.2.1 Applicability . 48 C.2.2 The calculation model General 48 C.2.3 Calculation procedure for determination of equivalent heat transmission coefficient . 49 C.2.4 Calculation procedure for components and element characteristics
27、. 51 Annex D (normative) Method for verification of FEM and FDM calculation programs 56 D.1 Temperature distribution and heat transfer in a typical floor cooling system . 56 Annex E (normative) Values for heat conductivity of materials and air layers . 60 E.1 Solid materials . 60 E.2 Trapped air lay
28、ers 60 Bibliography . 62 DIN EN ISO 11855-2:2016-11 EN ISO 11855-2:2015 (E) 4 European foreword The text of ISO 11855-2:2012 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
29、 11855-2:2015 by Technical Committee CEN/TC 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
30、 by February 2016, and conflicting national 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 ca
31、pacity used for the design and evaluation of 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 poss
32、ibility 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. N1)According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countrie
33、s are bound to implement this European 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
34、, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 11855-2:2012 has been approved by CEN as EN ISO 11855-2:2015 without any modification. N1)National footnote: The reference to the European Standard which this docume
35、nt replaces, EN 15377-1:2008, is erroneously missing on the EN title page. DIN EN ISO 11855-2:2016-11 Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normall
36、y carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the
37、work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare In
38、ternational Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of
39、 the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 11855-2 was prepared by Technical Committee ISO/TC 205, Building environment design. ISO 11855 consists of the following parts, under the general t
40、itle Building environment design Design, dimensioning, installation and control of embedded radiant heating and cooling systems: Part 1: Definition, symbols, and comfort criteria Part 2: Determination of the design and heating and cooling capacity Part 3: Design and dimensioning Part 4: Dimensioning
41、 and calculation of the dynamic heating and cooling capacity of Thermo Active Building Systems (TABS) Part 5: Installation Part 6: Control Part 1 specifies the comfort criteria which should be considered in designing embedded radiant heating and cooling systems, since the main objective of the radia
42、nt heating and cooling system is to satisfy thermal comfort of the occupants. Part 2 provides steady-state calculation methods for determination of the heating and cooling capacity. Part 3 specifies design and dimensioning methods of radiant heating and cooling systems to ensure the heating and cool
43、ing capacity. Part 4 provides a dimensioning and calculation method to design Thermo Active Building Systems (TABS) for energy-saving purposes, since radiant heating and cooling systems can reduce energy consumption and heat source size by using renewable energy. Part 5 addresses the installation pr
44、ocess for the system to operate as intended. Part 6 shows a proper control method of the radiant heating and cooling systems to ensure the maximum performance which was intended in the design stage when the system is actually being operated in a building. 5 DIN EN ISO 11855-2:2016-11 EN ISO 11855-2:
45、2015 (E)Introduction The radiant heating and cooling system consists of heat emitting/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
46、the system equipment itself, such as heat source, distribution system and controller. 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 b
47、y this series. The ISO 11855 series shall be applied to systems using not only water 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
48、 space served by embedded systems, heat output calculation, dimensioning, dynamic analysis, installation, operation, and control method of embedded systems. 6DIN EN ISO 11855-2:2016-11 EN ISO 11855-2:2015 (E)1 Scope This part of ISO 11855 specifies procedures and conditions to enable the heat flow i
49、n water based surface heating and cooling systems to be determined relative to the medium differential temperature for systems. The determination of thermal performance of water based surface heating and cooling systems and their conformity to this part of ISO 11855 is carried out by calculation in accordance with design documents and a model. This should enable a uniform assessment and calculation of water based surface heating and cooling systems. The surface temperature and the temperature
