1、BSI Standards PublicationBS EN ISO 11855-1:2015Building environment design Design, dimensioning,installation and control ofembedded radiant heating andcooling systemsPart 1: Definition, symbols, and comfortcriteria (ISO 11855-1:2012)BS EN ISO 11855-1:2015 BRITISH STANDARDNational forewordThis Britis
2、h Standard is the UK implementation of EN ISO11855-1:2015. It is identical to ISO 11855-1:2012. It supersedes BS EN15377-1:2008 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee RHE/24, Central heating installations.A list of organizations represented on
3、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. The British Standards Institution 2015. Published by BSI StandardsLimited 2015ISBN 978 0 580 88070 4ICS
4、91.140.10; 91.140.30Compliance 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 2015.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUR
5、OPENNE EUROPISCHE NORM EN ISO 11855-1 August 2015 ICS 91.140.10; 91.140.30 Supersedes EN 15377-1:2008English Version Building environment design - Design, dimensioning, installation and control of embedded radiant heating and cooling systems - Part 1: Definition, symbols, and comfort criteria (ISO 1
6、1855-1:2012) Conception de lenvironnement des btiments - Conception, construction et fonctionnement des systmes de chauffage et de refroidissement par rayonnement - Partie 1: Dfinition, symboles et critres de confort (ISO 11855-1:2012) Umweltgerechte Gebudeplanung - Planung, Auslegung, Installation
7、und Steuerung flchenintegrierter Strahlheizungs- und -khlsysteme - Teil 1: Definitionen, Symbole und Komfortkriterien (ISO 11855-1:2012) This European Standard was approved by CEN on 30 July 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the condition
8、s 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 Standard exists in
9、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 national standards
10、 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, Slovakia, Sloveni
11、a, 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 means reserved wo
12、rldwide for CEN national Members. Ref. No. EN ISO 11855-1:2015 EBS EN ISO 11855-1:2015EN ISO 11855-1:2015 (E) 3 European foreword The text of ISO 11855-1:2012 has been prepared by Technical Committee ISO/TC 205 “Building environment design” of the International Organization for Standardization (ISO)
13、 and has been taken over as EN ISO 11855-1:2015 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 tex
14、t or by endorsement, at the latest 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 determin
15、e the design heating or cooling capacity 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 us
16、ed. 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. This document supersedes EN 15377-1:2008. According to the CEN-CENELEC Internal Re
17、gulations, 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland,
18、 Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 11855-1:2012 has been approved by CEN as EN ISO 11855-1:2015 without any modification. BS EN
19、 ISO 11855-1:2015ISO 11855-1:2012(E) ISO 2012 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope 12 Normative references . 13 Terms and definitions . 14 Symbols and abbreviations 105 Comfort criteria 155.1 General thermal comfort .155.2 Local thermal comfort 175.3 Acoustical comfor
20、t 20Annex A (informative) Floor surface temperature for thermal comfort 22Annex B (informative) Draught 25Bibliography .26BS EN ISO 11855-1:2015ISO 11855-1:2012(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodie
21、s). The work of preparing International Standards is normally 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 n
22、on-governmental, in liaison with ISO, also take part in the 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, Par
23、t 2.The main task of technical committees is to prepare International 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
24、a vote.Attention is drawn to the possibility that some of 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 11855-1 was prepared by Technical Committee ISO/TC 205, Building environment design. ISO 11
25、855 consists of the following parts, under the general title 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 capac
26、ity Part 3: Design and dimensioning Part 4: Dimensioning and calculation of the dynamic heating and cooling capacity of Thermo Active Building Systems (TABS) Part 5: Installation Part 6: ControlPart 1 specifies the comfort criteria which should be considered in designing embedded radiant heating and
27、 cooling systems, since the main objective of the radiant 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 hea
28、ting and cooling systems to ensure the heating and cooling 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
29、 renewable energy. Part 5 addresses the installation process 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
30、 building. iv ISO 2012 All rights reservedBS EN ISO 11855-1:2015ISO 11855-1:2012(E)IntroductionThe 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 t
31、hat directly controls heat exchange within the space. It does not include 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 g
32、ap, 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 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 de
33、sign embedded systems. To do this, it presents comfort criteria for the space served by embedded systems, heat output calculation, dimensioning, dynamic analysis, installation, operation, and control method of embedded systems. ISO 2012 All rights reserved vBS EN ISO 11855-1:2015BS EN ISO 11855-1:20
34、15Building environment design Design, dimensioning, installation and control of embedded radiant heating and cooling systems Part 1: Definition, symbols, and comfort criteria1 ScopeThis part of ISO 11855 specifies the basic definitions, symbols, and a comfort criteria for radiant heating and cooling
35、 systems.The ISO 11855 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 syst
36、ems with open air gaps which are not integrated into the building structure.The ISO 11855 series also applies, 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 ch
37、illed ceiling panels or beams.2 Normative referencesISO 7726:1998, Ergonomics of the thermal environment Instruments for measuring physical quantitiesISO 7730:2005, Ergonomics of the thermal environment Analytical determination and interpretation of thermal comfort using calculation of the PMV and P
38、PD indices and local thermal comfort criteriaISO 13731:2003, Ergonomics of the thermal environment Vocabulary and symbols3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply. 2.1additional thermal resistancethermal resistance representing layers added t
39、o the building structure and acting mostly as thermal resistances because of their own low thermal inertiaEXAMPLE Carpets, moquette, and suspended ceilings.2.2average specific thermal capacity of the internal wallsthermal capacity related to one square metre of the internal walls NOTE Since internal
40、 walls are shared with other rooms, then just half of the total specific thermal capacity of the wall must be taken into account, since the second half is influenced by the opposite rooms that are considered to be at the same thermal conditions as the one under consideration.2.3average surface tempe
41、ratures,maverage value of all surface temperatures in the occupied or peripheral areaINTERNATIONAL STANDARD ISO 11855-1:2012(E) ISO 2012 All rights reserved 1BS EN ISO 11855-1:2015ISO 11855-1:2012(E)2.4basic characteristic curvecurve or formula reflecting the relationship between the heat flux and t
42、he mean surface temperature differenceNOTE This depends on heating/cooling and surface (floor/wall/ceiling) but not on the type of embedded system.2.5calculation time steplength of time considered for the calculation of the temperatures and heat flows in the room and slabNOTE This is typically assum
43、ed to equal 3 600 s.2.6circuitsection of system connected to a distributor which can be independently switched and controlled2.7circuit total thermal resistancethermal resistance representing the circuit as a whole, determining a straight connection between the water inlet temperature and the mean t
44、emperature at the pipe level NOTE It includes the water flow thermal resistance, the convection thermal resistance at the pipe inner side, the pipe thickness thermal resistance, and the pipe level thermal resistance.2.8clothing insulationbasic clothing insulation that is the resistance of a uniform
45、layer of insulation covering the entire body that has the same effect on sensible heat flow as the actual clothing under standardized (static, wind-still) conditionsNOTE The definition of clothing insulation also includes the uncovered parts of the body, e.g. the head. It is described as the intrins
46、ic insulation from the skin to the clothing surface, not including the resistance provided by the air layer around the clothed body, and is expressed in the clo unit or in m2K/W; 1 clo = 0,155 m2K/W.2.9conductive region of the slabregion of the slab that includes the pipes with thermal conductivitie
47、s of the layers higher than 0,8 W/(mK) NOTE Due to the subdivision of the slab into an upper slab and a lower slab, the conductive region is also subdivided into an upper conductive region and a lower conductive region.2.10convection thermal resistance at the pipe inner sidethermal resistance associ
48、ated to the convection heat transfer taking place between the water flowing in the pipe and the pipe inner side, thus connecting the mean water temperature along the circuit with the mean temperature of the pipe inner side2.11convective heating and cooling systemsystem that directly conditions the a
49、ir in the room for the purpose of heating and cooling2.12convective peak loadmaximum cooling load to be extracted by a virtual convective system used to keep comfort conditions in the room2.13daily average temperature of the conductive region of the slabaverage temperature of the conductive region of the slab during the day2.14design cooling capacityQH,cthermal output by a cooling surface at design conditions 2 ISO 2012 All rights reservedBS EN ISO 11855-1:2015ISO 11855-1:2012(E)2.15design cooling loadQN,crequired thermal output necessar
