1、BS EN ISO13790:2008ICS 91.120.10; 91.140.10NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDEnergy performanceof buildings Calculation of energyuse for space heatingand cooling (ISO13790:2008)This British Standardwas published underthe authority of theStandards P
2、olicy andStrategy Committee on 3ember 2008 BSI 2008ISBN 978 0 580 55359 2Amendments/corrigenda issued since publicationDate CommentsBS EN ISO 13790:2008National forewordThis British Standard is the UK implementation of EN ISO 13790:2008.It supersedes BS EN 832:2000 and BS EN ISO 13790:2004 which isw
3、ithdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee B/540, Energy performance of materials components andbuildings.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the ne
4、cessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.1DecEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 13790March 2008ICS 91.120.10 Supersedes EN 832:1998, EN ISO 13790:2004 English
5、VersionEnergy performance of buildings - Calculation of energy use forspace heating and cooling (ISO 13790:2008)Performance nergtique des btiments - Calcul desbesoins dnergie pour le chauffage et le refroidissementdes locaux (ISO 13790:2008)Energieeffizienz von Gebuden - Berechnung desEnergiebedarfs
6、 fr Heizung und Khlung (ISO 13790:2008)This European Standard was approved by CEN on 23 February 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up
7、-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN 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 translationunde
8、r the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hun
9、gary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: r
10、ue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 13790:2008: EBS EN ISO 13790:2008EN ISO 13790:2008 (E) 3 Foreword This document (EN ISO 13790:2008) has been prepared by Technical Committee
11、ISO/TC 163 “Thermal performance and energy use in the built environment“ in collaboration with Technical Committee CEN/TC 89 “Thermal performance of buildings and building components” the secretariat of which is held by SIS. This European Standard shall be given the status of a national standard, ei
12、ther by publication of an identical text or by endorsement, at the latest by September 2008, and conflicting national standards shall be withdrawn at the latest by September 2008. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CE
13、N and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 13790:2004, EN 832:1998. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association (Mandate M/343), and
14、supports essential requirements of EU Directive 2002/91/EC on the energy performance of buildings (EPBD). It forms part of a series of standards aimed at European harmonisation of the methodology for the calculation of the energy performance of buildings. An overview of the whole set of standards is
15、 given in CEN/TR 15615. Attention is drawn to the need for observance of EU Directives transposed into national legal requirements. Existing national regulations (with or without reference to national standards) may restrict for the time being the implementation of this European Standard. According
16、to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Li
17、thuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 13790:2008 has been approved by CEN as a EN ISO 13790:2008 without any modification. BS EN ISO 13790:2008ISO 13790:200
18、8(E) ISO 2008 All rights reserved vForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body in
19、terested 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 work. ISO collaborates closely with the International Electrotechni
20、cal 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 International Standards. Draft International Standards adopted by the
21、 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 the elements of this document may be the subject of patent rights.
22、 ISO shall not be held responsible for identifying any or all such patent rights. ISO 13790 was prepared by Technical Committee ISO/TC 163, Thermal performance and energy use in the built environment, Subcommittee SC 2, Calculation methods, in cooperation with CEN/TC 89, Thermal performance of build
23、ings and building components. This second edition cancels and replaces the first edition (ISO 13790:2004), which has been technically revised. A summary of the principal changes is given below. Throughout, statements and equations that were true only for the heating mode have been amplified to accom
24、modate both heating and cooling modes. Throughout, all texts that applied only for monthly or seasonal calculations have been amplified to accommodate hourly as well as monthly and seasonal calculations. The structure has been adapted to maximize the common use of procedures, conditions and input da
25、ta, irrespective of the calculation method. A monthly (and seasonal) method for cooling, similar to the method in the first edition for heating, has been added. A simple hourly method for heating and cooling, to facilitate direct introduction of hourly, daily or weekly patterns (e.g. controls, user
26、behaviour), has been added. For dynamic simulation methods, procedures that are consistent with the boundary conditions and input data for the seasonal, monthly and simple hourly methods have been added for the boundary conditions and input data. The whole document has been scrutinized to check its
27、applicability within the context of building regulations, which require a minimum of ambiguities and subjective choices; where needed, possibilities are offered for national choices as given in national annexes, national building codes or national standards referring to this document, depending on t
28、he purpose/application of the calculations as detailed in this list and on the type or complexity of the building. BS EN ISO 13790:2008ISO 13790:2008(E) vi ISO 2008 All rights reservedIntroduction This standard provides the means (in part) to assess the contribution that building products and servic
29、es make to energy conservation and to the overall energy performance of buildings. This International Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association (Mandate M/343), and supports essential requirements of EU Directive 2002/9
30、1/EC on the energy performance of buildings (EPBD26). It forms part of a series of standards aimed at European harmonization of the methodology for the calculation of the energy performance of buildings. An overview of the whole set of standards to support the EPBD is given in CEN/TR 15615 28. See a
31、lso Annex A. This International Standard is one of a series of calculation methods for the design and evaluation of thermal and energy performance of buildings. It presents a coherent set of calculation methods at different levels of detail, for the energy use for the space heating and cooling of a
32、building, and the influence of the recoverable thermal losses of technical buildings systems such as the heating and cooling system. In combination with other energy performance-related standards (see Figure 1, which gives an outline of the calculation procedure and its links with other energy perfo
33、rmance-related standards), this International Standard can be used for the following applications: a) judging compliance with regulations expressed in terms of energy targets (via the design rating; see Annex A); b) comparing the energy performance of various design alternatives for a planned buildi
34、ng; c) displaying a standardized level of energy performance of existing buildings (the standard calculated rating; see Annex A); d) assessing the effect of possible energy conservation measures on an existing building, by calculation of the energy use with and without the energy conservation measur
35、e; see Annex A; e) predicting future energy resource needs on a regional, national or international scale, by calculating the energy use of typical buildings representative of the building stock. References are made to other International Standards or to national documents for input data and detaile
36、d calculation procedures not provided by this International Standard. BS EN ISO 13790:2008ISO 13790:2008(E) ISO 2008 All rights reserved viiThe main inputs needed for this International Standard are the following: transmission and ventilation properties; heat gains from internal heat sources, solar
37、properties; climate data; description of building and building components, systems and use; comfort requirements (set-point temperatures and ventilation rates); data related to the heating, cooling, hot water, ventilation and lighting systems: partition of building into different zones for the calcu
38、lation (different systems may require different zones); energy losses dissipated and recoverable or recovered in the building (internal heat gains, recovery of ventilation heat loss); airflow rate and temperature of ventilation supply air (if centrally pre-heated or pre-cooled) and associated energy
39、 use for air circulation and pre-heating or pre-cooling; controls. The main outputs of this International Standard are the following: annual energy needs for space heating and cooling; annual energy use for space heating and cooling; length of heating and cooling season (for system running hours) af
40、fecting the energy use and auxiliary energy of season-length-dependent technical building systems for heating, cooling and ventilation. Additional outputs are the following: monthly values of energy needs and energy use (informative); monthly values of main elements in the energy balance, e.g. trans
41、mission, ventilation, internal heat gains, solar heat; contribution of passive solar gains; system losses (from heating, cooling, hot water, ventilation and lighting systems), recovered in the building. BS EN ISO 13790:2008ISO 13790:2008(E) viii ISO 2008 All rights reservedFigure 1 Flow chart of cal
42、culation procedure and links with other standards BS EN ISO 13790:2008INTERNATIONAL STANDARD ISO 13790:2008(E) ISO 2008 All rights reserved 1Energy performance of buildings Calculation of energy use for space heating and cooling 1 Scope This International Standard gives calculation methods for asses
43、sment of the annual energy use for space heating and cooling of a residential or a non-residential building, or a part of it, referred to as “the building”. This method includes the calculation of: a) the heat transfer by transmission and ventilation of the building zone when heated or cooled to con
44、stant internal temperature; b) the contribution of internal and solar heat gains to the building heat balance; c) the annual energy needs for heating and cooling, to maintain the specified set-point temperatures in the building latent heat not included; d) the annual energy use for heating and cooli
45、ng of the building, using input from the relevant system standards referred to in this International Standard and specified in Annex A. The building can have several zones with different set-point temperatures, and can have intermittent heating and cooling. The calculation interval is either one mon
46、th or one hour. For residential buildings, the calculation can also be performed on the basis of the heating and/or cooling season. This International Standard also gives an alternative simple hourly method, using hourly user schedules (such as temperature set-points, ventilation modes or operation
47、schedules of movable solar shading). Procedures are given for the use of more detailed simulation methods to ensure compatibility and consistency between the application and results of the different types of method. This International Standard provides, for instance, common rules for the boundary co
48、nditions and physical input data, irrespective of the calculation approach chosen. Special attention has been given to the suitability of this International Standard for use within the context of national or regional building regulations. This includes the calculation of an energy performance rating
49、 of a building, on the basis of standardized conditions, for an energy performance certificate. The result can have legal implications, in particular when it is used to judge compliance with minimum energy performance levels, which can, for instance, be required to obtain a building permit. For such applications, it is important that the calculation procedures be unambiguous, repeatable and verifiable. A special situation is the calculation of the energy performance in the case of old existing bu
