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1、ISO 13790:2008(E)INTERNATIONALSTANDARDISO13790 ISO 2008 - All rights reservedCofT/rghtOoanoaion kx SlardazaonProvtoed by iHS under kcerse with ISONo reproduction or networkng permtted without bcense trom IHSNotfor Re&ateSecond edition2008-C3-01Energy performance of buildings Calculation of energy us
2、e for space heating and coolingPerformance 6nerg6tique des btiments Calcul des besoins d6nergie pour le chauffage etle refroidissement des locauxReference numberISO 13790:2008(E) ISO 2008PDF disclaimerThis PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file
3、 may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobes licensing policy. The ISO Central Secretariat a
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5、he file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.COPYRIGHT PROTECTED DOCUMENT ISO 2008All rights reserved. Unless otherwise specified, no part of this publication may be re
6、produced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. +41 22 74
7、9 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandISO 13790:2008(E)ContentsForewordIntroduction1 Scope2 Normative references3 Terms and definitions3.1 Time steps, periods and seasons3.2 Spaces, zones and areas3.3 Temperatures3.4 Energy3.5 Building heat transfe
8、r3.6 Building heat gains and recoverable system thermal losses3.7 Building energy balance4 Symbols5 Outline of the calculation procedures5.1 Energy balance of building and systems5.2 Main structure of calculation procedure5.3 Different types of calculation method5.4 Main characteristics of the diffe
9、rent methods5.5 Overall energy balances for building and systems6 Definition of boundaries and zones6.1 General6.2 Boundary of the building for the calculation6.3 Thermal zones6.4 Determination of conditioned floor area, A7 Building energy need for space heating and cooling7.1 Calculation procedure7
10、.2 Energy need for heating and cooling7.3 Multiple steps to integrate or isolate interactions7.4 Length of heating and cooling seasons for operation of season-length-dependentprovisions8 Heat transfer by transmission8.1 Calculation procedure8.2 Total heat transfer by transmission per building zone8.
11、3 Transmission heat transfer coefficients8.4 Input data and boundary conditions9 Heat transfer by ventilation9.1 Calculation procedure9.2 Total heat transfer by ventilation per building zone Seasonal or monthly method9.3 Ventilation heat transfer coefficients9.4 Input data and boundary conditions10
12、Internal heat gains10.1 Calculation procedure10.2 Overall internal heat gains10.3 Internal heat gain elements All methods10.4 Input data and boundary conditions333457782112 56 617172011 Solar heat gains11.1 Calculation procedure5311.2 Overall solar heat gains5411.3 Solar heat gain elements5511.4 Inp
13、ut data and boundary conditions5712 Dynamic parameters6112.1 Calculation procedure6112.2 Dynamic parameters6212.3 Boundary conditions and input data6713 Indoor conditions6813.1 Different modes6813.2 Calculation procedures6913.3 Boundary conditions and input data7614 Energy use for space heating and
14、cooling7614.1 Annual energy needs for heating andcooling, per building zone7614.2 Annual energy needs for heating andcooling, per combination of systems7614.3 Total system energy use for space heating and cooling and ventilation systems7715 Report8115.1 General8115.2 Input data8115.3 Results82Annex
15、A (normative) Parallel routes in normative references85Annex B (normative) Multi-zone calculation with thermal coupling between zones89Annex C (normative) Full set of equations for simple hourly method93Annex D (normative) Alternative formulation for monthly cooling method98Annex E (normative) Heat
16、transfer and solar heat gains of special elements100Annex F (normative) Climate-related data111Annex G (informative) Simplified methods and standard input data113Annex H (informative) Accuracy of the method127Annex I (informative) Explanation and derivation of monthly or seasonal utilization factors
17、136Annex J (informative) Worked example; simple hourly and monthly methods148Annex K (informative) Flow charts of the calculation procedures154Bibliography161 4CwqE I住naionai Ooanuator kx SlardazaonProvtoed by iHS under kcerse with ISO ISO 2008 - All rights reservedNo reproduction or networkng permt
18、ted without bcense trom IHSNotforResateISO 13790:2008(E)ForewordISO (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.
19、 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 work. ISO collaborates closely with the Interna
20、tional 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 International Standards. Draft International Standa
21、rds 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 the elements of this document may be the subject
22、of patent rights. 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 perf
23、ormance of buildings 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 amp
24、lified to accommodate 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, condition
25、s and input data, 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.一 A simple hourly method for heating and cooling, to facilitate direct introduction of hourly, daily or weekly patterns (e.g.
26、controls, user 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 houriy methods have been added for the boundary conditions and input data. The whole document has been scrutinize
27、d to check its 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,
28、 depending on the purpose/application of the calculations as detailed in this list and on the type or complexity of the building.IntroductionThis standard provides the means (in part) to assess the contribution that building products and services make to energy conservation and to the overall energy
29、 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 2002/91/EC on the energy performance of buildings (EPBD(26l). I
30、t 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 also Annex A.This International Standard is one of a se
31、ries 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 building, and the influence of the recoverable thermal
32、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 performance-related standards), this International Standard c
33、an 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 building;c) displaying a standardized level of energy performanc
34、e 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 measure; see Annex A;e) predicting future energy resource needs on
35、 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 detailed calculation procedures not provided by this International St
36、andard.The main inputs needed for this International Standard are the following: transmission and ventilation properties; heat gains from internal heat sources, solar properties;climate data; description of building and building components, systems and use; comfort requirements (set-point temperatur
37、es and ventilation rates); data related to the heating, cooling, hot water, ventilation and lighting systems:一 partition of building into different zones for the calculation (different systems may require different zones); energy losses dissipated and recoverable or recovered in the building (intern
38、al 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 use for air circulation and pre-heating or pre-cooling：controls.The main outputs of this International Standard are the following: an
39、nual 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) affecting the energy use and auxiliary energy of season-length-dependent technical building systems for heating, cooling and ventilation.A
40、dditional outputs are the following: monthly values of energy needs and energy use (informative); monthly values of main elements in the energy balance, e.g. transmission, ventilation, internal heat gains, solar heat; contribution of passive solar gains; system losses (from heating, cooling, hot wat
41、er, ventilation and lighting systems), recovered in the building.心点hts reservedProvtoed by iHS under kcerse with ISONo reproduction or networkng permtted without bcense trom IHSNotfor Re&ateISO 13790:2008(E) ISO 2008 - All rights reservedCop/roht I心naional Ooanoaion kxProvided by IHS under kcerse wi
42、th ISONo reproduction or networkng permtted bcense horn IKSNotfor Re&ateAssessment of overall energy use anddefinition of energy ratingsDelivered energy for heating andcooling, per energy carrierDelivered energy for hot water,lighting and ventilation systemand (de -)humidification, perenergy carrier
43、ISO 13790Climate dataPropertiess6.Ep=nq Buns*ssEnergy use for heating and coolingSimple hourlyI Monthly (or seasonal)DynamicsimulationThree (national) options for calculation ofbuilding energy needs for heating and coolingDynamic parametersSolar and internal heat sourcesVentilation and transmission
44、heat transferPartitioning of building into zones for calculation,including system criteriaZoning rules, building partSpecified indoor conditionsTransmission properties (ISO 13789)Air flow/infiltrationSolar properties-H+ Jll -ill IIPropertiesProject data (building, systems, use,surroundings, location
45、)External climate data (ISO 15927-4)Data for existing buildingsProject dataClimate dataNon -recoverable thermal losses from technical systems; auxiliary energy useGeneralcriteria andvalidationproceduresRecoverable thermal losses from technical building systemsCriteria from systemsCriteriaLighting sy
46、stemsVentilation systemsHot water systemsRoom conditioning systemsHeating systemsRenewable energy systemsIndoor criteria, automationand controlsFigure 1 Flow chart of calculation procedure and links with other standardsISO 13790:2008(E)Energy performance of buildings Calculation of energy use for sp
47、ace heating and cooling1 ScopeThis International Standard gives calculation methods for assessment 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 constant internal temperature;b) the contribution