1、BRITISH STANDARDBS EN 15316-3-3:2007Heating systems in buildings Method for calculation of system energy requirements and system efficiencies Part 3-3: Domestic hot water systems, generationICS 91.140.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3
2、g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 15316-3-3:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 August 2008 BSI 2008ISBN 978 0 580 55695 1National forewordThis Brit
3、ish Standard is the UK implementation of EN 15316-3-3:2007.The UK participation in its preparation was entrusted to Technical Committee RHE/24, Central heating installations.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not pu
4、rport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN
5、 15316-3-3October 2007ICS 91.140.10English VersionHeating systems in buildings - Method for calculation of systemenergy requirements and system efficiencies - Part 3-3:Domestic hot water systems, generationSystmes de chauffage dans les btiments - Mthode decalcul des besoins nergtiques et des rendeme
6、nts dessystmes - Partie 3-3 : Systmes de production deauchaude sanitaire, gnrationHeizungsanlagen in Gebuden - Verfahren zur Berechnungder Energieanforderungen und Nutzungsgrade der Anlagen- Teil 3-3: Trinkwassererwrmung, ErzeugungThis European Standard was approved by CEN on 18 August 2007.CEN memb
7、ers 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-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application
8、 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the s
9、ame status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Rom
10、ania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reservedwo
11、rldwide for CEN national Members.Ref. No. EN 15316-3-3:2007: EEN 15316-3-3:2007 (E) 2 Contents Page Foreword4 Introduction .6 1 Scope 7 2 Normative references 7 3 Terms and definitions .7 4 Symbols, units and indices 10 5 Energy output of the domestic hot water generation sub-system .11 5.1 General1
12、1 5.2 Domestic hot water systems with a single heat generator .11 5.3 Domestic hot water systems with multiple heat generators.12 5.3.1 General12 5.3.2 Domestic hot water systems with different types of heat generators in a series configuration12 5.3.3 Domestic hot water systems with multiple heat g
13、enerators in a parallel configuration12 6 Indirectly heated hot water storage vessel .13 7 Primary circulation pipes14 7.1 General14 7.2 Thermal losses by a simple estimation method.14 7.3 Thermal losses by a detailed calculation method14 8 Direct heated domestic hot water generation devices 14 8.1
14、General14 8.2 Heat generation systems in single-family dwellings .15 8.3 Heat generation systems others than for single-family dwellings.16 8.3.1 Oil and gas fired boilers16 8.3.2 Direct gas fired domestic storage water heater .16 8.3.3 Direct electrical heated domestic storage water heaters 16 8.3.
15、4 Alternative generators.17 9 Auxiliary energy.17 9.1 Total auxiliary energy consumption 17 9.2 Auxiliary energy consumption for primary circulation pumps.18 9.3 Auxiliary energy consumption for direct heated domestic hot water generation devices18 10 Recoverable heat losses, recovered heat losses a
16、nd unrecoverable heat losses.18 Annex A (informative) Calculation of thermal loss from a gas or oil fired boiler in systems other than for single family dwellings .20 A.1 Calculation of total boiler thermal loss .20 A.2 Calculation of heat loss during boiler operation20 A.3 Calculation of stand-by h
17、eat loss 21 A.3.1 General21 A.3.2 Average boiler temperature during a stand-by period.21 A.3.3 Load factor of a boiler .21 A.3.4 Auxiliary energy consumption for a boiler .22 A.3.5 Nominal output efficiency of a boiler.22 Annex B (informative) Thermal loss from a gas fired domestic storage water hea
18、ter 24 Annex C (informative) Thermal loss from an electrical heated domestic storage water heater (with continuous power on)26 BS EN 15316-3-3:2007EN 15316-3-3:2007 (E) 3 Annex D (informative) Thermal loss from an electrical heated domestic storage water heater (with timed power on).27 Bibliography3
19、1 BS EN 15316-3-3:2007EN 15316-3-3:2007 (E) 4 Foreword This document (EN 15316-3-3:2007) has been prepared by Technical Committee CEN/TC 228 “Heating systems in buildings”, the secretariat of which is held by DS. This European Standard shall be given the status of a national standard, either by publ
20、ication of an identical text or by endorsement, at the latest by April 2008, and conflicting national standards shall be withdrawn at the latest by April 2008. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association (Mandate M/3
21、43), and 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 calculation of the energy performance of buildings. An overview of the whole set of standar
22、ds is given in prCEN/TR 15615. The subjects covered by CEN/TC 228 are the following: design of heating systems (water based, electrical etc.); installation of heating systems; commissioning of heating systems; instructions for operation, maintenance and use of heating systems; methods for calculatio
23、n of the design heat loss and heat loads; methods for calculation of the energy performance of heating systems. Heating systems also include the effect of attached systems such as hot water production systems. All these standards are systems standards, i.e. they are based on requirements addressed t
24、o the system as a whole and not dealing with requirements to the products within the system. Where possible, reference is made to other European or International Standards, a.o. product standards. However, use of products complying with relevant product standards is no guarantee of compliance with t
25、he system requirements. The requirements are mainly expressed as functional requirements, i.e. requirements dealing with the function of the system and not specifying shape, material, dimensions or the like. The guidelines describe ways to meet the requirements, but other ways to fulfil the function
26、al requirements might be used if fulfilment can be proved. Heating systems differ among the member countries due to climate, traditions and national regulations. In some cases requirements are given as classes so national or individual needs may be accommodated. In cases where the standards contradi
27、ct with national regulations, the latter should be followed. BS EN 15316-3-3:2007EN 15316-3-3:2007 (E) 5 EN 15316 Heating systems in buildings Method for calculation of system energy requirements and system efficiencies consists of the following parts: Part 1: General Part 2-1: Space heating emissio
28、n systems Part 2-3: Space heating distribution systems Part 3-1: Domestic hot water systems, characterisation of needs (tapping requirements) Part 3-2: Domestic hot water systems, distribution Part 3-3: Domestic hot water systems, generation Part 4-1: Space heating generation systems, combustion sys
29、tems (boilers) Part 4-2: Space heating generation systems, heat pump systems Part 4-3: Heat generation systems, thermal solar systems Part 4-4: Heat generation systems, building-integrated cogeneration systems Part 4-5: Space heating generation systems, the performance and quality of district heatin
30、g and large volume systems Part 4-6: Heat generation systems, photovoltaic systems Part 4-7: Space heating generation systems, biomass combustion systems According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this Eur
31、opean Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Ki
32、ngdom. BS EN 15316-3-3:2007EN 15316-3-3:2007 (E) 6 Introduction This European Standard is one of a number of standards that together describe methods for calculation of system energy requirements and system efficiencies related to domestic hot water systems. In particular this European Standard spec
33、ifies methods for calculation of the input energy requirements and energy losses of the generation units. The user needs to refer to other European Standards or to national documents for input data and detailed calculation procedures not provided by this European Standard. Only the calculation metho
34、ds are normative. Values necessary to complete the calculations should be given in a national annex. BS EN 15316-3-3:2007EN 15316-3-3:2007 (E) 7 1 Scope This European Standard is part of a set of standards covering the methods for calculation of system energy requirements and system efficiencies of
35、heating systems in buildings. In particular this standard is one of a number of standards dealing with domestic hot water systems. The scope of this specific part is to standardise the methods for calculation of: thermal losses from the domestic hot water generation system; recoverable thermal losse
36、s for space heating from the domestic hot water generation system; auxiliary energy of the domestic hot water generation systems. These values are input data for calculation of the overall energy use according to prEN 15603 and EN 15316-1. This European Standard specifies the: inputs; calculation me
37、thods; outputs. 2 Normative references The 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 15316-3
38、-2, Heating systems in buildings Method for calculation of system energy requirements and system efficiencies Part 3-2 Domestic hot water systems, distribution prEN 50440, Efficiency of domestic electrical storage water-heaters 3 Terms and definitions For the purposes of this document, the following
39、 terms and definitions apply. 3.1 auxiliary energy electrical energy used by technical building systems for heating, cooling, ventilation and/or domestic hot water to support energy transformation to satisfy energy needs NOTE 1 This includes energy for fans, pumps, electronics etc. Electrical energy
40、 input to a ventilation system for air transport and heat recovery is not considered as auxiliary energy, but as energy use for ventilation. NOTE 2 In EN ISO 9488, the energy used for pumps and valves is called “parasitic energy“. 3.2 building construction as a whole, including its envelope and all
41、technical building systems, for which energy is used to condition the indoor climate, to provide domestic hot water and illumination and other services related to the use of the building BS EN 15316-3-3:2007EN 15316-3-3:2007 (E) 8 NOTE The term can refer to the building as a whole or to parts thereo
42、f that have been designed or altered to be used separately. 3.3 calculation period period of time over which the calculation is performed NOTE The calculation period can be divided into a number of calculation steps. 3.4 domestic hot water heating process of heat supply to raise the temperature of t
43、he cold water to the intended delivery temperature 3.5 energy need for domestic hot water heat to be delivered to the needed amount of domestic hot water to raise its temperature from the cold network temperature to the prefixed delivery temperature at the delivery point, not taking into account the
44、 technical building thermal systems 3.6 energy use for space heating or cooling or domestic hot water energy input to the space heating or cooling system or the domestic hot water system to satisfy the energy need for space heating or cooling (including dehumidification) or domestic hot water, respe
45、ctively NOTE If the technical building system serves several purposes (e.g. space heating and domestic hot water), it can be difficult to split the energy use into that used for each purpose. It can be indicated as a combined quantity (e.g. energy need for space heating and domestic hot water). 3.7
46、gross calorific value quantity of heat released by a unit quantity of fuel, when it is burned completely with oxygen at a constant pressure equal to 101 320 Pa, and when the products of combustion are returned to ambient temperature NOTE 1 This quantity includes the latent heat of condensation of an
47、y water vapour contained in the fuel and of the water vapour formed by the combustion of any hydrogen contained in the fuel. NOTE 2 According to ISO 13602-2, the gross calorific value is preferred to the net calorific value. NOTE 3 The net calorific value does not take into account the latent heat o
48、f condensation. 3.8 heating or cooling season period of the year during which a significant amount of energy for heating or cooling is needed NOTE The season lengths are used to determine the operation period of technical systems. 3.9 heat recovery heat generated by a technical building system or li
49、nked to a building use (e.g. domestic hot water) which is utilised directly in the related system to lower the heat input and which would otherwise be wasted (e.g. preheating of the combustion air by flue gas heat exchanger) 3.10 part load operation operation state of the technical system (e.g. heat pump), where the actual load requirement is below the actual output capacity of the device BS EN 15316-3-3:2007EN 15316-3-3:2007 (E) 9 3.11 recoverable system thermal loss part of a system thermal loss which can be recovered to lower either the
