SIST EN 15316-3-1:2007

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Heating systems in buildings - Method for calculation of system energy requirements and system efficiencies - Part 3.1 Domestic hot water systems, characterisation of needs (tapping requirements)XþLQNRYLWRVWLSRUDEHSystemes de chauffage dans les bâtiments - Méthode de calcul des exigences énergétiques et des rendements du systeme - Partie 3.1 : Systemes d'eau chaude domestique, caractérisation des besoins (exigences de piquage)Heizsysteme in Gebäuden - Verfahren zur Berechnung der Energieanforderungen und Nutzungsgrade der Anlagen - Teil 3-1: Trinkwarmwassererwärmung, Charakterisierung des Bedarfs (Zapfprogramm)Ta slovenski standard je istoveten z:EN 15316-3-1:2007SIST EN 15316-3-1:2007en,de91.140.10Sistemi centralnega ogrevanjaCentral heating systemsICS:SLOVENSKI
STANDARDSIST EN 15316-3-1:200701-december-2007







EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15316-3-1October 2007ICS 91.140.10 English VersionHeating systems in buildings - Method for calculation of systemenergy requirements and system efficiencies - Part 3-1:Domestic hot water systems, characterisation of needs (tappingrequirements)Systèmes de chauffage dans les bâtiments - Méthode decalcul des besoins énergétiques et des rendements dessystèmes - Partie 3-1 : Systèmes de production d'eauchaude sanitaire, caractérisation des besoins (exigencesrelatives au puisage)Heizungsanlagen in Gebäuden - Verfahren zur Berechnungder Energieanforderungen und Nutzungsgrade der Anlagen- Teil 3-1: Trinkwassererwärmung, Charakterisierung desBedarfs (Zapfprogramm)This European Standard was approved by CEN on 18 August 2007.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-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 translationunder 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, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2007 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15316-3-1:2007: E



EN 15316-3-1:2007 (E) 2 Contents Page Foreword.3 Introduction.5 1 Scope.6 2 Normative references.6 3 Terms and definitions.6 4 Symbols, units and indices.9 5 Methods for calculation of energy needs for domestic hot water for different installations.9 5.1 General.9 5.2 Energy needs for domestic hot water based on tapping programs.9 5.3 Energy needs for domestic hot water based on required volume.10 5.3.1 General.10 5.3.2 Domestic hot water delivery temperature.10 5.3.3 Cold water supply temperature.10 5.3.4 Domestic hot water volume.10 5.3.5 Time periods.11 5.4 Energy needs for domestic hot water based directly on floor area.12 5.5 Tabulated energy needs for domestic hot water.12 Annex A (informative)
Tapping programs for single family dwellings.13 Annex B (informative)
Informative values for calculation of the energy needs
for domestic hot water in buildings.17 B.1 Tabulated values.17 B.2 Default values for single family dwellings.18 Bibliography.19



EN 15316-3-1:2007 (E) 3 Foreword This document (EN 15316-3-1:2007) 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 publication 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/343), 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 standards 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 calculation 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 to 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 the 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 functional 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.



EN 15316-3-1:2007 (E) 4 In cases where the standards contradict with national regulations, the latter should be followed. 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 emission 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 systems (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 heating 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 European 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 Kingdom.



EN 15316-3-1:2007 (E) 5 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 describes methods for calculation of the energy needs for domestic hot water. 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 methods are normative. Values necessary to complete the calculations should be given in a national annex. Informative values are given in informative Annex A.



EN 15316-3-1:2007 (E) 6 1 Scope This European Standard is part of a set of standards covering methods for calculation of system energy requirements and system efficiencies of heating systems in buildings. In particular this European 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 determining the energy needs for domestic hot water. This European Standard covers the domestic hot water needs in buildings. The calculation of the energy needs for domestic hot water applies to a dwelling, a building or a zone of a building. In order to be coherent with calculation methods for space heating systems, emission losses representing taps and control should be taken into account. 2 Normative references Not applicable. 3 Terms and definitions For the purposes of this document, the following 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 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 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 NOTE The term can refer to the building as a whole or to parts thereof that have been designed or altered to be used separately. 3.3 building services services provided by technical building systems and by appliances to provide indoor climate conditions, domestic hot water, illumination levels and other services related to the use of the building 3.4 calculated energy rating energy rating based on calculations of the weighted delivered and exported energy of a building for heating, cooling, ventilation, domestic hot water and lighting NOTE National bodies decide whether other energy uses resulting from occupants' activities such as cooking, production, laundering etc. are included or not. If included, standard input data shall be provided for the various types of building and uses. Lighting is always included except (by decision of national bodies) for residential buildings.



EN 15316-3-1:2007 (E) 7 3.5 calculation period period of time over which the calculation is performed NOTE The calculation period can be divided into a number of calculation steps. 3.6 cold water supply temperature water temperature of the cold water distribution network 3.7 domestic hot water heating process of heat supply to raise the temperature of the cold water to the intended delivery temperature 3.8 domestic hot water delivery temperature temperature of the domestic hot water at the delivery point 3.9 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 technical building thermal systems 3.10 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, respectively 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). 3.11 energy performance of a building calculated or measured amount of energy delivered and exported actually used or estimated to meet the different needs associated with a standardised use of the building, which may include, inter alia, energy used for heating, cooling, ventilation, domestic hot water and lighting 3.12 energy rating evaluation of the energy performance of a building based on the weighted sum of the calculated or measured use of energy carriers 3.13 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. 3.14 heat recovery heat generated by a technical building system or linked 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) 3.15 power shower shower having an associated pump to increase the water flow rate and pressure



EN 15316-3-1:2007 (E) 8 3.16 recoverable system thermal loss part of a system thermal loss which can be recovered to lower either the energy need for heating or cooling or the energy use of the heating or cooling system NOTE This depends on the calculation approach chosen to calculate the recovered gains and losses (holistic or simplified approach). 3.17 recovered system thermal loss pa
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