Energy performance of buildings - Method for calculation of system energy requirements and system efficiencies - Part 5: Space heating and DHW storage systems (not cooling), Module M3-7, M8-7

This European Standard covers energy performance calculation of water based storage sub-systems used for heating, for domestic hot water or for combination of these.
This standard does not cover sizing or inspection of such storage systems.
Table 1 shows the relative position of this standard within the set of EPB standards in the context of the modular structure as set out in EN ISO 52000-1.
NOTE 1   In CEN ISO/TR 52000 2 the same table can be found, with, for each module, the numbers of the relevant EPB standards and accompanying technical reports that are published or in preparation.
NOTE 2   The modules represent EPB standards, although one EPB standard may cover more than one module and one module may be covered by more than one EPB standard, for instance a simplified and a detailed method respectively. See also Clause 2 and Tables A.1 and B.1.

Energetische Bewertung von Gebäuden - Verfahren zur Berechnung der Energieanforderungen und Nutzungsgrade der Anlagen -Teil 5: Raumheizung und Speichersysteme für erwärmtes Trinkwasser (keine Kühlung), Modul M3-7, M8-7

Diese Europäische Norm behandelt die Berechnung der Gesamtenergieeffizienz von wasserbasierten Speicher Teilsystemen, die für die Raumheizung und/oder die Trinkwassererwärmung verwendet werden.
Diese Norm gilt nicht für die Dimensionierung oder Inspektion solcher Speichersysteme.
Tabelle 1 zeigt die relative Position dieser Norm innerhalb des EPB-Normenpakets im Kontext der in EN ISO 52000-1 dargelegten modularen Struktur.
ANMERKUNG 1   In CEN ISO/TR 52000-2 findet sich die gleiche Tabelle mit den Nummern (für jedes Modul) der jeweiligen EPB-Normen und den dazugehörigen technischen Berichten, die bereits veröffentlicht wurden oder sich in der Erstellung befinden.
ANMERKUNG 2   Die Module repräsentieren EPB-Normen, auch wenn eine EPB-Norm mehr als ein Modul abdecken kann und ein Modul von mehr als einer EPB-Norm abgedeckt werden kann, zum Beispiel jeweils ein vereinfachtes und ein detailliertes Verfahren. Siehe auch Abschnitt 2 und Tabellen A.1 und B.1.

Performance énergétique des bâtiments - Méthode de calcul des besoins énergétiques et des rendements des systèmes - Partie 5 : Systèmes de stockage pour le chauffage et l'eau chaude sanitaire (sans refroidissement), Module M3-7, M8-7

La présente Norme européenne traite du calcul de la performance énergétique des sous-systèmes de stockage à eau utilisés pour le chauffage, la production d’eau chaude sanitaire ou une combinaison de ceux-ci.
La présente norme ne couvre pas le dimensionnement ou l’inspection de ces systèmes de stockage.
Le Tableau 1 indique la position relative de la présente norme au sein de l’ensemble de normes PEB dans le contexte de la structure modulaire décrite dans l’EN ISO 52000-1.
NOTE 1   Le CEN ISO/TR 52000 2 fournit le même tableau avec, pour chaque module, les numéros des normes PEB pertinentes et les Rapports techniques associés qui sont publiés ou en préparation.
NOTE 2   Les modules représentent les normes PEB, bien qu’une seule norme PEB puisse couvrir plusieurs modules et qu’un seul module puisse être couvert par plusieurs normes PEB, par exemple une méthode simplifiée et une méthode détaillée respectivement. Voir aussi l’Article 2 et les Tableaux A.1 et B.1.

Energijske lastnosti stavb - Metoda za izračun energijskih zahtev in učinkovitosti sistema - 5. del: Sistemi za ogrevanje prostora in shranjevanje tople sanitarne vode (brez hlajenja) - Modula M3-7 in M8-7

Ta standard zajema izračun energetske učinkovitosti podsistemov shranjevanja na osnovi vode, ki se uporablja za ogrevanje, gospodinjsko toplo vodo ali kombinacijo obeh.
Ta standard ne zajema ugotavljanja velikosti ali nadzora teh sistemov shranjevanja.

General Information

Status
Withdrawn
Publication Date
30-Aug-2017
Withdrawal Date
29-Nov-2017
Current Stage
9020 - Submission to 2 Year Review Enquiry - Review Enquiry
Start Date
15-Oct-2022
Completion Date
15-Oct-2022

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Energetische Bewertung von Gebäuden - Verfahren zur Berechnung der Energieanforderungen und Nutzungsgrade der Anlagen -Teil 5: Raumheizung und Speichersysteme für erwärmtes Trinkwasser (keine Kühlung), Modul M3-7, M8-7Performance énergétique des bâtiments - Méthode de calcul des besoins énergétiques et des rendements des systèmes - Partie 5 : Systèmes de stockage pour le chauffage et l'eau chaude sanitaire (sans refroidissement), Module M3-7, M8-7Energy performance of buildings - Method for calculation of system energy requirements and system efficiencies - Part 5: Space heating and DHW storage systems (not cooling), Module M3-7, M8-791.140.65Oprema za ogrevanje vodeWater heating equipment91.140.10Sistemi centralnega ogrevanjaCentral heating systemsICS:Ta slovenski standard je istoveten z:EN 15316-5:2017SIST EN 15316-5:2018en,fr,de01-maj-2018SIST EN 15316-5:2018SLOVENSKI

STANDARD
SIST EN 15316-5:2018
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15316-5
May
t r s y ICS
{ sä s v rä s râ
{ sä s v rä x w English Version

Energy performance of buildings æ Method for calculation of system energy requirements and system efficiencies æ Performance énergétique des bâtiments æ Méthode de calcul des besoins énergétiques et des rendements des systèmes æ Partie

w ã Systèmes de stockage pour le

Energetische Bewertung von Gebäuden æ Verfahren zur Berechnung der Energieanforderungen und Nutzungsgrade der Anlagen æ Teil

wã Raumheizung und Modul M uæ yá M zæ y This European Standard was approved by CEN on

t y February
t r s yä

egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä

translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä

CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä

EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels

t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN

s w u s xæ wã t r s y ESIST EN 15316-5:2018

EN 15316-5:2017 (E) 2 Contents Page European foreword ....................................................................................................................................................... 5 Introduction .................................................................................................................................................................... 6 1 Scope .................................................................................................................................................................... 8 2 Normative references ................................................................................................................................. 10 3 Terms and definitions ................................................................................................................................ 10 4 Symbols and abbreviations ...................................................................................................................... 11 4.1 Symbols ............................................................................................................................................................ 11 4.2 Subscripts ........................................................................................................................................................ 11 5 Description of the methods ...................................................................................................................... 11 5.1 Output of the method .................................................................................................................................. 11 5.2 Extension of the method ............................................................................................................................ 11 5.3 Technologies covered and schematisation of the hot water storage system ......................... 12 5.4 Principles for hot water storage systems ............................................................................................ 13 6 Calculation of storage systems ................................................................................................................ 14 6.1 Output data ..................................................................................................................................................... 14 6.2 Calculation time steps ................................................................................................................................ 17 6.3 Input data ........................................................................................................................................................ 17 6.3.1 Source of data ................................................................................................................................................ 17 6.3.2 Product data ................................................................................................................................................... 17 6.3.3 System design data ...................................................................................................................................... 19 6.3.4 Control .............................................................................................................................................................. 19 6.3.5 Operating conditions .................................................................................................................................. 19 6.3.6 Constants and physical data ..................................................................................................................... 20 6.4 Calculation procedure ................................................................................................................................ 21 6.4.1 Applicable time-step ................................................................................................................................... 21 6.4.2 Operating conditions calculation ........................................................................................................... 21 6.4.3 Energy calculation (storage modelled with multi volumes – Method A) ................................. 21 6.4.4 Simplified calculation procedure (storage modelled with a single volume – Method B) .. 26 6.4.5 Thermal losses .............................................................................................................................................. 28 6.4.6 Calculation of the auxiliary energy ........................................................................................................ 28 6.4.7 Recoverable, recovered thermal losses ............................................................................................... 28 7 Quality control .............................................................................................................................................. 29 8 Compliance check......................................................................................................................................... 29 Annex A (informative)

Template for input data and choices ...................................................................... 31 A.1 Model information ....................................................................................................................................... 31 A.2 Product description data ........................................................................................................................... 31 A.2.1 Storage type .................................................................................................................................................... 31 A.2.2 Type of energy use (services) .................................................................................................................. 31 A.2.3 Storage fuel ..................................................................................................................................................... 31 A.2.4 CE marking...................................................................................................................................................... 32 SIST EN 15316-5:2018

EN 15316-5:2017 (E) 3 A.2.5 Dimension ....................................................................................................................................................... 32 A.2.6 Energy input/output ................................................................................................................................... 32 A.2.7 Multiple energy input/output .................................................................................................................. 33 A.2.8 Stand-by thermal losses ............................................................................................................................. 33 A.2.9 Factors for energy recovery ..................................................................................................................... 34 A.3 Design data ..................................................................................................................................................... 35 A.3.1 Localization .................................................................................................................................................... 35 A.3.2 Hydraulic connection .................................................................................................................................. 35 A.3.3 Storage control type .................................................................................................................................... 35 A.3.3.1 Type of control .............................................................................................................................................. 35 A.3.3.2 Adaptation of thermal losses for monthly or annual step time ................................................... 36 A.4 Operative conditions for method A – hourly calculation time step ........................................... 36 A.5 Operative conditions for Method B -

bin, monthly or annual calculation time step ........... 37 Annex B (informative)

Default Input data .......................................................................................................... 38 B.1 Model information ....................................................................................................................................... 38 B.2 Product description data ........................................................................................................................... 38 B.2.1 Storage type .................................................................................................................................................... 38 B.2.2 Type of energy use (services) .................................................................................................................. 38 B.2.3 Storage fuel ..................................................................................................................................................... 38 B.2.4 CE marking ...................................................................................................................................................... 38 B.2.5 Dimension ....................................................................................................................................................... 38 B.2.6 Energy input/output ................................................................................................................................... 38 B.2.7 Multiple energy input/output .................................................................................................................. 39 B.2.8 Stand-by thermal losses ............................................................................................................................. 39 B.2.9 Factors for energy recovery ..................................................................................................................... 41 B.3 Design data ..................................................................................................................................................... 41 B.3.1 Localization .................................................................................................................................................... 41 B.3.2 Hydraulic connection .................................................................................................................................. 41 B.3.3 Storage control type .................................................................................................................................... 41 B.3.3.1 Type of control .............................................................................................................................................. 41 B.3.3.2 Adaptation of thermal losses for monthly or annual step time ................................................... 41 B.4 Operative conditions for method A – hourly calculation time step ........................................... 41 B.5 Operative conditions for Method B - bin, monthly or annual calculation time step ............ 42 SIST EN 15316-5:2018

EN 15316-5:2017 (E) 4 Annex C (normative)

Selection of methods ....................................................................................................... 43 C.1 Method A - Model based on a representation of stratified temperature in the storage ..... 43 C.1.1 Applicability of the stratified model ..................................................................................................... 43 C.1.2 Selection of the number of volumes to model the storage unit ................................................... 43 C.2 Method B - Model based on a representation of an homogenous temperature in the storage ` ........................................................................................................................................................... 43 Annex D (informative)

Alternative presentation for Method A.................................................................. 44 D.1 Step 2 - Direct withdrawal of a heat quantity (volume to withdraw) ....................................... 44 D.1.1 General ............................................................................................................................................................. 44 D.1.2 Additional ....................................................................................................................................................... 46 D.2 Step 3 - Temperature of the storage after volume withdrawal ................................................... 46 D.3 Step 6 - indirect heat input and output ................................................................................................ 47 D.4 Rearrange temperatures in the storage to a natural state............................................................ 49 D.5 Heat exchanger - additional ..................................................................................................................... 50 D.5.1 General ............................................................................................................................................................. 50 D.5.2 Indirect heat input in the storage, using a solar collector loop. .................................................. 50 D.5.3 Indirect heat output from the storage to the space heating service. ......................................... 51 Bibliography ................................................................................................................................................................. 52

SIST EN 15316-5:2018

EN 15316-5:2017 (E) 5 European foreword This document (EN 15316-5:2017) has been prepared 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 text or by endorsement, at the latest by November 2017 and conflicting national standards shall be withdrawn at the latest by November 2017. 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 has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. 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, 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 15316-5:2018

EN 15316-5:2017 (E) 6 Introduction This European Standard is part of a series of standards aiming at international harmonization of the methodology for the assessment of the energy performance of buildings, called “set of EPB standards”. All EPB standards follow specific rules to ensure overall consistency, unambiguity and transparency. All EPB standards provide a certain flexibility with regard to the methods, the required input data and references to other EPB standards, by the introduction of a normative template in Annex A and Annex B with informative default choices. EPB standards deal with energy performance calculation and other related aspects (like system sizing) to provide the building services considered in the EPBD. This standard specifies two methods to take into account the energy performance of storage systems for heating of domestic hot water coupled to generation system(s) producing hot water or using independent energy input to the storage unit. This standard presents two methods applicable to the different technologies of water based storage system and related controls systems: — method A applies when the hot water is thermally stratified; — method B applies when the hot water contained in the storage unit(s) is thermally homogeneous. The standard covers typically hourly time-step but can be adapted to different time steps accordingly with the scenarios used for energy use and energy delivered. 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. For the correct use of this standard, Annex A is to be used to specify the choices with the required input data for use with method A (hourly calculation time step) or Method B (other calculation time steps). Default values for use of the Method A and B monthly and annual methods are provided in Annex B. In case the standard is used in the context of national or regional legal requirements, mandatory choices may be given at national or regional level for such specific applications, in particular for the application within the context of EU Directives transposed into national legal requirements. These choices can be made available as National Annex or as separate (e.g. legal) document. It is expected, if the default values and choices in Annex A are not followed due to national regulations, policy or traditions, that: — either the national standardization body will consider the possibility to add or include a National Annex in agreement with the template of Annex A; — or the national or regional authorities will, in the building regulations, reference the standard and prepare data sheets containing the national or regional choices and values, in agreement with the template of Annex A. Heating systems also include the effect of attached systems such as hot water production systems. SIST EN 15316-5:2018

EN 15316-5:2017 (E) 7 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. In cases where the standards contradict with national regulations, the latter should be followed. Table 1 shows the relative position of this standard within the EPB standards. SIST EN 15316-5:2018

EN 15316-5:2017 (E) 8 1 Scope This European Standard covers energy performance calculation of water based storage sub-systems used for heating, for domestic hot water or for combination of these. This standard does not cover sizing or inspection of such storage systems. Table 1 shows the relative position of this standard within the set of EPB standards in the context of the modular structure as set out in EN ISO 52000-1. NOTE 1 In CEN ISO/TR 52000-2, the same table can be found with, for each module, the numbers of the relevant EPB standards and accompanying Technical Reports that are published or in preparation. NOTE 2 The modules represent EPB standards, although one EPB standard may cover more than one module and one module may be covered by more than one EPB standard, for instance a simplified and a detailed method respectively. See also Clause 2 and Tables A.1 and B.1. Table 1 — Position of this standard, within the modular structure of the set of EPB standards Overarching

Building (as such) Technical Building Systems
Descriptions
Descriptions
Descriptions
Heating
Cooling
Ventilation
Humidification
Dehumidification
Domestic
Hot water
Lighting
Building automation
& control
Electricity
production sub1
M1 sub1 M2 sub1
M3 M4 M5 M6 M7 M8 M9 M10 M11 1 General
1 General 1 General 15316-1
15316-1
2 Common terms and definitions; symbols, units and subscripts
2 Building Energy Needs 2 Needs
12831-3
3 Applications
3 (Free) Indoor Conditions without
Systems 3 Maximum Load and Power 12831-1
12831-3
4 Ways to Express Energy Performance

4 Ways to Express Energy Performance 4 Ways to Express Energy Performance 15316-1

15316-1
5 Building Functions and Building Boundaries
5 Heat Transfer by Transmission 5 Emission and control 15316-2 15316-2
6 Building Occupancy and Operating Conditions

6 Heat Transfer by Infiltration and Ventilation 6 Distribution and control 15316-3 15316-3

15316-3
7 Aggregation of Energy Services and Energy Carriers
7 Internal Heat Gains 7 Storage and control 15316-5
15316-5
SIST EN 15316-5:2018
EN 15316-5:2017 (E) 9 Overarching
Building (as such) Technical Building Systems
Descriptions
Descriptions
Descriptions
Heating
Cooling
Ventilation
Humidification
Dehumidification
Domestic
Hot water
Lighting
Building automation
& control
Electricity
production sub1
M1 sub1 M2 sub1
M3 M4 M5 M6 M7 M8 M9 M10 M11 8 Building Partitioning
8 Solar Heat Gains 8 Generation
8–1 Combustion boilers 15316-4-1
15316-4-1
8–2 Heat pumps 15316-4-2
15316-4-2
8–3 Thermal solar Photovoltaics 15316-4-3
15316-4-3
15316-4-3
8–4 On-site cogeneration 15316-4-4
15316-4-4
15316-4-4
8–5 District heating and cooling 15316-4-5 15316-4-5
15316-4-5
15316-4-5
8–6 Direct electrical heater 15316-4-9
15316-4-6
8–7 Wind turbines 15316-4-10
15316-4-7
8–8 Radiant heating, stoves 15316-4-8
9 Calculated Energy Performance
9 Building Dynamics (thermal mass) 9 Load dispatching and operating conditions
10 Measured Energy Performance
10 Measured Energy Performance 10 Measured Energy Performance 15378-3
15378-3
11 Inspection
11 Inspection 11 Inspection 15378-1
15378-1
12 Ways to Express Indoor Comfort
12 – 12 BMS
13 External Environment Conditions
14 Economic Calculation 15459-1
NOTE The shaded modules are not applicable. SIST EN 15316-5:2018

EN 15316-5:2017 (E) 10 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 15316-1, Energy performance of buildings - Method for calculation of system energy requirements and system efficiencies - Part 1: General and Energy performance expression, Module M3-1, M3-4, M3-9, M8-1, M8-4 EN 15316-3, Energy performance of buildings - Method for calculation of system energy requirements and system efficiencies - Part 3: Space distribution systems (DHW, heating and cooling), Module M3-6, M4-6, M8-6 EN ISO 7345:1995, Thermal insulation - Physical quantities and definitions (ISO 7345:1987) EN ISO 52000-1:2017, Energy performance of buildings - Overarching EPB assessment - Part 1: General framework and procedures (ISO 52000-1:2017) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN ISO 7345:1995 and EN ISO 52000-1:2017 and the following apply. 3.1 electric storage water heater ESWH storage water heater powered with electricity and used for domestic hot water energy use 3.2 double service storage water heater DSWH storage water heater used for both heating and domestic hot water energy use 3.3 heat exchanger storage water heater HESWH storage water heater using internal heat exchanger to store the energy provided by an external generation system (solar, boiler, heat pump,…) 3.4 multi energy storage water heater MESWH storage water heater using different energy sources to store the energy 3.5 thermodynamic storage water heater TSWH storage water heater using attached heat pump system to produce and store hot water SIST EN 15316-5:2018

EN 15316-5:2017 (E) 11 4 Symbols and abbreviations 4.1 Symbols For the purposes of this document, the symbols given in EN ISO 52000-1 apply. 4.2 Subscripts For the purposes of this document, the subscripts given in EN ISO 52000-1 and the specific subscripts listed in Table 2 apply. Table 2 —Subscripts Subscript Term Bu Back-up Ref Reference stby Stand-by cold Cold 5 Description of the methods 5.1 Output of the method This method covers the calculation of energy delivered to the storage system, energy delivered from the storage systems to the domestic and hot water distribution system, auxiliary energy and thermal losses (recoverable or not) of storage systems used for heating and/or domestic hot water. The time step of the output can be: — hourly; — bin; — yearly; — monthly, according to the scenarios used to determine the thermal load. 5.2 Extension of the method The method which is presented in the standard can be extended to storage systems with multiple storage units. The adaptation depends of the hydraulic schema used for the design of the storage system: — serial mounting – the storage units are hydraulically linked as the output of the storage unit 'n' become the input of the storage unit 'n+1'. The equations as identical as the calculation procedure will consider a loop for all storage unit to calculate the total energy stored, the energy used and delivered and the corresponding volume of hot water delivered to the system; — parallel mounting – the regulation systems sets the priority for the storage units that are considered independently. SIST EN 15316-5:2018

EN 15316-5:2017 (E) 12 5.3 Technologies covered and schematisation of the hot water storage system The following storage units and control systems are covered: — Storage units (with or without primary circuit); — Control system of the output water: — based on availability of energy delivered to the storage unit(s); — priority given to domestic hot water, then heating (default); — type of power unit (direct, heat exchanger, …) and position in the storage unit. SIST EN 15316-5:2018

EN 15316-5:2017 (E) 13 5.4 Principles for hot water storage systems

Key 1 layer 1 i+1 layer i+1 2 energy input n-1 layer n-1 3 energy input n layer n – number of layers i layer i 4 mixing valve Figure 1 — Gener

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