SIST EN 15316-2:2018
(Main)Energy performance of buildings - Method for calculation of system energy requirements and system efficiencies - Part 2: Space emission systems (heating and cooling), Module M3-5, M4-5
Energy performance of buildings - Method for calculation of system energy requirements and system efficiencies - Part 2: Space emission systems (heating and cooling), Module M3-5, M4-5
This standard specifies the required inputs, the outputs and the links (structure) of the calculation method in order to achieve a common European calculation method.
This standard covers energy performance calculation of water based heating and cooling space emission sub-systems.
This standard specifies the structure for calculation of the additional heat losses and energy requirements of a heat emission system or cooling system for meeting the building net energy demand.
The calculation method can be used for the following applications:
- calculation of the additional energy losses in the heat emission system or cooling system;
- optimisation of the energy performance of a planned heat emission system or cooling system, by applying the method to several possible options;
- assessing the effect of possible energy conservation measures on an existing heat emission system or cooling system, by calculation of the energy requirements with and without the energy conservation measure implemented.
Energetische Bewertung von Gebäuden - Verfahren zur Berechnung der Energieanforderungen und Nutzungsgrade der Anlagen - Teil 2: Wärmeübergabesysteme (Raumheizung und -kühlung), Modul M3-5, M4-5
Diese Norm legt die erforderlichen Eingaben, Ausgaben und Verbindungen (die Struktur) des Berechnungs-verfahrens fest, um zu einem gemeinsamen europäischen Berechnungsverfahren zu gelangen.
Diese Norm gilt für die Berechnung der Gesamtenergieeffizienz von wasserbasierten Wärmeübergabe-Teilsystemen zur Raumheizung und kühlung.
Diese Norm legt die Struktur für die Berechnung der zusätzlichen Wärmeverluste und Energieanforderungen eines Wärmeübergabe- oder Kühlsystems zur Deckung des Netto-Energiebedarfs des Gebäudes fest.
Das Berechnungsverfahren kann für die folgenden Anwendungen herangezogen werden:
- Berechnung der zusätzlichen Energieverluste im Wärmeübergabe- oder Kühlsystem;
- Optimierung der Gesamtenergieeffizienz eines geplanten Wärmeübergabe- oder Kühlsystems durch Anwendung des Verfahrens auf mehrere mögliche Optionen;
- Beurteilung der Auswirkungen möglicher Energiesparmaßnahmen auf bestehende Wärmeübergabe- oder Kühlsysteme durch Berechnung der Energieanforderungen mit und ohne Umsetzung der betreffenden Energiesparmaßnahme(n).
Performance énergétique des bâtiments - Méthode de calcul des besoins énergétiques et des rendements des systèmes - Partie 2 : Systèmes d’émission des locaux (chauffage et refroidissement), Module M3-5, M4-5
La présente norme spécifie les entrées requises, les sorties et les liaisons (structure) de la méthode de calcul afin d’obtenir une méthode de calcul européenne commune.
La présente norme traite du calcul des performances énergétiques des sous-systèmes d’émission de chaleur et de refroidissement à eau dans les locaux.
La présente norme spécifie la structure pour le calcul des pertes thermiques et des besoins énergétiques supplémentaires d’un système d’émission de chaleur ou d’un système de refroidissement pour satisfaire au besoin énergétique net des bâtiments.
La méthode de calcul peut être utilisée pour les applications suivantes :
- calcul des pertes énergétiques supplémentaires dans le système d’émission de chaleur ou le système de refroidissement ;
- optimisation des performances énergétiques d’un système d’émission de chaleur ou d’un système de refroidissement prévu, en appliquant la méthode à plusieurs options possibles ;
- évaluation de l’effet d’éventuelles mesures d’économie d’énergie sur un système d’émission de chaleur ou un système de refroidissement existant, en calculant les besoins énergétiques avec et sans les mesures d’économie d’énergie mises en oeuvre.
Energijske lastnosti stavb - Metoda za izračun energijskih zahtev in učinkovitosti sistema - 2. del: Sistemi za prenos toplote (ogrevanje in hlajenje prostora) - Modula M3-5 in M4-5
Ta standard določa zahtevane vhode, izhode in povezave (struktura) računske metode za dosego evropske računske metode.
Ta standard zajema izračun energijske učinkovitosti podsistemov prostorskih emisij ogrevanja in hlajenja s pomočjo vode.
Ta standard določa strukturo za izračun dodatnih toplotnih izgub in energijskih zahtev sistema za emisijo toplote ali sistema hlajenja za izpolnjevanje neto zahtev stavbe po energiji.
To računsko metodo je mogoče uporabiti za naslednje namene:
– izračun dodatne energijske izgube v sistemu za emisijo toplote ali sistemu za hlajenje;
– optimizacija energijske učinkovitosti načrtovanih sistemov za emisijo toplote ali sistemov za hlajenje, z uporabo te metode na več različnih možnostih;
– ocenjevanje učinka morebitnih ukrepov shranjevanja energije v obstoječem sistemu za emisijo toplote ali sistemu za hlajenje z izračunom energijskih zahtev z uvedenim ukrepom shranjevanja energije ali brez njega.
General Information
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Standards Content (Sample)
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 2: Wärmeübergabesysteme (Raumheizung und -kühlung), Modul M3-5, M4-5Performance énergétique des bâtiments - Méthode de calcul des besoins énergétiques et des rendements des systèmes - Partie 2 : Systèmes d’émission des locaux (chauffage et refroidissement), Module M3-5, M4-5Energy performance of buildings - Method for calculation of system energy requirements and system efficiencies - Part 2: Space emission systems (heating and cooling), Module M3-5, M4-591.140.10Sistemi centralnega ogrevanjaCentral heating systemsICS:Ta slovenski standard je istoveten z:EN 15316-2:2017SIST EN 15316-2:2018en,fr,de01-maj-2018SIST EN 15316-2:2018SLOVENSKI
STANDARDSIST EN 15316-2-1:20071DGRPHãþD
SIST EN 15316-2:2018
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15316-2
May
t r s y ICS
{ sä s v rä s r Supersedes EN
s w u s xæ tæ sã t r r yEnglish Version
Energy performance of buildings æ Method for calculation of system energy requirements and system efficiencies æ Module M uæ wá M væ w Performance énergétique des bâtiments æ Méthode de calcul des besoins énergétiques et des rendements des systèmes æ Partie
t ã Systèmes d 5émission des locaux
Energetische Bewertung von Gebäuden æ Verfahren zur Berechnung der Energieanforderungen und Nutzungsgrade der Anlagen æ Teil
tã 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
9
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 tã t r s y ESIST EN 15316-2:2018
EN 15316-2:2017 (E) 2 Contents Page
European foreword . 4 Introduction . 5 1 Scope . 7 2 Normative references . 9 3 Terms and definitions . 9 4 Symbols and abbreviations . 10 4.1 Symbols . 10 4.2 Subscripts . 10 5 Description of the method . 10 5.1 Output of the method . 10 5.2 General description of the method . 11 6 Calculation Method . 11 6.1 Output data . 11 6.2 Calculation time steps . 12 6.3 Input data . 12 6.4 Monthly and yearly calculation procedure . 15 6.5 Hourly calculation procedure . 20 7 Quality control . 24 8 Compliance check. 24 Annex A (normative)
Template for choices, input data and references (Additional heating and cooling losses / auxiliary energy) . 25 A.1 Introduction . 25 A.2 Temperature variation for free heating surfaces (radiators), room heights
¶ 4 m (heating case) . 26 A.3 Temperature Variation for component integrated heating surfaces (panel heaters) (room heights
¶ 4 m, heating case) . 28 A.4 Temperature variation for air heating systems; room heights
¶ 4 m (heating case) . 30 A.5 Temperature Variation for electrical heating (room heights
¶ 4 m, heating case) . 31 A.6 Temperature Variation air heating (ventilation systems, room heights
¶ 4 m, heating case) . 32 A.7 Temperature variation for room spaces with heights > 4 m (large indoor space buildings, heating case) . 32 A.8 Temperature variation for room heaters fired by solid fuel. 35 A.9 Temperature variation for water based cooling systems; room heights
¶ 4 m (cooling case) . 36 A.10 Auxiliary Energy . 37 SIST EN 15316-2:2018
EN 15316-2:2017 (E) 3 A.11 Additional Information . 38 Annex B (informative)
Default choices, input data and references (additional heating and cooling losses / auxiliary energy) . 40 B.1 Introduction. 40 B.2 Temperature variation for free heating surfaces (radiators); room heights
¶ 4 m (heating case) . 41 B.3 Temperature Variation for component integrated heating surfaces (panel heaters) (room heights
¶ 4 m, heating case) . 43 B.4 Temperature variation for air heating systems; room heights
¶ 4 m (heating case) . 45 B.5 Temperature Variation for electrical heating (room heights
¶ 4 m, heating case) . 46 B.6 Temperature Variation air heating (ventilation systems, room heights
¶ 4 m, heating case) . 47 B.7 Temperature variation for room spaces with heights > 4 m (large indoor space buildings, heating case) . 47 B.8 Temperature variation for room heaters fired by solid fuel . 50 B.9 Temperature variation for water based cooling systems; room heights
¶ 4 m (cooling case) . 51 B.10 Auxiliary Energy . 52 B.11 Additional Information . 53 Bibliography . 55
SIST EN 15316-2:2018
EN 15316-2:2017 (E) 4 European foreword This document (EN 15316-2:2017) has been prepared by Technical Committee CEN/TC 228 “Energy performance of buildings”, the secretariat of which is held by DIN. This document supersedes EN 15316-2-1:2007. 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 October 2017, and conflicting national standards shall be withdrawn at the latest by October 2017. The main changes compared to the previous version are: a) only one calculation method for heating and cooling emission systems; b) the calculation method is only based on temperature differences (the calculation method based on efficiency values are no longer exist in the new standard); c) the new calculation method define input parameter from product standards; d) the new standard includes consistent default values for the control devices. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards organisations 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 15316-2:2018
EN 15316-2:2017 (E) 5 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. For the correct use of this standard, a normative template is given in Annex A to specify these choices. Informative default choices are provided in Annex B. CEN/TC 228 deals with heating systems in buildings. Subjects covered by CEN/TC 228 are: a) energy performance calculation for heating systems; b) inspection of heating systems; c) design of heating systems; d) installation and commissioning of heating systems. This standard constitutes the specific part related to space heating and cooling emission, of a set of standards determining methods for calculation of energy losses/requirements of space heating and cooling systems, space cooling systems and domestic hot water systems in buildings. This standard specifies the structure for calculation of the additional heat and cooling losses and energy requirements of a heat and cooling emission systems for meeting the building net energy demand. The calculation method is used for the following applications: — calculation of the additional energy losses in the heat emission system or cooling system; — optimization of the energy performance of a planned heat emission system or cooling system, by applying the method to several possible options; The user should refer to other European Standards or to national documents for input data and detailed calculation procedures not provided by this standard. This standard was developed during the first EPBD mandate and the first version was published in 2008. The revision for inclusion in the second mandate package was performed in 2014. The two calculation methods have been removed from the standard and a new one was added. The standard was updated to cover hourly and monthly time-step. The main target group of this standard are all the users of the set of EPB standards. 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 (either the informative default choices from Annex B or choices adapted to national/regional needs), but in any case following the template of this Annex A) can be made available as National Annex or as separate (e.g. legal) document. Use by or for regulators: 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. These choices (either the informative default choices from Annex B or choices adapted to national / regional needs, but in any case following the template of this Annex A) can be made available as national annex or as separate (e.g. legal) document (national data sheet). SIST EN 15316-2:2018
EN 15316-2:2017 (E) 6 NOTE So in this case: — the regulators will specify the choices;
— the individual user will apply the standard to assess the energy performance of a building, and thereby use the choices made by the regulators. Topics addressed in this standard can be subject to public regulation. Public regulation on the same topics can, for certain applications, override the default values in Annex B of this standard. Public regulation on the same topics can even, for certain applications override the use of this standard. Legal requirements and choices are in general not published in standards but in legal documents. In order to avoid double publications and difficult updating of double documents, the National Annex may refer to the legal texts where national choices have been made by public authorities. It is expected, if the default values and choices in Annex B are not followed due to national regulations, policy or traditions, that: — national or regional authorities prepare data sheets containing the choices and national or regional values, according to the model in Annex A. In this case the National Annex (e.g. NA) refers to this text; — or, by default, the national standards body will consider the possibility to add or include a National Annex in agreement with the template of Annex A, in accordance to the legal documents that give national or regional values and choices. Further target groups are users of the voluntary common European Union certification scheme for the energy performance of non-residential buildings (EPBD art.11.9) and any other Pan EU parties wanting to motivate their assumptions by classifying the building energy performance for a dedicated building stock. More information is provided in the Technical Report accompanying this standard (CEN/TR 15316-6-2,). SIST EN 15316-2:2018
EN 15316-2:2017 (E) 7 1 Scope This European Standard's scope is to standardize the required inputs, the outputs and the links (structure) of the calculation method in order to achieve a common European calculation method. This standard covers energy performance calculation of heating systems and water based cooling space emission sub-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. SIST EN 15316-2:2018
EN 15316-2:2017 (E) 8 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 and 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
15316–4-3
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
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
8–6 Direct electrical heater 15316–4-6
15316–4-6
8–7 Wind turbines
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
SIST EN 15316-2:2018
EN 15316-2:2017 (E) 9 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 215, Thermostatic radiator valves - Requirements and test methods EN 416-2, Single burner gas-fired overhead radiant tube heaters for non-domestic use - Part 2: Rational use of energy EN 419-2, Non-domestic gas-fired overhead luminous radiant heaters - Part 2: Rational use of energy EN 442 (all parts), Radiators and convectors EN 1264 series, Water based surface embedded heating and cooling systems EN 12828, Heating systems in building — Design for water based heating systems EN 12831-1, Energy performance of buildings - Method for calculation of the design heat load - Part 1: Space heating load, Module M3-3 EN 15316-1, Heating systems in buildings - Method for calculation of system energy requirements and system efficiencies - Part 1: General EN 15500, Control for heating, ventilating and air-conditioning applications - Electronic individual zone control equipment 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, EN ISO 52000-1:2017, and the following specific definitions apply. 3.1 heating system heat loss, emission cooling system cooling loss, emission heat/cooling loss through the building envelope due to non-uniform temperature distribution, control inefficiencies and losses of emitters embedded in the building structure 3.2 heating and cooling system heat losses, total sum of the heat and cooling losses from the system, including recoverable heat loss 3.3 control self-acting device with and without auxiliary energy to keep a physical condition as temperature, humidity, etc. close to set-point SIST EN 15316-2:2018
EN 15316-2:2017 (E) 10 3.4 room automation controls BMS room temperature controls in combination with: — timer function; — timer function and self-adoption / self-optimization; timer function and self-adoption / self-optimization and interaction with other components of heating / cooling system like further controls, circulator or heat- / cool-generator (network operation) 4 Symbols and abbreviations 4.1 Symbols For the purposes of this document, the symbols given in EN ISO 52000-1:2017 and the following symbols (see Table 2) apply. Table 2 — Symbols and units Symbol Quantity Unit RF Radiant factor - 4.2 Subscripts For the purposes of this document, the symbols are in accordance with EN ISO 52000-1:2017 and the special symbols shown in Table 3. Table 3 — Subscripts emb embedded im intermittent pmp pump fan fan ini initial rad radiant emt emitter inc increased str stratification hydr hydraulic balancing roomaut room automation con convective 5 Description of the method 5.1 Output of the method The method described in this standard calculate — energy losses (heating and cooling) Qem,ls in kWh; — auxiliary energy – heat/ cooling emission Wem in kWh; — room temperatureθint,inc in Centigrade (°C). The time step of the output can be: — hourly; — monthly; SIST EN 15316-2:2018
EN 15316-2:2017 (E) 11 — yearly; according to the time-step of the input. 5.2 General description of the method The energy performance is assessed by values of the increased space temperatures due to heat and cooling emission system inefficiencies. The method is based on an analysis of the following characteristics of a space heating emission system or cooling system including control: — non-uniform space temperature distribution; — emitters; — emitters embedded in the building structure; — control accuracy of the indoor temperature; — operation of controls / controls systems and emitters. The energy required by the emission system is calculated separately for thermal energy and electrical energy in order to determine the final energy, and subsequently the corresponding primary energy is calculated. The calculation factors for conversion of energy requirements to primary energy shall be decided on a national level. For the calculation of the different characteristics within combined systems it is assumed, that the system is designed under the aspect of energy optimization. 6 Calculation Method 6.1 Output data The output data of this method are listed in Table 4. Table 4 — Output data of this method Description Symbol Unit Validity interval Intended Varying auxiliary energy – heating / cooling emission Wem,ls,aux kWh
rå » M3–1 YES additional energy losses of heat emission Qem,ls kWh
rå » M3–1 YES equivalent internal heating temperature H;int;inc °C
«5 … 40 M3–1 YES equivalent internal cooling temperature C;int;inc °C
«5 … 40 M4–1 YES temperature variation based on losses int;inc °C
«5 … 40 M3–1 YES annual expenditure factor for the heat and cooling emission
ε,,emlsan - 1…2 M3–1 NO convective fraction of the heating/cooling emitter fem,conv - 0.1 M3–1 / M2–2 NO SIST EN 15316-2:2018
EN 15316-2:2017 (E) 12 6.2 Calculation time steps The objective of the calculation is to determine the annual energy demand or the energy demand of a time period of the space heating / cooling emission system. This may be done in one of the following two different ways: — by using annual data for the system operation period and perform the calculations using annual average values; — by dividing the year into a number of calculation periods (e.g. year, month, week, day, hour, boosted sub-period) and perform the calculations for each period using period dependent values and adding up the results for all the periods over the year. 6.3 Input data 6.3.1 Source of data Input data about products that are required for the calculation described in this standard shall be the data supplied by the manufacturer if they are declared according to relevant EN product standards. If no such data from the manufacturer is available or if the required data are not product data, default values are given in Annex B. 6.3.2 Product data (technical data) The product data shall be the value declared by the manufacturer according to certified measurements performed according to the relevant product standards. If values declared by the manufacturer are not available, then default values are given in informative Annex B. Required technical data for this calculation procedure are listed in Table 5. Table 5 — Product technical input data list Characteristics Symbol Catalogue
unit Computed Unit Validity interval Ref. Varying control variation of temperature ctr K K
«5.5 6.4.2 No temperature variation based on control, not certified products ctr,1=K K
«5…+5 6.4.2 No temperature variation based on control, certified products ctr,2K K
«5…+5 6.4.2 No hysteresis of thermostatic valve HK K 0.1 6.4.2 No affect of supply water temperature on TRV head sensing element WK K 0.1 6.4.2 No temperature variation based on not balanced hydraulic systems hydrK K 0.1 6.4.2 No temperature variation based on intermittent controls operation system im,crtK K
«5 .+5 6.4.2 No temperature variation based on intermittent operation of the emission system im,emt=K K
«5 .+5 6.4.2 No SIST EN 15316-2:2018
EN 15316-2:2017 (E) 13 Characteristics Symbol Catalogue
unit Computed Unit Validity interval Ref. Varying temperature variation based on radiation by type of the emission system rad=K K
«5…+5 6.4.2 No temperature variation based on the stratification strK K
«5…+5 6.4.2 No temperature variation based on the stratification - part of influence due to “over-temperature” str,1=K K
«5c+5 6.4.2 No temperature variation based on the stratification - part of influence due to qspecific heat losses
via external componentsr str,2=K K
«5c+5 6.4.2 No temperature variation based on an additional heating / cooling loss by emitters embedded in the envelope emb=K K
«5c+5 6.4.2 No temperature variation based on an additional heating / cooling loss by emitters embedded in the envelope t part of influence due to the qsystemr emb,1=K K
«5…+5 6.4.2 No temperature variation based on an additional heating / cooling loss by emitters embedded in the envelope – part of influence due to “specific heat losses via laying surfaces” emb,2=K K
«5…+5 6.4.2 No temperature variation based on room automation roomout=K K
«5…+5 6.4.2 No radiant factor of radiant heaters for room heights
· 4m RF
0.1 6.4.2 No room height hR m m 2.50 6.4.2 No electrical rated power consumption of the control Pctr W W 0.500 6.4.4 No electrical rated power consumption of the equipment PH,aux W W 0.500 6.4.4 No electrical rated power consumption of the fan Pfan W W 0.500 6.4.4 No Design nominal useful emitter power Hemn kW W 0…
No SIST EN 15316-2:2018
EN 15316-2:2017 (E) 14 6.3.3 Configuration and system design data Table 6 — Configuration and system design data Name Symbol Unit Range Origin Module Varying design over-temperature
K 5.60 M3–1 Yes 6.3.4 Operating or boundary conditions Req
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