EN 12831-1:2017
(Main)Energy performance of buildings - Method for calculation of the design heat load - Part 1: Space heating load, Module M3-3
Energy performance of buildings - Method for calculation of the design heat load - Part 1: Space heating load, Module M3-3
This European Standard covers methods for the calculation of the design heat load for single rooms, building entities and buildings, where the design heat load is defined as the heat supply (power) needed to maintain the required internal design temperature under design external conditions.
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.
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Energetische Bewertung von Gebäuden - Verfahren zur Berechnung der Norm-Heizlast - Teil 1: Raumheizlast, Modul M3-3
Diese Europäische Norm umfasst Verfahren zur Berechnung der Norm-Heizlast für Einzelräume, Gebäudeeinheiten und Gebäude, wobei die Norm-Heizlast als die Wärmezufuhr (Leistung) definiert ist, die benötigt wird, um die geforderte Norm-Innentemperatur unter Norm-Außenbedingungen bereitzustellen.
Tabelle 1 zeigt die relative Position dieser Norm innerhalb des EPBD-Normenpakets im Kontext der modularen Struktur, wie in prEN ISO 52000-1 dargelegt.
ANMERKUNG 1 In prCEN 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 darf und ein Modul von mehr als einer EPB-Norm abgedeckt werden darf, zum Beispiel jeweils ein vereinfachtes und ein detailliertes Verfahren. Siehe auch Abschnitt 2 und Tabellen A.1 und B.1.
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Performance énergétique des bâtiments - Méthode de calcul de la charge thermique nominale - Partie 1 : Charge de chauffage des locaux, module M3-3
La présente Norme européenne traite des méthodes de calcul de la charge thermique nominale pour les pièces seules, les entités de bâtiment et les bâtiments, la charge thermique nominale étant définie comme l’alimentation en chaleur (puissance) nécessaire pour maintenir la température intérieure requise dans les conditions extérieures de base.
Le Tableau 1 indique la position relative de la présente norme dans l’ensemble de normes PEB dans le cadre 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, le numéro des normes PEB pertinentes et les rapports techniques associés qui sont publiés ou en cours d’élaboration.
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 également l’Article 2 et les Tableaux A.1 et B.1.
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Energijske lastnosti stavb - Metoda za izračun projektnih toplotnih obremenitev - 1. del: Toplotne obremenitve prostora - Modul M3-3
Ta standard zajema metode za izračun toplotne obremenitve oblikovanja za enoposteljne sobe, dele stavbe in stavbe, kjer je toplotna obremenitev oblikovanja določena kot dovod toplote (moč), ki je potreben za ohranjanje zahtevane notranje temperature oblikovanja pod vplivom zunanjih pogojev oblikovanja.
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2018
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SIST EN 12831:2004
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Energy performance of buildings - Method for calculation of the design heat load - Part 1:
Space heating load, Module M3-3
Energetische Bewertung von Gebäuden - Verfahren zur Berechnung der Norm-Heizlast -
Teil 1: Raumheizlast, Modul M3-3
Performance énergétique des bâtiments - Méthode de calcul de la charge thermique
nominale - Partie 1 : Charge de chauffage des locaux, module M3-3
Ta slovenski standard je istoveten z: EN 12831-1:2017
ICS:
91.120.10 Toplotna izolacija stavb Thermal insulation of
buildings
91.140.10 Sistemi centralnega Central heating systems
ogrevanja
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 12831-1
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2017
EUROPÄISCHE NORM
ICS 91.140.10 Supersedes EN 12831:2003
English Version
Energy performance of buildings - Method for calculation
of the design heat load - Part 1: Space heating load, Module
M3-3
Performance énergétique des bâtiments - Méthode de Energetische Bewertung von Gebäuden - Verfahren zur
calcul de la charge thermique nominale - Partie 1 : Berechnung der Norm-Heizlast - Teil 1: Raumheizlast,
Charge de chauffage des locaux, module M3-3 Modul M3-3
This European Standard was approved by CEN on 27 February 2017.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC 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
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of 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 United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12831-1:2017 E
worldwide for CEN national Members.
Contents Page
European foreword . 5
Introduction . 6
1 Scope . 8
2 Normative references . 12
3 Terms and definitions . 12
4 Symbols and abbreviations . 15
4.1 Symbols . 15
4.2 Subscripts . 16
5 Description of the methods . 19
6 Standard method – Heat load of rooms, building entities and buildings . 20
6.1 Output data . 20
6.2 Input data . 21
6.3 Calculation procedure . 27
6.3.1 Design heat load . 27
6.3.2 Design transmission heat losses of a heated space (i) . 29
6.3.3 Design ventilation heat loss . 33
6.3.4 Additional heating-up power in intermittently heated spaces . 41
6.3.5 Time constant . 42
6.3.6 Heat transfer coefficients without temperature adjustment . 43
6.3.7 External design temperature (climatic data) . 44
6.3.8 Influence of the heat emission system in high rooms (ceiling height ≥ 4 m) . 46
7 Simplified method for the calculation of the design heat load of a heated space (single
rooms) . 48
7.1 Output data . 48
7.2 Input data . 48
7.3 Calculation procedure . 49
7.3.1 Design heat load of a heated space . 49
7.3.2 Design transmission heat loss of a heated space . 50
7.3.3 Design ventilation heat loss of a heated space . 50
8 Simplified method for the calculation of the building design heat load . 51
8.1 Output data . 51
8.2 Input data . 51
8.3 Calculation procedure . 52
8.3.1 Building design heat load . 52
8.3.2 Building design transmission heat loss. 53
8.3.3 Design ventilation heat loss of a building . 53
9 Compliance check. 54
9.1 General . 54
9.2 Dimensioning of heat emission systems . 54
9.3 Dimensioning of heat generators . 54
Annex A (normative) Input data, structure for default values . 55
A.1 General . 55
A.2 Input data for the standard method (6) . 55
A.2.1 Consideration of thermal bridges . 55
A.2.2 Correction of U-values for the influence of building element properties and
meteorological conditions . 55
A.2.3 Heat loss through the ground . 55
A.2.4 Temperature adjustment for heat loss to unheated spaces . 56
A.2.5 Internal temperatures of adjacent building entities . 56
A.2.6 Influence of the heat emission system in high rooms . 56
A.2.7 Specific thermal storage capacity c . 57
eff
A.2.8 Specific properties of air . 57
A.2.9 Volume flow ratio between room (i) and zone (z) . 58
A.2.10 Air tightness . 58
A.2.11 Minimum air change rate . 58
A.2.12 Coefficient for the volume flow ratio f . 59
qv,z
A.2.13 Estimation of design data of external ATDs. 59
A.2.14 Pressure exponent for leakages . 59
A.2.15 Adjustment factor for the orientation of the zone (orientation factor) . 59
A.2.16 Adjustment factor for the number of exposed facades . 60
A.2.17 Air volume flow through large openings . 60
A.2.18 Additional heating-up power in intermittently heated spaces ϕ . 60
hu
A.2.19 Heat gains Φ . 60
gain
A.3 Input data for the simplified methods (7, 8) . 60
A.3.1 Ratio between external and internal surface areas . 60
A.3.2 Thermal bridges . 61
A.3.3 Temperature correction factor f . 61
x
A.3.4 Air change rate . 61
A.4 Input data for the standard method and the simplified methods . 61
A.4.1 Climatic data . 61
A.4.2 Internal design temperature . 64
A.4.3 Simplified determination of U-Values . 64
Annex B (informative) Input data, default values . 65
B.1 General . 65
B.2 Input data for the standard method (6) . 65
B.2.1 Consideration of thermal bridges . 65
B.2.2 Correction of U-values for the influence of building element properties and
meteorological conditions . 65
B.2.3 Heat loss through the ground .
...
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