EN ISO 13792:2012

Thermal performance of buildings - Calculation of internal temperatures of a room in summer without mechanical cooling - Simplified methods (ISO 13792:2012)

ISO 13792:2011 specifies the required input data for simplified calculation methods for determining the maximum, average and minimum daily values of the operative temperature of a room in warm periods:
a) to define the characteristics of a room at the design stage in order to avoid overheating in summer;
b) to define whether the installation of a cooling system is necessary or not.

Wärmetechnisches Verhalten von Gebäuden - Berechnung von sommerlichen Raumtemperaturen bei Gebäuden ohne Anlagentechnik - Vereinfachtes Berechnungsverfahren (ISO 13792:2012)

Dieses Dokument legt die Eingabedaten fest, die für vereinfachte Berechnungsverfahren zur Bestimmung der täglichen Höchst , Mittel  und Mindestwerte der operativen Temperatur eines Raumes in der warmen Jahreszeit für Folgendes erforderlich sind:
a)   Definition der Kenngrößen eines Raumes im Entwurfsstadium, um eine Überhitzung im Sommer zu vermeiden;
b)   Festlegung, ob der Einbau einer Kühlanlage erforderlich ist oder nicht.
In Abschnitt 6 sind die Kriterien angegeben, die ein Berechnungsverfahren erfüllen muss, um dem vorliegenden Dokument zu entsprechen.

Performance thermique des bâtiments - Calcul des températures intérieures en été d'un local sans dispositif de refroidissement mécanique - Méthodes simplifiées (ISO 13792:2012)

L'ISO 13792:2012 définit les données d'entrée requises pour les méthodes de calcul simplifiées permettant de déterminer les valeurs journalières maximales, moyennes et minimales de la température opérative d'un local pendant les périodes chaudes, dans le but de:
a) définir les caractéristiques d'un local au stade de projet afin d'éviter un échauffement excessif en été;
b) définir si l'installation d'un système de refroidissement est nécessaire ou non.

Toplotne značilnosti stavb - Izračun notranje temperature prostorov poleti brez mehanskega hlajenja - Poenostavljena metoda (ISO 13792:2012)

Ta mednarodni standard določa potrebne vhodne podatke za poenostavljene metode izračuna za določanje največjih, povprečnih in najmanjših dnevnih vrednosti delovnih temperatur prostorov v toplih obdobjih: a) za določanje značilnosti prostora v času načrtovanja, da se prepreči čezmerno segrevanje poleti; b) za določanje, ali je namestitev sistema hlajenja potrebna ali ne. Točka 6 določa merila, ki jih mora izpolnjevati metoda izračuna, da je skladna s tem mednarodnim standardom.

General Information

• Status: Withdrawn
• Publication Date: 14-Mar-2012
• Withdrawal Date: 18-Jul-2017
• ICS: 91.120.10 - Thermal insulation of buildings
• Technical Committee: CEN/TC 89 - Thermal performance of buildings and building components
• Drafting Committee: CEN/TC 89/WG 6 - Calculation of non steady state thermal behaviour of buildings
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Completion Date: 19-Jul-2017
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Ref Project: SIST EN ISO 13792:2012 - Thermal performance of buildings - Calculation of internal temperatures of a room in summer without mechanical cooling - Simplified methods (ISO 13792:2012)

Relations

• Replaces: EN ISO 13792:2005 - Thermal performance of buildings - Calculation of internal temperatures of a room in summer without mechanical cooling - Simplified methods (ISO 13792:2005)
• Effective Date: 28-Mar-2012
• Replaced By: EN ISO 52016-1:2017 - Energy performance of buildings - Energy needs for heating and cooling, internal temperatures and sensible and latent heat loads - Part 1: Calculation procedures (ISO 52016-1:2017)
• Effective Date: 08-Jun-2022
• Replaced By: EN ISO 52017-1:2017 - Energy performance of buildings - Sensible and latent heat loads and internal temperatures - Part 1: Generic calculation procedures (ISO 52017-1:2017)
• Effective Date: 08-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2012
1DGRPHãþD
SIST EN ISO 13792:2005
7RSORWQH]QDþLOQRVWLVWDYE,]UDþXQQRWUDQMHWHPSHUDWXUHSURVWRURYSROHWLEUH]
PHKDQVNHJDKODMHQMD3RHQRVWDYOMHQDPHWRGD,62
Thermal performance of buildings - Calculation of internal temperatures of a room in
summer without mechanical cooling - Simplified methods (ISO 13792:2012)
Wärmetechnisches Verhalten von Gebäuden - Berechnung von sommerlichen
Raumtemperaturen bei Gebäuden ohne Anlagentechnik - Vereinfachtes
Berechnungsverfahren (ISO 13792:2012)
Performance thermique des bâtiments - Calcul des températures intérieures en été d'un
local sans dispositif de refroidissement mécanique - Méthodes simplifiées (ISO
13792:2012)
Ta slovenski standard je istoveten z: EN ISO 13792:2012
ICS:
91.120.10 Toplotna izolacija stavb Thermal insulation
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 13792
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2012
ICS 91.120.10 Supersedes EN ISO 13792:2005
English Version
Thermal performance of buildings - Calculation of internal
temperatures of a room in summer without mechanical cooling -
Simplified methods (ISO 13792:2012)
Performance thermique des bâtiments - Calcul des Wärmetechnisches Verhalten von Gebäuden - Berechnung
températures intérieures en été d'un local sans dispositif de von sommerlichen Raumtemperaturen bei Gebäuden ohne
refroidissement mécanique - Méthodes simplifiées (ISO Anlagentechnik - Vereinfachtes Berechnungsverfahren
13792:2012) (ISO 13792:2012)
This European Standard was approved by CEN on 14 March 2012.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13792:2012: E
worldwide for CEN national Members.

Contents Page
Foreword .3

Foreword
This document (EN ISO 13792:2012) has been prepared by Technical Committee ISO/TC 163 "Thermal
performance and energy use in the built environment" in collaboration with Technical Committee CEN/TC 89
“Thermal performance of buildings and building components” the secretariat of which is held by SIS.
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 September 2012, and conflicting national standards shall be
withdrawn at the latest by September 2012.
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 supersedes EN ISO 13792:2005.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 13792:2012 has been approved by CEN as a EN ISO 13792:2012 without any modification.
INTERNATIONAL ISO
STANDARD 13792
Second edition
2012-03-15
Thermal performance of buildings —
Calculation of internal temperatures of
a room in summer without mechanical
cooling — Simplified methods
Performance thermique des bâtiments — Calcul des températures
intérieures en été d'un local sans dispositif de refroidissement
mécanique — Méthodes simplifiées

Reference number
ISO 13792:2012(E)
©
ISO 2012
ISO 13792:2012(E)
©  ISO 2012
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56  CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland
ii © ISO 2012 – All rights reserved

ISO 13792:2012(E)
Contents Page
Foreword . iv
Introduction . vi
1  Scope . 1
2  Normative references . 1
3  Terms, definitions, symbols and units . 2
3.1  Terms and definitions . 2
3.2  Symbols and units . 2
3.3  Subscripts . 5
4  Input data and results . 6
4.1  Assumptions . 6
4.2  Boundary conditions and input data . 6
4.2.1  Boundary conditions . 6
4.2.2  Heat transfer coefficients . 7
4.2.3  Geometrical and thermophysical parameters of the room envelope . 7
4.2.4  Air change rate . 10
4.2.5  Internal gain . 11
4.3  Output data . 11
5  Calculation procedure . 11
6  Validation procedures . 12
6.1  Introduction . 12
6.2  Validation procedure for the calculation method . 12
6.2.1  General . 12
6.2.2  Geometry . 12
6.2.3  Description of elements . 13
6.2.4  Combination of elements . 14
6.2.5  Climatic data . 15
6.2.6  Internal energy sources . 16
6.2.7  Ventilation pattern . 17
6.2.8  Test results . 17
6.3  Validation procedure for the sunlit factor due to external obstructions . 18
Annex A (informative) Examples of solution model . 21
Annex B (informative) Air changes for natural ventilation . 37
Annex C (informative) Evaluation of shaded area of a plane surface due to external obstructions . 39
Annex D (informative) Internal gains . 42
Annex E (informative) Examples of calculation . 44
Annex F (informative) Normative references to international publications with their corresponding
European publications . 53

ISO 13792:2012(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 13792 was prepared by Technical Committee ISO/TC 163, Thermal performance and energy use in the
built environment, Subcommittee SC 2, Calculation methods.
This second edition cancels and replaces the first edition (ISO 13792:2005), which has been technically
revised. The main changes compared to the previous edition are given in the following table.
iv © ISO 2012 – All rights reserved

ISO 13792:2012(E)
Clause/subclause Changes
2 Added ISO 9050, ISO 10292, and ISO 15927-2
3.2 and 3.3 Deleted g and m
Added subscript sl
4.2.1.2 Added first and second list items, descriptions of the reference
4.2.3 Replaced U* by U
Replaced g by S as the solar heat gain factor
f
Deleted Equation (1) and replaced old Equations (2) to (6) by Equations (1)
to (5)
Amended Equations (2) to (4)
4.2.3.2 Third list item, replaced g by S
f1
6.2.5 Added the descriptions of the latitudes in Tables 7, 8 and 9
A.2.1 Amended the descriptions of symbols S and n
f
A.2.2 Amended Equation (A.1)
A.2.3 Added the equation to define A
t
Amended Equation (A.24)
A.3.1 Amended Equations (A.28), (A.31), (A.32), (A.33) and (A.34)
A.3.2.1 Amended Equation (A.35)
Amended the unit for c
A.3.2.2.1 Amended Equations (A.38), (A.39), (A.40), (A.45) and (A.47)
Changed the description of H
T
A.3.2.2.2 Amended Equation (A.49)
A.3.2.3 Amended Equation (A.52)
A.3.3 Amended Equation (A.53)
C.2 Added a title to Table C.1
E.1 Amended the description of S in
...