EN ISO 15927-2:2009
(Main)Hygrothermal performance of buildings - Calculation and presentation of climatic data - Part 2: Hourly data for design cooling load (ISO 15927-2:2009)
Hygrothermal performance of buildings - Calculation and presentation of climatic data - Part 2: Hourly data for design cooling load (ISO 15927-2:2009)
ISO 15927-2:2009 gives the definition, and specifies methods of calculation and presentation of the monthly external design climate to be used in determining the design cooling load of buildings and the design of air conditioning systems.
Wärme- und feuchteschutztechnisches Verhalten von Gebäuden - Berechnung und Darstellung von Klimadaten - Teil 2: Stundendaten zur Bestimmung der Kühllast (ISO 15927-2:2009)
Dieser Teil der ISO 15927 legt die Definitionen und das Berechnungsverfahren sowie die Darstellung von
monatlichen externen Klimadaten fest, die zur Bestimmung der Bemessungskühllast in Gebäuden und zur
Bemessung von Klimaanlagen zu verwenden sind.
In Abhängigkeit vom Gebäudetyp kann eine Reihe von Parametern angewendet werden, um in jedem
Kalendermonat die einzelnen Tage in Stunden- oder Drei-Stunden-Daten festzulegen, die an voraussichtlich
5 %, 2 % und 1 % der Tage höhere Kühllasten verursachen.
Die Trockentemperatur und die gesamte globale Sonneneinstrahlung (oder Sonnenstunden) müssen immer
als Parameter ausgewählt sein. Die tägliche Schwankung der Trockentemperatur, die Taupunkttemperatur,
die Windgeschwindigkeit und andere gebäudespezifische Parameter können ebenfalls enthalten sein.
Stündliche Höchstwerte der Trocken- und Taupunkttemperatur werden für die Bemessung von Klimaanlagen
benötigt.
Performance hygrothermique des bâtiments - Calcul et présentation des données climatiques - Partie 2: Données horaires pour le dimensionnement de la charge de refroidissement (ISO 15927-2:2009)
L'ISO 15927-2:2009 donne la définition et spécifie les méthodes de calcul et de présentation du climat mensuel extérieur type nécessaire à la détermination de la charge nominale de refroidissement et au dimensionnement des systèmes d'air conditionné.
Higrotermalne značilnosti stavb - Izračun in predstavitev podnebnih podatkov - 2. del: Urni podatki za določanje hladilnih obremenitev (ISO 15927-2:2009)
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2009
+LJURWHUPDOQHNDUDNWHULVWLNHVWDYE5DþXQDQMHLQSUHGVWDYLWHYNOLPDWVNLK
SRGDWNRYGHO 8UQLSRGDWNL]DGRORþDQMHKODGLOQLKREUHPHQLWHY ,62
Hygrothermal performance of buildings - Calculation and presentation of climatic data -
Part 2: Hourly data for design cooling load (ISO 15927-2:2009)
Wärme- und feuchteschutztechnisches Verhalten von Gebäuden - Berechnung und
Darstellung von Klimadaten - Teil 2: Stundendaten zur Bestimmung der Kühllast (ISO
15927-2:2009)
Performance hygrothermique des bâtiments - Calcul et présentation des données
climatiques - Partie 2: Données horaires pour la charge de refroidissement de
conception (ISO 15927-2:2009)
Ta slovenski standard je istoveten z: EN ISO 15927-2:2009
ICS:
07.060 Geologija. Meteorologija. Geology. Meteorology.
Hidrologija Hydrology
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 15927-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2009
ICS 07.060; 91.120.10
English Version
Hygrothermal performance of buildings - Calculation and
presentation of climatic data - Part 2: Hourly data for design
cooling load (ISO 15927-2:2009)
Performance hygrothermique des bâtiments - Calcul et Wärme- und feuchteschutztechnisches Verhalten von
présentation des données climatiques - Partie 2: Données Gebäuden - Berechnung und Darstellung von Klimadaten -
horaires pour la charge de refroidissement de conception Teil 2: Stundendaten zur Bestimmung der Kühllast (ISO
(ISO 15927-2:2009) 15927-2:2009)
This European Standard was approved by CEN on 17 January 2009.
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 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 Management Centre has the same status as the
official 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 STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15927-2:2009: E
worldwide for CEN national Members.
Contents Page
Foreword .3
Foreword
This document (EN ISO 15927-2:2009) has been prepared by Technical Committee CEN/TC 89 “Thermal
performance of buildings and building components", the secretariat of which is held by SIS, in collaboration
with Technical Committee ISO/TC 163 "Thermal performance and energy use in the built environment".
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 August 2009, and conflicting national standards shall be withdrawn at
the latest by August 2009.
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.
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 the United Kingdom.
INTERNATIONAL ISO
STANDARD 15927-2
First edition
2009-02-15
Hygrothermal performance of
buildings — Calculation and presentation
of climatic data —
Part 2:
Hourly data for design cooling load
Performance hygrothermique des bâtiments — Calcul et présentation
des données climatiques —
Partie 2: Données horaires pour la charge de refroidissement de
conception
Reference number
ISO 15927-2:2009(E)
©
ISO 2009
ISO 15927-2:2009(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
© ISO 2009
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 copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2009 – All rights reserved
ISO 15927-2:2009(E)
Contents Page
Foreword .iv
Introduction.v
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.3
4 Method of determination.3
4.1 Sources of data.3
4.2 Identification of the design days .3
5 Data for the design of air conditioning systems.5
6 Presentation of the design days .6
7 Presentation of the data for the design of air conditioning systems .6
Annex A (informative) Example of the procedure for identifying a design day .7
ISO 15927-2:2009(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 15927-2 was prepared by the European Committee for Standardization (CEN) Technical Committee
CEN/TC 89, Thermal performance of buildings and building components, in collaboration with Technical
Committee ISO/TC 163, Thermal performance and energy use in the built environment, Subcommittee SC 2,
Calculation methods, in accordance with the Agreement on technical cooperation between ISO and CEN
(Vienna Agreement).
ISO 15927 consists of the following parts, under the general title Hygrothermal performance of buildings —
Calculation and presentation of climatic data:
⎯ Part 1: Monthly means of single meteorological elements
⎯ Part 2: Hourly data for design cooling load
⎯ Part 3: Calculation of a driving rain index for vertical surfaces from hourly wind and rain data
⎯ Part 4: Hourly data for assessing the annual energy use for heating and cooling
⎯ Part 5: Data for design heat load for space heating
⎯ Part 6: Accumulated temperature differences (degree-days)
iv © ISO 2009 – All rights reserved
ISO 15927-2:2009(E)
Introduction
The choice of design load for space cooling is a matter of balancing user needs against cost. On the one hand,
users expect a cooling system to maintain the internal temperatures needed for health and comfort; on the
other hand, very high cooling loads can arise from extreme meteorological conditions. It is usually uneconomic
to design cooling systems for rare extremes, as this leads to high capital cost and, usually, to lower
operational efficiency of the system. The highest cooling loads occur with a combination of high daily mean
dry-bulb temperature and dewpoint temperature, high daily total irradiation, low daily swing in temperature and
low wind speed. Data are therefore needed on the values of these parameters when they occur in
combination at specific return periods.
INTERNATIONAL STANDARD ISO 15927-2:2009(E)
Hygrothermal performance of buildings — Calculation and
presentation of climatic data —
Part 2:
Hourly data for design cooling load
1 Scope
This part of ISO 15927 gives the definition and specifies methods of calculation and presentation of the
monthly external design climate to be used in determining the design cooling load of buildings and the design
of air conditioning systems.
Depending on the building type, a range of parameters can be used to define the individual days of hourly or
three-hourly data in each calendar month that impose a cooling load likely to be exceeded on 5 %, 2 % and
1 % of days.
The parameters that are always used in the selection are dry-bulb temperature and total global solar
irradiation (or sunshine hours). The daily swing in dry-bulb temperature, dewpoint temperature and wind
speed and any other parameters relevant to particular buildings may also be included.
Hourly peak values of dry-bulb temperature and dewpoint temperature are needed for the design of air
conditioning systems.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 15927-1, Hygrothermal performance of buildings — Calculation and presentation of climatic data —
Part 1: Monthly means of single meteorological elements
World Meteorological Organization (WMO), Guide to Meteorological Instruments and Methods of Observation,
1)
No. 8, 6th Edition, 1996
1) World Meteorological Organization: http://www.wmo.ch/pages/catalogue/New%20HTML/frame/engfil/8.html.
ISO 15927-2:2009(E)
3 Terms, definitions, symbols and units
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 15927-1 and the following apply.
3.1.1
hourly value
average of instantaneou
...
SLOVENSKI STANDARD
01-junij-2009
Higrotermalne značilnosti stavb - Izračun in predstavitev podnebnih podatkov - 2.
del: Urni podatki za določanje hladilnih obremenitev (ISO 15927-2:2009)
Hygrothermal performance of buildings - Calculation and presentation of climatic data -
Part 2: Hourly data for design cooling load (ISO 15927-2:2009)
Wärme- und feuchteschutztechnisches Verhalten von Gebäuden - Berechnung und
Darstellung von Klimadaten - Teil 2: Stundendaten zur Bestimmung der Kühllast (ISO
15927-2:2009)
Performance hygrothermique des bâtiments - Calcul et présentation des données
climatiques - Partie 2: Données horaires pour la charge de refroidissement de
conception (ISO 15927-2:2009)
Ta slovenski standard je istoveten z: EN ISO 15927-2:2009
ICS:
07.060 Geologija. Meteorologija. Geology. Meteorology.
Hidrologija Hydrology
91.120.10 Toplotna izolacija stavb Thermal insulation of
buildings
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN ISO 15927-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2009
ICS 07.060; 91.120.10
English Version
Hygrothermal performance of buildings - Calculation and
presentation of climatic data - Part 2: Hourly data for design
cooling load (ISO 15927-2:2009)
Performance hygrothermique des bâtiments - Calcul et Wärme- und feuchteschutztechnisches Verhalten von
présentation des données climatiques - Partie 2: Données Gebäuden - Berechnung und Darstellung von Klimadaten -
horaires pour la charge de refroidissement de conception Teil 2: Stundendaten zur Bestimmung der Kühllast (ISO
(ISO 15927-2:2009) 15927-2:2009)
This European Standard was approved by CEN on 17 January 2009.
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 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 Management Centre has the same status as the
official 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 STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15927-2:2009: E
worldwide for CEN national Members.
Contents Page
Foreword .3
Foreword
This document (EN ISO 15927-2:2009) has been prepared by Technical Committee CEN/TC 89 “Thermal
performance of buildings and building components", the secretariat of which is held by SIS, in collaboration
with Technical Committee ISO/TC 163 "Thermal performance and energy use in the built environment".
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 August 2009, and conflicting national standards shall be withdrawn at
the latest by August 2009.
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.
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 the United Kingdom.
INTERNATIONAL ISO
STANDARD 15927-2
First edition
2009-02-15
Hygrothermal performance of
buildings — Calculation and presentation
of climatic data —
Part 2:
Hourly data for design cooling load
Performance hygrothermique des bâtiments — Calcul et présentation
des données climatiques —
Partie 2: Données horaires pour la charge de refroidissement de
conception
Reference number
ISO 15927-2:2009(E)
©
ISO 2009
ISO 15927-2:2009(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
© ISO 2009
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 copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2009 – All rights reserved
ISO 15927-2:2009(E)
Contents Page
Foreword .iv
Introduction.v
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.3
4 Method of determination.3
4.1 Sources of data.3
4.2 Identification of the design days .3
5 Data for the design of air conditioning systems.5
6 Presentation of the design days .6
7 Presentation of the data for the design of air conditioning systems .6
Annex A (informative) Example of the procedure for identifying a design day .7
ISO 15927-2:2009(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 15927-2 was prepared by the European Committee for Standardization (CEN) Technical Committee
CEN/TC 89, Thermal performance of buildings and building components, in collaboration with Technical
Committee ISO/TC 163, Thermal performance and energy use in the built environment, Subcommittee SC 2,
Calculation methods, in accordance with the Agreement on technical cooperation between ISO and CEN
(Vienna Agreement).
ISO 15927 consists of the following parts, under the general title Hygrothermal performance of buildings —
Calculation and presentation of climatic data:
⎯ Part 1: Monthly means of single meteorological elements
⎯ Part 2: Hourly data for design cooling load
⎯ Part 3: Calculation of a driving rain index for vertical surfaces from hourly wind and rain data
⎯ Part 4: Hourly data for assessing the annual energy use for heating and cooling
⎯ Part 5: Data for design heat load for space heating
⎯ Part 6: Accumulated temperature differences (degree-days)
iv © ISO 2009 – All rights reserved
ISO 15927-2:2009(E)
Introduction
The choice of design load for space cooling is a matter of balancing user needs against cost. On the one hand,
users expect a cooling system to maintain the internal temperatures needed for health and comfort; on the
other hand, very high cooling loads can arise from extreme meteorological conditions. It is usually uneconomic
to design cooling systems for rare extremes, as this leads to high capital cost and, usually, to lower
operational efficiency of the system. The highest cooling loads occur with a combination of high daily mean
dry-bulb temperature and dewpoint temperature, high daily total irradiation, low daily swing in temperature and
low wind speed. Data are therefore needed on the values of these parameters when they occur in
combination at specific return periods.
INTERNATIONAL STANDARD ISO 15927-2:2009(E)
Hygrothermal performance of buildings — Calculation and
presentation of climatic data —
Part 2:
Hourly data for design cooling load
1 Scope
This part of ISO 15927 gives the definition and specifies methods of calculation and presentation of the
monthly external design climate to be used in determining the design cooling load of buildings and the design
of air conditioning systems.
Depending on the building type, a range of parameters can be used to define the individual days of hourly or
three-hourly data in each calendar month that impose a cooling load likely to be exceeded on 5 %, 2 % and
1 % of days.
The parameters that are always used in the selection are dry-bulb temperature and total global solar
irradiation (or sunshine hours). The daily swing in dry-bulb temperature, dewpoint temperature and wind
speed and any other parameters relevant to particular buildings may also be included.
Hourly peak values of dry-bulb temperature and dewpoint temperature are needed for the design of air
conditioning systems.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 15927-1, Hygrothermal performance of buildings — Calculation and presentation of climatic data —
Part 1: Monthly means of single meteorological elements
World Meteorological Organization (WMO), Guide to Meteorological Instruments and Methods of Observation,
1)
No. 8, 6th Edition, 1996
1) World Meteorological Organization: http://www.wmo.ch/pages/catalogue/New%20HTML/frame/engfil/8.html.
ISO 15927-2:2009(E)
3 Terms, definitions, symbols and units
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 15927-1 and the following apply.
3.1.1
hourly value
average of instantaneous values of a par
...
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