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SIST EN ISO 15927-2:2009
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
SIST EN ISO 15927-2:2009 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 15927-2:2009
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SIST EN ISO 15927-2:2009
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.
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SIST EN ISO 15927-2:2009
EN ISO 15927-2:2009 (E)
Contents Page
Foreword .3
2
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SIST EN ISO 15927-2:2009
EN ISO 15927-2:2009 (E)
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.
3
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SIST EN ISO 15927-2:2009
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SIST EN ISO 15927-2:2009
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
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SIST EN ISO 15927-2:2009
ISO 15927-2:2009(E)
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ii © ISO 2009 – All rights reserved
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SIST EN ISO 15927-2:2009
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 2009 – All rights reserved iii
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SIST EN ISO 15927-2:2009
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
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SIST EN ISO 15927-2:2009
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.
© ISO 2009 – All rights reserved v
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SIST EN ISO 15927-2:2009
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SIST EN ISO 15927-2:2009
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 exceed
...