SIST EN ISO 11855-2:2021

Building environment design - Embedded radiant heating and cooling systems - Part 2: Determination of the design heating and cooling capacity (ISO 11855-2:2021)

This document specifies procedures and conditions to enable the heat flux in water-based surface heating and cooling systems to be determined relative to the medium differential temperature for systems. The determination of thermal performance of water-based surface heating and cooling systems and their conformity to this document is carried out by calculation in accordance with design documents and a model. This enables a uniform assessment and calculation of water-based surface heating and cooling systems. The surface temperature and the temperature uniformity of the heated/cooled surface, nominal heat flux between water and space, the associated nominal medium differential temperature, and the field of characteristic curves for the relationship between heat flux and the determining variables are given as the result. This document includes a general method based on finite difference or finite element Methods and simplified calculation methods depending on position of pipes and type of building structure.

Umweltgerechte Gebäudeplanung - Flächenintegrierte Strahlheizungs- und -kühlsysteme - Teil 2: Bestimmung der Auslegungs-Heiz- bzw. Kühlleistung (ISO 11855-2:2021)

Dieses Dokument legt Verfahren und Bedingungen fest, welche die Bestimmung der Wärmestromdichte von Flächenheiz  und  kühlsystemen mit Wasserdurchströmung bezüglich der Heiz  und Kühlmittel¬übertemperatur für diese Systeme ermöglichen. Die Bestimmung der Wärmeleistung von Flächenheiz  und  kühlsystemen mit Wasserdurchströmung und ihrer Übereinstimmung mit diesem Dokument wird durch Berechnung nach den Planungsdokumenten und einem Modell vorgenommen. Dies ermöglicht eine einheitliche Bewertung und Berechnung von Flächenheiz  und  kühlsystemen mit Wasserdurchströmung.
Das Ergebnis daraus sind die Oberflächentemperatur und Temperaturgleichmäßigkeit der beheizten bzw. gekühlten Oberfläche, die Nenn-Wärmestromdichte zwischen dem Wasser und dem Raum, die zugehörige Nenn-Heiz  bzw.  Kühlmittelübertemperatur und das Kennlinienfeld für die Beziehung zwischen Wärme¬stromdichte und den entscheidenden Variablen.
Dieses Dokument enthält ein allgemeines Verfahren, beruhend auf Finite-Differenzen- oder Finite-Elemente-Methoden und vereinfachten Berechnungsmethoden, abhängig von der Position der Rohre und der Art der Gebäudestruktur.

Conception de l'environnement des bâtiments - Systèmes intégrés de chauffage et de refroidissement par rayonnement - Partie 2: Détermination de la puissance calorifique et frigorifique à la conception (ISO 11855-2:2021)

Le présent document spécifie les modes opératoires et conditions permettant la détermination du flux thermique des systèmes de chauffage et de refroidissement de surface à eau en fonction de l’écart de température du medium pour les systèmes. La détermination de la performance thermique des systèmes de chauffage et de refroidissement de surface à eau et de leur conformité au présent document est effectuée par calcul d’après les documents de conception et un modèle. Cela permet une évaluation homogène et un calcul des systèmes de chauffage et de refroidissement de surface à eau.
Les résultats obtenus sont: la température de surface et l’homogénéité de la température de la surface chauffée/refroidie, le flux thermique nominal entre l’eau et le local, l’écart de température nominal du medium associé et la famille de courbes caractéristiques de la relation entre le flux thermique et les variables d’influence.
Le présent document inclut une méthode générale fondée sur les méthodes des différences finies ou des éléments finis et des méthodes de calcul simplifiées dépendant de la position des tuyaux et du type de structure du bâtiment.

Načrtovanje notranjega okolja v stavbah - Vgrajeni sevalni ogrevalni in hladilni sistemi - 2. del: Določanje načrtovane grelne in hladilne moči (ISO 11855-2:2021)

Ta dokument določa postopke in pogoje za določevanje toplotnega toka v ploskovnih sistemih za ogrevanje in hlajenje z vodo glede na temperaturo razlike medija za sisteme. Določevanje toplotne učinkovitosti ploskovnih sistemov za ogrevanje in hlajenje z vodo in njihove skladnost s tem dokumentom se izvaja z izračunom v skladu s projektno dokumentacijo in modelom. To omogoča enotno oceno in izračun ploskovnih sistemov za ogrevanje in hlajenje z vodo. Kot rezultat so podani temperatura površine in enakomernost temperature ogrevane/hlajene površine, nazivni toplotni tok med vodo in prostorom, povezana nazivna temperaturna razlika medija in področje karakterističnih krivulj za povezavo med toplotnim tokom in določanjem spremenljivk. Ta dokument vsebuje splošno metodo na podlagi končne razlike ali končnega elementa metod in poenostavljene računske metode glede na položaj cevi in vrste stavbne konstrukcije.

General Information

• Status: Published
• Public Enquiry End Date: 02-Jun-2020
• Publication Date: 17-Oct-2021
• ICS: 91.140.10 - Central heating systems
• ICS: 91.140.30 - Ventilation and air-conditioning systems
• Technical Committee: OGS - Heating for buildings
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 14-Oct-2021
• Due Date: 19-Dec-2021
• Completion Date: 18-Oct-2021
• Ref Project: EN ISO 11855-2:2021 - Building environment design - Embedded radiant heating and cooling systems - Part 2: Determination of the design heating and cooling capacity (ISO 11855-2:2021)

Relations

• Replaces: SIST EN ISO 11855-2:2015 - Building environment design - Design, dimensioning, installation and control of embedded radiant heating and cooling systems - Part 2: Determination of the design heating and cooling capacity (ISO 11855-2:2012)
• Effective Date: 08-Jun-2022
• Replaces: SIST EN ISO 11855-2:2015 - Building environment design - Design, dimensioning, installation and control of embedded radiant heating and cooling systems - Part 2: Determination of the design heating and cooling capacity (ISO 11855-2:2012)
• Effective Date: 13-Oct-2021
• Amended By: SIST EN ISO 11855-2:2021/A1:2024 - Building environment design - Embedded radiant heating and cooling systems - Part 2: Determination of the design heating and cooling capacity - Amendment 1 (ISO 11855-2:2021/Amd 1:2023)
• Effective Date: 06-Oct-2021
• Revised: SIST EN ISO 11855-2:2015 - Building environment design - Design, dimensioning, installation and control of embedded radiant heating and cooling systems - Part 2: Determination of the design heating and cooling capacity (ISO 11855-2:2012)
• Effective Date: 01-May-2020

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 11855-2:2021
01-december-2021
Nadomešča:
SIST EN ISO 11855-2:2015
Načrtovanje notranjega okolja v stavbah - Vgrajeni sevalni ogrevalni in hladilni
sistemi - 2. del: Določanje načrtovane grelne in hladilne moči (ISO 11855-2:2021)
Building environment design - Embedded radiant heating and cooling systems - Part 2:
Determination of the design heating and cooling capacity (ISO 11855-2:2021)
Umweltgerechte Gebäudeplanung - Flächenintegrierte Strahlheizungs- und -
kühlsysteme - Teil 2: Bestimmung der Auslegungs-Heiz- bzw. Kühlleistung (ISO 11855-
2:2021)
Conception de l'environnement des bâtiments - Systèmes intégrés de chauffage et de
refroidissement par rayonnement - Partie 2: Détermination de la puissance calorifique et
frigorifique à la conception (ISO 11855-2:2021)
Ta slovenski standard je istoveten z: EN ISO 11855-2:2021
ICS:
91.140.10 Sistemi centralnega Central heating systems
ogrevanja
91.140.30 Prezračevalni in klimatski Ventilation and air-
sistemi conditioning systems
SIST EN ISO 11855-2:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 11855-2:2021

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SIST EN ISO 11855-2:2021


EN ISO 11855-2
EUROPEAN STANDARD

NORME EUROPÉENNE

October 2021
EUROPÄISCHE NORM
ICS 91.040.01 Supersedes EN ISO 11855-2:2015
English Version

Building environment design - Embedded radiant heating
and cooling systems - Part 2: Determination of the design
heating and cooling capacity (ISO 11855-2:2021)
Conception de l'environnement des bâtiments - Umweltgerechte Gebäudeplanung - Flächenintegrierte
Systèmes intégrés de chauffage et de refroidissement Strahlheizungs- und -kühlsysteme - Teil 2: Bestimmung
par rayonnement - Partie 2: Détermination de la der Auslegungs-Heiz- bzw. Kühlleistung (ISO 11855-
puissance calorifique et frigorifique à la conception 2:2021)
(ISO 11855-2:2021)
This European Standard was approved by CEN on 10 September 2021.

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.

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Poland, Portugal, Republic of North Macedonia, 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: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11855-2:2021 E
worldwide for CEN national Members.

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SIST EN ISO 11855-2:2021
EN ISO 11855-2:2021 (E)
Contents Page
European foreword . 3

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SIST EN ISO 11855-2:2021
EN ISO 11855-2:2021 (E)
European foreword
This document (EN ISO 11855-2:2021) has been prepared by Technical Committee ISO/TC 205
"Building environment design" in collaboration with Technical Committee CEN/TC 228 “Heating
systems and water based cooling systems in buildings” the secretariat of which is held by DIN.
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 April 2022, and conflicting national standards shall be
withdrawn at the latest by April 2022.
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.
This document supersedes EN ISO 11855-2:2015.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards org
...