EN 15116:2008
(Main)Ventilation in buildings - Chilled beams - Testing and rating of active chilled beams
Ventilation in buildings - Chilled beams - Testing and rating of active chilled beams
This European Standard specifies methods for measuring the cooling capacity of chilled beams with forced air flow. The evaluation of aerodynamic air performance should be based on the requirements of WI 00156113 and the requirements set out in this standard.
The purpose of the standard is to give comparable and repeatable product data.
The test method applies to all types of convector cooling systems with forced air supply using any medium as energy transport medium. This standard only applies to situations where induced air only passes through the heat exchanger (primary air does not pass through the heat exchanger).
NOTE The result is valid only for the specified test set up. For other conditions, (i.e. different positions of heat loads, inactive ceiling elements around the test objects), the producer should give guidance based on full scale tests.
This standard refers to water as the main cooling medium, with the possibility of additional cooling from the primary air. Wherever water is written, any other cooling medium can also be used in the test.
Lüftung von Gebäuden - Kühlbalken - Prüfung und Bewertung von aktiven Kühlbalken
Diese Europäische Norm legt Verfahren zur Messung der Kühlleistung von Kühlbalken mit Zwangsbelüftung fest. Die Beurteilung der aerodynamischen Luftleistung ist nicht Bestandteil dieser Norm. Die Beurteilung der aerodynamischen Luftleistung wird in der Zukunft in einer neuen Norm mit dem Titel "Lüftung von Gebäuden — Luftdurchlässe — Strömungstechnische Prüfung und Bewertung von Mischlüftungs¬anwendungen im anisothermen Betrieb — Teil 1: Kaltluftstrahlen" behandelt.
Zweck dieser Norm ist es, vergleichbare und reproduzierbare Produktkennwerte zur Verfügung zu stellen.
Das Prüfverfahren gilt für sämtliche Bauarten von konvektiven Kühlsystemen mit Zwangsbelüftung unter Verwendung eines beliebigen Mediums als Medium für den Energietransport. Diese Norm gilt nur dann, wenn lediglich die induzierte Luft durch den Wärmeübertrager strömt (die Primärluft strömt nicht durch den Wärmeübertrager).
ANMERKUNG Das Ergebnis gilt nur für den festgelegten Prüfaufbau. Bei anderen Bedingungen (d. h. bei einer anderen Anordnung der Wärmelasten, inaktiven Deckenelementen in der Umgebung der Prüfgegenstände) sollte der Hersteller Richtlinien auf Grundlage von maßstabsgetreuen Prüfungen zur Verfügung stellen.
Diese Norm bezieht sich auf Wasser als hauptsächliches Kühlmedium, mit der Möglichkeit einer zusätzlichen Kühlung durch die Primärluft. Bei Prüfungen, für die Wasser als Kühlmedium genannt ist, kann auch jedes andere Kühlmedium verwendet werden.
Ventilation des bâtiments - Poutres froides - Essai et évaluation des poutres froides actives
La présente Norme européenne spécifie les méthodes de mesure de la puissance frigorifique des poutres froides à ventilation forcée. L'évaluation de la performance aérodynamique de l'air ne fait pas partie de la présente norme. Ceci fera l'objet d'une future norme intitulée "Unités terminales - Essais aérodynamiques et étalonnage pour applications de fluides mixtes pour les essais non-isothermes - Jets froids".
La norme vise à attribuer aux produits des données comparables et répétables.
La méthode d’essai s’applique à tous les types de systèmes de refroidissement convectif à ventilation forcée quel que soit le milieu utilisé pour véhiculer l’énergie. La présente norme ne s'applique qu'aux situations où l'air induit ne passe que par l'échangeur de chaleur (l'air primaire ne passe pas par l'échangeur de chaleur).
NOTE Le résultat n’est valable que pour l’installation d’essai spécifiée. Pour d’autres conditions (c’est-à-dire positions différentes des sources de chaleur, éléments de plafond inactifs autour des dispositifs soumis à l’essai), il y a lieu pour le fournisseur de donner des indications basées sur des essais en vraie grandeur.
Dans l’ensemble de la présente norme le fluide froid de référence est l’eau, avec la possibilité d'un refroidissement complémentaire par l'air primaire. Toutefois, chaque fois qu’il est question d’eau, tout autre fluide de refroidissement est également utilisable pour l’essai.
Prezračevanje stavb - Hladilne grede - Preskušanje in razvrstitev aktivnih hladilnih gred
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2008
3UH]UDþHYDQMHVWDYE+ODGLOQHJUHGH3UHVNXãDQMHLQUD]YUVWLWHYDNWLYQLKKODGLOQLK
JUHG
Ventilation in buildings - Chilled beams - Testing and rating of active chilled beams
Lüftung von Gebäuden - Kühlbalken - Prüfung und Bewertung von aktiven Kühlbalken
Ventilation des bâtiments - Poutres froides - Essai et évaluation des poutres froides
actives
Ta slovenski standard je istoveten z: EN 15116:2008
ICS:
91.140.30 3UH]UDþHYDOQLLQNOLPDWVNL Ventilation and air-
VLVWHPL conditioning
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 15116
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2008
ICS 91.140.30
English Version
Ventilation in buildings - Chilled beams - Testing and rating of
active chilled beams
Ventilation des bâtiments - Poutres froides - Essai et Lüftung von Gebäuden - Kühlbalken - Prüfung und
évaluation des poutres froides actives Berechnung von aktiven Kühlbalken
This European Standard was approved by CEN on 28 February 2008.
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: rue de Stassart, 36 B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 15116:2008: E
worldwide for CEN national Members.
Contents Page
Foreword .3
1 Scope.4
2 Normative references.4
3 Terms, definitions and symbols.4
3.1 Terms and definitions .4
3.2 Symbols and units.7
4 Test method.9
4.1 Principle.9
4.1.1 General.9
4.1.2 The internal heat supply method .9
4.1.3 The external heat supply method .9
4.2 Test room.9
4.3 Instrumentation.10
4.3.1 The internal heat supply method .10
4.3.2 The external heat supply method .10
4.3.3 Other instrumentation.10
4.4 Test procedure.11
4.4.1 Test set up.11
4.4.2 Steady state condition.11
4.4.3 Measurements.12
4.4.4 Expression of results.13
5 Uncertainty.14
6 Test report.14
Bibliography.20
Foreword
This document (EN 15116:2008) has been prepared by Technical Committee CEN/TC 156 “Ventilation
for buildings”, the secretariat of which is held by BSI.
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 October 2008, and conflicting national standards shall be
withdrawn at the latest by October 2008.
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.
1 Scope
This European Standard specifies methods for measuring the cooling capacity of chilled beams with
forced air flow. The evaluation of aerodynamic air performance is not part of this standard. It will be dealt
with in the future in a new standard entitled "Air terminal devices - Aerodynamic testing and rating for
mixed flow applications for non isothermal testing - Cold jets".
The purpose of the standard is to give comparable and repeatable product data.
The test method applies to all types of convector cooling systems with forced air supply using any
medium as energy transport medium. This standard only applies to situations where induced air only
passes through the heat exchanger (primary air does not pass through the heat exchanger).
NOTE The result is valid only for the specified test set up. For other conditions, (i.e. different positions of heat
loads, inactive ceiling elements around the test objects), the producer should give guidance based on full scale tests.
This standard refers to water as the main cooling medium, with the possibility of additional cooling from
the primary air. Wherever water is written, any other cooling medium can also be used in the test.
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.
EN 12792:2003, Ventilation for buildings - Symbols, terminology and graphical symbols
EN 14240:2004, Ventilation for buildings — Chilled ceilings — Testing and rating
EN ISO 5167-1, Measurement of fluid flow by means of pressure differential devices inserted in circular
cross-section conduits running full – Part 1: General principles and requirements (ISO 5167-1:2003)
EN ISO 7726, Ergonomics of the thermal environment - Instruments for measuring physical quantities (ISO
7726:1998)
ISO 5221, Air distribution and air diffusion - Rules to methods of measuring air flow rate in an air handling
duct
3 Terms, definitions and symbols
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 12792:2003 and the following apply.
3.1.1
active chilled beam
convector with integrated air supply where the induced air only passes through the cooling coil(s). The
cooling medium in the coil is water
NOTE For the purpose of this standard primary air does not pass through the cooling coil.
3.1.2
test room
room in which the test object is mounted
3.1.3
primary air flow rate (q )
p
airflow supplied to the test object through a duct from outside of the test room or with primary air fan and
ducting inside the test room
3.1.4
induced air flow rate (q )
i
secondary airflow from the test room induced into the test object by the primary air
3.1.5
exhaust air flow rate (q )
e
airflow discharged from the test room or return air if the primary air fan is located in the test room. The
exhaust air flow rate is the same as the primary air flow rate
3.1.6
primary air pressure drop (∆p )
a
pressure drop across induction nozzle plus discharge loss
3.1.7
cooling water flow rate (q )
w
the average of the measured water flow rates during the test period
3.1.8
nominal cooling water flow rate (q )
wN
flow rate that gives a cooling water temperature rise (θ − θ ) of 2 K ± 0,2 K at nominal temperature
w2 w1
difference (∆θ = 8 K) and at nominal air flow rate
N
3.1.9
water side pressure drop (∆p )
w
internal pressure drop across coil plus beam internal pipes
3.1.10
room air temperature (θθθθ )
a
average of air temperatures measured with radiation shielded sensors in 1,1 m height in positions out of
the main air current from the test object
3.1.11
globe temperature (θθθθ )
g
temperature measured with a temperature sensor placed in the centre of the globe. The globe is placed in
1,1 m height in a position out of the main air current from the test object
3.1.12
reference air temperature (θθ )
θθ
r
reference air temperature equals average air temperature of the induced air on the inlet side of the
cooling coil(s), measured with radiation shielded sensors in three positions in the induced air opening, two
centrally at the quarter points and one at the central point of the opening
3.1.13
cooling water inlet temperature (θθθθ )
w1
average of the measured water temperature into the test object during the test period
3.1.14
cooling water outlet temperature (θθθθ )
w2
average of the measured water temperature out of the test object during the test period
3.1.15
mean cooling water temperature (θθθθ )
w
mean value of the cooling water inlet and outlet temperatures, [θ =0,5·(θ + θ )]
w w1 w2
3.1.16
primary air temperature (θθ )
θθ
p
average of the primary air temperature during the test period
3.1.17
temperature difference (∆∆θ∆∆θθθ)
difference between reference air temperature and mean cooling water temperature, ∆θ=θ - θ
r w
3.1.18
nominal temperature difference (∆∆∆∆θθθθ )
N
nominal temperature difference (8 K) between the reference air temperature and the mean cooling water
temperature (∆θ =θ - θ =8 K)
N r w
3.1.19
primary air temperature difference (∆∆∆∆θθθθ )
p
temperature difference between the reference air temperature and the primary air temperature
3.1.20
specific heat capacity (c )
p
heat required to raise the temperature of a unit mass of the cooling medium by 1K
-1 -1 -1 -1
NOTE c for water = 4,187 kJ·kg ·K and c for air = 1,005 kJ·kg ·K , at 15 °C.
p p
3.1.21
cooling length (L)
active length of the cooling section
3.1.22
total length (L )
t
total installed length of the cooling section including casing
3.1.23
water side cooling capacity (P )
w
cooling capacity of the test object calculated from the measured cooling water flow rate and the cooling
water temperature rise P =c q (θ - θ )
w p m w2 w1
3.1.24
primary air cooling capacity (P )
a
cooling capacity calculated from the primary air flow rate and primary air temperature difference
P = c q ρ (θ - θ )
a p p p r p
3.1.25
specific cooling capacity per unit length (P )
L
water side cooling capacity divided by the (active) cooling section length
3.1.26
specific cooling capacity (P )
K
cooling capacity divided by the difference between reference air temperature and mean cooling water
m
temperature, ∆θ=θ - θ raised to the exponent m i.e. P = P /∆θ
r w K w
3.1.27
nominal cooling capacity (P ) or nominal specific cooling capacity (P )
N LN
water side cooling capacity calculated from the curve of best fit for the nominal cooling water flow rate at
nominal temperature difference (∆θ = 8 K) and at nominal air flow rate
N
3.2 Symbols and units
For the purposes of this document the symbols given in EN 12792:2003 apply together with those given
in Table 1.
Table 1 — Symbols and uni
...
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