kSIST FprEN 14037-2:2013

Free hanging heating and cooling surfaces for water with a temperature below 120°C - Part 2: Test method for thermal output of ceiling mounted radiant panels

This European Standard describes the test method and the test installation for determining the thermal output of ceiling mounted radiant panels.

An der Decke frei abgehängte Heiz- und Kühlflächen für Wasser mit einer Temperatur unter 120°C - Teil 2: Prüfverfahren für die Wärmeleistung von Deckenstrahlplatten

Diese Europäische Norm legt die Prüfverfahren und die Prüfeinrichtung zur Bestimmung der Wärmeleistung von Deckenstrahlplatten gemäß den Angaben in prEN 14037-1, Abschnitt 3.3.1, fest.

Panneaux rayonnants de plafond alimentés en eau à une température inférieure à 120°C - Partie 2: Méthodes d'essai pour la détermination de la puissance thermique

La présente Norme européenne définit la méthode d'essai ainsi que l'installation d'essai pour la détermination de la puissance thermique des panneaux rayonnants de plafond selon les spécifications du Paragraphe 3.3.1 de l’EN  14037-1.

Stropne sevalne plošče za ogrevanje in hlajenje površin za vodo s temperaturo pod 120° C - 2. del: Preskusna metoda toplotne moči stropnih sevalnih plošč

General Information

• Status: Not Published
• Public Enquiry End Date: 28-Feb-2012
• ICS: 91.140.10 - Central heating systems
• ICS: 91.140.65 - Water heating equipment
• Technical Committee: OGS - Heating for buildings
• Current Stage: 98 - Abandoned project (Adopted Project)
• Start Date: 27-Sep-2016
• Due Date: 02-Oct-2016
• Completion Date: 27-Sep-2016
• Ref Project: EN 14037-2:2013 - Free hanging heating and cooling surfaces for water with a temperature below 120 °C - Part 2: Test method for thermal output of ceiling mounted radiant panels

Relations

• Revised: SIST EN 14037-2:2004 - Ceiling mounted radiant panels supplied with water at temperature below 120 °C - Part 2: Test method for thermal output
• Effective Date: 07-Nov-2009
• Revised: SIST EN 14037-2:2004 - Ceiling mounted radiant panels supplied with water at temperature below 120 °C - Part 2: Test method for thermal output
• Effective Date: 18-Jan-2023
• Revised: SIST EN 14037-2:2004 - Ceiling mounted radiant panels supplied with water at temperature below 120 °C - Part 2: Test method for thermal output
• Effective Date: 19-Jan-2023
• Revised: SIST EN 14037-2:2004 - Ceiling mounted radiant panels supplied with water at temperature below 120 °C - Part 2: Test method for thermal output
• Effective Date: 08-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN 14037-2:2012
01-januar-2012
6WURSQHVHYDOQHSORãþH]DRJUHYDQMHLQKODMHQMHSRYUãLQ]DYRGRVWHPSHUDWXUR
SRGƒ&GHO3UHVNXVQDPHWRGDWRSORWQHPRþLVWURSQLKVHYDOQLKSORãþ
Free hanging heating and cooling surfaces for water with a temperature below 120°C -
Part 2: Test method for thermal output of ceiling mounted radiant panels
An der Decke frei abgehängte Heiz- und Kühlflächen für Wasser mit einer Temperatur
unter 120°C - Teil 2: Prüfverfahren für die Wärmeleistung von Deckenstrahlplatten
Panneaux rayonnants de plafond alimentés en eau à une température inférieure à 120°C
- Partie 2: Méthodes d'essai pour la détermination de la puissance thermique
Ta slovenski standard je istoveten z: prEN 14037-2
ICS:
91.140.10 Sistemi centralnega Central heating systems
ogrevanja
91.140.65 Oprema za ogrevanje vode Water heating equipment
oSIST prEN 14037-2:2012 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 14037-2:2012

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oSIST prEN 14037-2:2012


EUROPEAN STANDARD
DRAFT
prEN 14037-2
NORME EUROPÉENNE

EUROPÄISCHE NORM

November 2011
ICS 91.140.10 Will supersede EN 14037-2:2003
English Version
Free hanging heating and cooling surfaces for water with a
temperature below 120°C - Part 2: Test method for thermal
output of ceiling mounted radiant panels
Panneaux rayonnants de chauffage et de rafraîchissement An der Decke frei abgehängte Heiz- und Kühlflächen für
alimentés avec une eau à une température inférieure à 120 Wasser mit einer Temperatur unter 120 °C - Teil 2:
°C - Partie 2: Méthodes d'essai pour la détermination de la Prüfverfahren für die Wärmeleistung von
puissance thermique des panneaux rayonnants de plafond Deckenstrahlplatten
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 130.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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 and United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14037-2:2011: E
worldwide for CEN national Members.

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prEN 14037-2:2011 (E)
Contents
Foreword . 4
Introduction . 5
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Testing of thermal output . 5
5 Test booth . 6
5.1 Dimensions of the test booth . 7
5.2 Emissivity of the inside surrounding surfaces . 8
5.3 Tightness of the test booth . 8
5.4 Cooling system . 8
5.5 Temperature measuring points . 8
5.5.1 Reference room temperature . 8
5.5.2 Air temperature . 9
5.5.3 Surface temperature of the inside surfaces . 10
6 Master Panels . 11
6.1 General . 11
6.2 Determination of the value ΦΦΦΦ of master panels (Primary set) . 11
M,s
6.3 Construction details . 11
6.3.1 Dimensions . 11
6.3.2 Material . 11
6.3.3 Construction . 11
6.3.4 Dimensional verification . 11
6.4 Verification of test installation, repeatability and reproducibility . 17
7 Test methods . 18
7.1 General . 18
7.2 Weighing method . 18
7.3 Measurement of the inlet and outlet temperatures . 19
7.4 Measurement of the control temperatures . 19
7.5 Uncertainty of the measured thermal output . 19
7.6 Air pressure . 19
8 Carrying out the measurement . 20
8.1 Dimensions and construction of the test samples . 20
8.2 Selection of the models to be tested for determining the thermal output of a type . 20
8.3 Manufacturer documents for the test samples . 20
8.4 Arrangement of the sample in the test booth . 20
8.5 Upper insulation of the test sample . 22
8.6 Connection of the test sample to the measuring circuit . 22
8.7 Tests . 22
8.8 Mass flow . 23
8.9 Test temperatures . 23
8.10 Steady state conditions . 23
8.11 Correction due to the air pressure . 23
8.12 Result of measurement – Characteristic equation . 23
9 Test report . 24
9.1 General . 24
9.2 Data . 24
Annex A (normative) Dimensional verification of master panels . 25
A.1 Determination ΦΦΦΦ  -values of the master panels (primary set) . 25
M,s
A.2 Dimensional verification and manufacturing certification for master panel 1 . 25
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A.3 Dimensional verification and manufacturing certification for master panel 2 . 27
Annex B (informative) Temperature measuring device . 30
Annex C (normative) Least squares regression for a model . 31
Annex D (informative) Specimen of the test report for heating capacity . 32
Bibliography . 35


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Foreword
This document (prEN 14037-2:2011) has been prepared by Technical Committee CEN/TC 130 “Space heating
appliances without integral heat sources”, the secretariat of which is held by UNI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 14037-2:2003.
The main changes are:
- the title has been changed,
- a new Master panel 2 has been added,
- the chapter 9 "Test Report" has been reworked.
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Introduction
This European Standard results from the recognition that the ceiling mounted heating and cooling surfaces falling
into the field of application hereinafter stated are traded of the basis of their thermal and cooling output. For evalu-
ating and comparing different ceiling mounted radiant panels it is therefore necessary to refer to a single stipulated
value.
The European Standard EN 14037, Free hanging heating and cooling surfaces for water with a temperature below
120°C consists of the following parts:
- Part 1: Technical specifications and requirements
- Part 2: Test method for thermal output of ceiling mounted radiant panels
- Part 3: Rating method and evaluation of radiant thermal output of ceiling mounted radiant panels
- Part 4: Test method for cooling capacity of ceiling mounted radiant panels
- Part 5: Test method for thermal output of open or closed heated ceiling surfaces

1 Scope
This European Standard describes the test method and the test installation for determining the thermal output of
ceiling mounted radiant panels according to the specifications of prEN 14037-1, clause 3.3.1.
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.
prEN 442-2, Radiators and convectors – Part 2: Test methods and rating
prEN 14037-1, Free hanging heating and cooling surfaces for water with a temperature below 120°C - Part 1:
Technical specifications and requirements
prEN 14037-3, Free hanging heating and cooling surfaces for water with a temperature below 120°C – Part 3: Rat-
ing method and evaluation of radiant thermal output of ceiling mounted radiant panels
EN ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories
(ISO/IEC 17025:1999)
3 Terms and definitions
For the purposes of this European Standard, the terms and definitions given in prEN 14037-1 apply.
4 Testing of thermal output
The test is carried out in a testing system, which consists of a closed booth with controlled temperatures of the in-
side surfaces plus a set of two master panels built according to clause 6.
5

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The method for measuring the thermal output consists of the measurement of mass flow and enthalpy difference
between inlet and outlet (by weighing method). Other measurement methods shall guarantee in minimum the pre-
cision obtained by weighing method.
All laboratories that make tests according this standard have to make comparable measurements with the other
laboratories (according to clause 6 of this standard).
5 Test booth
The booth for testing ceiling mounted radiant panels shall be constructed in a way that all six surrounding surfaces
can be chilled.
Figure 1 shows the schematic lay-out of a test booth with a six-wall cooling. The walls are defined as follows:
Wall 1: the wall parallel to the inlet header
Wall 2: the wall to the right of wall 1
Wall 3: the wall opposite of wall 1
Wall 4: the wall to the left of wall 1
Wall 5: the floor
Wall 6: the ceiling
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Key
C Cooling circuit connection
I Inlet cooling water
O Outlet cooling water
A Cooling water accumulator
P Circulating pump
H After heater
1.6 Designation of the surrounding inside surfaces
Figure 1 — Example of the hydraulic system of a test booth
5.1 Dimensions of the test booth
The test booth has to have the following inside dimensions:
Length: (4 ± 0,02) m
Width: (4 ± 0,02) m
Height: (3 ± 0,02) m
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5.2 Emissivity of the inside surrounding surfaces
Walls, ceiling and floor shall have smooth inside surfaces covered with a coat of mat paint having a degree of
emissivity of minimum 0,9.
5.3 Tightness of the test booth
The test booth construction shall be sufficiently tight to prevent air infiltration.
5.4 Cooling system
The cooling system is to be carried out in order, that the difference between the 6 chilled surrounding inside sur-
faces of the test booth and the average temperature of all 6 surfaces is not higher than 0,5 K. The temperature dif-
ference between inlet and outlet shall not be higher then 0,5 K. That condition shall be maintained at the tests for
the determination of the characteristic equation.
5.5 Temperature measuring points
5.5.1 Reference room temperature
The reference room temperature is measured on at a height of 0,75 m above the floor of the test booth by means of
a globe thermometer (see Figure 2). The measuring point is situated on the vertical axis through the central point of
the ceiling mounted radiant panel.

Dimensions in millimetres


Key
1 Temperature measuring point
Figure 2 — Globe thermometer
Temperature sensor with blackened light metal sphere (diameter 150 mm, emissivity 0,9). The measuring point is
arranged in the centre of the sphere. The penetration of the temperature sensor through the surface of the sphere
runs horizontally and is air tight. The hollow sphere is attached to the temperature sensor.
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5.5.2 Air temperature
The air temperature is measured with sensors protected against radiation (see Figure 3).
The measuring points are situated on 2 vertical axes at 3 different heights as shown in Figure 4.

Dimensions in millimetres


Key
1 Temperature measuring point
H Height of the measuring point
Figure 3 — Example of a measuring point protected against radiation
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Dimensions in millimetres

Key
1 Air temperature measuring points
2 Reference room temperature measuring point
3 Ceiling mounted radiant panel
4 Axes of air temperature measuring points
Figure 4 — Arrangement of measuring points for the reference room temperature and for air temperature

5.5.3 Surface temperature of the inside surfaces
The surface temperatures of the inside walls is calculated as average value of the inlet and outlet water tempera-
ture of each single surface wall.
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6 Master Panels
The master panels which are part of the testing system consist of a model with a full direct heating surface with a
width of 1190 mm (master panel 1) and of a model with 3 tubes and a radiant sheet as indirect heating surface with
a width of 300 mm.
6.1 General
The purpose of the master panels is the following:
a) to verify if the reproducibility of test values among test laboratories is within the limits set by this European
Standard;
b) to establish a common basis for all test installations to verify that the repeatability of test values in each test
installation is within the limits set by this European Standard.
To verify the reproducibility among test installations built according to prEN 14037-2 a single set of master panels
constructed and verified according to prEN 14037-2 will be circulated among test installations to determine the
relevant Φ and Φ values. This single set of master panels is named "primary set".
M,s O,s
Each laboratory shall equip itself with the master panel 2 constructed and verified according to prEN 14037-2. This
panel named "secondary set" shall be used to verify the repeatability of the test installation.
6.2 Determination of the value ΦΦΦΦ of master panels (Primary set)
M,s
The method of determination the value Φ of the master panel is contained in prEN 14037-2, annex A.
M,s
6.3 Construction details
6.3.1 Dimensions
The main dimensions of the two master panels are given in the drawings Figures 5 to 10.
6.3.2 Material
The master panels shall be constructed from the materials St 37 stated in the drawings Figures 5 to 10.
6.3.3 Construction
Master panels shall be constructed according to the specifications contained in prEN 14037-2.
6.3.4 Dimensional verification
Master panels shall be dimensionally verified according to the procedure contained in prEN 14037-2 annex A and a
complete report as requested by prEN 14037-2 shall be prepared and kept available for any further check.



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Dimensions in millimetres


Key
a Detail B (see Figure 6)
1 Female screw socket 1”
2 L-profile 50 x 30 x 5
length 1120
3 Rectangular tube 70 x 11 x 2
Figure 5 — Master panel 1, projection and main dimensions
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Dimensions in millimetres



water circulation
Key
x Welding
Figure 6 — Master panel 1, details of headers, water circulation
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Dimensions in millimetres

Key

1 radiant sheet s = 1,25 mm Detail X lead through of tube register through front
2 front sheet s = 2,00 mm  sheet
3 tube register, rectangular tube Detail Y bores in the front sheet for hole -weldings
25 x 25 x 2, EN 10219-2 (30 x)
4 rectangular tube 45 x 45 x 2,5, EN 10219-2
5 eye for suspension welded
∅ ext. 32,5 mm; ∅ int. 22,5 mm; material ∅ 6 mm
6 header connection 1“ female
7 point welding front sheet / radiant sheet (at inner side)
Figure 7 — Master-panel 2, Isometric view









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Dimensions in millimetres


Key

1 radiant sheet s = 1,25 mm
2 front sheet s = 2,00 mm
3 tube register, rectangular tube
25 x 25 x 2, EN 10219-2
4 rectangular tube 45 x 45 x 2,5, EN 10219-2
5 eye for suspension welded
∅ ext. 32,5 mm; ∅ int. 22,5 mm; material ∅ 6 mm
6 header connection 1“ female

Figure 8 — Master-panel 2, projection and main dimensions











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Dimensions in millimetres






    a) detail front sheet












 b) detail radiant sheet                       c) detail connection tube
Key
1radiant sheet s = 1,25 mm 6 header connection 1“ female
2 front sheet s = 2,00 mm 7 socket welded
3 tube register, rectangular tube 25 x 25 x 2, EN 10219-2 8 baffle 100 % tide welded
4 rectangular tube 45 x 45 x 2,5, EN 10219-2 9 register tube welded
10 point welding front sheet / radiant sheet
5 eye for suspension welded ∅ ext. 32,5 mm; ∅ int. 22,5 mm;
material ∅ 6 mm
Figure 9 — Master-panel 2, Details of radiant sheet, front sheet and connecting tube

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Dimensions in millimetres


Figure 10 — Master-panel 2, Detail of radiant sheet

6.4 Verification of test installation, repeatability and reproducibility
All test installations shall be verified for:
 constructional conformity: The laboratory shall state the conformity according to prEN 14037-2. Any statement
concerning thermal outputs shall be accompanied by a statement indicating the test conditions in which the
stated outputs have been obtained;
 repeatability: The repeatability precision shall be within an allowed tolerance s when testing a single master
0
panel in the same test installation at short or long intervals. The testing laboratory will use its own master panel
(secondary set) to determine the repeatability tolerance s of the test installation. Using this master panel, heat
0
output tests shall be carried out in accordance with clauses 7 and 8. The latest test for repeatability shall not
have taken place longer than 6 month before a thermal heat output test. The repeatability shall be tested every
12 month in minimum. To prove the repeatability precision of a test laboratory, the results of five consecutive
tests at the starting of the test installation shall be within a tolerance range s = 20 W according to 8.9;
0
 reproducibility: The reproducibility shall be proved by using the primary set of master panels. The test results
(carried out in accordance with 8.9) shall be within the tolerance s = ± 20 W of the Φ -value of each master
m M,s
panel.
The test laboratories have to proof the reproducibility in periodical tests.

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prEN 14037-2:2011 (E)
7 Test methods
7.1 General
The aim of the thermal output test is to establish the standard characteristic equation of a ceiling mounted radiant
panel by determining the related values of thermal output and temperature difference. Neither of these quantities
can be measured directly, but shall be calculated using the values of other measurable quantities, either directly or
with additional information (calibration test, material properties table), by using mathematical relationships.
7.2 Weighing method
The thermal output Φ is calculated based on the water flow rate q and the measured temperatures t and t .
me m 1 2
These temperatures are used to calculate the specific enthalpies as determined by the international steam tables at
a reference water pressure of 120 kPa:
Φ = q (h − h )
me m 1 2
The water flow rate is measured directly by a calibrated flow-meter in a closed water circuit (see Figure 11) or cal-
culated using the mass of the water m collected in a measuring vessel and the relevant time interval τ (prEN 442-2,
6.4.2).
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Key
1 Panel in the test booth 9 Control unit for flow temperature
2 Water circuit for measurement 10 Container with overflow for calibration device
3 Connection of the calibration device to the measuring cir- 11 Recording- and evaluating instruments
cuit
4 Circulating pump in the measuring circuit (controlled) 12 Collecting- and draining installation for calibrating meas-
urement
5 Electric heating element in the measuring circuit for flow 13 Heating device for calibrating measurement
temperature control
6 Mass flow measuring instrument 14 Test booth
7 Temperature measuring points 15 Bypass
8 Control unit for mass flow 16 Water supply for calibration device
Figure 11 — Basic diagram of test installation with continuous measurement of the mass flow (weighing
method) and with a device for calibrating the measuring instrumentation
7.3 Measurement of the inlet and outlet temperatures
The bulk temperature of the water at inlet and outlet shall be measured with a device which ensures a sufficient
accuracy. This result can be reached for example by a measuring device according to prEN 14037-2 annex B.
7.4 Measurement of the control temperatures
All temperatures which do not serve for the determination of the thermal output shall be measured with an accuracy
of ± 0,1 K.
7.5 Uncertainty of the measured thermal output
The maximum uncertainty in measuring the thermal output shall not exceed ± 10 W.
7.6 Air pressure
The air pressure is measured with a tolerance of ± 2 hPa.
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8 Carrying out the measurement
The natural convection inside the test booth shall not be influenced by additional means.
8.1 Dimensions and construction of the test samples
The active length of the ceiling mounted radiant panels without the connection components shall be within the
range of 2,9 m to 3,1 m, the width shall be within a range of 0,3 m to 1,5 m. The construction length including the
connection components shall be max. 3,5 m. No elements which could increase the heat output shall be added to
the linkage between the active length and the collectors/headers.
The tubes of the radiant ceiling panels shall be placed individually in series. The upper insulation is installed by the
test laboratory according to 8.5.
8.2 Selection of the models to be tested for determining the thermal output of a type
For determining the thermal output of a type the models with the smallest and largest width within the range ac-
cording to 8.1 are to be tested at least. Interpolation of thermal ou
...