SIST EN ISO 9806:2014
(Main)Solar energy - Solar thermal collectors - Test methods (ISO 9806:2013)
Solar energy - Solar thermal collectors - Test methods (ISO 9806:2013)
This International Standard specifies test methods for assessing the durability, reliability and safety for fluid heating collectors. This International Standard also includes test methods for the thermal performance characterization of fluid heating collectors, namely steady-state and quasi-dynamic thermal performance of glazed and unglazed liquid heating solar collectors and steady-state thermal performance of glazed and unglazed air heating solar collectors (open to ambient as well as closed loop). This International Standard is also applicable to hybrid collectors generating heat and electric power. However it does not cover electrical safety or other specific properties related to electric power generation. This International Standard is also applicable to collectors using external power sources for normal operation and/or safety purposes. This International Standard is not applicable to those collectors in which the thermal storage unit is an integral part of the collector to such an extent that the collection process cannot be separated from the storage process for the purpose of making measurements of these two processes.
Solarenergie - Thermische Sonnenkollektoren - Prüfverfahren (ISO 9806:2013)
Diese Internationale Norm legt Prüfverfahren für die Überprüfung von Flüssigkeitskollektoren in Bezug auf die
Einhaltung der in EN 12975-1 festgelegten Dauerhaftigkeits-, Zuverlässigkeits- und Sicherheitsanforderungen
fest. Außerdem enthält diese Internationale Norm vier Prüfverfahren für die Bewertung von Flüssigkeitskollektoren
hinsichtlich ihrer Wärmeleistung. Dabei handelt es sich um die Wärmeleistung von abgedeckten und
unabgedeckten Flüssigkeitskollektoren im stationären Zustand und unter quasi-dynamischen Bedingungen
und um die Wärmeleistung von abgedeckten und unabgedeckten Luftkollektoren im stationären Zustand. Die
Abhängigkeit der Leistung von der Durchflussgeschwindigkeit wird nur im Falle der Luftkollektoren erfasst.
Diese Internationale Norm ist nicht auf Kollektoren anwendbar, bei denen der Wärmespeicher ein integraler
Bestandteil des Kollektors ist, so dass sich der Prozess im Kollektor nicht vom Prozess der
Wärmespeicherung trennen lässt, wie dies erforderlich sein kann, um beispielweise Messungen in Bezug auf
diese beiden Prozesse durchzuführen.
Die vorliegende Internationale Norm ist auch auf thermo-elektrische Hybridkollektoren, die sogenannten fotovoltaisch-
thermischen bzw. PVT-Kollektoren, anwendbar; jedoch deckt sie weder die elektrische Sicherheit
noch andere speziell mit dem PV-Teil dieser Kollektoren verbundene Eigenschaften ab. Kundenspezifisch
hergestellte Kollektoren (z. B. in der Dacheindeckung integrierte Kollektoren, die nicht aus werkmäßig hergestellten
Modulen bestehen und direkt am Einsatzort zusammengebaut werden) können in ihrer ursprünglichen
Form nicht nach dieser Internationalen Norm in Bezug auf Dauerhaftigkeit, Zuverlässigkeit und Wärmeleistung
geprüft werden. Daher sind bei der Prüfung dieser Kollektortypen spezielle Größenanforderungen zu berücksichtigen,
und die Prüfung ist nur für Kollektoren gültig, die größer sind als das geprüfte Modul.
Énergie solaire - Capteurs thermiques solaires - Méthodes d'essai (ISO 9806:2013)
L'ISO 9806:2013 spécifie les méthodes d'essai permettant d'évaluer la durabilité, la fiabilité et la sécurité des capteurs à circulation de fluide.
Elle comprend également des méthodes d'essai permettant de caractériser les performances thermiques des capteurs à circulation de fluides, à savoir les performances thermiques des capteurs solaires à circulation de liquide, vitrés et sans vitrage, à l'état stationnaire et quasi-stationnaire et les performances thermiques des capteurs solaires à air, vitrés et sans vitrage, à l'état stationnaire (aussi bien en boucle fermée qu'ouverts à l'atmosphère).
L'ISO 9806:2013 s'applique également aux capteurs hybrides produisant de l'énergie thermique et électrique. Toutefois, elle ne traite pas de la sécurité électrique ni d'autres propriétés spécifiques en rapport avec la production d'énergie électrique.
Elle s'applique également aux capteurs utilisant des sources d'alimentation externes pour leur fonctionnement normal et/ou à des fins de sécurité.
L'ISO 9806:2013 ne s'applique pas aux capteurs dans lesquels le dispositif de stockage thermique fait partie intégrante du capteur dans la mesure où les opérations de captage et de stockage de l'énergie ne peuvent pas être séparées en vue d'effectuer des mesures de ces deux procédés.
Sončna energija - Sprejemniki sončne energije - Preskusne metode (ISO 9806:2013)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 9806:2014
01-april-2014
1DGRPHãþD
SIST EN 12975-2:2006
6RQþQDHQHUJLMD6SUHMHPQLNLVRQþQHHQHUJLMH3UHVNXVQHPHWRGH ,62
Solar energy - Solar thermal collectors - Test methods (ISO 9806:2013)
Solarenergie - Thermische Sonnenkollektoren - Prüfverfahren (ISO 9806:2013)
Énergie solaire - Capteurs thermiques solaires - Méthodes d'essai (ISO 9806:2013)
Ta slovenski standard je istoveten z: EN ISO 9806:2013
ICS:
27.160 6RQþQDHQHUJLMD Solar energy engineering
SIST EN ISO 9806:2014 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 9806:2014
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SIST EN ISO 9806:2014
EUROPEAN STANDARD
EN ISO 9806
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2013
ICS 27.160 Supersedes EN 12975-2:2006
English Version
Solar energy - Solar thermal collectors - Test methods (ISO
9806:2013)
Énergie solaire - Capteurs thermiques solaires - Méthodes Solarenergie - Thermische Sonnenkollektoren -
d'essai (ISO 9806:2013) Prüfverfahren (ISO 9806:2013)
This European Standard was approved by CEN on 7 September 2013.
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.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 9806:2013 E
worldwide for CEN national Members.
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SIST EN ISO 9806:2014
EN ISO 9806:2013 (E)
Contents
Page
Foreword .3
2
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SIST EN ISO 9806:2014
EN ISO 9806:2013 (E)
Foreword
The text of ISO 9806:2013 has been prepared by Technical Committee ISO/TC 180 “Solar energy” of the
International Organization for Standardization (ISO) and has been taken over as EN ISO 9806:2013 by
Technical Committee CEN/TC 312 “Thermal solar systems and components” the secretariat of which is held
by ELOT.
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 May 2014, and conflicting national standards shall be withdrawn at the
latest by May 2014.
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.
This document supersedes EN 12975-2:2006.
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, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 9806:2013 has been approved by CEN as EN ISO 9806:2013 without any modification.
3
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SIST EN ISO 9806:2014
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SIST EN ISO 9806:2014
INTERNATIONAL ISO
STANDARD 9806
First edition
2013-11-15
Solar energy — Solar thermal
collectors — Test methods
Énergie solaire — Capteurs thermiques solaires — Méthodes d’essai
Reference number
ISO 9806:2013(E)
©
ISO 2013
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SIST EN ISO 9806:2014
ISO 9806:2013(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2013
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested 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 2013 – All rights reserved
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SIST EN ISO 9806:2014
ISO 9806:2013(E)
Contents Page
Foreword .vi
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms . 3
5 General . 8
5.1 Test overview - Sequence of the tests . 8
5.2 Particular aspects of collectors using external power sources and active or passive
measures for normal operation and self-protection . 9
6 Internal pressure tests for fluid channels .10
6.1 Inorganic fluid channels .10
6.2 Fluid channels made of organic materials (plastics or elastomers) .10
6.3 Apparatus and procedure .10
6.4 Results .11
7 Leakage test (closed loop air heating collectors only) .11
7.1 Objective .11
7.2 Apparatus and procedure .11
7.3 Test conditions .12
7.4 Results .12
8 Rupture or collapse test (air heating collectors only) .12
8.1 Objective .12
8.2 Apparatus and Procedure .13
8.3 Test conditions .14
8.4 Results and reporting .14
9 High-temperature resistance test .14
9.1 Objective .14
9.2 Apparatus and procedure .14
9.3 Test conditions .15
9.4 Results .15
10 Standard stagnation temperature of liquid heating collectors .16
10.1 General .16
10.2 Measurement and extrapolation of standard stagnation temperature .16
10.3 Determining standard stagnation temperature using efficiency parameters .17
10.4 Results .17
11 Exposure and pre-exposure test .18
11.1 Objective .18
11.2 Apparatus and procedure .18
11.3 Test conditions .18
11.4 Results .19
12 External thermal shock test .19
12.1 Objective .19
12.2 Apparatus and procedure .19
12.3 Test conditions .20
12.4 Results .20
13 Internal thermal shock test .20
13.1 Objective .20
13.2 Apparatus and procedure .20
13.3 Test conditions .21
© ISO 2013 – All rights reserved iii
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SIST EN ISO 9806:2014
ISO 9806:2013(E)
13.4 Results .21
14 Rain penetration test .21
14.1 Objective .21
14.2 Apparatus and procedure .21
14.3 Test conditions .22
14.4 Results .24
15 Freeze resistance test .24
15.1 Objective .24
15.2 Apparatus and procedure .24
15.3 Test conditions .25
15.4 Results .25
16 Mechanical load test with positive or negative pressure .25
16.1 Objectives.25
16.2 Apparatus and procedure .25
16.3 Test conditions .26
16.4 Results .26
17 Impact resistance test .26
17.1 Objective .26
17.2 Test procedure .27
17.3 Impact location .27
17.4 Method 1: Impact resistance test using ice balls .27
17.5 Method 2: Impact resistance test using steel balls .28
17.6 Results .28
18 Final inspection (related to Clauses 5 to 17) .29
19 Test report (related to Clauses 5 to 18) .29
20 Performance testing of fluid heating collectors .29
20.1 General .29
20.2 Steady-state efficiency test using a solar irradiance simulator .30
21 Collector mounting and location .31
21.1 General .31
21.2 Collector frame . .31
21.3 Tilt angle .32
21.4 Collector orientation outdoors.32
21.5 Shading from direct solar irradiance .32
21.6 Diffuse and reflected solar irradiance .33
21.7 Thermal irradiance .33
21.8 Surrounding air speed .33
22 Instrumentation .34
22.1 Solar radiation measurement.34
22.2 Thermal radiation measurement .35
22.3 Temperature measurements .37
22.4 Flow rate measurement .39
22.5 Surrounding air speed measurement.40
22.6 Elapsed time measurement .41
22.7 Pressure measurement .41
22.8 Humidity measurement .42
22.9 Collector gross area .42
22.10 Collector fluid capacity .42
23 Test installation .42
23.1 Liquid heating collectors .42
23.2 Air heating collectors .46
24 Performance test procedures .48
24.1 General .48
iv © ISO 2013 – All rights reserved
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SIST EN ISO 9806:2014
ISO 9806:2013(E)
24.2 Test installation .49
24.3 Preconditioning of the collector .49
24.4 Test conditions .49
24.5 Test procedure .51
24.6 Measurements .52
24.7 Test period .54
24.8 Presentation of results .59
25 Computation of the collector parameters .59
25.1 Liquid heating collectors .59
25.2 Steady-state air heating collectors .63
26 Determination of the effective thermal capacity and the time constant of a collector .64
26.1 Measurement of the effective thermal capacity (separate measurement) .64
26.2 Measurement of the effective thermal capacity (quasi dynamic method) .66
26.3 Calculation method .66
26.4 Determination of collector time constant (optional) .67
27 Determination of incident angle modifier .69
27.1 Modelling .69
27.2 Test procedures .73
27.3 Calculation of collector incidence angle modifier .74
28 Determination of the pressure drop across a collector (Liquid) (optional) .75
28.1 General .75
28.2 Test installation .75
28.3 Preconditioning of the collector .75
28.4 Test procedure .
...
SLOVENSKI STANDARD
oSIST prEN ISO 9806:2012
01-junij-2012
7RSORWQLVRQþQLVLVWHPL6SUHMHPQLNLVRQþQHHQHUJLMH3UHVNXVQHPHWRGH
,62',6
Solar energy - Solar thermal collectors - Test methods (ISO/DIS 9806:2012)
Solarenergie - Thermische Sonnenkollektoren - Prüfverfahren (ISO/DIS 9806:2012)
Énergie solaire - Capteurs thermiques solaires - Méthodes d'essai (ISO/DIS 9806:2012)
Ta slovenski standard je istoveten z: prEN ISO 9806
ICS:
27.160 6RQþQDHQHUJLMD Solar energy engineering
oSIST prEN ISO 9806:2012 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN ISO 9806:2012
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oSIST prEN ISO 9806:2012
EUROPEAN STANDARD
DRAFT
prEN ISO 9806
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2012
ICS 27.160 Will supersede EN 12975-2:2006
English Version
Solar energy - Solar thermal collectors - Test methods (ISO/DIS
9806:2012)
Énergie solaire - Capteurs thermiques solaires - Méthodes Solarenergie - Thermische Sonnenkollektoren -
d'essai (ISO/DIS 9806:2012) Prüfverfahren (ISO/DIS 9806:2012)
This draft European Standard is submitted to CEN members for parallel enquiry. It has been drawn up by the Technical Committee
CEN/TC 312.
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, Turkey 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
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN ISO 9806:2012: E
worldwide for CEN national Members.
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oSIST prEN ISO 9806:2012
prEN ISO 9806:2012 (E)
Contents Page
Foreword .3
2
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oSIST prEN ISO 9806:2012
prEN ISO 9806:2012 (E)
Foreword
This document (prEN ISO 9806:2012) has been prepared by Technical Committee CEN/TC 312 “Thermal
solar systems and components” the secretariat of which is held by ELOT, in collaboration with ISO/TC 180
“Solar energy".
This document is currently submitted to the parallel Enquiry.
This document will supersede EN 12975-2:2006.
3
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oSIST prEN ISO 9806:2012
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oSIST prEN ISO 9806:2012
DRAFT INTERNATIONAL STANDARD ISO/DIS 9806
ISO/TC 180 Secretariat: SA
Voting begins on Voting terminates on
2012-04-19 2012-09-19
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION
Solar energy — Solar thermal collectors — Test methods
Énergie solaire — Capteurs thermiques solaires — Méthodes d'essai
(Revision of ISO 9806-1:1994, ISO 9806-2:1995 and ISO 9806-3:1995)
ICS 27.160
ISO/CEN PARALLEL PROCESSING
This draft has been developed within the European Committee for Standardization (CEN), and
processed under the CEN-lead mode of collaboration as defined in the Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member bodies for a parallel
five-month enquiry.
Should this draft be accepted, a final draft, established on the basis of comments received, will be
submitted to a parallel two-month approval vote in ISO and formal vote in CEN.
To expedite distribution, this document is circulated as received from the committee
secretariat. ISO Central Secretariat work of editing and text composition will be undertaken at
publication stage.
Pour accélérer la distribution, le présent document est distribué tel qu'il est parvenu du
secrétariat du comité. Le travail de rédaction et de composition de texte sera effectué au
Secrétariat central de l'ISO au stade de publication.
THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE
REFERRED TO AS AN INTERNATIONAL STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS.
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.
© International Organization for Standardization, 2012
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oSIST prEN ISO 9806:2012
ISO/DIS 9806
Copyright notice
This ISO document is a Draft International Standard and is copyright-protected by ISO. Except as permitted
under the applicable laws of the user’s country, neither this ISO draft nor any extract from it may be
reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic,
photocopying, recording or otherwise, without prior written permission being secured.
Requests for permission to reproduce should be addressed to 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
Reproduction may be subject to royalty payments or a licensing agreement.
Violators may be prosecuted.
ii © ISO 2012 – All rights reserved
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oSIST prEN ISO 9806:2012
ISO/DIS 9806
Contents Page
Foreword .viii
Introduction.ix
1 Scope.1
2 Normative references.1
3 Terms and definitions .2
4 Symbols and abbreviated terms .5
5 Reliability testing of fluid heating collectors.10
5.1 General .10
5.2 Internal pressure tests for fluid channels.11
5.2.1 Inorganic fluid channels .11
5.2.2 Fluid channels made of organic materials (plastics or elastomers).12
5.3 Leakage test (air heating collectors only).14
5.3.1 Objective .14
5.3.2 Apparatus and procedure.14
5.3.3 Test conditions .14
5.3.4 Results.14
5.4 High-temperature resistance test .14
5.4.1 Objective .14
5.4.2 Apparatus and procedure.15
5.4.3 Test conditions .15
5.4.4 Results.16
5.5 Exposure test.16
5.5.1 Objective .16
5.5.2 Apparatus and procedure.16
5.5.3 Test conditions .17
5.5.4 Results.17
5.6 External thermal shock test .18
5.6.1 Objective .18
5.6.2 Apparatus and procedure.18
5.6.3 Test conditions .18
5.6.4 Results.19
5.7 Internal thermal shock test.19
5.7.1 Objective .19
5.7.2 Apparatus and procedure.19
5.7.3 Test conditions .19
5.7.4 Results.20
5.8 Rain penetration test.20
5.8.1 Objective .20
5.8.2 Apparatus and procedure.20
5.8.3 Test conditions .21
5.8.4 Results.23
5.9 Freeze resistance test.23
5.9.1 Objective .23
5.9.2 Apparatus and procedure.23
5.9.3 Test conditions .24
5.9.4 Results.24
5.10 Mechanical load test .24
5.10.1 Positive pressure test of the collector .24
5.10.2 Negative pressure test of the collector.25
© ISO 2011 – All rights reserved iii
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oSIST prEN ISO 9806:2012
ISO/DIS 9806
5.11 Impact resistance test . 26
5.11.1 Objective. 26
5.11.2 Method 1: Impact resistance test using ice balls. 27
5.11.3 Method 2: Impact resistance test using steel balls. 30
5.11.4 Results. 31
5.12 Final inspection. 31
5.13 Test report. 31
6 Thermal performance testing of fluid heating collectors . 31
6.1 Glazed solar liquid heating collectors under steady state conditions (including pressure
drop). 32
6.1.1 Collector mounting and location. 32
6.1.2 Instrumentation. 33
6.1.3 Test installation. 39
6.1.4 Outdoor steady-state performance test . 42
6.1.5 Steady-state efficiency test using a solar irradiance simulator . 46
6.1.6 Determination of the effective thermal capacity and the time constant of a collector. 49
6.1.7 Collector incidence angle modifier. 51
6.1.8 Determination of the pressure drop across a collector. 54
6.2 Thermal performance testing of air heating collectors . 54
6.2.1 Collector mounting and location. 54
6.2.2 Instrumentation. 56
6.2.3 Test installation. 59
6.2.4 Outdoor steady-state efficiency test. 62
6.2.5 Steady-state efficiency test using a solar irradiance simulator . 68
6.2.6 Determination of the effective thermal capacity and the time constant of a collector. 71
6.2.7 Incidence angle modifier. 72
6.2.8 Determination of the pressure drop across a collector. 76
6.3 Unglazed solar collectors under steady state conditions (including pressure drop). 77
6.3.1 Collector mounting and location. 77
6.3.2 Instrumentation. 78
6.3.3 Test installation. 81
6.3.4 Outdoor steady state efficiency test. 81
6.3.5 Steady-state efficiency test using a solar irradiance simulator . 85
6.3.6 Determination of the effective thermal capacity and the time constant of a collector. 87
6.3.7 Incidence angle modifier (optional) . 87
6.3.8 Determination of the pressure drop across a collector. 89
6.4 Glazed and unglazed solar collectors under quasi-dynamic conditions. 89
6.4.1 Collector mounting and location. 89
6.4.2 Instrumentation. 90
6.4.3 Test installation. 92
6.4.4 Outdoor efficiency test. 92
6.4.5 Determination of the effective thermal capacity. 100
6.4.6 Collector incidence angle modifier. 100
Annex A (normative) Schematics for durability and reliability tests. 102
Annex B (normative) Durability and reliability test report sheets. 110
B.1 Record of test sequence and summary of main results. 110
B.2 Internal pressure test for inorganic absorbers. 111
B.2.1 Technical details of collector . 111
B.2.2 Test conditions . 111
B.2.3 Test results. 111
B.3 Internal pressure test for absorbers made of organic materials . 112
B.3.1 Technical details of collector . 112
B.3.2 Test conditions . 112
B.3.3 Test results. 113
B.4 High-temperature resistance test and determination of stagnation temperature . 114
B.4.1 Method used to heat collectors. 114
B.4.2 Method used for determination of stagnation temperature . 114
B.4.3 Test conditions . 114
iv © ISO 2011 – All rights reserved
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oSIST prEN ISO 9806:2012
ISO/DIS 9806
B.4.4 Results from determination of stagnation temperature.114
B.4.5 Results from high temperature resistance test.114
B.5 Exposure test.115
B.5.1 Test conditions .115
B.5.2 Test results .115
B.5.3 Climatic conditions for all days during the test .116
B.5.4 Time periods in which irradiance and surrounding air temperature have values greater
than those specified in Table 3 .117
B.5.5 Inspection results.118
B.6 External thermal shock test: .119
B.6.1 Test conditions .119
B.6.2 Test results .119
B.7 Internal thermal shock test: .120
B.7.1 Test conditions .120
B.7.2 Test results .121
B.8 Rain penetration test.122
B.8.1 Test conditions .122
B.8.2 Test results .122
B.9 Freeze resistance test.123
B.9.1 Collector type.123
B.9.2 Test conditions .123
B.9.3 Test results .124
B.10 Mechanical load test .125
B.10.1 Positive pressure test of the collector cover .125
B.10.2 Negative pressure test of fixings between the cover and the collector box.126
B.10.3 Negative pressure test of collector mountings.127
B.11 Impact resistance test using steel balls.128
B.11.1 Test conditions .128
B.11.2 Test results .128
B.12 Impact resistance test using ice balls.129
B.12.1 Test conditions .129
B.12.2 Test results .129
B.13 Final inspection results .130
Annex C (normative) Stagnation temperature of liquid heating collectors .131
C.1 General.131
C.2 Measurement and extrapolation of stagnation temperature.132
Annex D (normative) Performance test report for glazed liquid heating solar collectors .134
D.1 General.134
D.2 Solar collector description .134
D.3 Test results.136
Annex E (normative) Performance test report for unglazed liquid heating solar collectors .139
E.1 General.139
E.2 Solar collector description .139
E.3 Test results .141
Annex F (informative) Performance test report for solar air heating collectors .144
F.1 General .144
F.2 Solar collector description .144
F.3 Tes
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