SIST EN 12975-1:2006+A1:2011
(Main)Thermal solar systems and components - Solar collectors - Part 1: General requirements
Thermal solar systems and components - Solar collectors - Part 1: General requirements
This European Standard specifies requirements on durability (including mechanical strength), reliability and safety for liquid heating solar collectors. It also includes provisions for evaluation of conformity to these requirements. It 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. It is basically applicable to concentrating collectors; thermal performance testing as given in EN 12975-2:2006, 6.3. (quasi dynamic testing) is also applicable to most concentrating collector designs, from stationary non-imaging concentrators as CPCs to high concentrating tracking designs. Collectors that are custom-built (built in, roof integrated collectors that do not comprise factory made modules and are assembled directly on the place of installation) cannot be tested in their actual form for durability, reliability and thermal performance according to this standard. Instead, a module with the same structure as the ready collector is tested. The module gross area in the case of custom built collectors should be at least 2 m2. The test is valid only for larger collectors, than the tested module. For collectors the national and European Guidelines for Structural Planning and overhead glazing are not valid. Therefore this standard should be applied for the design of the static of the collector.
Thermische Solaranlagen und ihre Bauteile - Kollektoren - Teil 1: Allgemeine Anforderungen
Diese Europäische Norm legt für Flüssigkeitskollektoren Anforderungen hinsichtlich der Dauerhaftigkeit (einschließlich der mechanischen Festigkeit), der Zuverlässigkeit und Sicherheit fest. Sie enthält auch Vorgaben, um die Konformität mit diesen Anforderungen zu bewerten. Die Norm ist nicht auf Kollektoren anwendbar, bei denen der Wärmespeicher in einem solchen Maße in den Kollektor integriert ist, dass bei der Durchführung von Messungen der Prozess im Kollektor vom Prozess der Wärmespeicherung nicht getrennt werden kann. !Die Norm gilt grundsätzlich für konzentrierende Kollektoren; die Prüfung der Wärmeleistung nach EN 12975-2:2006, 6.3, (quasi-dynamische Prüfung) gilt ebenfalls für die meisten Konstruktionen konzentrierender Kollektoren, vom stationären nichtabbildenden Konzentrator als CPC bis zu hoch konzentrierenden nachgeführten Konstruktionen." Kundenspezifische Kollektoren (in der Dacheindeckung integrierte Kollektoren, die keine industriell hergestellten Module enthalten und direkt am Einsatzort zusammengestellt werden) können in ihrer ursprüng-lichen Form in Bezug auf Dauerhaftigkeit, Zuverlässigkeit und Wärmeleistung nicht nach dieser Norm geprüft werden. An ihrer Stelle wird ein Modul geprüft werden, das die gleiche Bauweise wie der fertig montierte Kollektor aufweist. Die Bruttofläche des Moduls sollte mindestens 2 m2 betragen. Die Prüfung ist nur für Kollektoren gültig, die größer sind als das geprüfte Modul. Für Kollektoren gelten nicht die nationalen und europäischen Richtlinien zur Bauplanung und Decken-verglasung. Deshalb sollte die vorliegende Norm zur Bemessung der Kollektorstatik angewendet werden.
Installations solaires thermiques et leurs composants - Capteurs solaires - Partie 1 : Exigences générales
La présente Norme européenne spécifie les exigences de durabilité (y compris la résistance mécanique), de fiabilité et de sécurité pour des capteurs solaires à circulation de liquide. Elle contient également des dispositions pour l'évaluation de la conformité à ces exigences. Elle ne s'applique pas aux capteurs dont le dispositif de stockage thermique fait partie intégrante 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
nécessaires. !Elle s’applique en principe aux capteurs à concentration ; l’essai des performances thermiques décrit dans l’EN 12975-2:2006, paragraphe 6.3. (essai dans des conditions quasi-dynamiques) s’applique aussi à la plupart des types de capteurs à concentration, des capteurs anydoliques fixes tels que les CPC aux capteurs suiveurs à forte concentration." La durabilité, la fiabilité et les performances thermiques des capteurs fabriqués à façon (capteurs intégrés ou incorporés en toiture qui ne sont pas composés de modules fabriqués en usine et qui sont assemblés directement
sur le lieu d'installation) ne peuvent pas, dans la forme actuelle de ces capteurs, être contrôlées conformément
à la présente norme. À leur place, on soumet aux essais un module ayant la même structure que le capteur monté.
Il est recommandé que la superficie hors-tout des modules de capteurs fabriqués à façon soit d'au moins 2 m2.
L’essai n’est valable que pour les capteurs plus grands que le module soumis à l’essai.
Les Directives nationales et européennes relatives à l’étude de structures de bâtiments et à l’utilisation des vitrages
horizontaux ou inclinés ne s’appliquent pas aux capteurs solaires. Il convient donc d’appliquer la présente norme pour
la conception mécanique du capteur
Toplotni sončni sistemi in sestavni deli - Sprejemniki sončne energije - 1. del: Splošne zahteve
Ta evropski standard določa zahteve za vzdržljivost (vključno z mehansko močjo), zanesljivost in varnost za sprejemnike sončne energije s tekočinskim segrevanjem. Prav tako vključuje določbe ugotavljanja skladnosti s temi zahtevami. Ne velja za tiste sprejemnike, v katerih je termalna enota za shranjevanje tak integralni del sprejemnika, da se postopka sprejemanja ne more ločiti od postopka shranjevanja za namene meritev teh dveh postopkov. V osnovi velja za zbiralne sprejemnike; preskušanje termalne zmogljivosti je podano v EN 12975-2:2006, točki 6.3 (navidezno dinamični preskus) velja tudi za večino modelov zbiralnih sprejemnikov, od stacionarnih neslikovnih sprejemnikov, kot so CPS, do visokozmogljivostnih sledilnih zbiralnih modelov. Sprejemniki, ki so narejeni po meri (vgrajeni v streho, ki ne vsebujejo tovarniško narejenih modulov in so montirani neposredno na mestu namestitve), se ne morejo preskušati v njihovi dejanski obliki glede vzdržljivosti, zanesljivosti in termalne zmogljivosti v skladu s tem standardom. Namesto tega se preskuša modul z isto konstrukcijo kot gotov sprejemnik. Bruto površina modula pri po meri narejenega sprejemnika mora biti vsaj 2 m2. Preskus je veljaven le za večje sprejemnike od preskušanega modula. Za sprejemnike ne veljajo nacionalne in evropske smernice za konstrukcijsko projektiranje in nadzemne zasteklitve. Zato ta standard ne sme veljati za projektiranje statike sprejemnika.
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Thermische Solaranlagen und ihre Bauteile - Kollektoren - Teil 1: Allgemeine AnforderungenInstallations solaires thermiques et leurs composants - Capteurs solaires - Partie 1 : Exigences généralesThermal solar systems and components - Solar collectors - Part 1: General requirements27.160Solar energy engineeringICS:Ta slovenski standard je istoveten z:EN 12975-1:2006+A1:2010SIST EN 12975-1:2006+A1:2011en,fr,de01-februar-2011SIST EN 12975-1:2006+A1:2011SLOVENSKI
STANDARD
SIST EN 12975-1:2006+A1:2011
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12975-1:2006+A1
October 2010 ICS 27.160 Supersedes EN 12975-1:2006English Version
Thermal solar systems and components - Solar collectors - Part 1: General requirements
Installations solaires thermiques et leurs composants - Capteurs solaires - Partie 1 : Exigences générales
Thermische Solaranlagen und ihre Bauteile - Kollektoren - Teil 1: Allgemeine Anforderungen This European Standard was approved by CEN on 6 February 2006 and includes Amendment 1 approved by CEN on 7 September 2010.
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, 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12975-1:2006+A1:2010: ESIST EN 12975-1:2006+A1:2011
EN 12975-1:2006+A1:2010 (E) 2 Contents Page Foreword .3 Introduction .4 1 Scope .5 2 Normative references .5 3 Terms and definitions .5 4 Symbols and units .5 5 Durability and reliability .5 5.1 Materials and design .5 5.2 Required tests .6 5.3 Pass criteria .6 5.3.1 General .6 5.3.2 Internal pressure for absorber .7 5.3.3 High temperature resistance .7 5.3.4 Exposure .7 5.3.5 External thermal shock .7 5.3.6 Internal thermal shock .7 5.3.7 Rain penetration.7 5.3.8 Mechanical load test .7 5.3.9 Thermal performance .8 5.3.10 Freeze resistance test .8 5.4 Procedure .8 6 Safety .8 7 Collector identification .8 7.1 Drawings and data sheet .8 7.2 Labelling .9 7.3 Installer instruction manual .9 Annex A (informative) Description of solar collectors materials and manufacture . 10 A.1 General . 10 A.2 Absorbers . 10 A.3 Transparent covers. 11 A.4 Insulation materials . 11 A.5 Reflectors . 11 A.6 Diffusion barriers . 11 Annex B (informative) Environmental protection . 12 B.1 Heat transfer fluid . 12 B.2 Insulation materials . 12 B.3 Recycling of the collector materials . 12 Annex C (informative) Tests to be repeated in collector design modifications . 13 Bibliography . 14
SIST EN 12975-1:2006+A1:2011
EN 12975-1:2006+A1:2010 (E) 3 Foreword This document (EN 12975-1:2006+A1:2010) has been prepared 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 April 2011, and conflicting national standards shall be withdrawn at the latest by April 2011. 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 12975-1:2006". This document includes Amendment 1 approved by CEN on 2010-09-07. The start and finish of text introduced or altered by amendment is indicated in the text by tags !". 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, 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. SIST EN 12975-1:2006+A1:2011
EN 12975-1:2006+A1:2010 (E) 4 Introduction In respect of potential adverse effects on the quality of water intended for human consumption, caused by the product covered by this standard, it is pointed out that: a) This standard provides no information as to whether the product may be used without restriction in any of the Member States of the EU or EFTA;
b) It should be noted that, while awaiting the adoption of verifiable European criteria, existing national regulations concerning the use and/or the characteristics of this product remain in force. SIST EN 12975-1:2006+A1:2011
EN 12975-1:2006+A1:2010 (E) 5 1 Scope This European Standard specifies requirements on durability (including mechanical strength), reliability and safety for liquid heating solar collectors. It also includes provisions for evaluation of conformity to these requirements. It 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. !It is basically applicable to concentrating collectors; thermal performance testing as given in EN 12975-2:2006, 6.3. (quasi dynamic testing) is also applicable to most concentrating collector designs, from stationary non-imaging concentrators as CPCs to high concentrating tracking designs." Collectors that are custom-built (built in, roof integrated collectors that do not comprise factory made modules and are assembled directly on the place of installation) cannot be tested in their actual form for durability, reliability and thermal performance according to this standard. Instead, a module with the same structure as the ready collector is tested. The module gross area in the case of custom built collectors should be at least 2 m2. The test is valid only for larger collectors, than the tested module. For collectors the national and European Guidelines for Structural Planning and overhead glazing are not valid. Therefore this standard should be applied for the design of the static of the collector. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 12975-2:2006, Thermal solar systems and components – Solar collectors – Part 2: Test methods EN ISO 9488, Solar energy – Vocabulary (ISO 9488:1999) 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN ISO 9488 apply. 4 Symbols and units For the purposes of this European Standard, the symbols and units given in EN ISO 9488 and
EN 12975-2:2006 apply. 5
Durability and reliability 5.1
Materials and design Information about the materials and manufacture of solar collectors, including the materials they are manufactured of and their resistance to all influences which they might meet in service, retaining their operational ability are given in Annex A. SIST EN 12975-1:2006+A1:2011
EN 12975-1:2006+A1:2010 (E) 6 5.2 Required tests The collector shall be subjected to the following series of tests: a) Internal pressure for absorber (see 5.2 of EN 12975-2:2006); b) High temperature resistance (see 5.3 of EN 12975-2:2006); c) Exposure (see 5.4 of EN 12975-2:2006); d) External thermal shock. May be combined with the high temperature resistance or exposure test (see 5.5 of EN 12975-2:2006); e) Internal thermal shock. May be combined with the high temperature resistance or exposure test (see 5.6 of EN 12975-2:2006);
f) Rain penetration, only for glazed collectors (see 5.7 of EN 12975-2:2006); g) Mechanical load (see 5.9 of EN 12975-2:2006); h) Thermal performance (see Clause 6 of EN 12975-2:2006); i) Freeze resistance, only in the cases specified in 5.8 of EN 12975-2:2006; j) Stagnation temperature (see Annex C of EN 12975-2:2006). May be combined with the high temperature resistance or exposure test. k) Final inspection (see 5.11 of EN 12975-2:2006). The optional test for impact resistance (see 5.10 of EN 12975-2:2006) shall be carried out if requested. The result shall be recorded.
NOTE Regarding the durability and reliability of elastic materials it is recommended to refer to ISO 9808 and ISO 9553. 5.3 Pass criteria 5.3.1 General The pass criteria for the reliability tests are given for each test in 5.3.2 to 5.3.10. The term "no major failure", denotes that none of the following occurs: - Absorber leakage or such deformation that permanent contact between absorber and cover is established; - Breaking or permanent deformation of cover or cover fixing; - Breaking or permanent deformation of collector fixing points or collector box; - Vacuum loss, such that vacuum or subatmospheric collectors shall be classified according to the definition in EN ISO 9488 (only applicable for vacuum and subatmospheric collectors); - Accumulation of humidity in form of condensate on the inside of the transparent cover of the collector exceeding 10 % of the aperture area.
SIST EN 12975-1:2006+A1:2011
EN 12975-1:2006+A1:2010 (E) 7 NOTE The evaluation of accumulation of humidity for application of the pass criteria should be applied only on the following tests :
- external Thermal Shock - Rain Penetration Test 5.3.2 Internal pressure for absorber The test pressure shall be as specified in 5.2 of EN 12975-2:2006. In the case of absorbers made of organic materials, climate conditions according to Table 2 of EN 12975-2:2006 shall be applied. After the internal pressure test, the collector shall not show any major failure as defined in 5.3.1. 5.3.3 High temperature resistance When tested in accordance with 5.3 of EN 12975-2:2006, the collector shall not show any major failure as defined in 5.3.1. 5.3.4 Exposure When tested in accordance with 5.4 of EN 12975-2:2006, the collector shall not show any major failure according to 5.3.1 and none of each potential problems of their components shall be graded 2 on the scale given in B.5.5 of EN 12975-2:2006. 5.3.5 External thermal shock When tested in accordance with 5.5 of EN 12975-2:2006, the collector shall not show any major failure as defined in 5.3.1. 5.3.6 Internal thermal shock When tested in accordance with 5.6 of EN 12975-2:2006, the collector shall not show any major failure as defined in 5.3.1. 5.3.7 Rain penetration NOTE This test is applicable only for glazed collectors. A visual check shall not show any water trace. Moreover, at least one of the following shall be fulfilled: a
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