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The following are publications developed under Task 43:

General Task Publications

Utilisation of ISO9806:2013 in Global Solar Certification
November 2014 - PDF 0.72MB - Posted: 2015-06-08
By: K I Guthrie, L T Guthrie and J Osborne
ISO 9806 Solar energy - Solar thermal collectors - Test methods, the international standard for testing solar thermal collectors, was first published in 1994. Since that time there have been advances in technology, resulting in a need for the standard to be updated. This update was completed in 2013. The thirty three member nations of the European Committee for Standardisation (CEN) have adopted ISO 9806:2013. This study investigates the likelihood that ISO 9806:2013 will be adopted in other countries around the world. To determine this, a survey which received 63 responses from 30 countries was conducted. Respondents were asked how likely their countries were to adopt the standard and what, if any changes could be made to the standard to improve it. Sixteen countries outside of the CEN membership were identified as having reasonably large solar market size and were targeted by this study as they are large contributors to the world’s solar market. Responses were received from thirteen of these countries, many of which suggested alterations to ISO 9806 in order to increase the likelihood of adoption in their country. These results will be used to inform the next revision of ISO 9806.

Subtasks

Subtask A: Collectors

Subtask A: Final Report Presentation to ExCo June 14, 2013
June 2013 - PDF 0.41MB - Posted: 2013-07-12
By: Les Nelson, IAPMO

Subtask A; Roadmap of Collector Testing and Certification Issues
June 2013 - PDF 1.48MB - Posted: 2013-07-12
By: Enric Mateu Serrats, CENER
The testing and characterization of solar thermal collectors and components have been investigated from the inception of the IEA Solar Heating & Cooling Programme. Performance test procedures and characterization equations were originally developed for typical solar collector types under well-defined standard test conditions. In addition, hort-term tests were developed to predict the long-term durability of standard collectors and systems. Presently, national and international testing laboratories in many IEA participant countries use these test procedures and characterization equations in order to determine a solar thermal product’s performance and compliance with required safety and reliability standards. Based on the test certificates issued by accepted test laboratories the products are certified by certification bodies. In order to assess and compare solar thermal products, appropriate procedures are required. These procedures should account for aspects like thermal performance, safety and durability issues.

Subtask A; White Paper on Low-to-Medium Temperature Collectors
May 2013 - PDF 1MB - Posted: 2013-07-12
By: Korbinian Kramer, Fraunhofer ISE; Stephan Fischer, ITW; Peter Kovacs, SP
Editor: Les Nelson, IAPMO
From 2010 through 2012, under the auspices of the EU-funded QAiST (Quality Assurance in Solar Thermal Heating and Cooling Technology) project, 12 laboratories participated in a proficiency test designed to identify the repeatability and conformity of solar testing laboratories results. One part of this effort involved low to medium temperature solar collector testing. The results of this work form an important part of the Task 43 work as it relates in international harmonization, in that examining the accuracy and repeatability of solar collector tests, as well as identifying problem areas, will lead to a good basis for harmonization.

Annex 1 to White Paper on Low-to-Medium Temperature Collectors
PDF 4.2MB

Subtask A; White Paper on Solar Air Heating Collectors
May 2013 - PDF 1.41MB - Posted: 2013-07-12
By: Korbinian Kramer, ISE
Editor: Les Nelson, IAPMO
Although solar air heating collectors have some significant advantages in comparison to liquid heating collectors, currently they have a market share of less than 1% (Weiss, Bergmann et al. 2009) of the global solar collector market. The main advantages of using air as heat transfer medium are the absence of stagnation and freezing problems and a reduced tightness requirement. For instance, this makes it easier to integrate solar air heating collectors into façades. Commercially available air heating collector types range from unglazed collectors for space heating support at low temperatures, to high performance evacuated tube collectors with high efficiencies at increased temperatures. An important barrier for a broader use of solar air heating collectors is the lack of common standards for testing to ascertain quality and performance. The Fraunhofer Institute for Solar Energy Systems ISE is currently working on the development of testing standards for glazed and unglazed air collectors, the development of simulation tools to calculate solar gains of solar air heating systems as well as the improvement of solar air heating collector technology. This work is done in co-operation with industry within the project ‘Luko-E’, which is co-funded by the German ministry for the environment.

Subtask A; White Paper on Concentrating Collectors
May 2013 - PDF 5.02MB - Posted: 2013-07-12
By: Stephan Fischer, ITW; Peter Kovacs, SP; Carsten Lampe, ISFH; Enric Mateu Serrats, CENER
Editor: Les Nelson, IAPMO
This report summarizes the work carried out in the field of concentrating and tracking solar thermal collectors. The goal of this work was the introduction and validation of a test method capable of treating concentrating as well as concentrating/tracking collectors with the same accuracy as the current standard treats flat plate and evacuated tubular collectors.

Other

Highlights

Task 43: Highlights 2015
April 2016 - PDF 0.25MB - Posted: 2016-04-27
Performance test procedures and characterization equations were originally developed for typical solar collector types under well-defined standard test conditions. In addition, short-term tests were developed to predict the long-term durability of standard collectors and systems. Presently, national and international test laboratories in many IEA participant countries use these test procedures and characterization equations in order to determine a solar thermal product's performance and compliance with required safety and reliability standards. While there is a solid common foundation for most test procedures, certification bodies for Europe, North America, Australia, China and Europe and the laboratories that they work with have diverged in how tests are implemented in some areas, and the introduction of new products have introduced new challenges that are not always addressed in the same way.

Task 43 Highlights 2014
February 2015 - PDF 0.31MB - Posted: 2015-02-20
Performance test procedures and characterization equations were originally developed for typical solar collector types under well-defined standard test conditions. In addition, short-term tests were developed to predict the long-term durability of standard collectors and systems. Presently, national and international test laboratories in many IEA participant countries use these test procedures and characterization equations in order to determine a solar thermal product's performance and compliance with required safety and reliability standards. While there is a solid common foundation for most test procedures, certification bodies for Europe, North America, Australia, China and Europe and the laboratories that they work with have diverged in how tests are implemented in some areas, and the introduction of new products have introduced new challenges that are not always addressed in the same way.