E:\Useful-Docs\_New articles\Armstrong-2010-Optimal PV angle under cloudy.pdf
PURPOSE AND SCOPE
The purpose of this guide is to form a complement to the EN 12975 standard, focusing on part 2 related to testing of solar thermal collectors. It is intended to support in the interpretation and application of the standard. The guide has been developed with two different target groups and objectives in mind.
1. A guide directed to established and new test laboratories for collector testing. The main purpose here is to give a quick introduction to the standard for new laboratories and in general to contribute to a uniform interpretation of the standard and presentation of results. These parts are mainly covered in sections 2- 8.
2. A guide directed to manufacturers and importers of collectors. Here, the purpose is to give a very light introduction to the standard and to explain how it is used for type testing as well as for innovation and development support. These target groups are mainly addressed in section 0 of this guide, where tests that can easily be carried out by e.g. manufacturers themselves are also briefly explained.
In addition to this guide a small informative brochure has also been developed and is available as a PDF as well as in a printed version.
During the writing of this guide, the EN 12975:2006 is currently under revision and some significant changes are expected in the new version planned for 2012/ 2013. As these changes cannot be predicted at present this guide is based on the 2006 version of the standard. However significant changes that are most likely to be part of the next version of the standard are indicated as far as possible.
Please note that the only official document in this context is the standard itself. For up to date detailed information always refer to the latest version of the full standard. |