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Erschienen in:
2016 | OriginalPaper | Buchkapitel
3. Standards and Testing
verfasst von : Gianluca Coccia, Giovanni Di Nicola, Alejandro Hidalgo
Erschienen in: Parabolic Trough Collector Prototypes for Low-Temperature Process Heat
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Abstract
The performance of solar thermal collectors such as PTCs can be assessed by performing specific procedures described in standards. Standards generally followed in the solar energy field are the ISO 9806, the ANSI/ASHRAE 93 and the EN 12975-1, which will be presented in this chapter. The measurements and the procedures required for testing PTCs will be discussed in detail, in particular focusing the attention on the three most important parameters of a solar collector: the time constant, the thermal efficiency and the incident angle modifier. Due to its importance, uncertainty in thermal efficiency testing will be described extensively. Also, quality test methods will be briefly discussed.