KTB Nr. 2006-35-kj-en Collector test according to EN 12975-1,2:2006

Contents
1 Summary 5
1.1 Preliminary remark . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Collector efficiency parameters determined . . . . . . . . . . . . . . 5
1.3 Incidence angle modifier - IAM . . . . . . . . . . . . . . . . . . . . . 5
1.4 Pressure drop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.5 Effective thermal capacity of the collector . . . . . . . . . . . . . . . 6
1.6 Schedule of tests and callculations . . . . . . . . . . . . . . . . . . . 6
1.7 Summary statement . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Test Center 7
3 Orderer, Expeller, Manufacturer 7
4 Overview of series Collettore Solare Piano CP 8
5 Description of the Collector 8
5.1 Specific data of the smallest collector of the series Collettore Solare
Piano CP4M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.2 Specific data of the smallest collector of the series Collettore Solare
Piano CP2M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.3 Specific data of the largest collector of the series Collettore Solare
Piano CP4XL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.4 Specific data of the largest collector of the series Collettore Solare
Piano CP2XL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.5 Absorber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.6 Insulation and Casing . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.7 Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.8 Kind of mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.9 Picture and cut drawing of the collector . . . . . . . . . . . . . . . . . 12
6 Collector efficiency parameters 13
6.1 Test method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.2 Description of the calculation . . . . . . . . . . . . . . . . . . . . . . 13
6.3 Steady stade efficiency parameters based on the aparture area and
fluid mean temperature . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.4 Power output per collector unit . . . . . . . . . . . . . . . . . . . . . 15
KTB Nr. 2006-35-k-j-en : Collector test according to EN 12975-1,2:2006
IMMERGAS S.p.A. , Series Collettore Solare Piano CP4M and Collettore Solare Piano CP2M
04.07.2007, Fraunhofer-ISE, Heidenhofstraße 2, D-79110 Freiburg
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