Fault on concentrated Hoval Ultrasol 2 1V (STC) Real Measurements in Switzerland

Measurements of concentrated Hoval Ultrasol 2 1V (STC) with faults

Datasheet of the Hoval STC (here).

These measurements have taken place in Granges, Valais, Switzerland in longitude: 7.4649965° and latitude: 46.2647793° with three flat mirrors that concentrated the sun's reflection on one STC. Faults have been introduced into the installation. 

The STC and each mirror length (L) : 1m

The distance between the mirrors (D) : 1.5m

The distance between the mirrors and STC : 10m

From the 11 march to the 17 march, the mirrors were slighty dirty (see image here).

From the 18 march to the 24 march, the mirrors were totally dirty (see image here).

From the 25 march to the 15 april, the position of the mirrors had an offset of 1.5° (see the results of the offset in this image)

From the 16 april to the 21 april, the position of the mirrors had an offset of 2.3° (see the results of the offset in this image)

From the 22 april to the 24 april, the pump flow were reduced.