Mirrors of dynamic curvature for linear solar concentrators

Gang Xiao (1)

1 JAD - Laboratoire Jean Alexandre Dieudonné

The linear Fresnel reflector solar technology suffers from the lack of optical precision, due to the dynamic change of optical distance brought about by the rotation of the mirror strips. We propose a simple method to produce mirror strips with dynamic curvature of high precision, which can be used to significantly enhance the optical concentration efficiency of linear Fresnel reflector solar concentrators. The basic idea is to create a dynamically modifiable depression behind the mirror, that curves the mirror through the elastic deflection of the mirror's substrate.

Mots clés: solar concentrator; linear Fresnel reflector; elastic deflection; dynamic curvature

Domaines: Autre

Gang Xiao. Mirrors of dynamic curvature for linear solar concentrators. 2012. ⟨hal-00675220⟩