The Scientific World Journal / 2014 / Article / Tab 1

Research Article

The Application of Thermal Solar Energy to High Temperature Processes: Case Study of the Synthesis of Alumina from Boehmite

Table 1

Fresnel lens specifications.

Diameter (mm)889
Surface (m2)0.8
Thickness (mm)3.17
Grooves (mm)50 in 25
Focal distance (mm)757
Circular focus diameter (mm)8
Power density (W·cm−2)260
Solar radiation concentration2644 times
Refractive index 1.49
Transmission (%)92

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