Nowadays, consumption of renewable energies such as solar energies is increasing.
Electricity in solar systems is produced using either photovoltaics or concentrated solar
power (CSP) systems. Therefore, concentrating technologies are key parts of CSP systems.
The lower cost of linear Fresnel collectors makes them attractive for electricity production
and thermal energy applications. However, due to partly losing the reflected rays, their
optical efficiency is low. By installing a secondary reflector above the absorber tube of …