أ.د محمد صلاب حمزة شندوخ
  • Enhancement the Output Power from Solar Cell Using Lens
  • Abstract- In this work, a hemispherical lens was used as a solar concentrator to concentrate solar light components (direct normal and diffused direct normal radiation) on the solar cell to increase the electrical output power from the solar cell. Optical properties of the hemispherical lens, electrical parameters of the polycrystalline Si-Solar cell, solar radiation components (direct normal and diffused direct normal radiation) with and without a lens, and output power from used a solar cell with and without lens were measured. Some conclusions are obtained; the hemispherical lens was used practically to concentrate sunlight components on solar cell where the concentration was found to be about 2x solar light components, the used hemispherical lens was found to increase the electrical output power from the solar cell about 25 % for direct normal plus diffused solar light intensity which relates to the action of used hemispherical lens and properties of the used solar cell.