King Saud University

Qudra Energy Company

Yousef Abdullah Almotlaq

Mazen Abdullah Baabbad

Hany Abdulrahman Alansary

Essam Abdulaziz Al Ammar

The solar heating apparatus has a base box and a main axle mounted on the base box. At least one mirror support arm is mounted orthogonal to the main axle and supports a plurality of mirrors. In a first embodiment, a circular plate on the side of the base box rotates the main axle to bank the mirrors to track azimuth and a belt or chain drive rotates the mirror support arms to track elevation. In a second embodiment, the main axle is a beam mounted on a rotating circular plate on top of the base box to track azimuth and bevel gears drive a belt or chain drive that rotates the mirror support arms to track elevation. In a third embodiment, the mirror support arms are driven to rotate by bevel gears and the main axle through belt or chain drives.

Solar heating apparatus

The solar heating apparatus includes driven and controllable reflectors for concentrating solar radiation on a solar tower or the like. Each of the reflectors provided in an array of reflectors is selectively driven to rotate about multiple axes of rotation. A plurality of groupings of optical reflectors, such as mirrors or the like, are mounted about a single, common longitudinally extending shaft, providing simultaneous rotation of the optical reflectors about a longitudinal axis. Through a two-axis bearing associated with each grouping of optical reflectors, the optical reflectors are also mounted on a laterally extending shaft associated with each individual reflector grouping. The laterally extending shafts are linked, each to the other, by a continuous belt or the like, providing selective simultaneous rotation of the optical reflectors about the lateral axis in addition to the simultaneous rotation about the longitudinal axis.

The solar heating apparatus includes at least one optical element and a drive assembly for selectively moving the at least one optical element along multiple axes of rotation, the drive assembly having an elevation shaft and an azimuth rotation shaft. The solar heating apparatus also includes a support frame positioned in communicating relation with the drive assembly, the support frame being configured for supporting the at least one optical element. The support frame includes a main shaft, at least one branch holder pivotally attached to an end of the main shaft, the at least one branch holder being adapted for supporting the at least one optical element, and at least one belt drive for pivoting the at least one branch holder, the at least one belt drive being actuated by the elevation shaft.

The solar cooling and water desalination system is a roof-mounted system having a refrigeration unit driven by electricity produced by solar panels to chill water, which is stored in a first tank and used to cool living spaces. Seawater is preheated in a first heat exchanger by waste heat from operation of the refrigeration unit, and heated further in a second heat exchanger by hot distilled water. A field of solar collectors heats oil, which is stored in a hot oil tank and then powers a first boiler to produce high pressure and temperature steam for a steam ejector vacuum system connected to a desalination water boiler that desalinates the seawater, which is condensed by a condenser and stored in a distilled water tank, where it is stored at about 80&#xb0; C.

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Riyadh, Saudi Arabia

Yousef Abdullah Almotlaq