King Fahd University of Petroleum and Minerals

Syed Ahmed M Said

Najam Ul Qadir

Shakeel Ahmed

Rached Ben Mansour

A solar-powered two-bed adsorption chiller which can operate after sunset when the solar radiation intensity becomes zero. Rechargeable solar-powered batteries (SPBs) are connected to a flat-plate solar collector (FPSC). The photoelectric charges are directed from FPSC to a solar charge controller (SCC) which acts as a charge amplifier thus magnifying the total charge before it is finally collected inside the SPB for future use. The SPB is in turn connected to a resistance heating wire (RHW) which is immersed inside the HWST.

Solar-powered adsorption chiller operable in the absence of sunlight

The metal organic framework adsorbent for solar adsorption refrigeration is a nanocomposite made from a metal organic framework matrix having carbon nanotubes incorporated therein. Preferably, the metal organic framework is composed of MIL-100(Fe), and the carbon nanotubes are functionalized with carboxyl (COOH) groups. In order to prepare the metal organic framework adsorbent, carbon nanotubes functionalized with carboxyl (COOH) groups are first added to an aqueous solution of a precursor salt, such as ferric trinitrate nonahydrate (Fe(NO).9HO), to form a first mixture. The first mixture is then sonicated and a 1,3,5 benzenetricarboxylic acid ligand is added thereto to form a second mixture. The second mixture is then sonicated and heated, and the metal organic framework nanocomposite is separated therefrom, preferably as a powder.

Growing community of inventors

Dhahran, Saudi Arabia

Syed Ahmed M Said