An international research group has developed an active cooling technique for solar panels that utilizes an inclined channel and two jets of nanofluids.

The system consists of a double jet of nanofluid in a 2D channel placed below a heating plate that adheres to the photovoltaic panel. The two jets enter the channel through two slots of width separated by a distance and are perpendicular to the active wall of the channel.

“The cooling system is an inclined channel, with an isothermal heated upper wall, subjected to two jets of nanofluid,” the scientists said, adding that the device uses water mixed with copper nanoparticles as a nanofluid.

“The channel presents an inclination, with the horizontal direction, denoted by angle and whose limit is chosen equal to 30 degrees.This value corresponds to the optimal angle that corresponds to the maximum absorption of the solar radiations by a photovoltaic panel in Tunisia,” they added.

In the proposed system configuration, the channel is heated by its upper wall and cooled by two jets of nanofluids penetrating through its lower wall.