Imam Mohammad Ibn Saud Islamic University

Omar Eid Almutairi

Aissa Rezzoug

Diyar Khan

Nadir Murtaza

Rashid Khan

The Four Sides Sub-Wet Bulb Cell (4SSBC) is an innovative evaporative cooling system designed for outdoor environments, particularly in dry and hot regions. Unlike conventional indirect evaporative cooling systems, which typically rely on two-sided heat exchange, the 4SSBC introduces a four-sided heat exchange process. This unique configuration significantly enhances cooling efficiency while reducing water consumption. The 4SSBC utilizes porous materials, including ceramics and synthetic media, for optimized heat and mass transfer. Furthermore, the 4SSBC is designed to be integrated into decorative cooling structures for recreational outdoor spaces, providing a more comfortable environment for occupants. The system ensures that fresh air is produced without excessive humidity, offering a sustainable and efficient solution for outdoor comfort in recreational areas during night time.

Indirect evaporative cooling and four sides sub-wet bulb cell (4SSBC) for outdoor evaporative cooling structures

A well rescue and support system includes a controller having a processor with program instructions, a compressed gas output valve and a dashboard having a screen and a keypad. A compressed air tank with a regulator connects to the output valve, and a well cap fills a well opening. An extendable tube fluidly connects to the compressed air tank through the output valve. At least one retaining balloon disposed around the extendable tube inflates within the well to apply wall pressure. A communication head with a microphone, a camera, a control wire, and a speaker attach to a balloon end of the extendable tube, connecting to the processor and dashboard through a coaxial cable inside the extendable tube. The processor delivers inflation/deflation signals to balloon valves to control target volumes of the retaining balloons for preventing well collapse during rescue operations.

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Riyadh, Saudi Arabia

Omar Eid Almutairi