Arab News Headlines

A Glimpse into 436 Mist Fans Cooling Atmosphere for Visitors at the Prophet’s Mosque

Madinah: The mist fans installed throughout the Prophet’s Mosque play a crucial role in cooling the sweltering atmosphere for visitors in the courtyards and the area designated for individuals observing itikaf (staying at the mosque).

A total of 436 mist fans, operating according to a specific mechanism, are responsible for handling the cooling requirements of the Prophet’s Mosque, making it one of the largest cooling projects globally.

These fans are strategically placed on the columns of 250 large umbrellas, with each fan featuring 16 water spray apertures. The design ensures that water does not fall when the system is turned off.

Each fan boasts a diameter of 80 cm and a width of 38 cm, capable of rotating 180 degrees and completing a full cycle in just 31 seconds. Equipped with seven blades, the fans weigh approximately 120 kg and are positioned at a height of 3.5 meters.

The objective of this system is to cool down the temperature in the courtyards of the Prophet’s Mosque by extracting heat from the
surrounding air.

To sustain the system, a water supply of 200 liters per hour is required at each column.

This demand is met through two water purification stations equipped with microfilters located at the base of each column. Ultraviolet rays are also employed to eliminate bacteria, salts, and other impurities, ensuring the spray water’s quality.

The meticulous process safeguards the health of the worshipers while maintaining the system’s longevity through a network of pipes spanning around 3,200 meters.

Source: Saudi Press Agency