المملكة: "Al-Haramain Care" It operates the largest cooling systems to enrich the pilgrims’ experience
The General Authority for the Affairs of the Grand Mosque and the Prophet’s Mosque continues to enhance its operational and technical systems by harnessing the latest global solutions. To provide a comfortable and safe environment for the guests of God inside the Two Holy Mosques and their courtyards, keeping pace with the high intensity of this year’s Hajj season 1447 AH and enhancing the quality of the devotional experience.
Giant cooling systems
The Grand Mosque witnesses the operation of one of the largest Coolingin the world with a total capacity of 155 thousand tons of refrigeration, distributed between two stations "Levantine" With 120 thousand tons, and"Ajyad" With 35 thousand tons.
This system depends on cooling the water to temperatures ranging between 4 and 5 degrees Celsius before pumping it through an integrated network to the air handling units in the mechanical rooms in which the heat exchange process takes place, and then the fresh, cooled air is pushed to all parts of the Grand Mosque. Air handling units were renovated and developed and all heat exchangers were replaced with new ones, in addition to changing air purification filters periodically to maintain stable temperatures between 22 and 24 degrees Celsius.
This process is managed through 77 accurately distributed thermal sensors that respond to changes in human density, especially during peak times, in addition to advanced air purification systems with an efficiency of up to 95% supported by continuous preventive maintenance programs to ensure operational sustainability.
In the Prophet’s Mosque, a central cooling station is operating, considered one of the largest in the world. It is located 7 kilometers west of the mosque and includes 6 refrigeration units with a capacity of 3,400 tons per unit, in addition to 7 main pumps for pumping chilled water through an insulated pipe network. This system covers 2,357 columns and 550 air conditioning units, ensuring a balanced and effective distribution of cooled air while increasing operational capacity during the Ramadan and Hajj seasons.
Managing crowd movement with high efficiency
In terms of facilitating movement, the Grand Mosque relies on an advanced system that includes 224 escalators and 22 elevators, capable of serving more than 200,000 pilgrims per hour, which contributes to achieving smooth movement between the different floors.
The Prophet’s Mosque also provides 180 escalators and 25 elevators, all of which are subject to precise operating and maintenance programs in accordance with the highest safety standards, with maintenance work being carried out during periods of low density to ensure continuity of service without delay. Impact on the movement of worshipers.
Smart lighting enhances comfort and safety
Systems have witnessed Lightingin the Two Holy Mosques has developed qualitatively. The Grand Mosque contains more than 120,000 lighting units and 6,900 chandeliers, while the Prophet’s Mosque contains more than 137,000 uniform-colored LED units. These systems are managed through the Building Management System (BMS), which allows intelligent control of the intensity of Lightingaccording to prayer times and intensity, with the use of internal indirect lighting to enhance the spiritual atmosphere, and high-intensity lighting in the courtyard and the Masaa courtyard to ensure clarity of vision and safety of movement.
Intelligent operation and advanced sustainability
The authority relies on central command and control rooms to monitor all systems in real time, including temperatures, electrical power supply, and operational reports. It also uses data analysis techniques to predict malfunctions before they occur, which enhances operating efficiency and reduces energy and water consumption within environmental sustainability trends, and in a way that achieves comfort and safety throughout the Hajj season.
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