Our well-being depends largely on the quality of the air that is inside the building in which we live. During the design of the ventilation system must take into account many factors, such as: air direction of movement relative to the ventilated room, the difference in pressure inside and outside the building.
As is the case with an unusual structure, which is the Burj Khalifa in Dubai – the highest skyscraper in the world (829,66 m)?
Cooling the interior of a skyscraper is quite a challenge. For this purpose, were constructed huge air conditioning system, which in the peak, needs approx. 10 000 t of ice. The water provides a daily average of 946 000 l of water to 169 floors, where the 34 km flow pipes chilled water for air conditioning. Built stations, desalination and cooling water, by means of a contrite and partially melted ice. By this solution, the building reaches water with temperature 3,3 ‘C. This water and the fan system, will serve to cool the air, which on the outside, in the hottest months, up to 50’ C. Due to the high humidity, the temperature difference inside and outside the Burj Khalifa, causing subsidence of water vapor, dangerous, including for electrical equipment. Created so unique system, whose main task is to collect water and drain it into underground reservoirs – a day goes there, more than 150 000 l of water, recovered from the air, which annually produces 50 million liters (volume of 20 Olympic swimming pools). Water, which arises on the walls of the building (due to temperature differences) is collected and sufficient to maintain the park around the object.
In addition, every 25 floors located special rooms, hermetically sealed, air-conditioned in the event of fire. The temperature difference between the ground, and the peak is 6 ‘C.
Burj Khalifa will soon lose its leading position in favor of the building, whose construction is to be completed in the 2018/2019 year. Talking about Jeddah Tower (formerly the Kingdom Tower), the planned height is expected to reach at least 1,007 m (investor suppressed exact value).
