For the first time in sports history, the World Cup takes place between November and December due to the red hot climate in Qatar in summer season. The average average temperature reaches 50°C in June and July while it is around 20-30°C in winter. Although this temperature is considered mild, a further developed air conditioning will be required in the World Cup stadiums.
In 2011, British company Arup introduced a cooling system called Qatar Showcase that uses solar panels to generate energy. It distributed the cooled air thorough seats made of perforated material. However, the air conditioning in the World Cup stadiums needed further development. So, Dr. Saud Ghani (aka Dr. Cool), professor of Mechanical Engineering at Qatar University, introduced a new air conditioning technology in 2022. First, he aerodynamically designed prototypes to minimize hot air entrance. Several 3D models were tested by using color lazer and smoke to analyze the airflow. The dark façades of the stadiums were also painted to a lighter color which helped cooling the stadiums 5°C more.
The end product blows cool air from the grills under the seats on the ankle height and nozzles on the pitch. Dr. Cool states that this system of air-conditioning in the World Cup stadiums does not only cool the air, but also purifies it. For example, the spectators with allergies will not have inspiratory problems inside the stadiums.