Professor Dr. Saud Abdul-Aziz Abdul-Ghani of Qatar University first created solar cooling helmets for all workers, and then developed outdoor air-conditioning systems in seven of the eight stadiums of the 2022 FIFA World Cup. -Saint-Dipday
Qatar is fast becoming the hottest place on earth for many reasons, including but not limited to its proximity to the Persian Gulf, high per capita carbon dioxide emissions, and the rapid construction of more avant-garde super skyscrapers.
The Supreme Delivery and Heritage Committee (SC)-responsible for overseeing the preparations for the FIFA World Cup in the country-knows that other countries have more experience in organizing international sporting events and securing the right to host quadrennial exhibitions in one country Higher bids once recorded a temperature of 50.4 degrees Celsius, which would be a difficult task. It has to do some great things; it is in line with the slogan of the WC in 2022-"Look forward to being wonderful".
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At this time, Qatar University professor Dr. Saud Abdul-Aziz Abdul-Ghani came to the rescue. As an expert in the field of air conditioning engineering, Dr. Abdul-Ghani’s mission is to explore a sustainable mechanism to eliminate desert heat in Middle Eastern countries. After extensive research and testing, Abdul-Ghani first made a solar cooling helmet for all workers who have to work hard in drought conditions, and then proceeded to develop outdoor air conditioning system plans for seven of the eight venues.
When explaining the mechanism of selecting media, he said: "The inside is like a micro bubble. If the outside air is 52 degrees (Celsius), I can provide 22 degrees in the stadium. No problem."
Panorama of the Lusail Stadium in Doha. -Santadipday
Panorama of the Lusail Stadium in Doha. -Santadipday
He then went on to compare the open stadium to a fish tank with oil on the top. "Hot air is lighter than cold air. So, it will always go up, and there will be cold air at the bottom. We recycle cold air. So, although it is an open space, it acts like a closed space. It just Like oil and water. You sit in this stadium like a fish in the water and never switch to the oil section. We closed all service doors while testing the kit and created a small layer of cold air at the bottom. The hot air above is like "oil, but we have been recycling cold air so that you never move to the oil or hot air part." The measure of our success is that we minimize the mixing of hot and cold air. "
Facts have proved that the adoption of this system in the Khalifa International Stadium is the most challenging because, unlike other stadiums that had to be built from the ground up, this stadium on Al Waab Street was built in 1976. As the cornerstone of Qatar's rich sports culture, the venue has previously hosted the 2006 Asian Games, the 2011 AFC Asian Cup, the 2019 Club World Cup and the World Athletics Championships in the same year.
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“We have vents under the seats in stadiums like Lusail. That’s better. In Khalifa, we have nozzles that spray air from a higher level. Therefore, maintenance costs increase a bit. Vents cannot be built here. Remember, The break of the old staircase may have an impact on the structure," he said.
The 40,000-seat Khalifa Stadium has 2,013 nozzles that can blow cold air across the floors and into the stadium. "The tunnel has a large plate winder that can recover air. We pump air into this large space, but we suck it back, recool it, and push it out again. We do this to make the load smaller. The whole machine involves cooling. The cost of packaging does not exceed 10% of the entire budget," he explained.
The 40,000-seat Khalifa Stadium has 2,013 nozzles that can blow cold air across the floors and into the stadium. -Saint-Dipday
The 40,000-seat Khalifa Stadium has 2,013 nozzles that can blow cold air across the floors and into the stadium. -Saint-Dipday
The cooler was first tested in 35,000 spectators participating in the 2017 Emir Cup final. Abdul-Ghani said: “What we did in Khalifa is better than walking around with a temperature sensor. We want to see how people perceive normal comfort and weather changes. Everyone has to fill out a small survey on their mobile phone. Describe their clothes, age, gender, where they sit, and how they feel, from very hot, hot, neutral to cold, very cold. Then we monitor the input from our computer room, we have completed the stadium Debug that foundation."
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Abdul-Ghani informed that the artificial cooling technology can also double as a filter system. "If there is dust in the air, we will take it away along with pollen and suspended particles. So, we also purify the air. The mechanism is the same as what happens in a car. There are filters. When we soak the outside air, it passes through a similar The filter on the sieve has very small holes. Only clean air can pass through and dirt particles are captured."
Earlier reports stated that the temperature of the stadium was lower than required. However, Abdul-Ghani explained that this may be a one-off incident. "Our stadium is too cold for a reason. These are built for high heat loads. During COVID-19, fans are not allowed, so maybe the players feel a bit cold. In fact, we have the best control. System. For players, we don’t measure temperature, we measure thermal stress-the skin provides the ability to evaporate sweat," he said.
(The author should be delivered with the invitation of the Supreme Council of Heritage in Qatar)
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