The pioneering energy-saving technology developed by Qatar University professor Saud Abdul-Aziz Abdul-Ghani came in for lavish praise from fans, players and visiting dignitaries during the launch of the Khalifa International Stadium in May.
Using plastic nozzles manufactured in Qatar, chilled air was blasted into the sold-out 40,000-capacity stadium, resulting in a drop in temperature of 17c in playing areas and 14C in seating areas from an outside temperature of 37c.

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