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Evaporative cooling tackles 50 deg C heat for Doha football fans with air conditioning in open air

Air2O’s new combination system installed in open air fan zone in Doha as trial for cooling the fans at stadiums for 2022 Qatar World Cup

Air2O has just installed systems in the Fan Zone at Doha’s Aspire Track Zone in Qatar, the multi-purpose soccer training stadium and fan zone for the 2022 FIFA World Cup. The open air fan zone, which is the size of a full sized football pitch, will be used to test the cooling technology ‘s potential use for training facilities across Qatar for the World Cup.  The fan zone recently attracted thousands of people to watch the Brazil World Cup matches.

The company from Leigh, Lancashire, claims to make ‘the highest performing evaporative cooling system in the world’,

A total of 120 Air2O hybrid units will deliver 50 tonnes or 175 kW of cooling at a rate of 10,000 cfm in Doha, to combat external temperatures that can reach 50 deg C, the company said. The aim will be to maintain temperatures of 26 deg C, for the fans watching the action.

Air2O technology uses a combination of indirect or direct evaporative cooling technology or traditional DX air conditioning. The firm said this combination is unique, allowing it claim an energy saving of up to 47 per cent against a conventional air conditioning approach. An intelligent control system can automatically respond to external weather conditions, switching its cooling strategy from evaporative cooling to air-conditioning when needed.

Outdoor air is first passed through an evaporative cooling section, and as the warm air is cooled, so is the water. This cool water is then transferred to a high efficiency heat exchanger (over which the primary outdoor air is passed) to deliver the first stage of cooling with no additional moisture, providing indirect evaporative cooling. The air is then further cooled as it passes the second cooling stage, providing direct evaporative cooling.

See the video here.

Mike Sullivan of Air2O said: ‘We were delighted to win the Aspire Track project, which presents huge challenges in terms of cooling a large area with formidable external temperatures and high humidity levels, and it has given us the chance to show what our innovative technology is capable of.” 

Mr Sullivan added that the systems are now installed in locations as diverse as Universal Studios in Singapore, factories and schools in Dubai - and [former Tonight presenter] Jay Leno’s garage.

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