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The US Mission to the United Nations in Geneva recently celebrated the official launch of its new air-conditioning system. This marked the introduction of the first large-tonnage magnetic levitation (MagLev) bearing chiller in Europe. (Though not the first application of MagLev technology in the world – that occurred on Earth Day in 2007, at the US Embassy in Tokyo.)
William Dowell of The Global Post reported rather breathlessly how “a select group of journalists and civil engineering aficionados” were greeted by waiters trundling trolleys around loaded with chiller cocktails and dry ice for added effect. In case you were wondering, the recipe is as follows:
Three parts Midori melon liqueur
Two parts Schweppes tonic water
Half Part lime juice
The Mission’s cutting-edge technology showcases a system that uses no lubrication oil and a minimal amount of refrigerant compared with traditional systems. This is a long-awaited commercial application of a solution to a decades-old engineering dilemma of how to maintain a magnetic levitation motor shaft within microscopic tolerances.
Magnetic levitation dates back to the 1940s, but modern electronic control was needed to turn it into a practical reality. See page 30 for our report on this technology and its sustainability potential for the HVAC industry.
Back home, another toast is due the UAE construction industry, where new research claims that more than 200 construction projects are due to be completed during the first half of this year. Astonishingly, this is more than the entire figure for 2008, claims industry analyst Proleads. The research states that only 2,4% of the 1,289 UAE construction projects, worth US $1,28 trillion, that were under way at the start of 2009 have actually been cancelled. This means that about 135 projects are on schedule to be completed in the first quarter of 2009, with another 70 to be finished in the second quarter, compared with 184 overall last year.

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