DaAiTV_DaAi Headlines_20100624_Shanghai's agitative Expo

As we found out yesterday, at the Shanghai World Expo, the pavilions incorporate green concepts. At the entrance of the Expo Axis, which connects the exhibition halls, there are six steel and glass funnels, which help to support the roof, collect rain, and draw in fresh air. It is as if six morning glories of steel and glass had sprouted from the ground itself: 10 stories tall, their mouths are as large as a soccer field, and forever turned towards the sky. With the sunlight glittering down, they form an area called Sun Valleys. Da Ai reporter, Wu Zhiyi: "They look like glass funnels, and there are six of them - each directing sunlight and fresh air into the exhibition halls, so I can stand here on the second basement level in the bright sunlight and breezes from outside." Over forty meters in height, the features collect fresh air and sunlight from the outside and deliver it downwards, to the underground levels of the Expo Axis. Expo Axis senior manager, Zhao Zhiqiang: "With most buildings, ventilations rely on exhaust fans; those take the dirty air and blow it outside, and that needs electricity - so this lets us use the outside air and light, but because it's so tall, it works like a chimney, delivering the waste air outside, while the fresh air naturally flows in from the sides." When it rains, the water is funneled by the structures into subterranean cisterns beneath the second basement. These cisterns hold seven thousand cubic meters of water, which is then filtered ...



http://www.youtube.com/watch?v=nVgI2S1z1p4&hl=en

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