Failure of Reactor in Japan

Emergency ventilation that American officials have said would prevent massive hydrogen explosion at a nuclear plant in the United States tested in Japan - and failed to work, according to experts and officials with the company that operates the Fukushima Daiichi plant paralyzed.

Failure of ventilation call security question similar nuclear power plants in the United States and Japan. After ventilation failed in Fukushima plant, hydrogen gas triggered an explosion that spewed radioactive material into the atmosphere, reaching levels of around 10 per cent of emissions is estimated at Chernobyl, according to Japan's nuclear watchdog.

Ventilation is important to reduce the pressure that builds in some reactors after the tsunami March 11 knocked out the plant cooling system is important. Without the flow of water to cool the reactor core, they have begun to dangerous overheating.

U.S. officials have been saying since the beginning of the reactor in the United States will be safe from such disasters because they are equipped with a new, powerful ventilation systems. But the Tokyo Electric Power Company, which runs the plant, now says that the Fukushima Daiichi ventilation has been installed a year earlier.

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