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The cooling water for the pool of temporary heat exchanger for nuclear fuel rods is completely intact Fukushima No. 1 nuclear power plant in Tokyo Electric Power Co. announced - the first result, as of March 11, days after the disaster and the month ahead of schedule.
According to TEPCO, the cooling system was restored on Tuesday storage pool No. 2 reactor in Fukushima, the construction of the plant. This is the first stable cooling system at the factory, since it suffered extensive damage on March 11 earthquake and tsunami.
Tuesday's rebound was also well ahead of the deadline set in January TEPCO in its schedule to end the crisis at the plant under control.
It cools a tube running from the temporary storage pool in a heat exchanger using cooling water in the exchanger. The heat exchanger is water cooled air with a fan.
The water temperature is a pool of storage is currently 70 C, 80 C. you miss the pool water to evaporate, add water poured into the pool to compensate.
If the heat exchanger system works efficiently, the temperature is stabilized around 40 ° C, according to TEPCO.
Humidity of the construction of the reactor No. 2 is as high as 99 percent, because a pool of fuel vapor, and other factors.
If the humidity drops work much more efficiently you can build.
A similar heat exchanger system was put into service for the No. 1 and 3 reactor buildings later this month and the building of reactor No. 4 of July, according to TEPCO.