Violent fluctuations of hydrogen concentration in reactor1

Hydrogen concentration of reactor 1 has been fluctuating violently since 6/3/2012.

On the daily press conference of 6/4/2012, Tepco explained hydrogen gas is heterogeneous inside of PCV, the indicator captured the mass of high concentration by chance.

 

(14:40~)

 

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However, it dropped once on 6/9 and it picked up on 6/10 again.

There are 2 indicators for hydrogen concentration, system A and B. Both are in the same trend.

If hydrogen concentration goes over 4% (Oxygen 5%), there is the possibility of hydrogen explosion. Tepco is injecting nitrogen to control the hydrogen concentration.

 

Violent fluctuations of hydrogen concentration in reactor1

 

Violent fluctuations of hydrogen concentration in reactor1 2

 

Source

 

 

Categories: Plant hazard

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