Hydrgen gas has quadrupled at Unit 2 as temperature has crossed 100 degrees before Tepco declared another broken gauge . tepco as usual won't say what is happening , if they know. The news will be provided once something goes boom or a yea from now if it doesn't go boom.

http://fukushima-diary.com/2012/03/hydrogen-concentration-increased-4-times-higher-at-reactor-2/

Hydrogen concentration increased 4 times higher at reactor 2

Posted by Mochizuki on March 24th, 2012 · 1 Comment

Following up this article..Reactor 2 is reaching 80℃

On 3/22/2012, Tepco announced that they would not use the heating temperature because it’s showing the different pattern from other gauges.

However, the hydrogen concentration has been increasing. At the point of 3/25  5:00, it was already more than 4 times as much as the one on 3/11/2012.

3/11 0.06％

3/16 0.11％

3/22 0.18％

3/24  0.25％

3/25  0.27%

Also, Tepco stopped recording the temperature as of 21:00  3/22/2012, but it went up to 103.7℃ at the last measuring at 20:00 3/22/2012.

2012/3/22 11:00 78.4
2012/3/22 12:00 78.3
2012/3/22 13:00 80.0
2012/3/22 14:00 81.3
2012/3/22 15:00 90.1
2012/3/22 16:00 94.8
2012/3/22 17:00 96.7
2012/3/22 18:00 98.5
2012/3/22 19:00 100.3
2012/3/22 20:00 103.7

As always, no explanation is given by Tepco.

Additionally, the temperature of the bottom of the reactor (VESSEL WALL ABOVE BOTTOM HEAD  TE-2-3-69H2) increased by 7℃ from 11:00 3/22/2012 to 5:00 3/23/2012.

2012/3/22 11:00  44.6℃

2012/3/23 5:00  51.4℃

They still don’t know if it went out of order or there is something really heating.

Because they have abandoned too many heating gauges, now 3 of 6 are treated as broken. From 3/15 to 3/22, Tepco and Toshiba investigated for the place to set new heating gauges from the first floor to the second floor of the reactor building, but the highest reading on the pipe was 1.64 Sv/h.