ScribbleLive

"Japan’s basic policy is to release information about this accident with a high degree of
transparency. In preparing this report under this policy, attention has been paid to providing as
accurately as possible an exact description of the facts of the situation, together with an
objective evaluation of countermeasures against the accident, clearly distinguishing between
known and unknown matters. Factual descriptions are based on findings current as of May 31,
2011." Do ya believe it?

This report is written by an Anglo for sure. Japanese principals , but good English.

Or maybe even wrote it, GE has a lot of money invested here.

"Injected water vaporizes after absorbing heat from the nuclear fuel in the RPV. Accordingly, the
inner pressure rose in the RPVs which had lost their core cooling functions, and this water vapor
leaked through the safety valves into the PCV. Due to this, the inner pressure within the PCVs in
Units 1 to 3 rose gradually, with PCV wet well vent operations carried out a number of times, in
which the gases in the PCVs are released from the gas phase area in the suppression chamber
into the atmosphere, through the ventilation stack, for the purpose of preventing damage to the
PCV caused by the pressure therein."

Hi all,

Is this not about 50% of Chernobyl? "NISA estimated the total discharged amount from reactors at the Fukushima Dai-ichi NPSs
according to the results analyzing reactor status, etc. by JNES and presumed that approximately
1.3x 10
17
Bq of iodine-131 and approximately 6.1x 10
15
Bq of cesium-137 were discharged.
Subsequently, JNES re-analyzed the status of the reactors based on the report which NISA
collected on May 16 from TEPCO on the plant data immediately after the accident occurred.
Based on this analysis of reactor status and others by JNES, NISA estimated that the total
discharged amount of iodine-131 and cesium-137 were approximately 1.6 x 10
17
Bq and 1.5 x
10
16
Bq, respectively. The Nuclear Safety Commission estimated the amount of certain nuclides
discharged into the atmosphere (discharged between March 11 to April 5) with assistance from
the Japan Atomic Energy Agency (JAEA) through back calculations, based on the data of
environmental monitoring and air diffusion calculation; the estimations are 1.5 x 10
17
Bq for
iodine-131 and 1.2 x 10
16
Bq for cesium-137. The discharged amount since early April has been
declining and is about 10
11
Bq/h to 10
12
Bq/h in iodine-131 equivalent."

Page 21....

@Ralph Unger I mean if they were continue to operate RCIC manually there will be no explosion => no leak of water or steam at all

@Ralph Unger the valves stuck. From where did you get that info ? I didn't found anything about stuck valves , I already read all Routers blog and some more :)