Wednesday, July 13, 2011

"the way, that leadeth to destruction" - (Reactor Unit 5 and 6)

Tokyo Bay...





Reactor Unit 5 and 6 (5 Unité des réacteurs et 6)

The probability that you enter Heaven might not be so large, since you have money.

The probability that an infant might enter Heaven might be so large, since he or she has no money in most cases.

But, is the path to wealth so widely open? Compared with the way for a righteous life, it must be wider open though it must gets soon steep and high.


SECTION I: Fukushima Daiichi No. 5/6 Reactors

There are six nuclear reactor units in the Fukushima Daiichi nuclear power plant which are named from No. 1 to No. 6, though it was the first four reactors (No. 1 to No. 4) that were damaged by the 3/11 great earthquake, the 3/11 great tsunami, and subsequent hydrogen explosions.

Press Release (Mar 11,2011)
Impact to TEPCO's Facilities due to Miyagiken-Oki Earthquake (as of 9PM)

Fukushima Daiichi Nuclear Power Station:
Units 1 to 3: shutdown due to earthquake
Units 4 to 6: outage due to regular inspection

Press Release (Mar 12,2011)
Plant Status of Fukushima Daiichi Nuclear Power Station (as of 11PM March 12th )

Unit 5 (outage due to regular inspection)
- Reactor has been shut down and sufficient level of reactor coolant to
ensure safety is maintained.
- Currently, we do not believe there is any reactor coolant leakage
inside the reactor containment vessel.

Unit 6 (outage due to regular inspection)
- Reactor has been shut down and sufficient level of reactor coolant to
ensure safety is maintained.
- Currently, we do not believe there is any reactor coolant leakage
inside the reactor containment vessel.

Press Release (Mar 17,2011)
Plant Status of Fukushima Daiichi Nuclear Power Station (as of 9:00 am Mar 17th)

Unit 5 (outage due to regular inspection)
-Reactor has been shut down and sufficient level of reactor coolant to
ensure safety is maintained.
-Currently, we do not believe there is any reactor coolant leakage
inside the reactor containment vessel.

Unit 6 (outage due to regular inspection)
-Reactor has been shut down and sufficient level of reactor coolant to
ensure safety is maintained.
-Currently, we do not believe there is any reactor coolant leakage
inside the reactor containment vessel.

Press Release (Mar 29,2011)
Plant Status of Fukushima Daiichi Nuclear Power Station (as of 4:00 PM Mar 29th)

Unit 5 (outage due to regular inspection)
-Sufficient level of reactor coolant to ensure safety is maintained.
-At 5 am, March 19th, we started the Residual Heat Removal System Pump (C) in order to cool the spent fuel pool.
-At 2:30 pm, March 20th, the reactor achieved reactor cold shutdown.
At around 5:24 pm on March 23rd, when we switched the temporary Residual Heat Removal System Seawater Pump, it has stopped automatically. At around 4:14 pm, March 24th we replaced the pump, and restarted cooling of reactor at around 4:35 pm.
-At this moment, we do not consider any reactor coolant leakage inside the reactor happened.

Unit 6 (outage due to regular inspection)
-Sufficient level of reactor coolant to ensure safety is maintained.
-We completed the repair work on the emergency diesel generator (A).
-At 10:14 pm, March 19th, we started the Residual Heat Removal System Pump (B) of Unit 6 in order to cool the spent fuel pool.
-At 7:27 pm, March 20th, the reactor achieved reactor cold shutdown.
-In relation to the two seawater side pumps of the Residual Heat
Removal System, we switched the power source from temporary to permanent at 3:38 PM and 3:42PM, Mar 25 respectively.
-At this moment, we do not consider any reactor coolant leakage inside
the reactor happened.

http://www.tepco.co.jp/en/press/corp-com/release/index-e.html


When power generation is stopped in a nuclear power plant, how can its facilities and instruments receive electricity? Yes, it is from the outside of the nuclear power plant or from emergency diesel generators installed in the nuclear plant. But, Reactor Unit 1 to 4 of Fukushima Daiichi lost them all on April 11, 2011. But, the situation was a little different for Unit 5 and 6, since they were situated over a distance from Unit 1 to 4.

The Reactor Unit 5 was shut down for periodic inspection on January 3, 2011. When the great earthquake and the tsunami attacked the Fukushima Daiichi nuclear plant, the Reactor Unit 5 had its fuel rods inside the nuclear reactor and the spent fuel pool. The tsunami destroyed the emergency power supply from the outside of the plant to the Reactor Unit 5. However, its pump to circulate coolant water through the pressure vessel received electricity from a diesel generator that survived the tsunami in the Reactor Unit 6. The pump also sent cooling water to the spent fuel pool inside the nuclear reactor building. All the other diesel generators for emergency use except this one were destroyed by the tsunami. On march 21, the power supply from outside of the Fukushima Daiichi Plant to the Reactor Unit 5 was restored. The fuel-rods cooling operation continued successfully.

The Reactor Unit 6 was shut down for periodic inspection on August 16, 2010. When the great earthquake and the tsunami attacked the Fukushima Daiichi nuclear plant, the Reactor Unit 6 had its fuel rods inside the nuclear reactor and the spent fuel pool. The tsunami destroyed the emergency power supply from the outside of the plant to the Reactor Unit 6. However, its pump to circulate coolant water through the pressure vessel received electricity from the diesel generator that survived the tsunami in the Reactor Unit 6. The pump also sent cooling water to the spent fuel pool inside the nuclear reactor building. All the other diesel generators for emergency use except this one were destroyed by the tsunami. On march 22, the power supply from outside of the Fukushima Daiichi Plant to the Reactor Unit 6 was restored. The fuel-rods cooling operation continued successfully.

In this way, no meltdown occurred in Reactor Unit 5 and 6 of Fukushima Daiichi. Accordingly, no hydrogen explosion occurred in Reactor Unit 5 and 6. Therefore, no radiation leakage occurred from Reactor Unit 5 and 6 of Fukushima Daiichi.



*** *** *** ***


The era of the Space Shuttle is going to end finally, since the last Shuttle is now orbiting the earth.

Its operation has expanded from 1981 to 2011. The number of launching operations is 135. It failed twice fatally. It fails at a ratio of 2/135 = 1.48%.

In Japan, among 54 nuclear reactors four reactors in Fukushima Daiichi failed in the wake of the 3/11 Disaster. So, they fail at a ratio of 4/54 = 7.4%.

However, TEPCO estimated the possibility of occurrence of a tsunami with a height of 10 meters at its nuclear power plant as 1%. This estimation was reported by Tokyo Electric Power Company itself in an international conference in 2006.

The lesson is that a 1% probability of any fatal incident must be addressed with full capability of any non-nonsense organization.

And, the era of the World Trade Center in New York was already gone after having stretched from 1973 to 2001. It is said that there have been 200 skyscrapers in the U.S. As two WTC towers were fatally demolished, their fatal rate might be regarded as 2/200 = 1%, too.

As another example, among 44 U.S. Presidents four were assassinated; the fatal ratio is 4/44 = 9%.

But, how many princesses have been killed in a car accident in the world? Princess Grace and Princess Diana, and any more? As there are 26 royal families and one imperial family in the world today, so that probably 100 princesses must have existed between 1980's and 1990's. Then their fatal rate is 2/100 = 2%.



(Telstar was launched in 1962.
http://www.youtube.com/watch?v=_Z5sfyqd4pk)


Mat 7:13 Enter ye in at the strait gate: for wide is the gate, and broad is the way, that leadeth to destruction, and many there be which go in thereat: