Archive for nuclear power plant

quick impressions from Japan

Posted in pictures, Running, Travel with tags , , , , , , , , , on July 9, 2012 by xi'an

Just like last year trip to Shanghai was my first visit to China, this trip to Kyoto was my first time in Japan. I found the experience so exhilarating that I am already considering a trip back next year! (Especially since I could have lost all of my Kyoto pictures with my hard drive!) The mix of tradition and modernity, of history and high-tech, of chaotic architecture and smooth interactions, of rice fields in the shade of high-rises and of houses in the shade of expressways; all those snapshots, caught from the train as much as from the few hours I spent exploring the modern part of the city, are starting to blur already and I feel a need to go beyond to get a broader and deeper perspective on this fascinating country! Continue reading

presidential election [snapshot]

Posted in Statistics with tags , , , , , on March 6, 2012 by xi'an

(Heard on the public radio, from a presidential candidate whose ideas are close to mine’s, but who is definitely missing in quantitative as well as verbal skills!)

It has been shown that the probability of a major nuclear accident in France is of one out of six every ten years. It is like a gun where you put six bullets in the barrel and press the trigger every ten years.

(Hem…, no!)

Nuclear newspeak

Posted in Statistics with tags , , , on March 13, 2011 by xi'an

Here is the most recent press release from TEPCO, the Tokyo Electricity Power Company that manages the Fukushima Daïchi nuclear plant, where experts believe several reactors may have already melted:

Press Release (Mar 13,2011)
Plant Status of Fukushima Daiichi Nuclear Power Station (as of 9am March 13th)

All 6 units of Fukushima Daiichi Nuclear Power Station have been shut down.

Unit 1(Shut down)
- Reactor has been shut down. However, the unit is under inspection due
   to the explosive sound and white smoke that was confirmed after the big
   quake occurred at 3:36PM.
- We have been injecting sea water and boric acid which absorbs neutron
  into the reactor core. 

Unit 2(Shut down)
- Reactor has been shut down and Reactor Core Isolation Cooling System has
  been injecting water to the reactor. Current reactor water level is lower
  than normal level, but the water level is steady. After fully securing
  safety, we are preparing to implement a measure to reduce the pressure of
  the reactor containment vessels under the instruction of the national
  government. 

Unit 3(Shut down)
- Reactor has been shut down. However, High Pressure Core Injection System
  has been automatically shut down and water injection to the reactor is
  currently interrupted. We are examining alternative way to inject water.
  Also, following the instruction by the government and with fully securing
  safety, steps to lowering the pressure of reactor containment vessel has
  been taken. Spraying in order to lower pressure level within the reactor
  containment vessel has been cancelled.
- Currently, we do not believe there is any reactor coolant leakage inside
  the reactor containment vessel.

Unit 4 (shut down 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 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.

I find it amazing it is written in such a surrealistic remote tone, given what is currently happening in this plant!