What triggered the catastrophe in Fukushima and what was going on inside the reactor? BarCamp Session held by Regine Zawodsky at SciBArCampVIE

1. Nuclear Reactors
Regine Zawodsky
ISOTOPES
Hydrogen
2
1 H
Tritium
n 3 3
p 1 T 1 H
e-

2. Fission
n
Chain Reaction
n U

3. Critical Mass
U
n
1.n
U
waiting for
fission
Critical Mass

4. Fission
n
U
t
SHUT DOWN

5. Reactor in Operation
+ Energy
U 235 U 238
92 + 143 92 + 146
T1/2 = 7 • 108 a T1/2 = 4,5 • 109 a

6. Fission
n
20.000 km/s
n
U / Pu
v for further Fissions
20 000 km /s
U 238
2 km /s
U 235

7. Slowing Down
Moderator
n
Slowing Down
n

8. Enrichment U 235
U 235
U 238
Nuclear Fuel
UO2 / PuO2
Zr - ~

9. Boiling Water Reactor
(Zwentendorf / Fukushima)
http://de.wikipedia.org/w/index.php?title=Datei:Boiling_water_reactor_german.svg&filetimestamp=20110330160138
Normal Operating State

10. H2
Oxyhydrogen

11. Molten Control Rods 1200°C
Molten Zr Tubes 1800°C

12. 2800° UO2 is melting
Nuclear Meltdown
“corium”
Pressure Vessel is Melting

13. Blowout
Water Cannon

14. Spent Fuel Pool
Overheating

15. EURATOM Credits in Million €
226
584
688
Belgium
362 Germany
France
Italy
213
UK
Bulgaria
251 Ukraine
Romania
1.142
533
7.4.2011
Underwater Electricity generation module

16. FLEXBLUE Frz UnterseeKKW
http://www.trademarkia.com/flexblue-flexible-energy-79100978.html
http://www.spiegel.de/fotostrecke/fotostrecke-71225.html
http://www.meretmarine.com/article.cfm?id=115103
2013 Cherbourg
Travelling Wave Reactor
Terra power
Toshiba
+
Bill Gates
Na liq