nuklear is geil... PUNKT!!!
Eine sehr fundierte Aussage...
Das Problem beim Atomausstieg sehe ich darin, dass eigentlich nur die reicheren westlichen Länder das Geld haben, um AKWs stillzulegen und alternative Anlagen zur Energiegewinnung zu errichten. Dummerweise haben aber genau die Länder die modernsten, sichersten und am besten gewartetsten Reaktoren am Start. Die Länder mit den unsicheren Reaktoren, z.B. im Gebiet der ehemaligen Sovjetunion, können ihre alten AKWs nicht stilllegen, denn sie sind auf den Strom angewiesen und haben kein Geld, um Strom zu kaufen oder alternative Kraftwerke neu zu errichten.
Was nützt uns in Deutschland der Atomausstieg, wenn irgendwann im Osten ein weiterer Reaktor explodiert und die Wolke dann wieder zu uns zieht?
Meiner persönlichen Meinung nach sollte man global zuerst dort ansetzen, wo die ältesten und unsichersten Reaktoren stehen, und diesen Ländern helfen. Wenn das geschafft ist arbeitet man sich hoch und am Ende sind die modernen AKWs dran. Das Problem ist halt nach wie vor auch, dass es keine Technik gibt, die ähnlich viel Strom bei ähnlich geringem CO2-Ausstoß liefert.
Fusion evtl. in Zukunft mal, da hat man zumindest den vorteil, dass die Reaktion dazu neigt, von alleine abzubrechen, wenn sie außer Kontrolle gerät. Das Problem bei Atomreaktoren ist ja, dass man den Reaktor drosselt, weil er von alleine schmelzen würde wie Wassereis am Strand. Man bewegt sich also im sicheren Grenzbereich während des Normalbetriebs. Ein Verlust dieser Reaktorkontrolle führt zu rapider Spaltung und Kettenreaktion, der Vorgang ist dann weder einzudämmen, noch zu bremsen oder zu stoppen. Kein anderer Kraftwerkstyp hat dieses Kontrollproblem und diesen enormen Effektradius im GAU-Fall.
Unabhängig davon, kennt ihr eigentlich das Interview mit Alexander Yuvchenko?
Alexander Yuvchenko’s story about Chernobyl
Er ist einer der ganz wenigen überlebenden Mitarbeiter des Tschernobyl-Reaktors, der am Unfalltag dort arbeitete. Sein Bericht hat schon etwas Episches, der Anblick vor Ort muss einen geradezu apokalyptischen Flair gehabt haben.
I couldn't imagine it was something to do with the reactor. Before it happened there were no vibrations, no sounds, nothing to indicate there was something wrong. We were trained for various emergency situations. We were engineers, and we were trained in what the reactors could or could not do and what could go wrong. We were prepared for fire and other things, but we were not trained for this. We all thought the safety measures were reliable, that if you pressed the emergency stop button to lower the control rods into the reactor - which is what my friend Leonid Toptunov in the control room did that night - that it would stop the power as it was supposed to. But it didn't. People make mistakes, but we thought the safety measures would compensate for that. We believed what we were told in the work manual.
To get a clearer idea of what had happened we walked outside. What we saw was terrifying. Everything that could be destroyed had been. The entire water coolant system was gone. The right-hand side of the reactor hall had been completely destroyed, and on the left the pipes were just hanging. That was when I realised that Khodemchuk was definitely dead. The place where I was told he'd been standing was in ruins. The huge turbines were still standing, but everything around them was rubble. He must have been buried under that. From where I stood I could see a huge beam of projected light flooding up into infinity from the reactor. It was like a laser light, caused by the ionisation of the air. It was light-bluish, and it was very beautiful. I watched it for several seconds. If I'd stood there for just a few minutes I would probably have died on the spot because of gamma rays and neutrons and everything else that was spewing out. But Tregub yanked me around the corner to get me out the way. He was older and more experienced.
I began to feel sick. I knew one of the first symptoms of radiation illness was vomiting, but I was thinking, have I eaten something? I was trying to keep the worst thoughts at bay. Half an hour after the explosion I had met a man with a dosimeter, he was fully covered so I don't know who it was, and I asked him what the reading was. He showed me the counter, which was off the scale. That was a frightening moment. It was impossible to say how much radiation we were taking in, but I knew it was a large dose. I was taken to the local hospital at about 5 am because I was too weak to walk. I was taken to Moscow that evening.
