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July 23 2017

7587 518d 500

Mehr als sechs Jahre nach dem Super-GAU im japanischen AKW Fukushima hat ein Unterwasserroboter dort geschmolzenen Kernbrennstoff gefunden. Darauf sollen die Bilder hindeuten, die der ferngesteuerte Apparat vom Boden des gefluteten Reaktors 3 übermittelt hat.

Der Betreiberkonzern TEPCO teilte mit, dass die Aufnahmen höchstwahrscheinlich geschmolzenen Brennstoff zeigten. Der mit zwei Kameras ausgerüstete, 30 Zentimeter lange Roboter habe die Brennstoffüberreste in ein Meter dicken Schichten am Boden des zerstörten Reaktorbehälters gefunden.

TEPCO muss wissen, wo sich der Brennstoff in jedem der drei havarierten Reaktoren befindet, um herauszufinden, was die beste und sicherste Methode ist, ihn herauszuholen. Eine vollständige Stilllegung der Atomruine Fukushima dürfte Schätzungen zufolge etwa 30 bis 40 Jahre dauern. 



https://deutsch.rt.com/newsticker/54555-vermutlich-geschmolzener-kernbrennstoff-in-fukushima-entdeckt/

map: thyroid cancer cases among those in Fukushima who were a) 18 or younger at the time of the March 2011 meltdown, and b) born afterwards (including suspected cases). total: 190 as of March 31 2017.

Reposted frommr-absentia mr-absentia

Possible melted fuel seen for first time at Fukushima plant

AP via nuclear-news.net (Jul. 22 2017):

7173_a03b_300

An underwater robot captured images of solidified lava-like rocks Friday inside a damaged reactor at Japan’s crippled Fukushima nuclear plant, spotting for the first time what is believed to be nuclear fuel that melted six years ago.

Plant operator Tokyo Electric Power Co. said the robot found large amounts of lava-like debris apparently containing fuel that had flowed out of the core into the primary containment vessel of the Unit 3 reactor at Fukushima. The plant was destroyed by a massive earthquake and tsunami in March 2011.

Cameras mounted on the robot showed extensive damage caused by the core meltdown, with fuel debris mixed with broken reactor parts, suggesting the difficult challenges ahead in the decades-long decommissioning of the destroyed plant.

Experts have said the fuel melted and much of it fell to the chamber’s bottom and is now covered by radioactive water as deep as 6 meters (20 feet). The fuel, during meltdown, also likely melted its casing and other metal structures inside the reactor, forming rocks as it cooled.

TEPCO spokesman Takahiro Kimoto said it was the first time a robot camera has captured what is believed to be the melted fuel.

“That debris has apparently fallen from somewhere higher above. We believe it is highly likely to be melted fuel or something mixed with it,” Kimoto said. He said it would take time to analyze which portions of the rocks were fuel.

In an earlier survey Wednesday, the robot found severe damage in the vessel, including key structures that were broken and knocked out of place.

The robot, nicknamed “the Little Sunfish,” on Friday went inside a structure called the pedestal for a closer look. TEPCO plans to send the robot farther down on Saturday in hopes of finding more melted fuel and debris.

Experts have said the melted fuel is most likely to have landed inside the pedestal after breaching the core.

Kimoto said the robot probe in its two missions has captured a great deal of useful information and images showing the damage inside the reactor, which will help experts eventually determine a way to remove the melted fuel, a process expected to begin sometime after the 2020 Tokyo Olympics.

“It’s still just the beginning of the (decades-long) decommissioning. There is still a long way to go, including developing the necessary technology,” he said. “But it’s a big step forward.”

Locating and analyzing the fuel debris and damage in each of the three wrecked reactors is crucial for decommissioning the plant. The search for melted fuel in the two other reactors has so far been unsuccessful because of damage and extremely high radiation levels.

The submersible robot, about the size of a loaf of bread, is equipped with lights, maneuvers with five propellers and collects data with two cameras and a dosimeter. It is controlled remotely by a group of four operators. It was co-developed by Toshiba Corp., the electronics, nuclear and energy company charged with helping clean up the plant, and the International Research Institute for Nuclear Decommissioning, a government-funded consortium.

Reposted frommr-absentia mr-absentia

July 20 2017

4072 704f 500

A Germany nuclear plant was damaged because its operators increased and decreased its output to respond to energy grid fluctuations. The incident supports the theory that nuclear and renewable energy generation are incompatible.
The Brokdorf nuclear power station, located in northern Germany, was taken offline in February after maintenance showed its reactor’s fuel rods had begun to unexpectedly oxidise.
A regional nuclear supervisory body has now ruled that the plant can be booted back up but only in “safe mode”, according to Schleswig-Holstein’s energy transition minister.



https://www.euractiv.com/section/electricity/news/german-nuclear-damage-shows-atomic-and-renewable-power-are-unhappy-bedfellows/
Reposted fromswissfondue swissfondue
was da auch immer untergeht in der debatte um diese schrottigen dreckschleudern:

in die (bau-)gleiche kategorie mit genau den gleichen problemen fällt dann auch mühleberg.

danke, ihr schweizer atom-idioten!
Reposted fromswissfondue swissfondue

July 19 2017

Aus der beliebten Reihe "bei UNS ist Atomkraft SICHER", heute: 
Die belgischen Schrottmeiler Tihange und Doel waren anscheinend schon vor ihrem initialen Anschalten Schrott.
Denn an der Geschichte der AKW ist brisant, dass die Dokumente über den Zustand der Druckbehälter bei ihrer Herstellung verschwunden sind – das hat die Fanc auch bestätigt. „Dies begründet den Verdacht, dass die Dokumentationen über diese Risse vom Betreiber/Hersteller unterdrückt worden sind. Alleine diese Tatsache müsste zur vorläufigen Einstellung des Betriebs der Anlage führen“, schreibt der renommierte Atomwissenschaftler Wolfgang Renneberg in einem Gutachten.

Meiner Meinung nach hätte es für DIE Erkenntnis keinen renommierten Atomwissenschaftler gebraucht.




https://blog.fefe.de/?ts=a791a95e
Reposted fromswissfondue swissfondue

July 18 2017


“Releasing (tritium) into the sea will create a new wave of unfounded rumors, making our efforts all for naught,” Kanji Tachiya, head of a local fishermen cooperative, told the Japan Times."
I've got news for you Mr Tachiya, there's nothing un-foundered about our concerns.
1) Our concerns are totally justifiable.
2) We know we cannot trust Tepco to release water whose only radionuclides are tritium.
I see a light at the end of the tunnel.
Near term human extinction as a result of runaway abrupt climate change will spare us the multi-generational genetic destruction of Fukushima Daiichi and a multitude of other nuclear disasters.



http://www.neonnettle.com/news/2407-tepco-confirm-plans-to-release-entire-fukushima-waste-into-ocean
Reposted fromswissfondue swissfondue

July 23 2017

7587 518d 500

Mehr als sechs Jahre nach dem Super-GAU im japanischen AKW Fukushima hat ein Unterwasserroboter dort geschmolzenen Kernbrennstoff gefunden. Darauf sollen die Bilder hindeuten, die der ferngesteuerte Apparat vom Boden des gefluteten Reaktors 3 übermittelt hat.

Der Betreiberkonzern TEPCO teilte mit, dass die Aufnahmen höchstwahrscheinlich geschmolzenen Brennstoff zeigten. Der mit zwei Kameras ausgerüstete, 30 Zentimeter lange Roboter habe die Brennstoffüberreste in ein Meter dicken Schichten am Boden des zerstörten Reaktorbehälters gefunden.

TEPCO muss wissen, wo sich der Brennstoff in jedem der drei havarierten Reaktoren befindet, um herauszufinden, was die beste und sicherste Methode ist, ihn herauszuholen. Eine vollständige Stilllegung der Atomruine Fukushima dürfte Schätzungen zufolge etwa 30 bis 40 Jahre dauern. 



https://deutsch.rt.com/newsticker/54555-vermutlich-geschmolzener-kernbrennstoff-in-fukushima-entdeckt/

map: thyroid cancer cases among those in Fukushima who were a) 18 or younger at the time of the March 2011 meltdown, and b) born afterwards (including suspected cases). total: 190 as of March 31 2017.

Reposted frommr-absentia mr-absentia

Possible melted fuel seen for first time at Fukushima plant

AP via nuclear-news.net (Jul. 22 2017):

7173_a03b_300

An underwater robot captured images of solidified lava-like rocks Friday inside a damaged reactor at Japan’s crippled Fukushima nuclear plant, spotting for the first time what is believed to be nuclear fuel that melted six years ago.

Plant operator Tokyo Electric Power Co. said the robot found large amounts of lava-like debris apparently containing fuel that had flowed out of the core into the primary containment vessel of the Unit 3 reactor at Fukushima. The plant was destroyed by a massive earthquake and tsunami in March 2011.

Cameras mounted on the robot showed extensive damage caused by the core meltdown, with fuel debris mixed with broken reactor parts, suggesting the difficult challenges ahead in the decades-long decommissioning of the destroyed plant.

Experts have said the fuel melted and much of it fell to the chamber’s bottom and is now covered by radioactive water as deep as 6 meters (20 feet). The fuel, during meltdown, also likely melted its casing and other metal structures inside the reactor, forming rocks as it cooled.

TEPCO spokesman Takahiro Kimoto said it was the first time a robot camera has captured what is believed to be the melted fuel.

“That debris has apparently fallen from somewhere higher above. We believe it is highly likely to be melted fuel or something mixed with it,” Kimoto said. He said it would take time to analyze which portions of the rocks were fuel.

In an earlier survey Wednesday, the robot found severe damage in the vessel, including key structures that were broken and knocked out of place.

The robot, nicknamed “the Little Sunfish,” on Friday went inside a structure called the pedestal for a closer look. TEPCO plans to send the robot farther down on Saturday in hopes of finding more melted fuel and debris.

Experts have said the melted fuel is most likely to have landed inside the pedestal after breaching the core.

Kimoto said the robot probe in its two missions has captured a great deal of useful information and images showing the damage inside the reactor, which will help experts eventually determine a way to remove the melted fuel, a process expected to begin sometime after the 2020 Tokyo Olympics.

“It’s still just the beginning of the (decades-long) decommissioning. There is still a long way to go, including developing the necessary technology,” he said. “But it’s a big step forward.”

Locating and analyzing the fuel debris and damage in each of the three wrecked reactors is crucial for decommissioning the plant. The search for melted fuel in the two other reactors has so far been unsuccessful because of damage and extremely high radiation levels.

The submersible robot, about the size of a loaf of bread, is equipped with lights, maneuvers with five propellers and collects data with two cameras and a dosimeter. It is controlled remotely by a group of four operators. It was co-developed by Toshiba Corp., the electronics, nuclear and energy company charged with helping clean up the plant, and the International Research Institute for Nuclear Decommissioning, a government-funded consortium.

Reposted frommr-absentia mr-absentia

July 20 2017

4072 704f 500

A Germany nuclear plant was damaged because its operators increased and decreased its output to respond to energy grid fluctuations. The incident supports the theory that nuclear and renewable energy generation are incompatible.
The Brokdorf nuclear power station, located in northern Germany, was taken offline in February after maintenance showed its reactor’s fuel rods had begun to unexpectedly oxidise.
A regional nuclear supervisory body has now ruled that the plant can be booted back up but only in “safe mode”, according to Schleswig-Holstein’s energy transition minister.



https://www.euractiv.com/section/electricity/news/german-nuclear-damage-shows-atomic-and-renewable-power-are-unhappy-bedfellows/
Reposted fromswissfondue swissfondue
was da auch immer untergeht in der debatte um diese schrottigen dreckschleudern:

in die (bau-)gleiche kategorie mit genau den gleichen problemen fällt dann auch mühleberg.

danke, ihr schweizer atom-idioten!
Reposted fromswissfondue swissfondue

July 19 2017

Aus der beliebten Reihe "bei UNS ist Atomkraft SICHER", heute: 
Die belgischen Schrottmeiler Tihange und Doel waren anscheinend schon vor ihrem initialen Anschalten Schrott.
Denn an der Geschichte der AKW ist brisant, dass die Dokumente über den Zustand der Druckbehälter bei ihrer Herstellung verschwunden sind – das hat die Fanc auch bestätigt. „Dies begründet den Verdacht, dass die Dokumentationen über diese Risse vom Betreiber/Hersteller unterdrückt worden sind. Alleine diese Tatsache müsste zur vorläufigen Einstellung des Betriebs der Anlage führen“, schreibt der renommierte Atomwissenschaftler Wolfgang Renneberg in einem Gutachten.

Meiner Meinung nach hätte es für DIE Erkenntnis keinen renommierten Atomwissenschaftler gebraucht.




https://blog.fefe.de/?ts=a791a95e
Reposted fromswissfondue swissfondue

July 23 2017

map: thyroid cancer cases among those in Fukushima who were a) 18 or younger at the time of the March 2011 meltdown, and b) born afterwards (including suspected cases). total: 190 as of March 31 2017.

Reposted frommr-absentia mr-absentia

Possible melted fuel seen for first time at Fukushima plant

AP via nuclear-news.net (Jul. 22 2017):

7173_a03b_300

An underwater robot captured images of solidified lava-like rocks Friday inside a damaged reactor at Japan’s crippled Fukushima nuclear plant, spotting for the first time what is believed to be nuclear fuel that melted six years ago.

Plant operator Tokyo Electric Power Co. said the robot found large amounts of lava-like debris apparently containing fuel that had flowed out of the core into the primary containment vessel of the Unit 3 reactor at Fukushima. The plant was destroyed by a massive earthquake and tsunami in March 2011.

Cameras mounted on the robot showed extensive damage caused by the core meltdown, with fuel debris mixed with broken reactor parts, suggesting the difficult challenges ahead in the decades-long decommissioning of the destroyed plant.

Experts have said the fuel melted and much of it fell to the chamber’s bottom and is now covered by radioactive water as deep as 6 meters (20 feet). The fuel, during meltdown, also likely melted its casing and other metal structures inside the reactor, forming rocks as it cooled.

TEPCO spokesman Takahiro Kimoto said it was the first time a robot camera has captured what is believed to be the melted fuel.

“That debris has apparently fallen from somewhere higher above. We believe it is highly likely to be melted fuel or something mixed with it,” Kimoto said. He said it would take time to analyze which portions of the rocks were fuel.

In an earlier survey Wednesday, the robot found severe damage in the vessel, including key structures that were broken and knocked out of place.

The robot, nicknamed “the Little Sunfish,” on Friday went inside a structure called the pedestal for a closer look. TEPCO plans to send the robot farther down on Saturday in hopes of finding more melted fuel and debris.

Experts have said the melted fuel is most likely to have landed inside the pedestal after breaching the core.

Kimoto said the robot probe in its two missions has captured a great deal of useful information and images showing the damage inside the reactor, which will help experts eventually determine a way to remove the melted fuel, a process expected to begin sometime after the 2020 Tokyo Olympics.

“It’s still just the beginning of the (decades-long) decommissioning. There is still a long way to go, including developing the necessary technology,” he said. “But it’s a big step forward.”

Locating and analyzing the fuel debris and damage in each of the three wrecked reactors is crucial for decommissioning the plant. The search for melted fuel in the two other reactors has so far been unsuccessful because of damage and extremely high radiation levels.

The submersible robot, about the size of a loaf of bread, is equipped with lights, maneuvers with five propellers and collects data with two cameras and a dosimeter. It is controlled remotely by a group of four operators. It was co-developed by Toshiba Corp., the electronics, nuclear and energy company charged with helping clean up the plant, and the International Research Institute for Nuclear Decommissioning, a government-funded consortium.

Reposted frommr-absentia mr-absentia

July 20 2017

4072 704f 500

A Germany nuclear plant was damaged because its operators increased and decreased its output to respond to energy grid fluctuations. The incident supports the theory that nuclear and renewable energy generation are incompatible.
The Brokdorf nuclear power station, located in northern Germany, was taken offline in February after maintenance showed its reactor’s fuel rods had begun to unexpectedly oxidise.
A regional nuclear supervisory body has now ruled that the plant can be booted back up but only in “safe mode”, according to Schleswig-Holstein’s energy transition minister.



https://www.euractiv.com/section/electricity/news/german-nuclear-damage-shows-atomic-and-renewable-power-are-unhappy-bedfellows/
Reposted fromswissfondue swissfondue
was da auch immer untergeht in der debatte um diese schrottigen dreckschleudern:

in die (bau-)gleiche kategorie mit genau den gleichen problemen fällt dann auch mühleberg.

danke, ihr schweizer atom-idioten!
Reposted fromswissfondue swissfondue

July 19 2017

Aus der beliebten Reihe "bei UNS ist Atomkraft SICHER", heute: 
Die belgischen Schrottmeiler Tihange und Doel waren anscheinend schon vor ihrem initialen Anschalten Schrott.
Denn an der Geschichte der AKW ist brisant, dass die Dokumente über den Zustand der Druckbehälter bei ihrer Herstellung verschwunden sind – das hat die Fanc auch bestätigt. „Dies begründet den Verdacht, dass die Dokumentationen über diese Risse vom Betreiber/Hersteller unterdrückt worden sind. Alleine diese Tatsache müsste zur vorläufigen Einstellung des Betriebs der Anlage führen“, schreibt der renommierte Atomwissenschaftler Wolfgang Renneberg in einem Gutachten.

Meiner Meinung nach hätte es für DIE Erkenntnis keinen renommierten Atomwissenschaftler gebraucht.




https://blog.fefe.de/?ts=a791a95e
Reposted fromswissfondue swissfondue
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