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août 5, 2017

Fukushima: robot images show massive deposits thought to be melted nuclear fuel

Informations

Robot spots suspected debris of melted fuel for first time since 2011 earthquake and tsunami destroyed the plant


Robot shows suspected melted nuclear fuel at Fukushima reactor

Images captured by an underwater robot on Saturday showed massive deposits believed to be melted nuclear fuel covering the floor of a damaged reactor at Japan’s destroyed Fukushima nuclear plant.

The robot found large amounts of solidified lava-like rocks and lumps in layers as thick as 1m on the bottom inside a main structure called the pedestal that sits underneath the core inside the primary containment vessel of Fukushima’s Unit 3 reactor, said the plant’s operator, Tokyo Electric Power Co.

On Friday, the robot spotted suspected debris of melted fuel for the first time since the 2011 earthquake and tsunami caused multiple meltdowns and destroyed the plant. The three-day investigation of Unit 3 ended on Saturday.

Locating and analysing the fuel debris and damage in each of the plant’s 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.

Inside the pedestal of reactor No. 3 at Fukushima Dai-ichi nuclear power plant in Japan. The operator is using an underwater robot to inspect damage suffered in a tsunami-induced meltdown. Photograph: Supplied/AFP/Getty Images

During this week’s probe, 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 plant.

TEPCO spokesman Takahiro Kimoto said it would take time to analyse the debris in the images to figure out removal methods.


Related Stories
Robot shows suspected melted nuclear fuel at Fukushima reactor – video
 Published:23 Jul 2017

 

Fukushima nuclear reactor radiation at highest level since 2011 meltdown
 Published:3 Feb 2017

 

Possible nuclear fuel find raises hopes of Fukushima plant breakthrough
 Published:30 Jan 2017

 

Robot reveals inside Fukushima nuclear reactor – video
 Published:14 Apr 2015

 

International nuclear inspectors arrive in Fukushima

 Published:9 Oct 2011

 

Japanese nuclear workers enter Fukushima reactor

 Published:5 May 2011

 

UK nuclear plans on hold after Fukushima

 Published:5 Apr 2011

 

Japan nuclear plant gets help from US robots

Mapa ilustrativo dos reatores nucleares no mundo High-priced Fukushima ice wall nears completion, but effectiveness doubtful

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Energia solar está prestes a atingir 100 gigawatts graças à China

Informations

Energia solar está prestes a atingir 100 gigawatts graças à China

A indústria de energia solar está prestes a atingir um marco: as instalações globais deverão atingir 108 gigawatts este ano graças à China, mostram projeções da IHS Markit.

Will Cheap Renewables Make Nuclear Power Obsolete?

Informations

Will Cheap Renewables Make Nuclear Power Obsolete?

Cheap renewables are mounting a serious challenge to nuclear power, which in 2017 has had a difficult year. Key projects have been abandoned, costs are rising, and politicians in countries which previously championed the industry are withdrawing their support.

Deux réacteurs nucléaires japonais fermeront définitivement en 2019

Informations

Deux réacteurs nucléaires japonais fermeront définitivement en 2019

La compagnie japonaise d’électricité Kansai Electric Power a officialisé vendredi la fermeture en 2019 de deux de ses réacteurs nucléaires vieillissants. Elle juge trop élevé le coût de leur mise en conformité avec les nouvelles normes de sécurité post-Fukushima.

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août 5, 2017

Fukushima: robot images show massive deposits thought to be melted nuclear fuel

غير مصنف

 

Robot spots suspected debris of melted fuel for first time since 2011 earthquake and tsunami destroyed the plant


Robot shows suspected melted nuclear fuel at Fukushima reactor

Images captured by an underwater robot on Saturday showed massive deposits believed to be melted nuclear fuel covering the floor of a damaged reactor at Japan’s destroyed Fukushima nuclear plant.

The robot found large amounts of solidified lava-like rocks and lumps in layers as thick as 1m on the bottom inside a main structure called the pedestal that sits underneath the core inside the primary containment vessel of Fukushima’s Unit 3 reactor, said the plant’s operator, Tokyo Electric Power Co.

On Friday, the robot spotted suspected debris of melted fuel for the first time since the 2011 earthquake and tsunami caused multiple meltdowns and destroyed the plant. The three-day investigation of Unit 3 ended on Saturday.

Locating and analysing the fuel debris and damage in each of the plant’s 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.

Inside the pedestal of reactor No. 3 at Fukushima Dai-ichi nuclear power plant in Japan. The operator is using an underwater robot to inspect damage suffered in a tsunami-induced meltdown. Photograph: Supplied/AFP/Getty Images

During this week’s probe, 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 plant.

TEPCO spokesman Takahiro Kimoto said it would take time to analyse the debris in the images to figure out removal methods.


Related Stories
Robot shows suspected melted nuclear fuel at Fukushima reactor – video
 Published:23 Jul 2017

 

Fukushima nuclear reactor radiation at highest level since 2011 meltdown
 Published:3 Feb 2017

 

Possible nuclear fuel find raises hopes of Fukushima plant breakthrough
 Published:30 Jan 2017

 

Robot reveals inside Fukushima nuclear reactor – video
 Published:14 Apr 2015

 

International nuclear inspectors arrive in Fukushima

 Published:9 Oct 2011

 

Japanese nuclear workers enter Fukushima reactor

 Published:5 May 2011

 

UK nuclear plans on hold after Fukushima

 Published:5 Apr 2011

 

Japan nuclear plant gets help from US robots

Mapa ilustrativo dos reatores nucleares no mundo High-priced Fukushima ice wall nears completion, but effectiveness doubtful

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Energia solar está prestes a atingir 100 gigawatts graças à China

غير مصنف

Energia solar está prestes a atingir 100 gigawatts graças à China

A indústria de energia solar está prestes a atingir um marco: as instalações globais deverão atingir 108 gigawatts este ano graças à China, mostram projeções da IHS Markit.

Will Cheap Renewables Make Nuclear Power Obsolete?

غير مصنف

Will Cheap Renewables Make Nuclear Power Obsolete?

Cheap renewables are mounting a serious challenge to nuclear power, which in 2017 has had a difficult year. Key projects have been abandoned, costs are rising, and politicians in countries which previously championed the industry are withdrawing their support.

غير مصنف

Deux réacteurs nucléaires japonais fermeront définitivement en 2019

La compagnie japonaise d’électricité Kansai Electric Power a officialisé vendredi la fermeture en 2019 de deux de ses réacteurs nucléaires vieillissants. Elle juge trop élevé le coût de leur mise en conformité avec les nouvelles normes de sécurité post-Fukushima.

août 5, 2017

Fukushima: robot images show massive deposits thought to be melted nuclear fuel

Informations

 

Robot spots suspected debris of melted fuel for first time since 2011 earthquake and tsunami destroyed the plant


Robot shows suspected melted nuclear fuel at Fukushima reactor

Images captured by an underwater robot on Saturday showed massive deposits believed to be melted nuclear fuel covering the floor of a damaged reactor at Japan’s destroyed Fukushima nuclear plant.

The robot found large amounts of solidified lava-like rocks and lumps in layers as thick as 1m on the bottom inside a main structure called the pedestal that sits underneath the core inside the primary containment vessel of Fukushima’s Unit 3 reactor, said the plant’s operator, Tokyo Electric Power Co.

On Friday, the robot spotted suspected debris of melted fuel for the first time since the 2011 earthquake and tsunami caused multiple meltdowns and destroyed the plant. The three-day investigation of Unit 3 ended on Saturday.

Locating and analysing the fuel debris and damage in each of the plant’s 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.

Inside the pedestal of reactor No. 3 at Fukushima Dai-ichi nuclear power plant in Japan. The operator is using an underwater robot to inspect damage suffered in a tsunami-induced meltdown. Photograph: Supplied/AFP/Getty Images

During this week’s probe, 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 plant.

TEPCO spokesman Takahiro Kimoto said it would take time to analyse the debris in the images to figure out removal methods.


Related Stories
Robot shows suspected melted nuclear fuel at Fukushima reactor – video
 Published:23 Jul 2017

 

Fukushima nuclear reactor radiation at highest level since 2011 meltdown
 Published:3 Feb 2017

 

Possible nuclear fuel find raises hopes of Fukushima plant breakthrough
 Published:30 Jan 2017

 

Robot reveals inside Fukushima nuclear reactor – video
 Published:14 Apr 2015

 

International nuclear inspectors arrive in Fukushima

 Published:9 Oct 2011

 

Japanese nuclear workers enter Fukushima reactor

 Published:5 May 2011

 

UK nuclear plans on hold after Fukushima

 Published:5 Apr 2011

 

Japan nuclear plant gets help from US robots

Mapa ilustrativo dos reatores nucleares no mundo High-priced Fukushima ice wall nears completion, but effectiveness doubtful

Related Posts

Energia solar está prestes a atingir 100 gigawatts graças à China

Informations

Energia solar está prestes a atingir 100 gigawatts graças à China

A indústria de energia solar está prestes a atingir um marco: as instalações globais deverão atingir 108 gigawatts este ano graças à China, mostram projeções da IHS Markit.

Will Cheap Renewables Make Nuclear Power Obsolete?

Informations

Will Cheap Renewables Make Nuclear Power Obsolete?

Cheap renewables are mounting a serious challenge to nuclear power, which in 2017 has had a difficult year. Key projects have been abandoned, costs are rising, and politicians in countries which previously championed the industry are withdrawing their support.

Deux réacteurs nucléaires japonais fermeront définitivement en 2019

Informations

Deux réacteurs nucléaires japonais fermeront définitivement en 2019

La compagnie japonaise d’électricité Kansai Electric Power a officialisé vendredi la fermeture en 2019 de deux de ses réacteurs nucléaires vieillissants. Elle juge trop élevé le coût de leur mise en conformité avec les nouvelles normes de sécurité post-Fukushima.

août 5, 2017

Fukushima: robot images show massive deposits thought to be melted nuclear fuel

Non categorizzato

 

Robot spots suspected debris of melted fuel for first time since 2011 earthquake and tsunami destroyed the plant


Robot shows suspected melted nuclear fuel at Fukushima reactor

Images captured by an underwater robot on Saturday showed massive deposits believed to be melted nuclear fuel covering the floor of a damaged reactor at Japan’s destroyed Fukushima nuclear plant.

The robot found large amounts of solidified lava-like rocks and lumps in layers as thick as 1m on the bottom inside a main structure called the pedestal that sits underneath the core inside the primary containment vessel of Fukushima’s Unit 3 reactor, said the plant’s operator, Tokyo Electric Power Co.

On Friday, the robot spotted suspected debris of melted fuel for the first time since the 2011 earthquake and tsunami caused multiple meltdowns and destroyed the plant. The three-day investigation of Unit 3 ended on Saturday.

Locating and analysing the fuel debris and damage in each of the plant’s 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.

Inside the pedestal of reactor No. 3 at Fukushima Dai-ichi nuclear power plant in Japan. The operator is using an underwater robot to inspect damage suffered in a tsunami-induced meltdown. Photograph: Supplied/AFP/Getty Images

During this week’s probe, 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 plant.

TEPCO spokesman Takahiro Kimoto said it would take time to analyse the debris in the images to figure out removal methods.


Related Stories
Robot shows suspected melted nuclear fuel at Fukushima reactor – video
 Published:23 Jul 2017

 

Fukushima nuclear reactor radiation at highest level since 2011 meltdown
 Published:3 Feb 2017

 

Possible nuclear fuel find raises hopes of Fukushima plant breakthrough
 Published:30 Jan 2017

 

Robot reveals inside Fukushima nuclear reactor – video
 Published:14 Apr 2015

 

International nuclear inspectors arrive in Fukushima

 Published:9 Oct 2011

 

Japanese nuclear workers enter Fukushima reactor

 Published:5 May 2011

 

UK nuclear plans on hold after Fukushima

 Published:5 Apr 2011

 

Japan nuclear plant gets help from US robots

Mapa ilustrativo dos reatores nucleares no mundo High-priced Fukushima ice wall nears completion, but effectiveness doubtful

Related Posts

Energia solar está prestes a atingir 100 gigawatts graças à China

Non categorizzato

Energia solar está prestes a atingir 100 gigawatts graças à China

A indústria de energia solar está prestes a atingir um marco: as instalações globais deverão atingir 108 gigawatts este ano graças à China, mostram projeções da IHS Markit.

Will Cheap Renewables Make Nuclear Power Obsolete?

Non categorizzato

Will Cheap Renewables Make Nuclear Power Obsolete?

Cheap renewables are mounting a serious challenge to nuclear power, which in 2017 has had a difficult year. Key projects have been abandoned, costs are rising, and politicians in countries which previously championed the industry are withdrawing their support.

Deux réacteurs nucléaires japonais fermeront définitivement en 2019

Non categorizzato

Deux réacteurs nucléaires japonais fermeront définitivement en 2019

La compagnie japonaise d’électricité Kansai Electric Power a officialisé vendredi la fermeture en 2019 de deux de ses réacteurs nucléaires vieillissants. Elle juge trop élevé le coût de leur mise en conformité avec les nouvelles normes de sécurité post-Fukushima.

août 5, 2017

Fukushima: robot images show massive deposits thought to be melted nuclear fuel

カテゴリーなし

 

Robot spots suspected debris of melted fuel for first time since 2011 earthquake and tsunami destroyed the plant


Robot shows suspected melted nuclear fuel at Fukushima reactor

Images captured by an underwater robot on Saturday showed massive deposits believed to be melted nuclear fuel covering the floor of a damaged reactor at Japan’s destroyed Fukushima nuclear plant.

The robot found large amounts of solidified lava-like rocks and lumps in layers as thick as 1m on the bottom inside a main structure called the pedestal that sits underneath the core inside the primary containment vessel of Fukushima’s Unit 3 reactor, said the plant’s operator, Tokyo Electric Power Co.

On Friday, the robot spotted suspected debris of melted fuel for the first time since the 2011 earthquake and tsunami caused multiple meltdowns and destroyed the plant. The three-day investigation of Unit 3 ended on Saturday.

Locating and analysing the fuel debris and damage in each of the plant’s 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.

Inside the pedestal of reactor No. 3 at Fukushima Dai-ichi nuclear power plant in Japan. The operator is using an underwater robot to inspect damage suffered in a tsunami-induced meltdown. Photograph: Supplied/AFP/Getty Images

During this week’s probe, 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 plant.

TEPCO spokesman Takahiro Kimoto said it would take time to analyse the debris in the images to figure out removal methods.


Related Stories
Robot shows suspected melted nuclear fuel at Fukushima reactor – video
 Published:23 Jul 2017

 

Fukushima nuclear reactor radiation at highest level since 2011 meltdown
 Published:3 Feb 2017

 

Possible nuclear fuel find raises hopes of Fukushima plant breakthrough
 Published:30 Jan 2017

 

Robot reveals inside Fukushima nuclear reactor – video
 Published:14 Apr 2015

 

International nuclear inspectors arrive in Fukushima

 Published:9 Oct 2011

 

Japanese nuclear workers enter Fukushima reactor

 Published:5 May 2011

 

UK nuclear plans on hold after Fukushima

 Published:5 Apr 2011

 

Japan nuclear plant gets help from US robots

Mapa ilustrativo dos reatores nucleares no mundo High-priced Fukushima ice wall nears completion, but effectiveness doubtful

Related Posts

Energia solar está prestes a atingir 100 gigawatts graças à China

カテゴリーなし

Energia solar está prestes a atingir 100 gigawatts graças à China

A indústria de energia solar está prestes a atingir um marco: as instalações globais deverão atingir 108 gigawatts este ano graças à China, mostram projeções da IHS Markit.

Will Cheap Renewables Make Nuclear Power Obsolete?

カテゴリーなし

Will Cheap Renewables Make Nuclear Power Obsolete?

Cheap renewables are mounting a serious challenge to nuclear power, which in 2017 has had a difficult year. Key projects have been abandoned, costs are rising, and politicians in countries which previously championed the industry are withdrawing their support.

Deux réacteurs nucléaires japonais fermeront définitivement en 2019

カテゴリーなし

Deux réacteurs nucléaires japonais fermeront définitivement en 2019

La compagnie japonaise d’électricité Kansai Electric Power a officialisé vendredi la fermeture en 2019 de deux de ses réacteurs nucléaires vieillissants. Elle juge trop élevé le coût de leur mise en conformité avec les nouvelles normes de sécurité post-Fukushima.

août 5, 2017

Fukushima: robot images show massive deposits thought to be melted nuclear fuel

Informações

 
Robot spots suspected debris of melted fuel for first time since 2011 earthquake and tsunami destroyed the plant


Robot shows suspected melted nuclear fuel at Fukushima reactor

Images captured by an underwater robot on Saturday showed massive deposits believed to be melted nuclear fuel covering the floor of a damaged reactor at Japan’s destroyed Fukushima nuclear plant.

The robot found large amounts of solidified lava-like rocks and lumps in layers as thick as 1m on the bottom inside a main structure called the pedestal that sits underneath the core inside the primary containment vessel of Fukushima’s Unit 3 reactor, said the plant’s operator, Tokyo Electric Power Co.

On Friday, the robot spotted suspected debris of melted fuel for the first time since the 2011 earthquake and tsunami caused multiple meltdowns and destroyed the plant. The three-day investigation of Unit 3 ended on Saturday.

Locating and analysing the fuel debris and damage in each of the plant’s 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.

Inside the pedestal of reactor No. 3 at Fukushima Dai-ichi nuclear power plant in Japan. The operator is using an underwater robot to inspect damage suffered in a tsunami-induced meltdown. Photograph: Supplied/AFP/Getty Images

During this week’s probe, 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 plant.

TEPCO spokesman Takahiro Kimoto said it would take time to analyse the debris in the images to figure out removal methods.


Related Stories
Robot shows suspected melted nuclear fuel at Fukushima reactor – video
 Published:23 Jul 2017

 

Fukushima nuclear reactor radiation at highest level since 2011 meltdown
 Published:3 Feb 2017

 

Possible nuclear fuel find raises hopes of Fukushima plant breakthrough
 Published:30 Jan 2017

 

Robot reveals inside Fukushima nuclear reactor – video
 Published:14 Apr 2015

 

International nuclear inspectors arrive in Fukushima

 Published:9 Oct 2011

 

Japanese nuclear workers enter Fukushima reactor

 Published:5 May 2011

 

UK nuclear plans on hold after Fukushima

 Published:5 Apr 2011

 

Japan nuclear plant gets help from US robots

Mapa ilustrativo dos reatores nucleares no mundo High-priced Fukushima ice wall nears completion, but effectiveness doubtful

Related Posts

Energia solar está prestes a atingir 100 gigawatts graças à China

Informações

Energia solar está prestes a atingir 100 gigawatts graças à China

A indústria de energia solar está prestes a atingir um marco: as instalações globais deverão atingir 108 gigawatts este ano graças à China, mostram projeções da IHS Markit.

Will Cheap Renewables Make Nuclear Power Obsolete?

Informações

Will Cheap Renewables Make Nuclear Power Obsolete?

Cheap renewables are mounting a serious challenge to nuclear power, which in 2017 has had a difficult year. Key projects have been abandoned, costs are rising, and politicians in countries which previously championed the industry are withdrawing their support.

Deux réacteurs nucléaires japonais fermeront définitivement en 2019

Informações

Deux réacteurs nucléaires japonais fermeront définitivement en 2019

La compagnie japonaise d’électricité Kansai Electric Power a officialisé vendredi la fermeture en 2019 de deux de ses réacteurs nucléaires vieillissants. Elle juge trop élevé le coût de leur mise en conformité avec les nouvelles normes de sécurité post-Fukushima.

août 5, 2017

Fukushima: robot images show massive deposits thought to be melted nuclear fuel

Без категории

 

Robot spots suspected debris of melted fuel for first time since 2011 earthquake and tsunami destroyed the plant


Robot shows suspected melted nuclear fuel at Fukushima reactor

Images captured by an underwater robot on Saturday showed massive deposits believed to be melted nuclear fuel covering the floor of a damaged reactor at Japan’s destroyed Fukushima nuclear plant.

The robot found large amounts of solidified lava-like rocks and lumps in layers as thick as 1m on the bottom inside a main structure called the pedestal that sits underneath the core inside the primary containment vessel of Fukushima’s Unit 3 reactor, said the plant’s operator, Tokyo Electric Power Co.

On Friday, the robot spotted suspected debris of melted fuel for the first time since the 2011 earthquake and tsunami caused multiple meltdowns and destroyed the plant. The three-day investigation of Unit 3 ended on Saturday.

Locating and analysing the fuel debris and damage in each of the plant’s 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.

Inside the pedestal of reactor No. 3 at Fukushima Dai-ichi nuclear power plant in Japan. The operator is using an underwater robot to inspect damage suffered in a tsunami-induced meltdown. Photograph: Supplied/AFP/Getty Images

During this week’s probe, 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 plant.

TEPCO spokesman Takahiro Kimoto said it would take time to analyse the debris in the images to figure out removal methods.


Related Stories
Robot shows suspected melted nuclear fuel at Fukushima reactor – video
 Published:23 Jul 2017

 

Fukushima nuclear reactor radiation at highest level since 2011 meltdown
 Published:3 Feb 2017

 

Possible nuclear fuel find raises hopes of Fukushima plant breakthrough
 Published:30 Jan 2017

 

Robot reveals inside Fukushima nuclear reactor – video
 Published:14 Apr 2015

 

International nuclear inspectors arrive in Fukushima

 Published:9 Oct 2011

 

Japanese nuclear workers enter Fukushima reactor

 Published:5 May 2011

 

UK nuclear plans on hold after Fukushima

 Published:5 Apr 2011

 

Japan nuclear plant gets help from US robots

Mapa ilustrativo dos reatores nucleares no mundo High-priced Fukushima ice wall nears completion, but effectiveness doubtful

Related Posts

Energia solar está prestes a atingir 100 gigawatts graças à China

Без категории

Energia solar está prestes a atingir 100 gigawatts graças à China

A indústria de energia solar está prestes a atingir um marco: as instalações globais deverão atingir 108 gigawatts este ano graças à China, mostram projeções da IHS Markit.

Will Cheap Renewables Make Nuclear Power Obsolete?

Без категории

Will Cheap Renewables Make Nuclear Power Obsolete?

Cheap renewables are mounting a serious challenge to nuclear power, which in 2017 has had a difficult year. Key projects have been abandoned, costs are rising, and politicians in countries which previously championed the industry are withdrawing their support.

Deux réacteurs nucléaires japonais fermeront définitivement en 2019

Без категории

Deux réacteurs nucléaires japonais fermeront définitivement en 2019

La compagnie japonaise d’électricité Kansai Electric Power a officialisé vendredi la fermeture en 2019 de deux de ses réacteurs nucléaires vieillissants. Elle juge trop élevé le coût de leur mise en conformité avec les nouvelles normes de sécurité post-Fukushima.

août 5, 2017

Fukushima: robot images show massive deposits thought to be melted nuclear fuel

Informaciones

 

Robot spots suspected debris of melted fuel for first time since 2011 earthquake and tsunami destroyed the plant


Robot shows suspected melted nuclear fuel at Fukushima reactor

Images captured by an underwater robot on Saturday showed massive deposits believed to be melted nuclear fuel covering the floor of a damaged reactor at Japan’s destroyed Fukushima nuclear plant.

The robot found large amounts of solidified lava-like rocks and lumps in layers as thick as 1m on the bottom inside a main structure called the pedestal that sits underneath the core inside the primary containment vessel of Fukushima’s Unit 3 reactor, said the plant’s operator, Tokyo Electric Power Co.

On Friday, the robot spotted suspected debris of melted fuel for the first time since the 2011 earthquake and tsunami caused multiple meltdowns and destroyed the plant. The three-day investigation of Unit 3 ended on Saturday.

Locating and analysing the fuel debris and damage in each of the plant’s 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.

Inside the pedestal of reactor No. 3 at Fukushima Dai-ichi nuclear power plant in Japan. The operator is using an underwater robot to inspect damage suffered in a tsunami-induced meltdown. Photograph: Supplied/AFP/Getty Images

During this week’s probe, 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 plant.

TEPCO spokesman Takahiro Kimoto said it would take time to analyse the debris in the images to figure out removal methods.


Related Stories
Robot shows suspected melted nuclear fuel at Fukushima reactor – video
 Published:23 Jul 2017

 

Fukushima nuclear reactor radiation at highest level since 2011 meltdown
 Published:3 Feb 2017

 

Possible nuclear fuel find raises hopes of Fukushima plant breakthrough
 Published:30 Jan 2017

 

Robot reveals inside Fukushima nuclear reactor – video
 Published:14 Apr 2015

 

International nuclear inspectors arrive in Fukushima

 Published:9 Oct 2011

 

Japanese nuclear workers enter Fukushima reactor

 Published:5 May 2011

 

UK nuclear plans on hold after Fukushima

 Published:5 Apr 2011

 

Japan nuclear plant gets help from US robots

Mapa ilustrativo dos reatores nucleares no mundo High-priced Fukushima ice wall nears completion, but effectiveness doubtful

Related Posts

Energia solar está prestes a atingir 100 gigawatts graças à China

Informaciones

Energia solar está prestes a atingir 100 gigawatts graças à China

A indústria de energia solar está prestes a atingir um marco: as instalações globais deverão atingir 108 gigawatts este ano graças à China, mostram projeções da IHS Markit.

Will Cheap Renewables Make Nuclear Power Obsolete?

Informaciones

Will Cheap Renewables Make Nuclear Power Obsolete?

Cheap renewables are mounting a serious challenge to nuclear power, which in 2017 has had a difficult year. Key projects have been abandoned, costs are rising, and politicians in countries which previously championed the industry are withdrawing their support.

Deux réacteurs nucléaires japonais fermeront définitivement en 2019

Informaciones

Deux réacteurs nucléaires japonais fermeront définitivement en 2019

La compagnie japonaise d’électricité Kansai Electric Power a officialisé vendredi la fermeture en 2019 de deux de ses réacteurs nucléaires vieillissants. Elle juge trop élevé le coût de leur mise en conformité avec les nouvelles normes de sécurité post-Fukushima.

© Nuclear Free World 2017
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