A new type of robot to probe inside damaged Fukushima nuclear reactor

Toshiba unveils robot to probe melted Fukushima nuclear fuel, WP, By Mari Yamaguchi | AP, January 28 YOKOHAMA, Japan — Toshiba Corp. unveiled a remote-controlled robot with tongs on Monday that it hopes will be able to probe the inside of one of the three damaged reactors at Japan’s tsunami-hit Fukushima nuclear plant and grip chunks of highly radioactive melted fuel.

The device is designed to slide down an extendable 11-meter (36-foot) long pipe and touch melted fuel inside the Unit 2 reactor’s primary containment vessel. The reactor was built by Toshiba and GE.

An earlier probe carrying a camera captured images of pieces of melted fuel in the reactor last year, and robotic probes in the two other reactors have detected traces of damaged fuel, but the exact location, contents and other details remain largely unknown.

Toshiba’s energy systems unit said experiments with the new probe planned in February are key to determining the proper equipment and technologies needed to remove the fuel debris, the most challenging part of the decommissioning process expected to take decades.

…….. The probe will mainly examine the fuel debris’ physical condition rather than its radioactive components or other details which require actual sampling and safe storage……. https://www.washingtonpost.com/world/asia_pacific/toshiba-unveils-robot-to-probe-melted-fukushima-nuclear-fuel/2019/01/28/4214f596-2314-11e9-b5b4-1d18dfb7b084_story.html?utm_term=.3bfe336cb31c

1.This Month

PETITION

Free Julian Assange, before it’s too late. Sign to STOP the USA Extradition

United Nations: demasking the Torture of Julian Assange. Rico Brouwer and Nils Melzer

Three Mile Island (& Fukushima) Lies & Cover-Ups w/ Gundersen & Wasserman

Energy efficiency – theme for July 2019

Energy efficiency represents the single largest potential contributor to global emissions reduction, according to the International Energy Agency (IEA 2017). It should be a key part of the global energy strategy, for several reasons:

It could reduce global electric demand by more than 20 per cent, based on current rates in the U.S. power sector, while maintaining high levels of services such as heating and lighting.
It avoids the need for increased energy, capacity and grid services, making it the least expensive way to decarbonise at scale.
It can reduce carbon dioxide emissions by billions of tonnes.

A dramatic example of the power of energy efficiency is lighting. In 2017 the United States passed the milestone of 1 billion LED and CFL lights installed, avoiding 142 million tonnes a year of carbon dioxide emissions, at a cost of about $7 per ton of avoided carbon dioxide. In contrast, the cumulative installed capacity of rooftop solar reached 8,000 MW in 2017, saving 8 million tonnes a year of carbon dioxide, at a cost of $360 per ton. Lighting efficiency thus yielded almost 18 times the avoided carbon dioxide, at about 2 per cent the cost per ton of rooftop solar.

Google provides another example of the power of energy efficiency. Its data centers now use 50 per cent less energy than the average data center, according to the company. Google also developed an improved chip, the TPU, which performs 83 times better than standard CPUs. The new chip allowed Google to reduce power consumption at its data centers by a factor of 30—far exceeding the effect on Google’s carbon footprint of all of the company’s renewable energy purchases. ” – John Woolard, Eco Business, 10 June 2019

nuclear-news

The News That Matters about the Nuclear Industry Fukushima Chernobyl Mayak Three Mile Island Atomic Testing Radiation Isotope