Institute for Energy and Environmental Research’s president Arjun Makhijani made the following proposal to the situation at the Fukushima Daiichi Nuclear Power Plant.
Light and Water in Fukushima Back
Mar. 29, 2011:
Issues of Water and Light in the Turbine Buildings at Fukushima Daiichi
Workers at the Fukushima Daiichi plant have been trying to reestablish electricity connections to pumps so as to restart the cooling system for the reactors at the plant. According to news reports, two of the major obstacles have been
• a high radiation environment (on the order of 1,000 millisieverts per hour) due to contaminated water on the floor of the turbine buildings, and
• a lack of light in the turbine buildings, which has forced the electricians to work in the dark.
A former nuclear power plant designer Yuzo Uehara tweeted the following:
Proposal 290130: To recover with equipment you have right now is very unlikely without having protection against radiation exposure. You need to know how much tsunami and hydrogen explosion pressure had. You need to have big picture thinking. Get closer from the buildings and access from the outside. To drain contaminated water, don’t you have a plan to bring a 1000-ton-class tanker, and send and stock the water there?
Proposal 291430: In my culvert method plan, stop discharge and remove the debris in the first stage. The minimum recovery. The forefront has a movable pipe nozzle to inject water, and remove contaminated water and debris. It is remote controlled by a crane from the inside of the culvert. The targeted period to complete this is a week. In the second stage, the full-scale recovery’s main objective is expansion. It’s like having a space station on the ground.
Proposal 291500: In the first stage, if we had an 1km-culvert, transportation, heavy machinery, resources, processing, and manpower cost about 2 billion yen. If we had 2km one, then 30% increase. In the second stage, the cost is about the same, but it gets increased by making the forefront more sophisticated. By publicizing the cost, I’d like to make it as the commitment to the public.
Online PDF Magazine fotgazet published its special edition. Japan Visual Journalists Association’s members went to Tohoku on the day after the earthquake tsunami hit. The magazine covers tsunami stricken areas and radiation contamination in Fukushima.
This edition’s download is free. Please go to its website and click the banner to download the PDF magazine. Although it’s in Japanese, pictures say tells the stories.
Protest against TEPCO and Japanese nuclear plant. (photos by Mitsu Maeda)
More than 1200 people protested against TEPCO and nuclear power plants in Tokyo.
The video by OurPlanet-TV (audio in Japanese)
There was also an anti-nuclear power plants protest in Nagoya on the same day, and the protesters demanded to shutdown the Hamaoka Nuclear Power Plant
A former nuclear power plant designer with 36-year-experience Yuzo Uehara sent his proposal with the diagrams to this blog. Thank you, Mr. Uehara.
The Culvert Prefabrication Method System to cool down Fukushima Daiichi nuclear reactors while minimizing radiation exposure
(Some texts have not been translated since most of them have been already covered by his tweets. So, please refer to the translated texts on this blog.)
(click the images to enlarge)
The original diagrams are here and here.
A former nuclear power plant designer Yuzo Uehara raises some questions that are out of his field.
261720: I think those who are related to river hydraulics in Japan have been already working, but we already know that the path of the radiation contaminated water goes like this: rain > mountains underground water channels > rivers > dams > rivers > sea. After using underground pools with cascade to dilute, you can estimate where the best place to discharge is. Propose the solution for Japan!
261740: To all experts in meteorology. Please estimate where wind blocking walls should be installed around the site and how large and high they should be. And, when it rains or snows, radiation goes up at the site ground, but can the walls prevent radiation from spreading out?
Citizen’s Nuclear Information Center had a press conference at the Foreign Correspondents’ Club of Japan on March 25th. The speech Q & A is in Japanese with English interpretation.
The video link: http://www.ustream.tv/recorded/13556497
The information about this conference is here.