A former nuclear power plant engineer Yuzo Uehara continues to raise his voice to act immediately to solve the crisis at Fukushima Daiichi Nuclear Power Station.
These are some of the tweets he made today.
Proposal 0730: In the culvert method, I’ve been proposing since 4 days ago, use not concrete but containers and line them up, then pile them up. Even if there were only one, it can block, reduce, and decontaminate radiation. Line them up and make accessing paths. If you install lead outside and inside, you can install them near the high radiation sites. If you put a large diameter pipe ladder there, you can pour water in large amount and precisely.
Proposal 231840: The situation would get better, but we have to do something to block and reduce radiation. We can make pouring water and recovery work quicker. With the culvert method (using concrete or containers), we can give safety the first priority as well as make progress in work. If lead and such were installed, we can work under higher radiation. Recovery work at the site can get done from the various directions.
From the beginning of the disaster, as an ex-nuclear plant designer, I calculated and proposed a specific idea that gets every manpower and equipment together into the site with the culvert method using containers or such and the Carrier/Cask Handling System. The culvert method is effective now. I want those who involved get an idea like this quickly.
Proposal 232030: If wind block walls were 1.5 times higher than a building, the wind speed decreases to 1/3 with in the walls. If they were set up somewhere in the inland side and away from the site, we can limit contamination to the outside. Regularly pour water from a helicopter at the site. Ground radiation at the site would go up, but we can access through the culvert. Ditches are required to prevent water from flowing out to the sea. Wind block walls can be nets with 60m high.
I urge the international community to endorse his proposal or present better ideas to solve the crisis NOW.