Blogroll
-
Recent Posts
Archives
- April 2020
- July 2018
- June 2018
- May 2018
- December 2017
- September 2017
- August 2017
- February 2017
- June 2016
- May 2015
- April 2015
- March 2015
- December 2014
- October 2014
- September 2014
- June 2014
- May 2014
- April 2014
- March 2014
- February 2014
- January 2014
- December 2013
- November 2013
- October 2013
- September 2013
- August 2013
- July 2013
- June 2013
- May 2013
- April 2013
- March 2013
- February 2013
- January 2013
- December 2012
- November 2012
- October 2012
- August 2012
- July 2012
- June 2012
- May 2012
- April 2012
- March 2012
- February 2012
- January 2012
- December 2011
- November 2011
- October 2011
- September 2011
- August 2011
- April 2011
- March 2011
- February 2011
- January 2011
- December 2010
- November 2010
- October 2010
- September 2010
- August 2010
- July 2010
- June 2010
Meta
Tag Archives: fukushima
Fukushima coolant recirculation with siphon
This design avoids damage to recirculation pumps from sea water sediment. A gravity siphon is used to draw water out of the building into a pit where sediment is collected into a shipping container. Water is then pumped from the … Continue reading
Posted in Uncategorized
Tagged coolant pumps, coolant recirculation system, fukushima, gravity flow, nuclear, siphon
Leave a comment
Coolant Recirculation System at Fukushima
They’ve been using sea water to cool the rods, but when the level threatens to overflow the reactor buildings, they’re flushing the water back into the ocean (ref here and here). This is an obvious radioactivity hazard to the environment, … Continue reading
Posted in Uncategorized
Tagged coolant, fukushima, recirculation, shipping containers
Leave a comment
Teleoperated Radioactivity Sample Boat
The high levels of radioactivity in the waters off the Fukushima nuclear plant require constant monitoring, which is best conducted without exposing human workers. Hence this design for a teleoperated radioactivity sample boat. To make the modification effort as simple … Continue reading
Posted in Uncategorized
Tagged boat, fukushima, radioactivity, robotics, sample, water
Leave a comment
A Roof for Fukushima
On the right is the baseball stadium known as Safeco Field in Seattle, USA. It is famous for its retractable roof, which rolls back for sunshine on the rare days in Seattle when there is sunshine. Why bring this up? … Continue reading
Fukushima Cooling Pump Cascade
A German concrete pump is being used at Fukushima to spray cooling water on the spent fuel rods. Now that the plant’s own cooling pumps are down and the cooling pools are empty of water, this pump may be all … Continue reading
Fukushima: Removing Spent Fuel Rods
If you’ve ever looked at Fairewinds Associates videos, you know that the big problem at Fukushima is the drying up of the cooling pools which are suspended over the reactor vessel and contain the spent (but extremely radioactive) fuel rods. … Continue reading
Robot door-opening tool
“Robots to the Rescue” (Technology Review, March 29, 2011): Some experts also question how helpful robots would be after a nuclear plant disaster. Something as simple as a locked door could prevent a robot from doing its job. Is it … Continue reading
Posted in Uncategorized
Tagged door opening tool, fukushima, robot, robotics, teleoperated robotics, TOR
Leave a comment
Robot re-design
The elbows-back manipulator arms of the previous version always make me think of Fozzie Bear going, “Waka waka!” The design was taken from a space robot and doesn’t really work on a ground vehicle, so I replaced it with the … Continue reading
Posted in Uncategorized
Tagged fukushima, remote operated vehicle, remote operated vehicles, robot, robotics, rov, teleoperated robots
Leave a comment
Japan Solar Energy Graphics
Sometimes it seems that nuclear power advocates are attempting to insinuate that Japan doesn’t have enough land area to use solar energy in place of nuclear energy. Here’s what the solar panel requirements actually look like. Per person: [Calculations: Electrical … Continue reading
Robot Arm in Sketchup
This design is based on the first iRobot photo shown here. Sketchup, by the way, is not for CAD, it’s for quickly illustrating concepts. Sketchup can draw smooth curves as in the iRobot photo, but boxes are of course faster … Continue reading
Posted in Uncategorized
Tagged arduino, fukushima, irobot, robot, robot arm, robotics, sketchup, sketchy physics
Leave a comment