Tepco has reported seeing steam at the Fukushima Unit No. 3 Reactor Building almost everyday from September 13-18 (Prior to September 13, no steam had been observed for over a month — since August 7):
- 8:00 AM on September 13 – 3:00 PM on September 13 (7 hours)
- 8:00 AM on September 15 – 8:00 AM on September 16 (24 hours)
- 8:00 AM on September 17 – 9:40 AM on September 17 (1 hr 40 min)
- 8:00 AM on September 18 – 10:00 AM on September 18 (2 hours)
Title: THE DEEPENING CRISIS AT FUKUSHIMA
Source: Green Power and Wellness
Host: Harvey Wasserman
Date: Aug. 12, 2013
At 7:00 in
Harvey Wasserman, host: Is there any of the corium at Fukushima still at 5,000 degrees Fahrenheit?
Gordon Edwards, nuclear expert and president of the Canadian Coalition for Nuclear Responsibility: It’s conceivable there is, it’s impossible to know for sure… if you’re adding energy, if you’re adding heat, and if that heat cannot escape, if there’s no way for the heat to be removed, then the temperature will go up and up and up. There’s no limit to how high the temperature can go if the heat isn’t removed. Now the heat can be removed by various ways, by conduction, by convection, by active cooling. It’s possible the corium, the melted mass, there could be pockets of corium which are still in a molten state. We don’t know that for sure. [...]
Wasserman: Some steam has been observed on the site. That would be an indicator that we still have super hot material at Fukushima, is that correct?
Edwards: That’s right — and in fact there’s been several incidents of steam escaping. Nobody quite understands what’s going on.
Published: September 18th, 2013 at 3:08 pm ET
- “State of emergency should now be declared throughout world community” over Fukushima — Nuclear Expert: Molten corium related leaks into ocean have never stopped October 14, 2013
- Fukushima Unit No. 3 steaming — Lasted more than four hours today — Observed ‘intermittently’ over past 13 days August 5, 2013
- Nuclear Engineer: New video appears to show molten corium that melted out of Fukushima reactor — “Some of it is still oozing” — We’ve been talking about criticalities going on and causing continued heat for a long time now” (AUDIO & VIDEO) February 23, 2015
- NRC comments on steam at Fukushima Unit 3 — Gundersen: Plutonium could be causing fissions, heating up melted fuel (AUDIO) January 10, 2014
- NPR: How can Fukushima’s molten fuel be contained so it stops contaminating the planet? Nuclear Expert: There’s no way to get at molten fuel… I’ve not seen a solution to this (AUDIO) September 17, 2013