April 29, 2011

Apr 29, 2011 | Fukushima Accident Updates

Units 2 & 3 RPV temperatures and pressures continue to decrease. The feedwater nozzle temp. on unit 3 is now at 90 o C, which is below the cold shutdown temperature criteria. Bottom of reactor temperatures on all three RPVs is not currently available. TEPCO has...

April 27, 2011

Apr 27, 2011 | Fukushima Accident Updates

Chernobyl Turns 25 On yesterday’s 25th anniversary of Chernobyl, western news media focused on the accident with an intensity not witnessed for more than 20 years. Much of the reason behind the news media’s “Chernobyl resurrection” has been due to the...

April 25, 2011

Apr 25, 2011 | Fukushima Accident Updates

Conditions continue to improve at Fukushima Daiichi. Our first update is clearly the best news to come out of Fukushima Daiichi since the explosion of Unit #1 refueling deck on March 12.Seawater samples taken at nine of the 10 MEXT locations, 30 km off-shore, show no...

April 22, 2011

Apr 22, 2011 | Fukushima Accident Updates

Reactor #1 water temperatures have dropped considerably since Wednesday, with feedwater nozzle temperature of 137 oC and RPV bottom head at 113 oC. Temperatures on reactor’s 2 & 3 have also decreased, but only a few degrees Celsius for each. Pressures in all...

April 20, 2011

Apr 20, 2011 | Fukushima Accident Updates

Reactor temperatures and pressures in the three Daiichi reactors of immediate concern continue to decrease. #1 feedwater nozzle reads 164 oC, and the bottom of the RPV reads 114 oC. The feedwater nozzle on Unit #2 reads 133 oC. Unit #3 nozzle reads 98 oC and the RPV...

April 18, 2011

Apr 18, 2011 | Fukushima Accident Updates

Temperatures and pressures in reactor pressure vessels 1, 2 & 3 continue to decrease. The feedwater nozzle temperatures are 179 degrees C for #1, 141 C for 32, and 92 C for #3. Pressures for # 2 & 3 indicate atmospheric, while #1 pressure is down to ~60 psi....

April 15, 2011

Apr 15, 2011 | Fukushima Accident Updates

Conditions in and around the Fukushima Daiichi power complex continue to improve. Reactor water temperatures slowly decrease for Units 2 & 3, and there seems to have been a major drop in #1 reactor water temperature since yesterday of more than 20 degrees C. (Now...

April 14, 2011

Apr 14, 2011 | Fukushima Accident Updates

From on-going Japanese Press reports, it seems TEPCO and NISA believe Unit #2 reactor fuel cell has the most damage, compared to reactors 1 & 3. In fact, they think much of Unit #2’s fuel cell has melted. As a result, this writer has been puzzled for more...

April 13, 2011

Apr 13, 2011 | Fukushima Accident Updates

For nearly a week, the situation at the Fukushima Daiichi power complex has been slowly stabilizing. The three sets of reactor pressure vessel temperatures have been decreasing and their internal pressures have been stable and steady, with unit 2 & 3 approaching...

April 12, 2011

Apr 12, 2011 | Fukushima Accident Updates

As I’m sure you all know by now, Japan’s Nuclear and Industrial Safety Agency (NISA) has raised the classification of the Fukushima emergency from 5 to 7 on the international scale. (INES) The only nuclear accident previously rated this high was Chernobyl....
Page 1 of 2
1 2