Japan finds evidence that Fukushima Daiichi may have been caused by human error
Tokyo Electric Power Company (TEPCO), operator of the stricken Fukushima nuclear plant, has claimed that it had “taken various measures to prevent nuclear disaster” and that the tsunami that hit the plant following…
Evaluation of Stress Corrosion Cracking (SCC) of Stainless Steel Canister in Marine Environment for Long-Term Dry Storage of Spent Nuclear Fuel
An Evaluation of Stress Corrosion Cracking (SCC) of Stainless Steel Canister in Marine Environment for Long-Term Dry Storage of Spent Nuclear Fuel T T. Ahn,(1) S. DePaula,(1) J. Solis,(1) T. Mintz,(2) H. Jung,(2)…
October 2011 – The Fukushima Daiichi Accident – NuLeAF Meeting
•Outline of the accident •Aims of the Chief Inspector’s Reports •Openness and development of the project •Conclusions & recommendations of Interim & Final Reports Major external hazards affected site Station blackout Loss of some DC power…
March 29th, 2011 – Status of 3 Units and 4 pools – Realistic Scenarios
From: Brown, Frederick Sent: Tuesday, March 29, 2011 10:56 PM To: Cheok, Michael; Gibson, Kathy Cc: Ruland, William; Dudes, Laura; Uhle, Jennifer; Hiland, Patrick; Hackett, Edwin; Skeen, David; RST01 Hoc; Hoc, PMT12; McDermott,…
Quantitative Estimation (QPE) and Quantitative Forecasting (QPF) of Precipitation
Quantitative Precipitation Estimation (QPE) and Quantitative Precipitation Forecasting (QPF) of Japan Meteorological Agency TYPHOON COMMITTEE Integrated Workshop on Urban Flood Risk Management in a Changing Climate: Sustainable and Adaptation Challenges Macao, China 06-10…
Average burnup of damaged fuels loaded in Fukushima Reactors – 134Cs/137Cs
134Cs/137Cs ratio method Numerical analysis Analysis of actually measured 134Cs/137Cs ratio contaminated soils within the range of 100km from the 1F NPPs Discussion Overview of 1F NPPs accident Station blackout accompanied with loss…
Overview of Deterministic Safety Analysis: Areas of Analysis and Computer Codes
Lesson: IV 2_1 Purpose: To present and explain the different areas of analysis (thermal-hydraulic, neutronics, etc.) and the computer codes used Learning objectives: To be aware of different evaluation methodologies applied in safety…
Primary Parameters of Fukushima Daiichi Unit 1 as of December 13th, 2011
Primary Parameters of Fukushima Daiichi Unit 1 (As of 12/13)
Environmental impacts of the Fukushima Nuclear Accident (as of December 15, 2011)
Environmental Impact of the Fukushima Nuclear Accident Environmental impacts of the Fukushima Nuclear Accident are updated in a Table. The attached map summarizes the concentrations of radioactive materials in the soil and the…
Effects of aging at Fukushima Daiichi Reactor 1
December 15, 2011Impact of aging in Fukushima Daiichi Nuclear Power Plant Accident No. 1 reactor in Fukushima Daiichi Nuclear Power Station (1.79MB)
March 27th, 2011 – Salt effects on molten core materials – Effects on energetics
From: Lee, Richard To: Hoxie, Chris; Uhle, Jennifer Cc: Gibson, Kathy Sent: Sun Mar 27 10:35:35 2011 Subject: RE: Brian’s Q Consulted both Mike and Dana on the matter – Salt effects on…
March 26th, 2011 – Melt that relocates to lower head will be mixed with a lot of sea salt
From: Sheron, Brian To: Lee, Richard Cc: Uhle, Jennifer; Gibson, Kathy Sent: Sat Mar 26 16:40:11 2011 Subject: RE: Sharing info. with DOE Science Council Remember that the lower head is filled with…
March 26th, 2011 – Fuel Coolant Interaction Analysis – Worse Case Melt Scenario
From: Lee, Richard To: Gibson, Kathy Sent: Sat Mar 26 09:09:19 2011 Subject: Sharing info. with DOE Science Council Dear Kathy: Sud and I had asked Mike Corradini to perform an assessment on…
March 26th, 2011 – Mark 1 hydrogen explosion damaging torus/suppression pool
From: Tinkler,’Charles To: Gibson, Kathy Sent: Sat Mar 26 13:23:10 2011 Subject: RE: Mark I failure There was speculation that hydrogen explosion in the reactor building may have damaged the torus/suppression pool. However,…
March 26th, 2011 – Mark 1 containment vulnerable to melt through – SBO
From: Tinkler, Charles To: Gibson, Kathy Sent: Sat Mar 26 12:42:22 2011 Subject: Mark I failure The Mark I containment is relatively vulnerable to drywell shell/liner melt thru – if the reactor vessel…
March 26th, 2011 – Mark 1 liner failure during severe accidents – Some made changes
From: Tinkler, Charles To: Gibson, Kathy Sent: Sat Mar 26 13:03:47 2011 Subject: RE: Mark I failure Sure, I will set up briefing More background : Mark I liner failure during severe accidents…
Fukushima Prefecture to Suspend Applications for Nuclear Subsidies
Fukushima Prefecture will no longer apply for government subsidies for hosting nuclear power plants. The Fukushima prefectural government concluded it will not apply for about three billion yen, or nearly 38-million dollars in…
Palisades Nuclear Station – Loss of both main feedpumps
Power Reactor Event Number: 47523 Facility: PALISADES Region: 3 State: MI Unit: [1] [ ] [ ] RX Type: [1] CE NRC Notified By: MIKE LEE HQ OPS Officer: VINCE KLCO Notification Date: 12/14/2011 Notification Time:…
If enriching Uranium and Plutonium is profitable – Why is Japan dumping them as waste?
The Japanese government admitted Thursday that nuclear substances have been found in the waste of domestic facilities subject to International Atomic Energy Agency inspection, but left unreported to the U.N. nuclear watchdog. Top…
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