Wednesday, October 3, 2012
UHI Ultra High Risk, October 3, 1984 28th Anniversary
Where are all of the participants now?
Some are hiding and some are lost. Sandia still is alive and I'm working on getting the unfinished business taking care of.
Right now I have to leave town, but I'll be back to celebrate this 28th anniversary!
Monday, September 24, 2012
UHI Ultra High Risk, October 3, 1984: Unfinished Business
Yes there is unfinished business. I've discussed the work by Sandia. Duing 2006, I did not get approval to present a POWER POINT discussion of this. Here is the abstract that I submitted. The report by Sandia was very restricted in scope by the NRC, very likely because the NRC then, like now, did not really have any skills in analyzing field experience and relating that to risks. There is a CATCH, those who may be good at it are not allowed to do it.
Here is the abstract that I submitted to the program manager at INL during June 2006.
the
Sunday, September 9, 2012
Wednesday, August 22, 2012
UHI Ultra High Risk, October 3, 1984, Led to an Abnormal Occurrence Report to Congress
Yes, my NSAC Memorandum, UHI Ultra High Risk, led to an Abnormal Occurrence Report to Congress. Here it is, click on it to enlarge and back arrow to get back here.
A year later, Sandia submitted its analysis to NRC, but noted that the report had information proprietary to Westinghouse, and NRC did not make the report available to the public.
I left the matter alone for about 10 years, but then I went after the NRC for the report. Nothing was producing results, so I faxed the following to the Chairman, NRC on May 30, 1994.
And on June 17, 1994 I was sent the following reply. It reveals that NRC had not even had a copy of the Sandia report and that "extraordinary measures" were required to "locate and acquire" a copy of the letter report. What in the world did NRC do with this Sandia report that was highlighted in the Abnormal Occurrence Report to Congress? We will never know. Moreover, I was not promptly sent the report once NRC found it.
After a while, I was sent a somewhat illegible copy of the report. Following is from page 13 or is it 15? It is not obvious from the poor copy. This Sandia letter report suggests that failure of the UHI isolation valves to close may be beneficial because of the addtitonal water that is injected into the upper head.
Tuesday, August 21, 2012
UHI Ultra High Risk, October 3, 1984: Inside Stuff, EPRI & NRC
This entry jumps ahead of a lot of documentation that I have and that I guess I'll have to place in book if I ever get around to writing that. On November 7, 1984, Rossin and Breen told me my position was being eliminated, but that I'd have a few months to look for work elsewhere. So, I looked elsewhere with no immediate success. I talked to Jim Keppler of the NRC and showed him my memorandum, UHI Ultra High Risk, October 3, 1984, as part of several illustrations of my experience and capabilities. Keppler asked if he could send this elsewhere in NRC and I agreed, however, I blanked out the source of the document as well as my name.
So, the following two pages are an interesting document that reveals very secret relationships between EPRI and the NRC that I was never aware of. It also reveals turmoil. I do not recall how I gained access to the following document; it most certainly was not sent to me. I am inclined to doubt that Rossin was aware of it, but I do not know that. I suspect that Layman and Lang were not aware that my position had been eliminated. On the other hand,
Rossin may have encouraged this documentation in order to justify getting rid of Leyse. Click to enlarge and back arrow to return.
More later.
Sunday, August 19, 2012
UHI Ultra Risk, October 3, 1984: EPRI and Duke Followup
Sugnet was a trusted expert in PRA studies and Breen assigned him to discuss UHI with Duke Power Company who operated several plants having UHI. Here is Sugnet's brief memo following his discussions with Duke. Click on it for enlargement.
It is interesting Sugnet described his contact as an "... informal discussion ... ."
Sugnet does not say that Leyse regarded UHI as Ultra High Risk. Sugnet focuses on the assertion that UHI was essentially eliminated from the Duke PRA for McGuire. He concludes that, "We can probably obtain more detailed information from Duke Power if it becomes necessary."
NSAC management was satisfied with the Sugnet document. Now, I believe that Sugnet's discussion with Duke generated some interest in Duke in looking further into the operational aspects of UHI at McGuire as well as its other UHI units. I infer this because on October 31, 1984, (six days following the Sugnet memo) McGuire Unit 1 was shut down in order to correct a condition of excessive dissolved nitrogen in the UHI accumulator water. Excessive dissolved nitrogen was also found in the UHI accumulator water at McGuire Unit 2, and the UHI system was isolated from the primary system and the operating power was reduced to 45 percent of the rated power in order to compensate for the loss of UHI capability. At Unit 1, it was found that all four UHI level transmitters were improperly installed (apparently about 6 months earlier) and that UHI valves would fail to isolate on low level!
Following are three pages that document the above. The third page is the Duke PNO, November 2, 1984, that reports the problems with UHI.
Friday, August 17, 2012
UHI Ultra High Risk and ACRS Ohi-1 and Ohi-2
Thursday, August 16, 2012
UHI Ultra High Risk EPRI NSAC NRC Ohi
Sunday, August 12, 2012
Upper Head Injection (UHI) Ultra High Risk
(I've recently determined that if the reader clicks on the page an enlarged version appears. Then click the back arrow to get back here.)
Ohi Nuclear Power Plant and Upper Head Injection
Following is an excerpt from a document from November 1990 that I have kept on file:
On October 3, 1984, I documented threats from the Upper Head Injection System, UHI, that is referred to as "upper core spray system" in the Ohi plants. Following is the two page memorandum.
The above memorandum of October 3, 1984, led to substantial turmoil within the Nuclear Safety Analysis Center (NSAC), the Electric Power Research Institute (EPRI), the U. S. Nuclear Regulatory Commission (NRC) and elsewhere. UHI systems were removed from all installations in the USA, (Duke Power Company and the Tennessee Valley Authority). However, in spite of all of the international programs at NRC, EPRI, INPO, and WANO, the word obviously never got to Kansai Electric Power Company until very much later, six years following my memorandum.
Somewhat as an aside, the above copy is the copy that J. J. Taylor, the boss of the EPRI Nuclear Power Division routed to A. D. Rossin who was running NSAC. The yellow highlighting is Taylor's as are also the two handwritten notes in the margins, "nothing wrong with this approach" and "speculation."
I have loads of documents in my file. Maybe I'll write a book. I worked at EPRI for another 10 years, until late 1994, but I was not in NSAC following my reporting of threats from UHI. My new assignment was in the Coal Combustion Systems Division where I managed to get EPRI to fund my exploratory research in microscale heat transfer to pressurized water at ultra high heat fluxes.
As I left EPRI about ten years following my UHI work,I negotiated the release of the files of my exploratory research and the apparatus. As an aside, I then I had time to reduce and report the fantastic results:
http://www.millpress.nl/shop/abooks/THERMES/THERMES/195.pdf
And, I took my ideas and apparatus to UCLA where my results were confirmed:
http://boiling.seas.ucla.edu/BOILING/Publications/Conf_LMWD2003
Monday, July 23, 2012
"Made in Japan." Made in Japan?
See page 1 of 8 of the following:
http://pbadupws.nrc.gov/docs/ML1009/ML100950085.pdf
Please read page 1 of 8, ignore the rest.
Saturday, July 14, 2012
Hardened vents and filtered vents: July report soon?
http://www.nrc.gov/reading-rm/doc-collections/commission/cvr/2012/2012-0025vtr-gbj.pdf
In the fourth paragraph on page 2 of 3 of the above reference we read "... important that the Commission make a decision on the topic of filtered vents this summer ... ."
Now that the NRC has a new Chairman, it is likely that the Jaczko-inspired focus on filtered vents will "go away."
A policy paper from the staff was expected from the staff in July 2012 according to the above document.
And here is a notice of a meeting of July 12, 2012 that I missed:
http://pbadupws.nrc.gov/docs/ML1218/ML12180A009.pdf
Here are slides from the July 12, 2012, meeting. Fretz of NRC e-mailed these July 24, 2012:
http://pbadupws.nrc.gov/docs/ML1220/ML12206A263.pdf
http://pbadupws.nrc.gov/docs/ML1220/ML12206A266.pdf
And here is the order for hardened vents. March 12, 2012:
http://pbadupws.nrc.gov/docs/ML1205/ML12054A694.pdf
And here is the ACRS Fukushima subcommittee meeting of May 28, 2012:
http://pbadupws.nrc.gov/docs/ML1218/ML121850039.pdf
From page 117 of 292:
MR. LEYSE: Yes, this is Bob Leyse and I'll be damned brief because I have said this before.
In terms of a holistic approach, the 2200 degree Fahrenheit criterion that all plants are licensed under, for example, Palo Verde, the Baker-Just equation is based on specimens, zircaloy specimens, that you can handle, walk around in your pocket as pocket change.
In contrast to that, NRC is funding a huge program at Sandia in which bundles of fuel rods, 49-rod bundles, and earlier I guess, some BWR bundles, are tested in air only. For a fraction of the cost of that stuff, you could do the kind of tests that would show in terms of U. S. data that the 2200-Fahrenheit limit is too high.
End of comment.
Following is a page that I have likely posted earlier.
Hardened vents and filtered vents: July report soon?
http://pbadupws.nrc.gov/docs/ML1206/ML120610153.pdf
In the fourth paragraph on page 2 of 3 of the above reference we read "... important that the Commission make a decision on the topic of filtered vents this summer ... ."
Now that the NRC has a new Chairman, it is likely that the Jaczko-inspired focus on filtered vents will "go away."
A policy paper from the staff was expected from the staff in July 2012 according to the above document.
And here is a notice of a meeting of July 12, 2012 that I missed:
http://pbadupws.nrc.gov/docs/ML1218/ML12180A009.pdf
Here are slides from the July 12, 2012, meeting. Fretz of NRC e-mailed these July 24, 2012:
http://pbadupws.nrc.gov/docs/ML1220/ML12206A263.pdf
http://pbadupws.nrc.gov/docs/ML1220/ML12206A266.pdf
And here is the order for hardened vents. March 12, 2012:
http://pbadupws.nrc.gov/docs/ML1205/ML12054A694.pdf
And here is the ACRS Fukushima subcommittee meeting of May 22, 2012:
http://pbadupws.nrc.gov/docs/ML1218/ML121850039.pdf
From page 117 of 292:
MR. LEYSE: Yes, this is Bob Leyse and I'll be damned brief because I have said this before.
In terms of a holistic approach, the 2200 degree Fahrenheit criterion that all plants are licensed under, for example, Palo Verde, the Baker-Just equation is based on specimens, zircaloy specimens, that you can handle, walk around in your pocket as pocket change.
In contrast to that, NRC is funding a huge program at Sandia in which bundles of fuel rods, 49-rod bundles, and earlier I guess, some BWR bundles, are tested in air only. For a fraction of the cost of that stuff, you could do the kind of tests that would show in terms of U. S. data that the 2200-Fahrenheit limit is too high.
End of comment.
Following is a page that I have likely posted earlier.
Saturday, July 7, 2012
Fukushima Nuclear Accident Analysis Report
http://www.nrc.gov/japan/ml12103A092.pdf
A word search under hydrogen yields 87 entries and is a great way to initially scan the report.
Wednesday, July 4, 2012
Wall Street Journal Excerpts Fukushima Seismic
Monday, July 2, 2012
PRM-50-93 Quick access to the NRC delays
http://pbadupws.nrc.gov/docs/ML0932/ML093290250.pdf
Submitted November 17, 2009
Docketed November 23, 2009
Many delays characterise the NRC review of this.
Here is a delay that was described by NRC over a year ago in an internal e-mail dated March 23, 2011.
http://pbadupws.nrc.gov/docs/ML1121/ML11216A081.pdf
Go to page 371 of 899, and the fastest way to get there is via a word search on PRM. The e-mail discloses that "... all qualified NRR/DSS staff who would be qualified to serve on the working group for PRM-50-93/95 are otherwise occupied ... recent events in Japan."
Sunday, July 1, 2012
Thursday, June 28, 2012
In-core thermocouples and SAMGs
http://pbadupws.nrc.gov/docs/ML1216/ML12165a614.pdf
And, the following link is Leyse's PRM-50-105:
http://pbadupws.nrc.gov/docs/ML1206/ML12065a215.pdf
Excerpts from PRM-50-105 and ACRS:
Saturday, June 23, 2012
Saturday, June 16, 2012
Letter Borchardt of NRC to Idaho Senator Risch
http://pbadupws.nrc.gov/docs/ML1205/ML12059A117.pdf
Obama decreed that his feds run an open government, and in this letter, EDO Borchardt declares that this is the case at NRC. Borchardt tells Risch that Leyse need not ask Risch to collect information.
Borchardt declared (lines 7 and 8, second paragraph), "Mr. Leyse can fuly participate in the NRC's activities through direct contact with the agency, as he has in recent years."
Of course, Borchardt's letter is loaded with false assertions regarding the NRC's long history of openness. A great example is this blog's entry of 5/26/12, At last, NUREG/CR-6980.
Friday, June 15, 2012
NRC Fukushima Inside Documents ML11304A106
http://pbadupws.nrc.gov/docs/ML1130/ML11304A106.pdf
Here is another interesting reference, that discusses turmoil at NRC as Fukushima developed.
http://pbadupws.nrc.gov/docs/ML1130/ML11305A209.PDF
Some search leads for NRC ADAMS (MELCOR Gaunt, Fukushima Gaunt)
Thursday, June 7, 2012
ML060520260 and unrelated MELCOR Junk
Important stuff. 96, 97, 27, 28, 90, 354, 125, 124, (all of 372) ...
Unrelated junk expressions that I've heard:
MELCOR as a feeder ....
MELCOR drives training ...
The facts reveal that MELCOR is bunk.
Monday, May 28, 2012
Saturday, May 26, 2012
At last, NUREG/CR-6980
Document A
http://www.nrc.gov/site-help/search.cfm?q=ML12128A368
The Report, NUREG/CR-6980, covers the period Nov 1997- Feb 2003, but it was not published until April 2012! It is a somewhat useless report, and I was aware of that likelihood well before the NRC released it.
In the FORWARD to the report, page 7 of 599, we read, "With improved data and code models for an LBLOCA, we can more accurately predict the consequences of LBLOCA accidents and provide better technical bases for regulations associated with such accidents. As a result, this study will help to achieve the NRC's strategic performance goals of making the agency's regulations more efficient, effective, and realistic."
It has been no secret that the NRC's Rod Bundle Heat Transfer (RBHT) at Penn State is essentially useless for modelling an LBLOCA because the test section includes no zirconium alloy structures, especially the fuel rod simulators which have inconel cladding. The RBHT has been operated with cladding temperatures less than 1800 degrees Fahrenheit, well below the NRC's Appendix K limit of 2200 degrees Fahrenheit.
Aside from the fundamental defects in the design of the RBHT and the very limited scope of its test program (the low temperatures of the tests and the absence of zirconium alloy structures), the report NUREG/CR-6980 does not include any discussion of the test results. For example, in one run, there were very large temperature oscillations. I have sent the following e-mail to the lead investigator at Penn State's Applied Research Laboratory.
Document C
http://pbadupws.nrc.gov/docs/ML0412/ML041210109.pdf
Document E Leyse e-mail to chairman (PM-50-76)
http://pbadupws.nrc.gov/docs/ML1005/ML100500035.pdf
Document F SECY-05-0113 20 pages
http://www.nrc.gov/reading-rm/doc-collections/commission/cvr/2005/2005-0113vtr.pdf
Document G SECY-05-0113 32 pages
http://pbadupws.nrc.gov/docs/ML0502/ML050250359.pdf
Sunday, May 13, 2012
Friday, May 11, 2012
DOE and $125 million Another OBAMA white elephant
DOE slides; my comments will follow sometime.
https://ric.nrc-gateway.gov/docs/abstracts/kothe-d-hv-th28.pdf
Thermal Hydraulics R&D Plans and Efforts
within CASL: The Consortium for Advanced
Simulation of Light Water Reactors
CASL is a DOE Energy Innovation Hub for
Modeling and Simulation of Nuclear Reactors
CASL Charter
Mission
Provide leading edge modeling and simulation capabilities to improve the
performance of currently operating Light Water Reactors
Vision
Predict, with confidence, the safe, reliable performance of nuclear reactors, through comprehensive, science-based modeling and simulation technology that is deployed and applied broadly within the U.S. nuclear energy industry
Goals
1. Develop and Effectively Apply Modern Virtual Reactor Technology
2. Assure Nuclear Safety and Address Operational and Design Challenges
3. Engage the Nuclear Energy Community Through Modeling and Simulation
4. Deploy New Partnership and Collaboration Paradigms
Sunday, May 6, 2012
NRC Safety Research Program and Obama Open Government
Dear Senator Risch:
Please encourage the NRC to now release SECY-12-0013 to the American Public. Details are below:
NRC recently published the ACRS review of its research program. There are leads to closed material. Here is the identification of the ACRS open report:
REVIEW AND EVALUATION OF THE NRC SAFETY RESEARCH PROGRAM
NUREG-1635, Vol. 10 APRIL 2012 ML12094A142
And, here is an example of the closed performance of Obama’s "open" government:
From Page 83 0f 84 of ML12094A142 (Page 71 of the report):
Reference 2.
Memorandum to the Commissioners
from R. W. Borchardt, Executive Director for Operations,
Subject: SECY-12-0013,
“Agency Long-Term Research Activities for Fiscal Year 2014,"
(Official Use Only Document - Sensitive Internal Information - Limited to NRC unless the Commission Determines Otherwise)
Very likely, a wide assortment of insiders has access to SECY-12-0013 (including the twenty foreign governments that NRC has enrolled in its Severe Accident Research Program). The American Public should also have access to this. Furthermore, interested Americans should be encouraged to participate in suggesting the scope of the NRC research activities. For example, my PRM-50-76 has been in the hands of NRC since MAYDAY 2002; nevertheless, NRC ignores the dangers to the American Public of zirconium oxidation and hydrogen release during loss-of-coolant accidents.
Robert H. Leyse
Tuesday, April 10, 2012
2002 docs, Hochreiter, Hache, Myers others
Accession Number: ML023050480
Date Released: Wednesday, November 6, 2002
Package Contents
The following links on this page are to Adobe Portable Document Format (PDF) files. To obtain a free viewer for displaying this format, see our Plugins, Viewers, and Other Tools.
ML023050477 - Readme. (1 page(s), 10/29/2002)
ML023040648 - Bessiron Slides - Main Outcomes of the Patricia Program Presented at NSRC in Washington, DC on 10/29/2002. (14 page(s), 10/29/2002)
ML023040652 - Bessiron Summary - Main outcomes from the PATRICIA programon clad to coolant heat transfer during RIAs. (2 page(s), 10/29/2002)
ML023040653 - Hache Slides entitled, "Oxidation of Zr Alloys in High Pressure Steam & Some Results Under Atmospheric Pressure" presented at Nuclear Safety Research Conference 2002 in Washington, DC on October 28-30, 2002. (38 page(s), 10/29/2002)
ML023040656 - Hache Summary - Oxidation of Zirconium Alloys in High Pressure Steam & Some Results Under Atmospheric Pressure. (2 page(s), 10/29/2002)
ML023040657 - Hochreiter Slides - Penn State/US NRC Rod Bundle Test Facility & Reflood Heat Transfer Program (RBHT). (35 page(s), 10/29/2002)
ML023040658 - Hochreiter Summary - US NRC/PSU Rod Bundle Heat Transfer Program. (3 page(s), 10/29/2002)
ML023050060 - McGrath Slides entitled, "Investigation of the Impact of In-Reactor Short-Term Dry-Out Incidents on Fresh & Pre-Irradiated Fuel Cladding." (26 page(s), 10/29/2002)
ML023050061 - McGrath Summary - Investigation of the Impact of In-Reactor Short-Term Dry-Out Incidents on Fresh & Pre-Irradiated Fuel Cladding. (2 page(s), 10/29/2002)
ML023050065 - Meyer Slides - LOCA Ductility Tests. (14 page(s), 10/29/2002)
ML023050070 - Meyer Summary - LOCA Ductility Tests. (2 page(s), 10/29/2002)
ML023050073 - Nakamura Slides. (22 page(s), 10/29/2002)
ML023050077 - Nakamura Summary. (2 page(s), 10/29/2002)
ML023050083 - Pierron Slides - Influence of Hydride Distribution on Failure of Zircaloy-4 Sheet. (18 page(s), 10/29/2002)
ML023050086 - Pierron Summary - Influence of Hydride Distribution on the Failure of Zircaloy. (2 page(s), 10/29/2002)
ML023050234 - Tsai Slides - Characterization of High-Burnup PWR & BWR Rods. (25 page(s), 10/29/2002)
ML023050236 - Tsai Summary - Characterization of High-Burnup PWR & BWR Rods. (2 page(s), 10/29/2002)
ML023050238 - Yan Slides - LOCA Research Results for High-Burnup BWR Fuel. (39 page(s), 10/29/2002)
ML023050240 - Yan Summary - LOCA Research Results for High-Burnup BWR Fuel. (2 page(s), 10/29/2002)
ML023050244 - Yegorova Slides - Understanding LOCA-Related Ductility in E110 Cladding. (18 page(s), 10/29/2002)
ML023050248 - Yegorova Summary. (3 page(s), 10/29/2002)
ML023050429 - Pierron Slides A - Influence of Hydride Distribution on Failure of Zircaloy-4 Sheet. (18 page(s), 10/29/2002)
ML023050464 - Meyer Slides A - LOCA Ductility Tests. (15 page(s), 10/29/2002)
Thursday, March 29, 2012
Baker-Just, ANL-6548, WAPD-104, BMI-1154, Zirconium Fire (Bundles)
Zirconium Fire Testing at Sandia
ML11031A000, page 58 of 226
http://pbadupws.nrc.gov/docs/ML1103/ML11031A000.pdf
Phase 2 will address radial heating and burn propagation and
will include effects of fuel rod ballooning. Five full-length
assemblies will be constructed in which the center assembly
will be of the same heated design as used in Phase 1. The four
peripheral assemblies will be unheated but highly prototypic,
incorporating prototypic fuel tubes and end plugs. These
boundary conditions experimentally represent a “cold neighbor”
situation, which complements the bounding scenario covered by
Phase 1. The peripheral fuel rods will be filled with high density
MgO ceramic, sized to precisely match the thermal mass of spent
fuel. Studies using this test assembly will conclude with a fire
test in which the center assembly is heated to ignition, which
eventually propagates radially to the peripheral assemblies. All
of the fuel rods in two of the four peripheral assemblies will be
pressurized with helium so that these fuel rods will balloon when
the zirconium-alloy cladding reaches a high enough temperature.
The two peripheral assemblies without pressurized rods will serve
as a control for evaluating the effect of ballooning.
Here is one reference that was released on January 3, 2012: (ML113140453) - RES Staff Presentation Handouts Materials NRC-RES/EPRI Coordination Meeting Friday, September 30, 2011, (23 page(s), 12/22/2011). The release on January 3, 2012, disclosed that the corrosion testing of full-length heated bundles of zirconium alloy assemblies is being done at Sandia, it has 12 foreign participants, the full length assemblies are 17 by 17 arrangements of PWR fuel geometry, and testing is being done in air only.
The following cross sections of the zirconium clad heater bundles at Sandia are copied (and enlarged) from ML113140453, page 4 of 23.
http://pbadupws.nrc.gov/docs/ML1131/ML113140453.pdf
Analysis Support
As in the previous BWR study, all stages of testing will use
MELCOR modeling results. Pretest MELCOR modeling results
will be used to guide the experimental test assembly design and
instrumentation. MELCOR modeling results will also be used
to choose experimental operating parameters, such as the applied
assembly power. At each step in the testing, improvements
will be made to the MELCOR model to continually increase
confidence in the modeling validity.
Monday, March 26, 2012
TH28 Thermal-Hydraulic and Severe Accident Research
TH28 Thermal-Hydraulic and Severe Accident Research
The session will focus primarily on the NRC’s efforts to address current issues in the areas of thermal hydraulics and severe accidents, including experimental and analytical tool development programs. In particular, presenters will discuss the following topics:
The NRC’s use of computational fluid dynamics codes
Use of SCALE to generate neutrons cross sections libraries in support of PARCS/TRACE reactor analysis activities
Coupled calculation in TRACE-PARCS code
MELCOR, the severe accident code
Overview of DOE’s thermal-hydraulics modeling and simulation R&D within the Consortium for Advanced Simulation of LWRs (CASL)
SESSION CHAIR: Michael Scott, Deputy Director, Division of Systems Analysis, NRC/RES
SPEAKERS/PANELISTS:
Computational Fluid Dynamics for Nuclear Safety AnalysisChristopher Boyd, Sr. Technical Advisor for Computational Fluid Dynamics, Division of Systems Analysis, NRC/RES
Use of SCALE to Generate Neutrons Cross-Sections Libraries in Support of PARCS/TRACE Reactor Analysis ActivitiesMourad Aissa, Sr. Criticality Safety/Reactor Physics Engineer, Division of Systems Analysis, NRC/RES
TRACE/PARCS Coupled CalculationsNathanael Hudson, Reactor Systems Engineer, Division of Systems Analysis, NRC/RES
Development and Applications of MELCORHossein Esmaili, Sr. Reactor Systems Engineer, Division of Systems Analysis, NRC/RES
Thermal Hydraulics Modeling and Simulation R&D within the Consortium for Advanced Simulation of LWRs (CASL): A DOE Energy Innovation HubDouglas Kothe, Director, Consortium for the Advanced Simulation of Light Water Reactors (CASL), Oak Ridge National Laboratory
SESSION COORDINATOR(S):
Antony Calvo, Information Technology Specialist, Division of Systems Analysis, NRC/RES, tel: 301-251-7677, e-mail: Antony.Calvo@nrc.gov
Thursday, March 22, 2012
PRM-50-76: Nuclear Regulatory Commission Defective Actions
http://pbadupws.nrc.gov/docs/ML0222/ML022240009.pdf
Here is NRC's Technical Analysis of PRM-50-76:
http://pbadupws.nrc.gov/docs/ML0412/ML041210109.pdf
Here is the submittal to the Commissioners that requests approval of the denial of PRM-50-76, June 29, 2005, ML050250359.
http://pbadupws.nrc.gov/docs/ML0502/ML050250359.pdf
Here is the voting record, August 5, 2005
http://www.nrc.gov/reading-rm/doc-collections/commission/cvr/2005/2005-0113vtr.pdf
Here is the Staff Requirements Memorandum, August 5, 2005, ML052170385.
http://pbadupws.nrc.gov/docs/ML0521/ML052170385.pdf
Here is the denial of PRM-50-76, August 25, 2005.
http://pbadupws.nrc.gov/docs/ML0522/ML052220454.pdf
Here is a letter from McGinty to Leyse
http://pbadupws.nrc.gov/docs/ML1009/ML100950085.pdf
http://pbadupws.nrc.gov/docs/ML1009/ML100950085.pdf
Following is page 1 of a letter from Timothy McGinty, Director, Division of Policy and Rulemaking, Office of Nuclear Reactor Regulation, to Robert Leyse, April 16, 2010, ML100950085. This letter describes the release of documents that were referenced in the June 29, 2005, request to the Commissioners to deny PRM-50-76, but which were not published in the Federal Register notice of the denial. Robert Leyse did not become aware of this discrepancy until early in 2010 and he then called for the release of the documents. However, NRC never disclosed this to the Commissioners and this omission was also never published in the Federal Register. Note that McGinty writes, "The NRC staff decided to remove the references because (1) they did not constitute a significant part of the basis for denying the petition0n and (2) the reports were not then available in the NRC's files."
April 16, 2010
Robert Leyse
P. O. Box 2850
Sun Valley, ID 83353
Dear Mr. Leyse:
Between February 7, 2010, and February 23, 2010, you sent a series of e-mails to the
Chairman of the U.S. Nuclear Regulatory Commission (NRC) and to other NRC employees,
including General Counsel Stephen Burns and staff from the Public Document Room. You
requested that the NRC make the following documents publicly available:
Bostrum, W.A., WAPD-104, “The High Temperature Oxidation of Zircaloy in
Water,” March 1954.
Lemmon, Jr., A.W. BMI-1154, “Studies Relating to the Reaction Between
Zirconium and Water at High Temperatures,” 1957.
In your February 17, 2010, e-mail to the General Counsel, you alleged that these two
documents were not made publicly available by the NRC staff in contradiction to the listing of
these two documents in a table describing the availability of documents in a draft Federal
Register Notice (FRN) of denial of a petition for rulemaking. The draft FRN was provided to the
Commission in SECY-05-113, “Denial of a Petition for Rulemaking to Revise Appendix K to
Title 10 of the Code of Federal Regulations Part 50 and Associated Guidance Documents
(PRM-50-76),” June 29, 2005.
Although these reports were listed in the draft FRN of denial, they were not referenced or listed
in the final denial of the petition for rulemaking (see 70 FR 52893; September 6, 2005). The
NRC staff decided to remove the references to these two documents in the final FRN because
(1) they did not constitute a significant part of the basis for denying the petition and (2) the
reports were not then available in the NRC's files. You should also be aware that WAPD-104
was prepared in 1954 for the Atomic Energy Commission’s office for naval reactors. When the
NRC was created in 1974, records related to naval reactors were assigned to the Energy
Research and Development Administration (which is now the U.S. Department of Energy).
Nevertheless, the NRC has been able to obtain copies of the above reports. They are now
publicly available in the NRC’s Agencywide Documents Access Management System (ADAMS)
at the following ADAMS Accession numbers:
WAPD-104—ADAMS Accession No. ML100900446
http://pbadupws.nrc.gov/docs/ML1009/ML100900446.pdf
BMI-1154—ADAMS Accession No. ML100570218
http://pbadupws.nrc.gov/docs/ML1005/ML100570218.pdf
Here is the Baker-Just Report, ANL-6548, that is based on WAPD-104 and BMI-1154.
Tuesday, March 20, 2012
Accident Management Advisory Tools (AMAT)
A few decades ago, ACRS discussed Instrumentation to Follow the Course of an Accident and they may have written a letter or two.
After TMI-2, some vendors sold Safety Panel Display Systems.