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1,248
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331
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225
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12
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12
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11
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11
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8
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5,002
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1,248
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242
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199
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195
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96
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83
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Degree Department
Country
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Day
TMI-2 accident: core heat-up analysis
This report summarizes NSAC study of reactor core thermal conditions during the accident at Three Mile Island, Unit 2. The study focuses primarily on the time period from core uncovery (approximately 113 minutes after turbine trip) through the initiation of sustained high pressure injection (after 202 minutes). The transient analysis is based upon established sequences of events; plant data; post-accident measurements; interpretation or indirect use of instrument responses to accident conditions.
Date:
January 1, 1981
Creator:
Ardron, K.H. & Cain, D.G.
Object Type:
Report
System:
The UNT Digital Library
Gas cooled fast reactor control rod drive mechanism deceleration unit. Test program
This report presents the results of the airtesting portion of the proof-of-principle testing of a Control Rod Scram Deceleration Device developed for use in the Gas Cooled Fast Reactor (GCFR). The device utilizes a grooved flywheel to decelerate the translating assembly (T/A). Two cam followers on the translating assembly travel in the flywheel grooves and transfer the energy of the T/A to the flywheel. The grooves in the flywheel are straight for most of the flywheel length. Near the bottom of the T/A stroke the grooves are spiraled in a decreasing slope helix so that the cam followers accelerate the flywheel as they transfer the energy of the falling T/A. To expedite proof-of-principle testing, some of the materials used in the fabrication of certain test article components were not prototypic. With these exceptions the concept appears to be acceptable. The initial test of 300 scrams was completed with only one failure and the failure was that of a non-prototypic cam follower outer sleeve material.
Date:
October 1, 1981
Creator:
Wagner, T.H.
Object Type:
Report
System:
The UNT Digital Library
New Jersey State Briefing Book for low-level radioactive waste management
The New Jersey state Briefing Book is one of a series of State briefing books on low-level radioactive waste management practices. It has been prepared to assist state and federal agency officials in planning for safe low-level radioactive waste disposal. The report contains a profile of low-level radioactive waste generators in New Jersey. The profile is the result of a survey of NRC licensees in New Jersey. The briefing book also contains a comprehensive assessment of low-level radioactive waste management issues and concerns as defined by all major interested parties including industry, government, the media, and interest groups. The assessment was developed through personal communications with representatives of interested parties, and through a review of media sources. Lastly, the briefing book provides demographic and socioeconomic data and a discussion of relevant government agencies and activities, all of which may impact waste management practices in New Jersey.
Date:
April 1, 1981
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Texas State Briefing Book for low-level radioactive waste management
The Texas State Briefing Book is one of a series of state briefing books on low-level radioactivee waste management practices. It has been prepared to assist state and federal agency officials in planning for safe low-level radioactive waste disposal. The report contains a profile of low-level radioactive waste generators in Texas. The profile is the result of a survey of NRC licensees in Texas. The briefing book also contains a comprehensive assessment of low-level radioactive waste management issues and concerns as defined by all major interested parties including industry, government, the media, and interest groups. The assessment was developed through personal communications with representatives of interested parties, and through a review of media sources. Lastly, the briefing book provides demographic and socioeconomic data and a discussion of relevant government agencies and activities, all of which may impact waste management practices in Texas.
Date:
August 1, 1981
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Pyrolysis mechanisms. Quarterly report, April-June 1981
The data acquisition system for fast pyrolysis studies is summarized and discussed, based on preliminary applications to fast scans and peak switching of the quadrupole mass spectrometer. The free-jet expansion phenomena of internal-state cooling and clustering are discussed in terms of their relevance to pyrolysis product sampling interpretation. Primary pyrolysis spectra are shown for cotton, wood, and steam-exploded extracted lignin. Both pulsed and steady-state pyrolysis were used to observe the secondary cracking of cotton, wood, levoglucosan, glycerol, and methanol in steam-argon at a nominal 900/sup 0/C. The general plan of future studies is presented.
Date:
December 1, 1981
Creator:
Milne, T.A. & Soltys, M.N.
Object Type:
Report
System:
The UNT Digital Library
Operating procedure for combined Auger - and ellipsometer uhv-system
Operating instructions are given for conducting ion etching and Auger analysis of surface layers with laboratory-built equipment which provides for the simultaneous use of ellipsometry.
Date:
November 1, 1981
Creator:
Schwager, F.
Object Type:
Report
System:
The UNT Digital Library
Prototype steam generator test at SCTI/ETEC. Acoustic program test plan. [LMFBR]
This document is an integrated test plan covering programs at General Electric (ARSD), Rockwell International (RI) and Argonne National Laboratory (CT). It provides an overview of the acoustic leak detection test program which will be completed in conjunction with the prototype LMFBR steam generator at the Energy Technology Engineering Laboratory. The steam generator is installed in the Sodium Components Test Installation (SCTI). Two acoustic detection systems will be used during the test program, a low frequency system developed by GE-ARSD (GAAD system) and a high frequency system developed by RI-AI (HALD system). These systems will be used to acquire data on background noise during the thermal-hydraulic test program. Injection devices were installed during fabrication of the prototype steam generator to provide localized noise sources in the active region of the tube bundle. These injectors will be operated during the steam generator test program, and it will be shown that they are detected by the acoustic systems.
Date:
October 1, 1981
Creator:
Greene, D. A.; Thiele, A. & Claytor, T. N.
Object Type:
Report
System:
The UNT Digital Library
Basalt waste isolation project. Quarterly report, April 1, 1981-June 30, 1981
This document reports progress made in the Basalt Waste Isolation Project during the third quarter of fiscal year 1981. Efforts are described for the following programs of the project work breakdown structure: systems; waste package; site; repository; regulatory and institutional; test facilities; in situ test facilities.
Date:
August 1, 1981
Creator:
Deju, R.A.
Object Type:
Report
System:
The UNT Digital Library
Fairchild Stratos Division's Type II prototype lockhopper valve: METC Prototype Test Valve No. F-1 prototype lockhopper valve-testing and development project. Static test report
METC Prototype Test Valve No. F-1 is a hybrid design, based on a segmented ball termed a visor valve, developed and manufactured by Fairchild Stratos Division under contract to the Department of Energy. The valve uses a visor arm that rotates into position and then translates to seal. This valve conditionally completed static testing at METC with clean gas to pressures of 1600 psig and internal valve temperatures to 600/sup 0/F. External leakage was excessive due to leakage through the stuffing box, purge fittings, external bolts, and other assemblies. The stuffing box was repacked several times and redesigned midway through the testing, but external leakage was still excessive. Internal leakage through the seats, except for a few anomalies, was very low throughout the 2409 cycles of testing. As shown by the low internal leakage, the visor valve concept appears to have potential for lock-hopper valve applications. The problems that are present with METC Prototype Test Valve No. F-1 are in the seals, which are equivalent to the shaft and bonnet seals in standard valve designs. The operating conditions at these seals are well within the capabilities of available seal designs and materials. Further engineering and minor modifications should be able …
Date:
October 1, 1981
Creator:
Goff, D. R.; Cutright, R. L.; Griffith, R. A.; Loomis, R. B.; Maxfield, D. A. & Moritz, R. S.
Object Type:
Report
System:
The UNT Digital Library
Structural assessment approach (SAA) input package. Volume 3: User's Manual (physical security)
The operation and use of the Structured Assessment Approach (SAA) Input Package programming written for a Tektronix 4050 Series Computer is described. The programming consists of the Facility Description Program (described in this volume) and its continuation, the Accounting System Program (planned), plus several service routines. These programs generate the input files that are used by the SAA codes in a mainframe computer, such as the CDC 7600 at the Lawrence Livermore National Laboratory.
Date:
June 1, 1981
Creator:
Orvis, W.J.
Object Type:
Report
System:
The UNT Digital Library
Technique for measuring the fast /sub 3/He/sup + +/ distribution during /sub 3/He/sup + +/ minority ICRF heating
A technique for measuring the fast /sub 3/He/sup + +/ distribution during /sub 3/He/sup + +/ minority ICRF heating is discussed. The technique involves the use of 10 to 100 keV neutral helium beams to neutralize the fast /sub 3/He/sup + +/ ions by double charge exchange (/sub 3/He/sup + +/ + /sub 4/He/sup 0/ ..-->.. /sub 3/He/sup 0/ + /sub 4/He/sup + +/). The neutralized fast /sub 3/He atoms then escape from the plasma and are detected by conventional neutral particle analyzing apparatus. By the use of such a technique, the effectiveness of the coupling of the ion cyclotron waves to the /sub 3/He/sup + +/ minority could be measured.
Date:
December 1, 1981
Creator:
Post, D. E.; Grisham, L. R. & Medley, S. S.
Object Type:
Report
System:
The UNT Digital Library
MHD performance demonstration experiment, October 1, 1080-September 30, 1981
The Arnold Engineering Development Center (AEDC) has been under contract with the Department of Energy (DOE) since December 1973 to conduct a magnetohydrodynamic (MHD) High Performance Demonstration Experiment (HPDE). The objective of this experimental research is to demonstrate the attainment of MHD performance on a sufficiently large scale to verify that projected commercial MHD objectives are possible. This report describes the testing of the system under power-producing conditions during the period from October 1, 1980 to September 30, 1981. Experimental results have been obtained with the channel configured in the Faraday mode. Test conditions were selected to produce low supersonic velocity along the entire channel length. Tests have been conducted at magnetic fields up to 4.1 Tesla (T) (70% of design). Up to 30.5 MW of power has been produced to date (60% of design) for an enthalpy extraction of approximately 11%. The high Hall voltage transient, observed during the previous series of tests has been reduced. The reduction is mostly probably due to the fuel and seed being introduced simultaneously. The replacement of the ATJ graphite caps on the electrode walls with pyrolytic graphite caps has resulted in significantly higher surface temperature. As a result, the voltage drop is …
Date:
December 1, 1981
Creator:
Whitehead, G. L.; Christenson, L. S.; Felderman, E. J.; Lowry, R. L. & Bordenet, E. J.
Object Type:
Report
System:
The UNT Digital Library
Pennsylvania State Briefing Book for low-level radioactive waste management
The Pennsylvania State Briefing Book is one of a series of state briefing books on low-level radioactive waste management practices. It has been prepared to assist state and federal agency officials in planning for safe low-level radioactive waste disposal. The report contains a profile of low-level radioactive waste generators in Pennsylvania. The profile is the result of a survey of NRC licensees in Pennsylvania. The briefing book also contains a comprehensive assessment of low-level radioactive waste management issues and concerns as defined by all major interested parties including industry, government, the media, and interest groups. The assessment was developed through personal communications with representatives of interested parties, and through a review of media sources. Lastly, the briefing book provides demographic and socioeconomic data and a discussion of relevant government agencies and activities, all of which may impact waste management practices in Pennsylvania.
Date:
April 1, 1981
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Chemistry and morphology of coal liquefaction. Quarterly report, October 1-December 31, 1981
Progress reports are presented for the following six tasks: (1) selective synthesis of gasoline range components from synthesis gas; (2) electron microscopy studies of coal during hydrogenation; (3) catalysed low temperature hydrogenation of coal; (4) selctive hydrogenation, hydrogenolysis and alkylation of coal and coal liquids by organo-metallic systems; (5) chemistry of coal solubilization and liquefaction; (6) coal conversion catalysts-deactivation studies. Highlights are as follows: (1) In the presence of hydrogen and the absence of base, using the catalyst RuCl/sub 2/ (CO)/sub 2/ (phi/sub 3/ P)/sub 2/ excellent yields of reduced polynuclear heteroaromatic nitrogen compound were produced with 100% selectivity for the N-containing ring. (2) A careful gas chromatographic analysis of Fischer-Tropsch products has shown that major peaks, previously thought to be single compounds are composites of two or more compounds. Resolution of these peaks will enable one to establish a rational grouping of n/i and paraffin/olefin ratios. (3) Addition of iron or rhodium to potassium impregnated graphite did not result in the production of heavier hydrocarbons than methane from the graphite-steam reaction at low temperature. However, small amounts of iron enhanced the methane production. (ATT)
Date:
December 1, 1981
Creator:
Heinemann, H.
Object Type:
Report
System:
The UNT Digital Library
Conceptual design of a laser fusion power plant. Part I. An integrated facility
This study is a new preliminary conceptual design and economic analysis of an inertial confinement fusion (ICF) power plant performed by Bechtel under the direction of Lawrence Livermore National Laboratory (LLNL). The purpose of a new conceptual design is to examine alternatives to the LLNL HYLIFE power plant and to incorporate information from the recent liquid metal cooled power plant conceptual design study (CDS) into the reactor system and balance of plant design. A key issue in the design of a laser fusion power plant is the degree of symmetry in the illumination of the target that will be required for a proper burn. Because this matter is expected to remain unresolved for some time, another purpose of this study is to determine the effect of symmetry requirements on the total plant size, layout, and cost.
Date:
July 1, 1981
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Advanced international training course on state systems of accounting for and control of nuclear materials
This report incorporates all lectures and presentations at the Advanced International Training Course on State Systems of Accounting for and Control of Nuclear Material held April 27 through May 12, 1981 at Santa Fe and Los Alamos, New Mexico, and Richland, Washington, USA. Authorized by the US Nuclear Non-Proliferation Act and sponsored by the US Department of Energy in cooperation with the International Atomic Energy Agency, the course was developed to provide practical training in the design, implementation, and operation of a state system of nuclear materials accountability and control that satisfies both national and international safeguards. Major emphasis for the 1981 course was placed on safeguards methods used at bulk-handling facilities, particularly low-enriched uranium conversion and fuel fabrication plants. The course was conducted by the University of California's Los Alamos National Laboratory, the Battelle Pacific Northwest Laboratory, and Exxon Nuclear Company, Inc. Tours and demonstrations were arranged at both the Los Alamos National Laboratory, Los Alamos, New Mexico, and the Exxon Nuclear fuel fabrication plant, Richland, Washington.
Date:
October 1, 1981
Creator:
unknown
Object Type:
Article
System:
The UNT Digital Library
Total field aeromagnetic map of the Long Valley Geothermal Resource Area, California by the US Geological Survey
None
Date:
January 1, 1981
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
First-year evaluation of low-level waste-management stabilization techniques
The first year of observation for effectiveness of biobarriers and herbicides in revegetation efforts demonstrated that certain practices will result in successful site stabilization: proper orientation of burial trench to reduce erosion; utilization of mulches to conserve moisture; seeding mixed perennial or annual grass species at the proper time for optimization of establishment and growth; and applying 2,4-D amine/Dicamba selective herbicide at the optimum time for enhancement of disirable grasses and reduction of competition from other species. The ultimate success or failure of a revegetation operation depends in part on the availability of equipment and manpower, weather conditions, and engineering feasibility. The data indicated that perennial grasses offered advantages over annual grasses and that the 2,4-D amine/Dicamba herbicide spray program was successful and should be expanded for next year. However, programmatic decisions should not be based on the data for 1 year, but should be based on data gathered over the full 3 years of the project.
Date:
December 1, 1981
Creator:
Cox, G.R.
Object Type:
Report
System:
The UNT Digital Library
Compilation and summary of technical and economic assessments in the field of energy storage
Information is presented which was extracted from various assessments of energy storage technologies conducted during the past four years, primarily under the auspices of the Office of Energy Systems Research and Development (formerly the Division of Energy Storage Systems). A thorough search of the relevant literature was conducted using the DOE/RECON computerized data base and other sources. Only tabular or graphic material was abstracted from the documents. The material has been organized in two ways: by the intended end use, i.e., vehicles, utility load leveling, residential load leveling, industrial, and solar, and within each end use, by technology. The summary tables attempt to compare the results of different studies of the same technology or end use. No attempt is made to summarize the conclusions of each individual study, but rather to point out areas of agreement or disagreement between them. The reader should be aware of the risks in making comparisons between studies conducted by researchers with possibly differing purposes and assumptions. Any conclusions based on the summary sections are more indicative than definitive.
Date:
October 1, 1981
Creator:
DeVries, J.
Object Type:
Report
System:
The UNT Digital Library
SRC-1 quarterly technical report, April-June 1981
Volume 2 consists of further evaluations required for the design of the demonstration plant: in particular, (1) a comparison of the performance and analytical characterization of several recycle solvents which developed in various pilot plants or with specific coals, and (2) the catalytic effects of residues or minerals on dissolver performance (There are several papers on the latter problem; the results are relatively small but significant in terms of plant performance and somewhat complex; it may help to read the last paper first, since the nature of the results was somewhat better understood by the time it was written and some problems and inconsistenices resolved to some degree). (LTN)
Date:
October 1, 1981
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Geothermal well cements: current status of R and D and downhole testing
The status as of October 1981 of the program to develop and test geothermal well cementing materials. The program represents the most comprehensive and thorough examination of the geothermal cementing problem undertaken thus far. To date, 27 cements identified in an R and D phase of the program or supplied by industry have been evaluated in laboratory tests. Sixteen of these materials were selected for downhole investigations currently in progress in Mexico at Cerro Prieto. Data for 3 months exposures to flowing brine at 210{sup 0}C are available. Most of the cements continue to meet the strength and permeability acceptance criteria. These results should be reassuring to operators who are using such slurries. Further evaluations are planned after 6 and 12 months exposures. Contingent upon these results, tests will be initiated at 350{sup 0}C. Since many of the cements were formulated specifically for use at temperatures above 300/sup 0/C, it is expected that significant property improvements may be observed as the downhole temperature is increased.
Date:
November 1, 1981
Creator:
Kukacka, L. E.
Object Type:
Article
System:
The UNT Digital Library
Investigation of methods for the selective removal and characterization of transition metals associated with solids in the marine environment
The operation of an OTEC plant will result in the mixing of large volumes of seawater from different depths within the ocean. Because suspended particulate material is intimately involved in marine food webs and transition metals, such as copper, can have toxic effects, it is important to develop a sound methodology for characterizing and quantifying transition metal behavior associated with the solid material. The characterization of solid-phase-associated transition metals in the marine environment has largely been directed at marine sediments. These studies have generally indicated that it is not possible to uniquely identify the solid phases or chemical speciation of a given metal. There are many reasons for this difficulty, but the probable major analytical problems arise from the fact that many of the transition metals of interest are present only in trace concentrations as adsorbed species on amorphous oxides or as coprecipitates. In one approach transition metals are classified according to how easily they are solubilized when exposed to different types of chemical attack, as defined in chemical extraction schemes. In this study, several of the most widely accepted extraction techniques were compared for many of the most commonly measured transition metals to a variety of marine sediments. Based …
Date:
February 1, 1981
Creator:
Van Valin, R. & Morse, J. W.
Object Type:
Report
System:
The UNT Digital Library
Proceedings of the workshop on the impact of hydrogen on water reactor safety. Volume III of IV
Separate abstracts were prepared for the papers presented in the area of: combustion, experiments and analysis.
Date:
September 1, 1981
Creator:
Berman, M. (ed.)
Object Type:
Article
System:
The UNT Digital Library
ATA diagnostic beam dump conceptual design
A diagnostic beam dump, able to withstand 72,000 pulses (10 kA, 50 MeV/pulse) per shift was designed and analyzed. The analysis shows that the conceptual beam dump design consisting of 80 vitreous carbon plate-foam elements is able to withstand the thermal and mechanical stresses generated. X-rays produced by bremsstrahlung are absorbed by a three element copper plate-foam x-ray absorber. Cooling between bursts of electron pulses is provided by pressurized helium.
Date:
September 1, 1981
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library