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Proceedings of the Workshop on Geothermal Reservoir Engineering
28
Winter Fuels Report
17
Fiscal Year 1999
11
Fiscal Year 2000
9
Journal of Undergraduate Research
9
Notes of Monthly Component Test Program Review Meeting Held with SNPO at WANL
9
OIT Best Practices
8
Saxton Plutonium Project Quarterly Progress Report
8
Distributed Energy & Electric Reliability Fact Sheets
7
Fiscal Year 2006
7
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Advancement of Remote Technology: Past Perspectives and Future Plans
In the Consolidated Fuel Reprocessing Program at the Oak Ridge National Laboratory, a comprehensive remote systems development program has existed for the past five years. The new remote technology under development is expected to significantly improve remote operations by extending the range of admissible remote tasks and increasing remote work efficiency. The motivation and justification for the program are discussed by surveying the 40 years of remote operating experience which exists and considering the essential features of various old and new philosophies which have been, or are being, used in remote engineering. A future direction based upon the Remotex concept is explained, and recent progress in the development of an advanced servomanipulator-based maintenance concept is summarized to show that a new generation of remote systems capability is feasible through advanced technology. 20 references, 10 figures, 1 table.
Date:
January 1, 1984
Creator:
Feldman, M. J. & Hamel, W. R.
Object Type:
Article
System:
The UNT Digital Library
Application of Bar Codes to the Automation of Analytical Sample Data Collection
The Health Protection Department at the Savannah River Plant collects 500 urine samples per day for tritium analyses. Prior to automation, all sample information was compiled manually. Bar code technology was chosen for automating this program because it provides a more accurate, efficient, and inexpensive method for data entry. The system has three major functions: sample labeling is accomplished at remote bar code label stations composed of an Intermec 8220 (Intermec Corp.) interfaced to an IBM-PC, data collection is done on a central VAX 11/730 (Digital Equipment Corp.). Bar code readers are used to log-in samples to be analyzed on liquid scintillation counters. The VAX 11/730 processes the data and generates reports, data storage is on the VAX 11/730 and backed up on the plant's central computer. A brief description of several other bar code applications at the Savannah River Plant is also presented.
Date:
January 1, 1986
Creator:
Jurgensen, H. A.
Object Type:
Article
System:
The UNT Digital Library
Apex Accelerator Cycle for Transmutation of Long-Lived Fission Wastes
Based on preliminary studies, some conclusions can be drawn concerning the Accelerator Fuel Enricher and Fission Product Exterminator (APEX). APEX-1 and APEX-2 systems can destroy TU's, /sup 137/Cs, and /sup 90/Sr at acceptable cost and efficiency. The principal difference between APEX-1 and APEX-2 is the in-reactor and in-circuit inventory of /sup 137/Cs and /sup 90/Sr. Stable and low hazard wastes can be disposed of by burial. Accelerator breeders can effectively sustain a fission reactor economy indefinitely. Military waste can be blended into commercial fuel cycle for transmutation. Accelerator and target technologies appear practical and could be developed in a few years. More detailed studies are needed to better define the technical and economic features of the LAFER and APEX cycles, so that comparative assessments can be made between these cycles, as well as with other transmutation and waste disposal concepts.
Date:
January 1, 1980
Creator:
Powell, J.; Steinberg, M.; Takahashi, H.; Grand, P.; Botts, T. & Kouts, H. J. C.
Object Type:
Article
System:
The UNT Digital Library
Avoiding Future Health Problems Related to Photovoltaic Technology
Environmental, health, and safety aspects of photovoltaic technology are discussed, and the role of Brookhaven National Lab as DOE's field center for research and advice in this area is described. (WHK)
Date:
January 1, 1980
Creator:
Stang, L.
Object Type:
Article
System:
The UNT Digital Library
Atmospheric Fluidized-Bed Combustion Coal Feeding Test Program
Development of a coal feeding and distribution system is one of the major requirements for successful operation of large scale atmospheric fluidized-bed boilers. Since combustion efficiency, sulfur capture, and tube corrosion are strong functions of coal distribution in the bed, the reliability of the feed system is critical. One proposed coal feeding method involves underbed feed nozzles, and pneumatic conveying is a key element in this method. Several technical problems are inherent in such systems. One program aimed at resolving these problems involves testing a pneumatic transport system constructed to represent the branch feed lines in TVA's 20 MW AFBC pilot plant. The major objective is to determine the practical limits of such operating parameters as surface moisture, transport velocity, and coal loading. In addition, correlations are being developed to predict line pressure drop as a function of the conveying parameters. Pressure drop is important because it determines the feed system pumping costs and is a good indicator of changes in the solids flow regime. Preliminary results indicate that surface moisture is the most important factor in getting coal into the transport line. Coal with up to 6 wt % surface moisture can be fed with little difficulty, but higher …
Date:
January 1, 1980
Creator:
Daw, C. S.; Thomas, J F; Holcomb, R S & Andrews, C K
Object Type:
Article
System:
The UNT Digital Library
Attenuation of Airborne Debris From LMFBR Accidents
Experimental and theoretical studies have been performed to characterize the behavior of airborne particulates (aerosols) expected to be produced by hypothetical core disassembly accidents (HCDA's) in liquid metal fast breeder reactors (LMFBR's). These aerosol studies include work on aerosol transport in a 20-m high, 850-m/sup 3/ closed vessel at moderate concentrations; aerosol transport in a small vessel under conditions of high concentration (approx. 1000 g/m/sup 3/), high turbulence, and high temperature (approx. 2000/sup 0/C); and aerosol transport through various leak paths. These studies have shown that little, if any, airborne debris from LMFBR HCDA's would reach the atmosphere exterior to an intact reactor containment building.
Date:
January 1, 1978
Creator:
Morewitz, H. A.; Johnson, R. P.; Nelson, C. T.; Vaughan, E. U.; Guderjahn, C. A.; Hilliard, R. K. et al.
Object Type:
Article
System:
The UNT Digital Library
An Approach for Assessing Alwr Passive Safety System Reliability
Many advanced light water reactor designs incorporate passive rather than active safety features for front-line accident response. A method for evaluating the reliability of these passive systems in the context of probabilistic risk assessment has been developed at Sandia National Laboratories. This method addresses both the component (e.g. valve) failure aspect of passive system failure, and uncertainties in system success criteria arising from uncertainties in the system's underlying physical processes. These processes provide the system's driving force; examples are natural circulation and gravity-induced injection. This paper describes the method, and provides some preliminary results of application of the approach to the Westinghouse AP600 design.
Date:
January 1, 1991
Creator:
Hake, T. M.
Object Type:
Article
System:
The UNT Digital Library
Achieving Consensus in Environmental Programs
In this paper, we describe a new research effort on consensus tied to the Environmental Restoration Program (ERP) within the US Department of Energy's Office of Defense Waste and Transportation Management (DWTM). We define consensus and explain why consensus decisions are not merely desirable but necessary in furthering ERP activities. As examples of our planned applied research, we first discuss Nominal Group Technique as a representative consensus-generating tool, and we conclude by describing the consensus-related mission of the Waste Management Review Group, established at Virginia Tech to conduct independent, third-party review of DWTM/ERP plans and activities. 10 refs.
Date:
January 1, 1989
Creator:
Kurstedt, Jr., H. A.; Jones, R. M.; Walker, J. A. & Middleman, L. I.
Object Type:
Article
System:
The UNT Digital Library
Archaeological and Chemical Analysis of Tell El Yahudiyeh Ware
Typological and geographic analyses indicate that Tell el Yahudiyeh ware (found in Cyprus, Egypt, Nubia, and the Levant during the Middle Bronze period, c. 1750-1550 B.C.) were probably manufactured in two areas, the Nile Valley and the Levant. Activation analysis was carried out and correlated with the archaeological analyses. Results confirm the two "families" of the ware, one Egyptian and one Levantine. Speculations are offered on the social interaction of the period. 11 figures, 2 tables. (DLC)
Date:
January 1, 1978
Creator:
Kaplan, M. F.; Harbottle, G. & Sayre, E. V.
Object Type:
Report
System:
The UNT Digital Library
Analysis of the Impact of Safeguards Criteria
As part of the US Program of Technical Assistance to IAEA Safeguards, the Pacific Northwest Laboratory (PNL) was asked to assist in developing and demonstrating a model for assessing the impact of setting criteria for the application of IAEA safeguards. This report presents the results of PNL's work on the task. The report is in three parts. The first explains the technical approach and methodology. The second contains an example application of the methodology. The third presents the conclusions of the study. PNL used the model and computer programs developed as part of Task C.5 (Estimation of Inspection Efforts) of the Program of Technical Assistance. The example application of the methodology involves low-enriched uranium conversion and fuel fabrication facilities. The effects of variations in seven parameters are considered: false alarm probability, goal probability of detection, detection goal quantity, the plant operator's measurement capability, the inspector's variables measurement capability, the inspector's attributes measurement capability, and annual plant throughput. Among the key results and conclusions of the analysis are the following: the variables with the greatest impact on the probability of detection are the inspector's measurement capability, the goal quantity, and the throughput; the variables with the greatest impact on inspection costs …
Date:
January 1, 1981
Creator:
Mullen, M. F. & Reardon, P. T.
Object Type:
Report
System:
The UNT Digital Library
Activities of the Department of Energy in Education. Annual Status Report, FY 1978
The Department of Energy's responsibilities in implementing President Carter's National Energy Plan include identifying the appropriate role of educational activities and institutions in that work. This study describes educational activities as they existed one year after the creation of the Department of Energy. Educational activities of educational institutions are included in the study, with the deliberate exception of the very substantial research activity conducted by universities. This report is intended to assist DOE program managers in the utilization of educational process in their operations and to provide guidance and information to the public about the Department's educational activities. For additional historical information, please consult DOE, IR-0008. (RWR)
Date:
January 1, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
N = 2 Maxwell-Einstein Supergravity Theories: Their Compact and Non-Compact Gaugings and Jordan Algebras
In this talk we give a review of our work on the construction and classification of N = 2 Maxwell-Einstein Supergravity theories (MESGT), study of the underlying algebraical and geometrical structure of these theories, and their compact and non-compact gaugings. We begin by summarizing our construction of the N = 2 MESGT's in five dimensions and give a geometrical interpretation to various scalar dependent quantities in the Lagrangian, based on the constraiants implied by supersymmetry. This is followed by a complete classification of the N = 2 MESGT's whose target manifolds parametrized by the scalar fields are symmetric spaces. 39 refs.
Date:
January 1, 1985
Creator:
Guenaydin, M.; Sierra, G. & Townsend, P.K.
Object Type:
Article
System:
The UNT Digital Library