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Self-actuating reactor-shutdown system. [LMFBR] (open access)

Self-actuating reactor-shutdown system. [LMFBR]

A control system for the automatic or self-actuated shutdown or scram of a nuclear reactor is described. The system is capable of initiating scram insertion by a signal from the plant protection system or by independent action directly sensing reactor conditions of low-flow or over-power. Self-actuation due to a loss of reactor coolant flow results from a decrease of pressure differential between the upper and lower ends of an absorber element. When the force due to this differential falls below the weight of the element, the element will fall by gravitational force to scram the reactor. Self-actuation due to high neutron flux is accomplished via a valve controlled by an electromagnet and a thermionic diode. In a reactor over-power, the diode will be heated to a change of state causing the electromagnet to be shorted thereby actuating the valve which provides the changed flow and pressure conditions required for scramming the absorber element.
Date: June 4, 1981
Creator: Barrus, D.M.; Brummond, W.A. & Peterson, L.F.
Object Type: Patent
System: The UNT Digital Library
Downhole Steam Injector. [Patent Application] (open access)

Downhole Steam Injector. [Patent Application]

An improved downhole steam injector has an angled water orifice to swirl the water through the device for improved heat transfer before it is converted to steam. The injector also has a sloped diameter reduction in the steam chamber to throw water that collects along the side of the chamber during slant drilling into the flame for conversion to steam. In addition, the output of the flame chamber is beveled to reduce hot spots and increase efficiency, and the fuel-oxidant inputs are arranged to minimize coking.
Date: June 3, 1981
Creator: Donaldson, A. B. & Hoke, E.
Object Type: Patent
System: The UNT Digital Library
Structural assessment approach (SAA) input package. Volume 3: User's Manual (physical security) (open access)

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
Equity Oil Company BX in situ oil shale project, Piceance Basin, Colorado. Environmental quarter report, March 1-May 31, 1981 (open access)

Equity Oil Company BX in situ oil shale project, Piceance Basin, Colorado. Environmental quarter report, March 1-May 31, 1981

This report has been organized into three sections for ease of review. Section A - Air Resources covers data collected by the 100-foot tower between September and December 1980. Section B - Water Resources covers data collected since the last Quarterly Report. Section C - Aquatic Biology covers data collected since January 1981. Laboratory analysis results of all water samples show no significant changes from previous sample have occurred. The alluvial wells did exhibit slightly higher concentrations of phenols. Presently no baseline record exists for these wells to establish the normal levels of phenols in the alluvial ground water. Laboratory analysis of all sampling locations are presented in Appendix B. Aquatic biology covers data collected during the initial two aquatic biology field sampling trips of 1981. Benthic invertebrates, periphyton algae, and a fishery survey was conducted. Stream observations indicate that the stream habitat has remained unchanged since the August 1980 field visit. (ATT)
Date: June 12, 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Free-electron laser using rf-coupled accelerating and decelerating structures (open access)

Free-electron laser using rf-coupled accelerating and decelerating structures

A free electron laser and free electron laser amplifier using beam transport devices for guiding an electron beam to a wiggler of a free electron laser and returning the electron beam to decelerating cavities disposed adjacent to the accelerating cavities of the free electron laser. Rf energy is extracted from the electron beam after it emerges from the wiggler by means of the decelerating cavities which are closely coupled to the accelerating cavities, or by means of a second bore within a single set of cavities. Rf energy extracted from the decelerated electron beam is used to supplement energy provided by an external source, such as a klystron, to thereby enhance overall efficiency of the system.
Date: June 19, 1981
Creator: Brau, C.A.; Swenson, D.A. & Boyd, T.J. Jr.
Object Type: Patent
System: The UNT Digital Library
Decontamination processes for waste glass canisters (open access)

Decontamination processes for waste glass canisters

The process which will be used to decontaminate waste glass canisters at the Savannah River Plant consists of: decontamination (slurry blasting); rinse (high-pressure water); and spot decontamination (high-pressure water plus slurry). No additional waste will be produced by this process because glass frit used in decontamination will be mixed with the radioactive waste and fed into the glass melter. Decontamination of waste glass canisters with chemical and abrasive blasting techniques was investigated. The ability of a chemical technique with HNO/sub 3/-HF and H/sub 2/C/sub 2/O/sub 4/ to remove baked-on contamination was demonstrated. A correlation between oxide removal and decontamination was observed. Oxide removal and, thus, decontamination by abrasive blasting techniques with glass frit as the abrasive was proposed and demonstrated.
Date: June 1, 1981
Creator: Rankin, W.N.
Object Type: Report
System: The UNT Digital Library
Summary of proceedings: Oklahoma and Texas wind energy forum, April 2-3, 1981 (open access)

Summary of proceedings: Oklahoma and Texas wind energy forum, April 2-3, 1981

The Wind Energy Forum for Oklahoma and Texas was held at the Amarillo Quality Inn in Amarillo, Texas on April 2-3, 1981. Its purpose was to bring together the diverse groups involved in wind energy development in the Oklahoma and Texas region to explore the future commercial potential and current barriers to achieving this potential. Major topics of discussion included utility interconnection of wind machines and the buy-back rate for excess power, wind system reliability and maintenance concerns, machine performance standards, and state governmental incentives. A short summary of each presentation is included.
Date: June 1, 1981
Creator: Nelson, S. C. & Ball, D. E.
Object Type: Article
System: The UNT Digital Library
New Orleans full-scale trommel evaluation: interim test report (open access)

New Orleans full-scale trommel evaluation: interim test report

This report presents the data from five tests of a full-scale trommel processing unsegregated municipal solid waste at throughtputs ranging from 58% to 175% of design capacity, or 32 to 98 Mg/h (36 to 109 tph). The tests were conducted between December 1980 and March 1981 at the Recovery 1 solid waste processing facility in New Orleans, La. Included in the report are a description of the equipment, discussion of the test procedures and primary summaries of data on the trommel mass balance and separation efficiency, and on the analysis of infeed and product samples for size, composition, density, and moisture. Heat content and ash values of the trommel oversize and recovery results on surrogate aluminum cans and flakes also are reported.
Date: June 1, 1981
Creator: Campbell, J.
Object Type: Report
System: The UNT Digital Library
FFTF power-range testing (open access)

FFTF power-range testing

FFTF's ascent to full power was a distinct success. Plant performance and the short time frame required to complete testing clearly illustrated the efforts of all involved in preparing for the initial power ascent. The data obtained will be used as a baseline for further power range testing as the FFTF startup program is completed.
Date: June 1, 1981
Creator: Rapacz, A. J.; Redekopp, R. D. & Waldo, J. B.
Object Type: Article
System: The UNT Digital Library
Probability of pipe fracture in the primary coolant loop of a PWR plant. Volume 5. Probabilistic fracture mechanics analysis. Load Combination Program Project I final report (open access)

Probability of pipe fracture in the primary coolant loop of a PWR plant. Volume 5. Probabilistic fracture mechanics analysis. Load Combination Program Project I final report

The primary purpose of the Load Combination Program covered in this report is to estimate the probability of a seismic induced LOCA in the primary piping of a commercial pressurized water reactor (PWR). Best estimates, rather than upper bound results are desired. This was accomplished by use of a fracture mechanics model that employs a random distribution of initial cracks in the piping welds. Estimates of the probability of cracks of various sizes initially existing in the welds are combined with fracture mechanics calculations of how these cracks would grow during service. This then leads to direct estimates of the probability of failure as a function of time and location within the piping system. The influence of varying the stress history to which the piping is subjected is easily determined. Seismic events enter into the analysis through the stresses they impose on the pipes. Hence, the influence of various seismic events on the piping failure probability can be determined, thereby providing the desired information.
Date: June 1, 1981
Creator: Harris, D. O.; Lim, E. Y. & Dedhia, D. D.
Object Type: Report
System: The UNT Digital Library
Environmental data for sites in the National Solar Data Network (open access)

Environmental data for sites in the National Solar Data Network

Environmental information collected at the sites of the National Solar Data Network is presented in the form of tables for each solar site. The sites are grouped into 12 zones, each of which consists of several adjacent states. The insolation table presents the total, diffuse, direct, maximum, and extraterrestrial radiation for the solar site. It also shows the ratio of total to extraterrestrial radiation as a percent. The temperature table gives the average, daytime, nighttime, maximum, minimum and inlet-water temperatures for the solar site. All of the passive and some of the active solar sites are equipped with wind sensors which provide information for two wind tables furnishing wind speed and direction. For some sites, a humidity table provides relative humidity values for day and night. It also gives values for the maximum and minimum humidity for each day. A technical discussion of the instruments and measurements used to obtain these data tables is included. (LEW)
Date: June 1, 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library

[Photograph 2012.201.B0052.0726]

Photograph taken for a story in the Oklahoma City Times newspaper. Caption: "Rescuers work to remove Larry Priebe, 50, from his truck after an accident on S I-240 this morning."
Date: June 17, 1981
Creator: Buehner, Jeff
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0051.0966]

Photograph taken for a story in the Oklahoma Times newspaper. Caption: "Amcare ambulance technicians huddle over Joe M. Sprinkle in front of the twisted wreckage of his car along I-35."
Date: June 19, 1981
Creator: Buehner, Jeff
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0051.0949]

Photograph taken for a newspaper owned by the Oklahoma Publishing Company. Caption: "Jim Hatfield, Oklahoma City policeman, inspects a car that overturned Wednesday afternoon near NW 15 and Classen." Staff photo by George R. Wilson, original photo 06/24/81, Published on T-06-25-81."
Date: June 24, 1981
Creator: Wilson, George R.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0108.0245]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Terry Britton describes new cable TV college courses."
Date: June 27, 1981
Creator: Wilson, George R.
Object Type: Photograph
System: The Gateway to Oklahoma History
Analytical Techniques for Ambient Sulfate Aerosols (open access)

Analytical Techniques for Ambient Sulfate Aerosols

This report describes the work done to further develop the infrared spectroscopic analytical method for the analysis of atmospheric aerosol particles, as well as some exploratory work on a new procedure for determining proton acidity in aerosol samples. Earlier work had led to the successful use of infrared (ir) spectrophotometry for the analysis of nitrate, ammonium, and neutral and acidic sulfates in aerosol samples collected by an impactor on a Mylar-film substrate. In this work, a filter-extraction method was developed to prepare filter-collected aerosol samples for ir analysis. A study was made comparing the ir analytical results on filter-collected samples with impactor-collected samples. Also, the infrared analytical technique was compared in field studies with light-scattering techniques for aerosol analysis. A highly sensitive instrument for aerosol analysis using attenuated total internal reflection (ATR) infrared spectroscopy was designed, built, and tested. This instrument provides a measurement sensitivity much greater (by a factor of 6 for SO4Ā²ā») than that obtainable using the KBr-pellet method. This instrument collects size- and time-resolved samples and is potentially capable of providing automated, near real-time aerosol analysis. Exploratory work on a novel approach to the determination of proton acidity in filter- or impactor-collected aerosol samples is also described. ā€¦
Date: June 1981
Creator: Johnson, S. A.; Graczyk, D. G.; Kumar, R. & Cunningham, P. T.
Object Type: Report
System: The UNT Digital Library
Estimation of Sparse Jacobian Matrices and Graph Coloring Problems (open access)

Estimation of Sparse Jacobian Matrices and Graph Coloring Problems

Given a mapping with a sparse Jacobian matrix, the problem of minimizing the number of function evaluations needed to estimate the Jacobian matrix by differences is investigated. This problem can be attacked as a graph coloring problem and this approach leads to very efficient algorithms. The behavior of these algorithms is studied and, in particular, it is proved that two of the algorithms are optimal for band graphs. Numerical evidence is presented which indicates that these two algorithms are nearly optimal on practical problems.
Date: June 1981
Creator: Coleman, Thomas F. & MoreĢ, Jorge J.
Object Type: Report
System: The UNT Digital Library

[Photograph 2012.201.B0156.0439]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Photographer Daisy Decazes chats with Edwin Kolb, a Clinton-area farmer, at the opening of her solo show at the Oklahoma Arts Center's Arts Annex."
Date: June 29, 1981
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0170.0085]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Danny Durden, in Muskogee for the United States Parachute Association's National Championships, psychs himself up for a practice jump as the plane climbs to 6,000 feet."
Date: June 26, 1981
Creator: Buehner, Jeff
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0146.0363]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Mrs. Frank Bolen deposits her name in a box Friday in a bid for a chance to buy a $100,000 painting by Tom Lovell at the National Cowboy Hall of Fame and Western Heritage Center."
Date: June 12, 1981
Creator: McDaniel, David
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0153.0238]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Danny Dantzler, Leo Halleron and Reba Jones take a work break beside a tree at the office complex at 63 and North Broadway Extension."
Date: June 11, 1981
Creator: Miller, Joe
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0153.0670]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "South Oklahoma City Chamber of commerce executive vice president John Davey and Assistant Fire Chief David T. Darby chat at the ceremony honoring building fund contributors."
Date: June 11, 1981
Creator: McDaniel, David
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0156.0442]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "French photographer Daisy Decazes pauses while hanging a work from her "Photographs of Western Oklahoma."
Date: June 23, 1981
Creator: Lynn, Renee
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0158.0361]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Workers for a contractor begin installation of intake and out-take pipes which eventually will be covered with a 1-million-gallon ground-level water storage tank."
Date: June 9, 1981
Creator: Argo, Jim
Object Type: Photograph
System: The Gateway to Oklahoma History