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Testing program for determining the mechanical properties of concrete to temperatures of 621/sup 0/C

Description: Concrete temperatures in a Liquid Metal Fast Breeder Reactor (LMFBR) in excess of normal code limits can result from postulated large sodium spills in equipment cells. Elevated temperature concrete property data which may have application for providing a basis for the design and evaluation of such postulated accident conditions is limited. Data thus needed to be developed commensurate with LMFBR plant applications for critical physical and mechanical concrete properties under prototypic thermal… more
Date: January 1, 1980
Creator: Oland, C.B.; Naus, D.J. & Robinson, G.C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Design and operation of an inert gas facility for thermoelectric generator storage

Description: While the flight hardware is protected by design from the harsh environments of space, its in-air storage often requires special protection from contaminants such as dust, moisture and other gases. One of these components, the radioisotope thermoelectric generator (RTG) which powers the missions, was deemed particularly vulnerable to pre-launch aging because the generators remain operational at core temperatures in excess of 1000 degrees centigrade throughout the storage period. Any oxygen perm… more
Date: January 1, 1990
Creator: Goebel, C. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Investigation of breached depleted UF sub 6 cylinders

Description: In June 1990, during a three-site inspection of cylinders being used for long-term storage of solid depleted UF{sub 6}, two 14-ton cylinders at Portsmouth, Ohio, were discovered with holes in the barrel section of the cylinders. An investigation team was immediately formed to determine the cause of the failures and their impact on future storage procedures and to recommend corrective actions. Subsequent investigation showed that the failures most probably resulted from mechanical damage that oc… more
Date: January 1, 1991
Creator: DeVan, J. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Quarterly Progress Report on Fission Product Behavior in LWRs for the Period October-December 1977

Description: Analysis of release data obtained during High Burnup Fuel Test 10 (HBU-10) has been completed. In this test the fuel rod segment was ruptured by internal pressurization at 900/sup 0/C, at which time the temperature was rapidly increased to 1200/sup 0/C and maintained at this temperature for 10 min. Approximately 0.061% of the total cesium inventory in the rod segment was released; this was accompanied by the release of about 1.69% of the total /sup 85/Kr inventory. Moreover, about 0.022% of the… more
Date: February 1, 1978
Creator: Malinauskas, A. P.; Lorenz, R. A.; Collins, J. L.; Osborne, M. F.; Whatley, S. K. & Towns, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Investigation of cooling coil corrosion in storage tanks for radioactive waste

Description: The high frequency of cooling coil leaks observed in high-heat waste storage tanks soon after sludge removal operations is attributed to pitting, according to laboratory corrosion studies. Experiments show that the most likely series of events leading to coil leakage is (1) excessive dilution of basic nitrite in the supernate, (2) initiation of attack in crevices due to oxygen depletion cells, and (3) acceleration of the attack by sulfate dissolved from the sludge. When sludge was slurried with… more
Date: January 1, 1978
Creator: Ondrejcin, R.S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Gamma densitometer for measuring Pu density in fuel tubes

Description: A fuel-gamma-densitometer (FGD) has been developed to examine nondestructively the uniformity of plutonium in aluminum-clad fuel tubes at the Savannah River Plant (SRP). The monitoring technique is ..gamma..-ray spectroscopy with a lead-collimated Ge(Li) detector. Plutonium density is correlated with the measured intensity of the 208 keV ..gamma..-ray from /sup 237/U (7d) of the /sup 241/Pu (15y) decay chain. The FGD measures the plutonium density within 0.125- or 0.25-inch-diameter areas of th… more
Date: January 1, 1982
Creator: Winn, Willard G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Establishment and maintenance of a coal sample bank and data base

Description: Data from both instruments indicate that atmospheric oxygen is leaking into the primary and secondary containers. The methods and containers tested cannot maintain an inert atmosphere over the long term. The actual percentage of oxygen in the containers is thought to be influenced by several factors: (1) Flushing with argon by any method only displaces part (50 to 80%) of the atmospheric air present in the container after it is filled with coal. Because the atmosphere may not be homogeneous, an… more
Date: February 1, 1989
Creator: Davis, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Study of plutonium oxide leak rates from shipping containers. Quarterly progress report, October 1, 1977--December 31, 1977

Description: The study was initiated in Oct. 1976. Several tasks are to be undertaken. In combination, they have the end objective of defining the leak rates of plutonium oxide from characterized leaks in shipping containers. Research progress is reported on each of the four tasks. (TFD)
Date: January 1, 1978
Creator: Schwendiman, L. C.; Pobereskin, M.; Mishima, J.; Sutter, S. L.; Madia, W. J.; Schmidt, E. W. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Flight-systems safety program. Progress report, February 1982

Description: This technical monthly report covers studies related to the use of /sup 238/PuO/sub 2/ in radioisotope power systems carried out for the Office of Coordination and Special Projects of the US Department of Energy by los Alamos National Laboratory. Most of the studies discussed here are ongoing. Results and conclusions described may change as the work continues. Published reference of the results cited in this report should not be made without the explicit permission of the person in charge of th… more
Date: February 1, 1982
Creator: Bronisz, S. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Tank 241-A-105 leak assessment

Description: Tank 241-A-105 is one of 149 single shell tanks constructed at Hanford to contain and store highly radioactive wastes originating from the processing of spent nuclear reactor fuel. Radiation detection and temperature monitoring devices installed beneath the tank indicate that several episodes of leakage of waste from the tank have occurred. The aim of this study was to evaluate the previous estimates and reanalyze the data to provide a more accurate estimate of leakage from the tank. The princi… more
Date: June 1, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An Experimental Approach to Determining Subsurface Leakage From a Surface Impoundment Using a Radioisotope Tracer

Description: Bromine-82, a 35.3-h half-life radionuclide, was used as a tracer to determine the paths and rates of leakage from an unlined, 1,000,000-gal (3,785,000 L), surface impoundment at the Oak Ridge National Laboratory. Since the impoundment is underlain and surrounded by storm sewer and sanitary sewer lines (most of them predating the impoundment), known and suspected leak sites in storm drain catch basins and sanitary sewer manholes were sampled periodically and analyzed for /sup 82/Br. A series of… more
Date: January 1, 1986
Creator: Ashwood, T. L.; Story, J. D.; Larsen, I. L. & Schultz, F. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

5MW Raft River facility experience

Description: The Raft River geothermal plant is a small binary cycle conversion system which uses isobutane as the working fluid. This plant uses a staged boiler concept to achieve better performance than could be obtained by a single boiler. The plant was designed to operate with a geothermal water inlet temperature of 143/sup 0/C (290/sup 0/F) and produce a nominal generator output of 5MW. The plant is supported by a supply and injection system consisting of three supply wells (about 1524m or 5000 ft deep… more
Date: January 1, 1980
Creator: Whitbeck, J.F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Materials aspects of SRP waste storage: corrosion and mechanical failure

Description: Studies were made on the causes of observed leaks in mild steel tanks used to store liquid waste from nuclear fuel reprocessing at the Savannah River Plant. Leaks were observed in the walls of some primary vessels and in some cooling coils. The studies revealed that: wall leaks resulted from nitrate stress corrosion cracking caused by alkaline nitrate solution; and coil leaks resulted from pitting corrosion caused by diluted waste solutions during sludge removal. Stresses that caused wall crack… more
Date: November 1, 1977
Creator: Donovan, J.A. (comp.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Builder's Guide to Super Good Cents Contruction and Sales.

Description: This Builder's guide describes the Super Good Cents {reg sign} program and the benefits available to participating builders. It explains the program standards and the typical building techniques used by Super Good Cents builders. Finally, the guide tells how you can participate and answers many of the questions asked by builders about the Super Good Cents program.
Date: March 1, 1992
Creator: Program, OSU Extension Energy & Administration., United States. Bonneville Power
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Plant monitoring techniques and second generation designs

Description: Chemical and instrumental monitoring techniques suitable for geothermal use are described in a manner to relate them to plant operational problems and downtime avoidance. The use of these techniques permits the detection of scaling, the onset of scaling, corrosion loss, current corrosion rates and incipient heat exchanger failure. Conceptual advances are noted which simplify the research techniques to approaches that should be usable even in some low-capital well-head type power plants. 10 refs… more
Date: March 1, 1985
Creator: Kindle, C.H.; Shannon, D.W.; Robertus, R.J.; Pierce, D.D. & Sullivan, R.G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Worker health and safety in solar thermal power systems. IV. Routine failure hazards

Description: Routine failure events in selected solar thermal power system designs are examined, and their rates of occurrence estimated. The results are used to compare and rank the systems considered. Modules of 1 to 100 MWe are developed based on reference or other near-term designs. Technologies used include parabolic trough, parabolic dish, and central tower focusing; central and distributed power generation; and proximate and independent siting of power modules. Component counts and failure rates esti… more
Date: September 1, 1979
Creator: Ullman, A.Z.; Sokolow, B.B.; Hill, J.; Meunier, G. & Busick, H. III
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Collector sealants and breathing. Final Report, 25 September 1978-31 December 1979

Description: The objectives of this program were: (1) to investigate the pertinent properties of a variety of possible sealants for solar collectors and identify the most promising candidates, and (2) to study the effect of breathing in flat-plate, thermal solar collector units. The study involved two types of sealants, Class PS which includes preformed seals or gaskets and Class SC which includes sealing compounds or caulks. It was the intent of the study to obtain data regarding initial properties of cand… more
Date: February 20, 1980
Creator: Mendelsohn, M A; Luck, R M; Yeoman, F A & Navish, Jr, F W
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Remote leak detection for the TFTR

Description: The planned design for the TFTR (TOKAMAK Fusion Test Reactor) remote leak detection system consists of a central console which controls the application of tracer gas to possible leak areas. Seals are tested by admitting tracer gas to machined cavities on the atmospheric side of the seal. The tracer gas is brought to the seal cavity by /sup 1///sub 8/-inch diameter tubes which connect to local tracer gas/vacuum manifolds located outside the protective radiation shielding. Vacuum shell walls and … more
Date: January 1, 1977
Creator: Walthers, C.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Hypothetical accident conditions, free drop and thermal tests: Specification 6M

Description: The 30 gallon Specification 6M shipping container with rolled-top food pack cans as inner containers is evaluated under conditions required by 10 CFR 71.42. One kilogram of depleted uranium as UO/sub 2/ was packaged in each of the inner containers. After completion of a free drop test and a simulated thermal test, the maximum observed leakage of UO/sub 2/ for the following week was 3.2 ..mu..g. This leakage is well below the allowable leakage per week for most plutonium isotopic mixtures. Using… more
Date: May 1, 1980
Creator: Blankenship, R.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Wall conditioning and leak localization in the advanced toroidal facility

Description: The Advanced Toroidal Facility (ATF) vacuum vessel and its internal components have been conditioned for plasma operation by baking, discharge cleaning with hydrogen and helium, and gettering with chromium and titanium. The plasma-facing surface of ATF consists mainly of stainless steel with some graphite; the outgassing area is dominated by the graphite because of its open porosity. Since this situation is somewhat different from that in other fusion plasma experiments, in which a single mater… more
Date: January 1, 1989
Creator: Langley, R. A.; Glowienka, J. C.; Mioduszewski, P. K.; Murakami, M.; Rayburn, T. F.; Simpkins, J. E. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Demonstration of rapid and sensitive module leak certification for space station freedom

Description: A leak detection and quantification demonstration using perflurocarbon tracer (PFT) technology was successfully performed at the NASA Marshall Space Flight Center on January 25, 1991. The real-time Dual Trap Analyzer (DTA) at one-half hour after the start of the first run gave an estimated leak rate of 0.7 mL/min. This has since been refined to be 1.15 {plus minus} 0.09 mL/min. The leak rates in the next three runs were determined to be 9.8 {plus minus} 0.7, {minus}0.4 {plus minus} 0.3, and 76 … more
Date: March 1, 1991
Creator: Dietz, R. N. & Goodrich, R. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Functional Design Criteria Additional High-Level Waste Handling and Storage Facilities

Description: Four one-million-gallon underground tanks will be constructed for safe and reliable containment and storage of high-level radioactive wastes. Transfer facilities and encased, insulated, and heat traced piping will provide transport connections to the existing evaporator-crystallizer and storage tank systems. Flushing facilities and associated utilities will be provided for tank farm operation. The tank, pumping, and ventilation equipment and controls will be provided with instrumentation and al… more
Date: March 1, 1976
Creator: Tanaka, K. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Establishment and maintenance of a coal sample bank and data base

Description: Headspace oxygen contents of several designated drums containing {minus}l inch and {minus}{1/4} inch coal were measured. These measurements were later discontinued by agreement with the Project Manager, as the leakage of plastic drums and buckets has been well documented. During the current reporting period a total of 65 data printouts were distributed. In addition, 10 special data requests were fulfilled by either search/sort and printout or creation of a data disk, resulting in distribution o… more
Date: February 6, 1991
Creator: Davis, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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