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Advanced Gas Cooled Nuclear Reactor Materials Evaluation and Development Program. Progress report, January 1, 1980-March 31, 1980
Results are presented of work performed on the Advanced Gas-Cooled Nuclear Reactor Materials Evaluation and Development Program. The objectives of this program are to evaluate candidate alloys for Very High Temperature Reactor (VHTR) Nuclear Process Heat (NPH) and Direct Cycle Helium Turbine (DCHT) applications, in terms of the effect of simulated reactor primary coolant (helium containing small amounts of various other gases), high temperatures, and long time exposures, on the mechanical properties and structural and surface stability of selected candidate alloys. A second objective is to select and recommend materials for future test facilities and more extensive qualification programs. Included are the activities associated with the status of the simulated reactor helium supply system, testing equipment and gas chemistry analysis instrumentation and equipment. The progress in the screening test program is described, including screening creep results and metallographic analysis for materials thermally exposed or tested at 750, 850, and 950/sup 0/C.
Date:
June 25, 1980
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Assessment of the potential of colloidal fuels in future energy usage. Final report. [97 references]
Pulverized coal has been an increasing important source of energy over the past century. Most large utility boilers, all modern coking plants, and many industrial boilers and blast furnaces employ pulverized coal as a major feed stream. In periods of oil shortages, such as during World Wars I and II, the concept of adding powdered coal to oil for use in combustion equipment originally designed for oil has been actively pursued but rarely used. Over this same period of time, there have been attempts to use air suspensions of coal dust in diesel engines in Germany, and in turbines in various countries. The economic advantages to be enjoyed by substitution of powdered coal in oil are not generally realized. Oil costs at $30/bbl represent a fuel value of about $5.00/10/sup 6/ Btu; coal at $25/ton is equivalent to approximately $1.00/10/sup 6/ Btu. Although capital costs for the use of coal are higher than those associated with the use of oil, coal is clearly becoming the least costly fuel. Not only are considerable cost advantages possible, but an improvement in balance of payments and an increase in reliability of fuel supplies are other potential benefits. It is therefore recommended that increased …
Date:
February 25, 1980
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Fire protection countermeasures for containment ventilation systems
The goal of this project is to find countermeasures to protect High Efficiency Particulate Air (HEPA) filters, in exit ventilation ducts, from the heat and smoke generated by fire. Initially, methods were developed to cool fire-heated air by fine water spray upstream of the filters. It was recognized that smoke aerosol exposure to HEPA filters could also cause disruption of the containment system. Through testing and analysis, several methods to partially mitigate the smoke exposure to the HEPA filters were identified. A continuous, movable, high-efficiency prefilter using modified commercial equipment was designed. The technique is capable of protecting HEPA filters over the total time duration of the test fires. The reason for success involved the modification of the prefiltration media. Commercially available filter media has particle sorption efficiency that is inversely proportional to media strength. To achieve properties of both efficiency and strength, rolling filter media were laminated with the desired properties. The approach was Edisonian, but truncation in short order to a combination of prefilters was effective. The application of this technique was qualified, since it is of use only to protect HEPA filters from fire-generated smoke aerosols. It is not believed that this technique is cost effective in …
Date:
August 25, 1980
Creator:
Alvares, N.; Beason, D.; Bergman, V.; Creighton, J.; Ford, H. & Lipska, A.
Object Type:
Report
System:
The UNT Digital Library
Capacity-expansion planning under uncertainty in the electric-utility industry
This document basically represents a comparison between theory and practice of capacity-expansion planning in the electric-utility industry. The purpose of the comparison is to provide avenues for further exploration in utility decision making. The focus of the Phase II study is upon the role of uncertainty in the decision-making process. The Phase I effort was directed at modeling the Averch-Johnson theory of the regulated utility. Part I of this report reviews the Anderson study (D. Anderson, Models for Determining Least-Cost Investments in Electricity Supply). The Anderson paper has become a standard reference for capacity-planning studies in the electric-utility industry. Part II examines uncertainty and the behavior of the firm. Part III reviews 5 models of electric-utility capacity planning under uncertainty, and Part IV is concerned with capacity-planning models in practice.
Date:
July 25, 1980
Creator:
Soyster, A.L.
Object Type:
Report
System:
The UNT Digital Library
Results of TMX operations: January-July 1980
This interim report summarizes results from the Tandem Mirror Experiment (TMX) during the period January to July 1980 and describes the physics experiments, the machine operation, and the diagnostics that were added to TMX during this period. This operating period followed the initial proof-of-principle TMX experiments and predated the ongoing final experiments preceding TMX shutdown for modification to TMX Upgrade. The results described in this report include measurements of plasma parameters and plasma behavior which confirm the initial TMX results that demonstrated that the tandem mirror configuration can be generated and sustained by neutral beam injection and that the tandem mirror configuration improves confinement of magnetic mirror systems.
Date:
September 25, 1980
Creator:
Correll, D.L. & Drake, R.P. (eds.)
Object Type:
Report
System:
The UNT Digital Library
Evaluation of cracking in feedwater piping adjacent to the steam generators in Nine Pressurized Water Reactor Plants
Cracking in ASTM A106-B and A106-C feedwater piping was detected near the inlet to the steam generators in a number of pressurized water reactor plants. We received sections with cracks from nine of the plants with the objective of identifying the cracking mechanism and assessing various factors that might contribute to this cracking. Variations were observed in piping surface irregularities, corrosion-product, pit, and crack morphology, surface elmental and crystal structure analyses, and steel microstructures and mechanical properties. However, with but two exceptions, namely, arrest bands and major surface irregularities, we were unable to relate the extent of cracking to any of these factors. Tensile and fracture toughness (J/sub Ic/ and tearing modulus) properties were measured over a range of temperatures and strain rates. No unusual properties or microstructures were observed that could be related to the cracking problem. All crack surfaces contained thick oxide deposits and showed evidence of cyclic events in the form of arrest bands. Transmission electron microscopy revealed fatigue striations on replicas of cleaned crack surfaces from one plant and possibly from three others. Calculations based on the observed striation spacings gave a value of ..delta..sigma = 150 MPa (22 ksi) for one of the major cracks. …
Date:
June 25, 1980
Creator:
Goldberg, A.; Streit, R. D. & Scott, R. G.
Object Type:
Report
System:
The UNT Digital Library
Quadric solids and computational geometry
As part of the CAD-CAM development project, this report discusses the mathematics underlying the program QUADRIC, which does computations on objects modeled as Boolean combinations of quadric half-spaces. Topics considered include projective space, quadric surfaces, polars, affine transformations, the construction of solids, shaded image, the inertia tensor, moments, volume, surface integrals, Monte Carlo integration, and stratified sampling. 1 figure.
Date:
July 25, 1980
Creator:
Emery, J.D.
Object Type:
Report
System:
The UNT Digital Library
Tritium experience at RTNS-II
Neutrons are produced at the Rotating Target Neutron Source-II (RTNS-II) by deuteron bombardment of a rotating tritium target. Tritium is released from these targets into the accelerator vacuum system. The vacuum system exhaust is first scrubbed and then vented via the facility stack. Tritium emission from the facility in normal operation with vacuum system exhaust flowing through the scrubber is extremely low, <1 mCi/day. Releases from by-passing the tritium scrubber during roughing of the vacuum system and from accelerator maintenance account for nearly all of the annual 10 Ci release from the facility. Routine target changes have been the cause of most tritium uptake by personnel. A target shipping system has been devised for transport of these targets.
Date:
April 25, 1980
Creator:
Logan, C. M.; Davis, J. C.; Gibson, T. A.; Heikkinen, D. W.; Schumacher, B. J. & Singh, M. S.
Object Type:
Article
System:
The UNT Digital Library
[Photograph 2012.201.B0051.0971]
Photograph taken for a newspaper owned by the Oklahoma Publishing Company. Caption: "Gaping Hole- Jerry Brown surveys damage to his southwest Oklahoma City home at 3732 Lunlow after a car driven by James K. Arnold JR., barreled through a T-section Friday and smashed into the Brown living room."
Date:
January 25, 1980
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0104.0470]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "In the neighborhood around northern Hills Elementary School Nadine Brawner wins the title of neighborhood mother."
Date:
March 25, 1980
Creator:
Albright, Bob
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0106.0009]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Decaying bridge on Chisholm Creek, on Western Ave, south of NW 206th Okla. City."
Date:
September 25, 1980
Creator:
Hoke, Doug
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0144.0253]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Thirteen-year-old Leesa Cornett of Newcastle and her mother, Mrs. Billie Cornett, look at a yearbook while waiting to audition for the Cinderella Girl-Prince Charming pageant which will be held later in Las Vegas , Nev."
Date:
October 25, 1980
Creator:
Miller, Joe
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0140.0539]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "UCLA's Heather Compton winds and delivers a pitch during the Bruins' 2-1 victory over Oklahoma State on Saturday."
Date:
May 25, 1980
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0150.0369]
Photograph used for a story in the Oklahoma Times newspaper.
Date:
September 25, 1980
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0134.0417]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Marcia Christofferson , left, and Susie Gray are early arrivals and ready for action at their mom and dad's 35th anniversary skating party.."
Date:
February 25, 1980
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0172.0468]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Jerry Dean Ray said he was bound and hung by his heels in this jail cell at the Edmond police station."
Date:
November 25, 1980
Creator:
Tullous, Don
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0158.0213]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Del City's new $1,146,000 garbage and trash incinerator plant will dispose of up to 100 tons of material a day without much noise or odor or smoke, reducing the waste material to only about 5 percent of its original volume in the form of ash."
Date:
August 25, 1980
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0149.0092]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "The wreckage of a crop-dusting plane lies in a cotton field near Altus after a crash Wednesday that reportedly occurred after the plane hit a radio tower."
Date:
September 25, 1980
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0170.0056]
Caption: "Patricia Duran, left, and Duane Coy got a jump on Halloween last Saturday as they donned their happy clown faces to join in the fun at the annual Jones FFA Carnival."
Date:
October 25, 1980
Creator:
Lynn, Renee
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0174.0316]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Sidewalk makes way for improvements -- An Edmond city street worker uses his tractor to pry up a section of an old sidewalk outside of the Edmond city hall."
Date:
July 25, 1980
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0156.0130]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "OU's Frank DeAngelis is riding high and hard on Iowa State's Jim Gibbons in their 134-match at Norman Friday night."
Date:
January 25, 1980
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0140.0481]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Ed Commander with a few of the oldies he sells at his record store."
Date:
November 25, 1980
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0136.0190]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Planting Eagle Roots -- Fighting a flower bed is all part of the battle for the honor of being an Eagle Scout, as these three member of Troop 91 learned Tuesday while working outside the Walnut creek nursing home, 2400 SW 55."
Date:
March 25, 1980
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0142.0163]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Deanna Conway, 15, Purcell, has a little encouraging talk with her entry in the Central District 4-H-FFA Livestock Show at Cleveland County Fair grounds in Norman."
Date:
February 25, 1980
Creator:
Tullous, Don
Object Type:
Photograph
System:
The Gateway to Oklahoma History