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Open Cycle Lithium Chloride Cooling System. Final Report, March 1, 1982-May 28, 1983
A lithium chloride open cycle absorption chiller has been designed, built and tested. Solution reconcentration takes place in a small counter-current packed column supplied with solar heated air. Removal of non-condensable gases that enter the chiller dissolved in the strong solution and the make-up refrigerant streams is accomplished by a liquid-jet ejector and a small vacuum pump. Cooling capacities approaching 1.4 tons and COP levels of 0.58 have been achieved at non-optimum operating conditions. Test results from preliminary system operation suggest that mass transfer processes in both the packed column reconcentrator and the absorber are controlled by concentration gradients in the lithium chloride solution. Liquid phase controlled mass transfer dictates an operating strategy different from the previously assumed gas phase controlled process to obtain maximum rates of evaporation in the packed column. Determination of optimal operating conditions leading to decreased electrical power consumption and improved cooling capacity and coefficient of performance will require further analysis and testing.
Date:
May 1, 1983
Creator:
Lenz, T. G.; Loef, G. O.G.; Iyer, R. & Wenger, J.
Object Type:
Report
System:
The UNT Digital Library
Geopressured geothermal bibliography. Volume II (geopressure thesaurus). Second Edition
This thesaurus of terminology associated with the geopressured geothermal energy field has been developed as a part of the Geopressured Geothermal Information System data base. It is a compilation of terms displaying synomymous, hierarchical, and other relationships between terms. These terms, which are called descriptors, constitute the special language of the information retrieval system - the system vocabulary. The function of this thesaurus is to provide a standardized vocabulary for the information storage and retrieval system to facilitate both the indexing and subject-searching processes. In indexing, a thesaurus is used to translate the natural language of the document to be indexed into the standardized system vocabulary and to place the document at the appropriate level of generality or specificity in relation to the other documents in the data base. In subject retrieval, the thesaurus is used to match the natural language used in search requests with the system vocabulary and to find the most appropriate term to represent a concept.
Date:
May 1, 1983
Creator:
Sepehrnoori, K.; Carter, F.; Schneider, R.; Street, S. & McGill, K.
Object Type:
Report
System:
The UNT Digital Library
Experimental evaluation of the steady state and dynamic performance characteristics of the interactive units of a coal gasification process. Quarterly report, 27 December 1982-3 April 1983
A Test Plan Report has been prepared which details all the tests proposed for the 1983 operational season. One of these tests evaluates the thermal recycle mode which would be employed in a commercial configuration. In this mode, the condensate stream en route to the resaturator is passed back to the first gas cooler. The gas to liquid heat exchanger heats the condensate prior to resaturation. The analytical system simulation model, developed under this program, has been used to assess the operation of this mode and to select baseline conditions for the proposed test. Analysis of the data and results from tests conducted during the 1982 season has continued. In specific application, particularly power generation, the need exists to accommodate unanticipated contingency conditions. The response of the gasifier to such an occurrence was tested in 1982. Validation of the component models for the gasifier and the acid gas removal system has continued. Several enhancements to the gasifier model in the devolatilization zone are being added to increase accuracy. Improvements in the representation of the CO/sub 2/ absorption rate in the acid gas removal system model are being incorporated. A simplified combined cycle system model, integrated control system, and operator interface …
Date:
May 1, 1983
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Colorado: basic data for thermal springs and wells as recorded in GEOTHERM
GEOTHERM sample file contains 225 records for Colorado. Three computer-generated indexes are found in appendices A, B, and C of this report. The indexes give one line summaries of each GEOTHERM record describing the chemistry of geothermal springs and wells in the sample file for Colorado. Each index is sorted by different variables to assist the user in locating geothermal records describing specific sites. Appendix A is sorted by the county name and the name of the source. Also given are latitude, longitude (both use decimal minutes), township, range, section, GEOTHERM record identifier, and temperature (/sup 0/C). Appendix B is sorted by county, township, range, and section. Also given are name of source, GEOTHERM record identifier, and temperature (/sup 0/C). Appendix C is first sorted into one-degree blocks by latitude, and longitude, and then by name of source. Adjacent one-degree blocks which are published as a 1:250,000 map are combined under the appropriate map name. Also given are GEOTHERM record identifier, and temperature (/sup 0/C). A bibliography is given in Appendix D.
Date:
May 1, 1983
Creator:
Bliss, J. D.
Object Type:
Report
System:
The UNT Digital Library
Geopressured geothermal bibliography. Volume I. Citation extracts. Second edition
This annoted bibliography contains 1131 citations. It represents reports, papers, and articles appearing over the past eighteen years covering topics from the scientific and technical aspects of geopressured geothermal reservoirs to the social, environmental, and legal considerations of exploiting those reservoirs for their energy resources. Six indexes include: author, conference title, descriptor, journal title, report number, and sponsor. (MHR)
Date:
May 1, 1983
Creator:
Sepehrnoori, K.; Carter, F.; Schneider, R.; Street, S. & McGill, K.
Object Type:
Report
System:
The UNT Digital Library
Detectors for high resolution dynamic pet
This report reviews the motivation for high spatial resolution in dynamic positron emission tomography of the head and the technical problems in realizing this objective. We present recent progress in using small silicon photodiodes to measure the energy deposited by 511 keV photons in small BGO crystals with an energy resolution of 9.4% full-width at half-maximum. In conjunction with a suitable phototube coupled to a group of crystals, the photodiode signal to noise ratio is sufficient for the identification of individual crystals both for conventional and time-of-flight positron tomography.
Date:
May 1, 1983
Creator:
Derenzo, S.E.; Budinger, T.F. & Huesman, R.H.
Object Type:
Article
System:
The UNT Digital Library
[Photograph 2012.201.B0092.0427]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Bill Meeks, Calumet, has plenty of time for a smoke."
Date:
May 10, 1983
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
A Review of Leakage-Flow-Induced Vibrations of Reactor Components
The primary-coolant flow paths of a reactor system are usually subject to close scrutiny in a design review to identify potential flow-induced vibration sources. However, secondary-flow paths through narrow gaps in component supports, which parallel the primary-flow path, occasionally are the excitation source for significant vibrations even though the secondary-flow rates are orders of magnitude smaller than the primary-flow rate. These so-called leakage flow problems are reviewed here to identify design features and excitation sources that should be avoided. Also, design rules of thumb are formulated that can be employed to guide a design, but quantitative prediction of component response is found to require scale-model testing.
Date:
May 1983
Creator:
Mulcahy, T. M.
Object Type:
Report
System:
The UNT Digital Library
Simulation and Optimization Study of a Solar-Seasonal-Storage District-Heating System: The Fox River Valley Case study
A central solar-heating plant with seasonal heat storage in a deep underground aquifer is designed by means of a solar-seasonal-storage-system simulation code based on the Solar Energy Research Institute (SERI) code for Solar Annual Storage Simulation (SASS). This Solar Seasonal Storage Plant is designed to supply close to 100% of the annual heating and domestic-hot-water (DHW) load of a hypothetical new community, the Fox River Valley Project, for a location in Madison, Wisconsin. Some analyses are also carried out for Boston, Massachusetts and Copenhagen, Denmark, as an indication of weather and insolation effects. Analyses are conducted for five different types of solar collectors, and for an alternate system utilizing seasonal storage in a large water tank. Predicted seasonal performance and system and storage costs are calculated. To provide some validation of the SASS results, a simulation of the solar system with seasonal storage in a large water tank is also carried out with a modified version of the Swedish Solar Seasonal Storage Code MINSUN.
Date:
May 1983
Creator:
Michaels, Allan I.; Sillman, Sanford; Baylin, Frank & Bankston, Charles A.
Object Type:
Report
System:
The UNT Digital Library
Algorithms for Automated Diagnosis of Faults in Physical Plant
This report presents a diagnostic automation that can be used to investigate classes of systems without feedback loops. This report shows the input needed for the automation, the algorithm used, and the PROLOG program for the simulation.
Date:
May 1983
Creator:
Gabriel, John R.
Object Type:
Report
System:
The UNT Digital Library
Study of Chromium-Free and Chromium-Reduced Steels
The goal of this study was to develop an iron-based alloy, similar to Type 316 stainless steel in mechanical and corrosion properties but with a reduced chromium content or, ideally, no chromium. A total of twenty-six 225-g ingots and ten 2.5 to 12 kg ingots of various compositions in the Fe-Si-Mn-Ni-C system were prepared. All ingots contained from 5 to 11 w/o silicon and drew their corrosion resistance primarily from this component. The composition ranges of the remaining major alloying elements were (in w/o) 0-24 Mn, 0-35 Ni, and 0.08 to 0.95 C. Most of the alloys were reduced to sheet, demonstrating the hot fabricability of these high-silicon alloys. The mechanical and corrosion properties of these alloys are attractive. Tensile tests showed yield strengths of 303 to 379 Mpa (44 to 55 ksi), ultimate tensile strengths of 731 to 882 MPa (106 to 128 ksi), and elongations of 34 to 77%. Air oxidation rates were lower than those of 300-series stainless steels at 1000 C. Salt water corrosion rates for these alloys fall between those of stainless steels and plain carbon steels and are 5 to 10 times lower than the rates for plain carbon steels.
Date:
May 1983
Creator:
Wiencek, T. C. & Thresh, H. R.
Object Type:
Report
System:
The UNT Digital Library
Division of Biological and Medical Research Annual Technical Report 1982
Computer graphic representation of the antigen-binding sites of two Bence-Jones proteins (antibody light chain diners), Loc (left) and Mcg (right). The spheres represent individual amino acids. Each binding site is composed of two variable domains and each domain consists of framework segments and the hyper-variable segments which confer the specificity to the antibody molecule.
Date:
May 1983
Creator:
Argonne National Laboratory. Division of Biological and Medical Research.
Object Type:
Report
System:
The UNT Digital Library
[Photograph 2012.201.B0119.0740]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Jody Carmichael, left, Pat Buyner and Chris Houk unload donations for Ballet Oklahoma's Tailgate Sale."
Date:
May 5, 1983
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0146.0161]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Jo Dawn Cowan - Balko - 1st."
Date:
May 7, 1983
Creator:
Wilson, George R.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0139.0399]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Buffalo Bill Bittinger (Dabney Coleman) becomes a used car salesman after his television show is canceled on "Buffalo Bill" at 8:30 CDT tonight on NBC."
Date:
May 27, 1983
Creator:
NBC News
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0147.0529]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Susan Crain and her daughter Elizabeth board the Elizabeth Crain Bricktown Trolley which recently was dedicated to Elizabeth."
Date:
May 5, 1983
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0171.0136]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Wisconsin Gov. Anthony S. Earl's recent comments favoring longer school days and longer school years did not go over very well in his own home."
Date:
May 26, 1983
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0155.0255]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "So says friend Bob Davisson of Edmond, who sells "Advanced Information Systems" for the phone company."
Date:
May 2, 1983
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0170.0615]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Alice Collins, left, and Joe Howard , 4th graders at Linwood Elementary School .."
Date:
May 17, 1983
Creator:
Miller, Joe
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0166.0272]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "South Oklahoma City Chamber of Commerce president Don Douglas, left, and Jim Daniel, president of the Friendly National Bank, check membership tallies."
Date:
May 25, 1983
Creator:
Wilson, George R.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0142.0043]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Stan Constant . . . Possesses a drive to excel"
Date:
May 12, 1983
Creator:
Lynn, Renee
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0156.0637]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Cody Groves, 4, of Edmond puts both hands into the petting of a hungry goat"
Date:
May 1, 1983
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0153.0262]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Emmett and Juanita Darby, in top left picture, enterain her mother, Mrs. V. J. Hendrix, 94."
Date:
May 1, 1983
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0156.0638]
Photograph used for a story in the Daily Oklahoman newspaper. "Trick roper Chuck Miller shows Becky Wishon, 12, how to lasso an elusive steer."
Date:
May 1, 1983
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History