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Characterization of Open-Cycle Coal-Fired MHD Generators. Quarterly Technical Summary Report No. 3, January 1--March 31, 1977. [Negative Ion Formation, Electron/Slag Interaction, and Alkali/Slag Interaction]
The purpose of this contract effort is to understand how nonfuel components of coal will affect the electron and alkali seed chemistry in a high temperature coal combustion system like that envisioned for direct fired MHD generators. Three specific problems are being considered during this contract period. The first problem area is to characterize the formation of negative ions due to electron attachment processes in the combustion flow. While some stable negative ions may be formed from hydrocarbon combustion species (OH/sup -/), the bulk of the stable negative ions are expected to be formed from oxidized inorganic coal slag constituents (BO/sup -//sub 2/, PO/sup -//sub 2/, AlO/sup -//sub 2/, etc). Negative ion formation can reduce the conductivity of the MHD plasma, particularly at the low temperature end of the MHD channel, thus decreasing the efficiency of power generation. The second problem area involves the role slag condensation may play in determining the electron density through recombination, also adversely affecting conductivity in the core flow. The competitive balance between thermionic emission from slag droplets and electron/ion recombination on the droplet surfaces may be severely tipped in favor of electron loss processes, depending on the slag properties. The third problem area is …
Date:
April 15, 1977
Creator:
Kolb, C. E.; Yousefian, V.; Wormhoudt, J.; Martinez-Sanchez, M. & Kerrebrock, J. L.
Object Type:
Report
System:
The UNT Digital Library
[Photograph 2012.201.B0297.0100]
Photograph taken for a newspaper owned by the Oklahoma Publishing Company.
Date:
April 15, 1971
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0363.0499]
Photograph taken for a story in the Oklahoma Times newspaper. Caption: "Elaine Evans, the pretty 20-year-old representing Oklahoma City in the Miss Oklahoma Pageant, took top talent honors Thursday night."
Date:
April 15, 1970
Creator:
Taylor, Robert
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0411.0051]
Photograph taken for a story in the Oklahoma Times newspaper. Caption: "Last day mailer of income taxes, Bob Farney , left, explains this was the first year he had to pay so he decided to let the government wait."
Date:
April 15, 1971
Creator:
Tapscott, George
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0229.0086]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "W. M. Clines will remain as director of national account sales with headquarters in Los Angeles"
Date:
April 15, 1970
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
BASEMENT BOX 66.0424
Photograph taken during daylight of a firefighter emerging from a hole in a roof. Caption: "From the smoke and heat of a fire in a Hamilton Courts apartment unit, a fireman checks the roof for sparks."
Date:
April 15, 1974
Creator:
Carter, J. Pat
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0123.0034]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
April 15, 1977
Creator:
Hoke, Doug
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0148.0083]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Jackie Crawford putting on street clothes (hat)."
Date:
April 15, 1975
Creator:
Albright, Bob
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0156.0260]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Historian Angie Debo, right served as marshal of the Logan County Community's parade, which highlighted the final events in the three-day celebration."
Date:
April 15, 1978
Creator:
Reed, Monty
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0150.0183]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "PRACTICING for a Sunrise Easter Service Sunday at Crossroads Mall is an 800-member choir."
Date:
April 15, 1976
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0134.0562]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
April 15, 1979
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0158.0280]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Less than ten minutes after the first photograph, the building has collapsed revealing the completed phase one construction of the new Del City Elementary School."
Date:
April 15, 1977
Creator:
Ward, Ron
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0158.0279]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "After a few punches at the south wall, the east wall is all that remains."
Date:
April 15, 1977
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0150.0671]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Joe Edelen would a lot rather hit then pitch, but when he's on the mound his fast ball is as good as his form and enemy batters usually wind up toting ..."
Date:
April 15, 1973
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0137.0136]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Jane Cleveland and Glenna Hoke prepare food for tasting."
Date:
April 15, 1979
Creator:
Reed, Monty
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0321.0552]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Jerry Jones Monday was named professional at Surrey Hills Country Club to succeed Jerry Dixon who resigned three weeks ago."
Date:
April 15, 1974
Creator:
Carter, Randy
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0304B.0547]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Jean Johnson, Mid-Del PTA member, shares a laugh with Gov. David Boren today during PTA Day at the state legislature."
Date:
April 15, 1975
Creator:
Tullous, Don
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[News Clip: Iranian protest]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
April 15, 1978, 10:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
Modeling of silicon particle growth. Progress report
Efforts at the Jet Propulsion Laboratory toward the production of pure polycrystaline silicon are centered on the concept of silicon particle growth in a fluidized bed reactor (FBR) and a continuous flow pyrolyzer (CFP). The CFP possibly can provide the seed particles which will be grown to larger sizes in the FBR. In both the reactors polycrystalline silicon is obtaned from the pyrolysis of silane. A part of the JPL effort is to develop a model of silicon particle growth for the purpose of predicting particle growth rates and product particle size distributions in the FBR and the CFP. This repot describes the mathematical models of silicon particle growth in the FBR and the CFP.
Date:
April 15, 1979
Creator:
Praturi, A.K.; Hsu, G.C. & Lutwack, R.
Object Type:
Report
System:
The UNT Digital Library
Regional Issue Identification and Assessment program (RIIA). Environmental impacts and issues of the EIA MID-MID scenario: Federal Region I (New England)
The impacts described here for 1985 and 1990 are based on a national energy projection which assumes medium energy demand and fuel supply through 1990 but does not incorporate the policies of the National Energy Act (NEA). This scenario, referred to as the Projection Series C or the TRENDLONG MID-MID scenario, is one of six possible energy futures developed by the DOE Energy Information Administration for the Department's 1977 Annual Report to Congress. It was chosen as representative of the official DOE national energy projections when this project was initiated, prior to the passage of the National Energy Act. Since the RIIA program is part of an ongoing review of the regional impact of energy policies, the next phase will examine the National Energy Act (NEA) and initiatives suggested by the President's second National Energy Plan. However, since coal utilization increases under the NEA, in general, impacts identified in the TRENDLONG Series C Scenario should provide a framework for the discussion of impacts by NEA. The environmental impacts discussed in this volume are for Federal Region I (Maine, Vermont, New Hampshire, Massachusetts, Rhode Island, and Connecticut). However, there are nine companion volumes, one for each of the other Federal Regions.
Date:
April 15, 1979
Creator:
Brainard, J. & Munson, J.S.
Object Type:
Report
System:
The UNT Digital Library
Silicon preparation and purity from the reaction of sodium with silicon tetrafluoride and silicon tetrachloride: a thermochemical study
Thermochemical equilibrium computations for the preparation of silicon (Si) by the reaction between sodium (Na), either liquid or vapor, with silicon tetrafluoride (SiF/sub 4/) and silicon tetrachloride (SiCl/sub 4/) are presented. Computations indicate that SiF/sub 4/ reacts with either liquid or gaseous Na to produce temperatures sufficiently high to form molten Si. Liquid Na reacts with SiF/sub 4/ to produce substantially higher Si yields than does the free combustion reaction with Na vapor; however, the Na vapor/SiF/sub 4/ reaction, if temperature-constrained at the Si melting point, produces an expected Si yield close to 100%. A stoichiometric mixture of liquid Na and SiCl/sub 4/ vapor reacts to produce liquid Si, gaseous sodium chloride (NaCl), and a small concentration of Si subhalides. Gaseous Na, however, reacts with SiCl/sub 4/ to form entirely gaseous reaction products and a high yield of Si (liquid) but subhalide concentrations are greater than when liquid Na is used. The reactions of a number of impurity elements in Na, during the course of the Na-Si halide reaction, have been described. Of those considered, only calcium (Ca), magnesium (Mg), phosphorus (P), and strontium (Sr) are expected to co-exist to any extent in Na vapor and none is expected to …
Date:
April 15, 1979
Creator:
Rhein, R. A.
Object Type:
Report
System:
The UNT Digital Library
Purification of silicon by the silicon fluoride transport process. Thermochemical study
A computer-assisted thermochemical equilibrium analysis was conducted for the silicon transport reaction: Si(s) + SiF/sub 4/(g) = (intermediates) = Si(s) + SiF/sub 4/(g). The calculations indicated that a substantial transport rate should be possible at temperatures of 1700/sup 0/K and one atmosphere pressure. Computations were made to determine whether the elemental impurities present in metallurgical-grade silicon would transfer in this process. It was concluded that aluminum, chromium, copper, iron, manganese, molybdenum, nickel, vanadium, and zirconium would not transfer, but that boron, magnesium, phosphorus, and titanium would transfer.
Date:
April 15, 1979
Creator:
Rhein, R. A.
Object Type:
Report
System:
The UNT Digital Library
Passive solar calculation methods. Interim report
This report is the first in a series and details the results accomplished under the following tasks: (1) evaluation of existing passive solar calculation methods, (2) BLAST/DOE-1 program interface and comparison with BR-202, and (3) development of analytic relationships between the thermal balance and weighting factor techniques. The various methods available for use in thermal load analysis are presented with detailed informaton on algorithms used in the thermal balance and weighting factor techniques. (MOW)
Date:
April 15, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
[Photograph 2012.201.B0261B.0242]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "OU President J. Herbert Hollomon stands atop desk to confront anti-war demonstrators."
Date:
April 15, 1970
Creator:
Gorton, Ted
Object Type:
Photograph
System:
The Gateway to Oklahoma History