States

Multiheteromacrocycles that complex metal ions. Sixth progress report, 1 May 1979-30 April 1980. [Hemispherands; spherands] (open access)

Multiheteromacrocycles that complex metal ions. Sixth progress report, 1 May 1979-30 April 1980. [Hemispherands; spherands]

Objective is to design synthesize, and evaluate cyclic and polycyclic host organic compounds for their abilities to complex and lipophilize guest metal ions, their complexes, and their clusters. Host organic compounds consist of strategically placed solvating, coordinating, and ion-pairing sites tied together by covalent bonds through hydrocarbon units around cavities shaped to be occupied by guest metal ions or by metal ions plus their ligands. Specificity in complexation is sought by matching the following properties of host and guest: cavity and metal ion sizes; geometric arrangements of binding sites; number of binding sites; character of binding sites; and valences. During this period, hemispherands based on an aryloxy or cyclic urea unit, spherands based on aryloxyl units only, and their complexes with alkali metals and alkaline earths were investigated. An attempt to separate /sup 6/Li and /sup 7/Li by gel permeation chromatography of lithiospherium chloride failed. (DLC)
Date: January 15, 1980
Creator: Cram, D. J.
Object Type: Report
System: The UNT Digital Library
Static and dynamic analyses on the MFTF-B vacuum vessel. Revision 1 (open access)

Static and dynamic analyses on the MFTF-B vacuum vessel. Revision 1

The Mirror Fusion Test Facility is a major magnetic fusion energy project at the Lawrence Livermore National Laboratory. An important component of this facility is the vacuum vessel, which forms the vacuum chamber. The vessel is supported on twenty-two pairs of legs that rest on reinforced concrete piers. In performing static and dynamic analyses on the vacuum vessel, we separately investigated the load distribution under gravity loads, pressure loads, electromagnetic loads, and thermal loads. We also performed sophisticated dynamic analyses to predict the structural behavior under a postulated earthquake. The modeling assumptions and analytic procedures are highlighted in this paper.
Date: January 15, 1984
Creator: Ng, D.S.
Object Type: Article
System: The UNT Digital Library
(Performance evaluation of fabric bag filters on a bench-scale coal gasifier) (open access)

(Performance evaluation of fabric bag filters on a bench-scale coal gasifier)

The objective of the proposed work is to demonstrate the operational and economic feasibility of using high-temperature ceramic filters for particulate control in a variety of coal gasification power generating systems.
Date: January 15, 1986
Creator: unknown
Object Type: Report
System: The UNT Digital Library
(Performance evaluation of fabric bag filters on a bench-scale coal gasifier) (open access)

(Performance evaluation of fabric bag filters on a bench-scale coal gasifier)

The objective of the proposed work is to demonstrate the operational and economic feasibility of using high-temperature ceramic filters for particulate control in a variety of coal gasification power generating systems.
Date: January 15, 1986
Creator: unknown
Object Type: Report
System: The UNT Digital Library
BNL neutral beam development group. Progress report, FY 1979 (open access)

BNL neutral beam development group. Progress report, FY 1979

The objective of the BNL Neutral Beam Program is to develop a 250 keV neutral beam system suitable for heating experiments in toroidal or mirror plasma devices. The system will be based on acceleration and neutralization of negative hydrogen ions produced in and directly extracted from a source. The objective of source studies is to develop a unit delivering 10 A of negative ion currents in pulses of 1 s duration or longer, operating with extracted current densities of at least 0.5 A/cm/sup 2/ and having acceptable power and gas efficiencies and good beam optics. The 250 keV accelerator development work covers different structures, including those separated from the source by a bending magnet or a beam transfer system. During FY 1979 substantial progress was achieved toward the objectives of the program; in the same period the BNL program was reviewed by a panel, resulting in suggestions for a better orientation toward prospective users' requirements and in establishment of contacts with Princeton Plasma Physics Laboratory (TFTR Project) and Lawrence Berkeley and Livermore Laboratories (MFTF Project). A cooperative effort with Westinghouse was initiated in the second half of FY 1979 in order to utilize industrial facilities and expertise.
Date: January 15, 1980
Creator: Prelec, K. & Sluyters, T.
Object Type: Report
System: The UNT Digital Library
Price allocation guidelines January 1980: Low-cost solar array project (open access)

Price allocation guidelines January 1980: Low-cost solar array project

The price allocation guidelines (PAG) are an integrated set of specific cost targets for several task areas within the Low-cost Solar Array (LSA) Project. PAG is a working tool of LSA Project management designed to provide consistent and meaningful guidelines for costs of polycrystalline silicon material, sheet, cells, encapsulants, and module manufacturing. It is expected that advanced photovoltaic concepts derived from industry and the research community can be developed so that it will be possible by the end of 1982 to demonstrate production processes, all process steps, and prototype equipment required to manufacture flat-plate photovoltaic modules. This demonstration would incorporate production rates and product quality consistent with a specific market price determined by the program. This stage of development has been referred to as Technical Readiness. A goal of $0.70 per peak watt (1980 dollars) has been established for the cost of electricity generated by photovoltaic modules. The processes for producing modules demonstrated to be technically ready must be amenable to scale-up so that this price goal can eventually be achieved in the marketplace. The guidelines described in this document allocate portions of that goal to each module component. Sheet materials derived from the following five technologies are considered: Czochralski, …
Date: January 15, 1980
Creator: Aster, R. W.
Object Type: Report
System: The UNT Digital Library
Three-dimensional linear analysis of fluid-structure interaction effects in the Mark I BWR pressure suppression torus (open access)

Three-dimensional linear analysis of fluid-structure interaction effects in the Mark I BWR pressure suppression torus

Most analytical and experimental approaches to the evaluation of fluid-structure interaction (FSI) effects in the General Electric Mark I BWR pressure suppression system treat the torus shell as rigid when the shell in real systems is flexible. This report describes linear three-dimensional finite-element analyses of one torus bay that investigated the qualitative effect of torus wall flexibility on hydrodynamic loads induced by a nominal safety relief valve (SRV) discharge. The results of these analyses support the general conclusion drawn from earlier two-dimensional analyses. The report also discusses finite-element analyses of a 3-D representation of the earlier 2-D plane-strain model of the torus shell.
Date: January 15, 1980
Creator: Holman, G.S.; McCauley, E.W. & Lu, S.C.
Object Type: Article
System: The UNT Digital Library
Development program to support industrial coal gasification. Quarterly report 1 (open access)

Development program to support industrial coal gasification. Quarterly report 1

The Development Program to Support Industrial Coal Gasification is on schedule. The efforts have centered on collecting background information and data, planning, and getting the experimental program underway. The three principal objectives in Task I-A were accomplished. The technical literature was reviewed, the coals and binders to be employed were selected, and tests and testing equipment to be used in evaluating agglomerates were developed. The entire Erie Mining facility design was reviewed and a large portion of the fluidized-bed coal gasification plant design was completed. Much of the work in Task I will be experimental. Wafer-briquette and roll-briquette screening tests will be performed. In Task II, work on the fluidized-bed gasification plant design will be completed and work on a plant design involving entrained-flow gasifiers will be initiated.
Date: January 15, 1982
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Effects of torus wall flexibility on forces in the Mark I BWR pressure suppression system under SRV T-quencher loading (open access)

Effects of torus wall flexibility on forces in the Mark I BWR pressure suppression system under SRV T-quencher loading

This report describes a series of extended analyses requested by the US Nuclear Regulatory Commission to provide qualified understanding of possible fluid/structure interaction (FSI) effects for SRV teequencher test results. Three input pulses with total impulses varying by up to a factor of five are applied to two-dimensional finite-element models of the Mark I torus with shell diameter-to-thickness ratios of 0, 300, and 600. The results of these analyses support earlier conclusions that increased wall flexibility enhances attenuation of hydrodynamic loads and furthermore indicate that the magnitude of the attenuation is only weakly affected by the total impulse of the bubble pressure time-history.
Date: January 15, 1980
Creator: Holman, G.S. & Lu, S.C.
Object Type: Article
System: The UNT Digital Library
Wisconsin collector-efficiency study, phase two (open access)

Wisconsin collector-efficiency study, phase two

The collector efficiency study developed a solar collector rating methodology specific to Wisconsin conditions. Existing rating programs were researched and a collector methodology was developed. A computer program was written to calculate the collector ratings and 25 collector models were rated. The accuracy of the proposed rating methodology was evaluated for 16 collectors placed in 11 domestic hot water systems. One liquid space heating analysis with storage and one air space heating analysis without storage were completed. A solar assisted heat pump in which the solar collectors function as evaporators was also analyzed.
Date: January 15, 1982
Creator: Abright, B.L.
Object Type: Report
System: The UNT Digital Library
Parcperdue geopressure-geothermal project. Study a geopressured reservoir by drilling and producing a well in a limited geopressured water sand. Final technical report, September 28, 1979-December 31, 1983 (open access)

Parcperdue geopressure-geothermal project. Study a geopressured reservoir by drilling and producing a well in a limited geopressured water sand. Final technical report, September 28, 1979-December 31, 1983

The behavior of geopressured reservoirs was investigated by drilling and producing a well in small, well defined, geopressured reservoir; and performing detailed pressure transient analysis together with geological, geophysical, chemical, and physical studies. The Dow-DOE L. R. Sweezy No. 1 well was drilled to a depth of 13,600 feet in Parcperdue field, just south of Lafayette, Louisiana, and began production in April, 1982. The production zone was a poorly consolidated sandstone which constantly produced sand into the well stream, causing damage to equipment and causing other problems. The amount of sand production was kept manageable by limiting the flow rate to below 10,000 barrels per day. Reservoir properties of size, thickness, depth, temperature, pressure, salinity, porosity, and permeability were close to predicted values. The reservoir brine was undersaturated with respect to gas, containing approximately 20 standard cubic feet of gas per barrel of brine. Shale dewatering either did not occur or was insignificant as a drive mechanism. Production terminated when the gravel-pack completion failed and the production well totally sanded in, February, 1983. Total production up to the sanding incident was 1.94 million barrels brine and 31.5 million standard cubic feet gas.
Date: January 15, 1984
Creator: Hamilton, J.R. & Stanley, J.G. (eds.)
Object Type: Report
System: The UNT Digital Library
Semiannual report for the period April 1-September 30, 1979 of work on: (1) Superconducting power transmission development; (2) Cable insulation development. Power Transmission Project Technical Note No. 99 (open access)

Semiannual report for the period April 1-September 30, 1979 of work on: (1) Superconducting power transmission development; (2) Cable insulation development. Power Transmission Project Technical Note No. 99

The objective of the program is to develop an underground superconducting power transmission system which is economical and technically attractive to the utility industry. The system would be capable of carrying very large blocks of electric power, thus enabling it to supplant overhead lines in urban and suburban areas and regions of natural beauty. The program consisted initially of work in the laboratory to develop suitable materials, cryostats, and cable concepts. The materials work covers the development and testing of suitable superconductors and dielectric insulation. The laboratory work has now been extended to an outside test facility which represents an intermediate step between the laboratory scale and a full-scale system. The facility will allow cables several hundred feet long to be tested under realistic conditions. In addition, the refrigerator has been designed for optimum service for utility applications.
Date: January 15, 1980
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Investigation of high velocity separator for particle removal in coal gasification plants. Phase II report (open access)

Investigation of high velocity separator for particle removal in coal gasification plants. Phase II report

This report summarizes the results of Phase II of the High Velocity Particle Separator Program performed under Contract EF-77-C-01-2709. This high velocity wedge separator has the potential to reduce equipment size and cost of high temperature and pressurized particulate removal equipment for coal derived gases. Phase II has been directed toward testing and detailed conceptual design of an element suitable for a commercial scale high temperature, high pressure particle separator (HTPS). Concurrently, Phase IA has been conducted, which utilized the ambient analog method (AAM) for aerodynamic and collection performance investigation of each HTPS configuration prior and during hot testing. This report summarizes the results of Phase IA and II. The AAM effort established correlation of theoretical analysis and experiment for HTPS pressure drop, purge flow ratio and collection efficiency potential. Task I defined the initial test conditions to be the contract design point of 1800/sup 0/F and 350 psia. The 1800/sup 0/F, 350 psia testing represents the main high temperature testing with coal-derived particulates in the 2 to 10 micron range. Phase IA and Phase II have demonstrated efficient particle collection with acceptable pressure drop. In view of these encouraging results, it is reasonable to apply the developed technology toward …
Date: January 15, 1980
Creator: Linhardt, H.D.
Object Type: Report
System: The UNT Digital Library
Ramping of solid iron analysis magnets in experimental areas: BM109 preliminary results (open access)

Ramping of solid iron analysis magnets in experimental areas: BM109 preliminary results

The long main ring TeV pulse period of 60 sec with a 20 sec flattop makes it attractive to ramp solid iron magnets, such as BM109's, etc., in synchronisms with the main ring pulse. Annual energy cost savings for a BM109 could be up to a maximum of $6.6 per hour or %58,000 per year. Are there 10 or more magnets we could ramp. What is the lag between the magnet excitation current and the magnet field. It is probably small because these magnets have large air gaps and therefore relatively short (short of one second) time constants. Some preliminary measurements showing the lag between the excitation current and the magnet field for a BM109 are included. Ramping BM109's seems practical if they are programmed up to 5 seconds ahead of the main ring pulse. Maybe ramping BM109's should be tried at a few locations to gain some experience. 4 figs.
Date: January 15, 1988
Creator: Visser, A.T.
Object Type: Report
System: The UNT Digital Library
BNL Neutral-Beam Development Group. Progress report FY 1981 (open access)

BNL Neutral-Beam Development Group. Progress report FY 1981

The Brookhaven High Energy Neutral Beam Development Group is developing injector systems, particularly for the next generation of fusion mirror and tokamak experiments. These injectors are based on the acceleration and neutralization of negative deuterium ions, to utilize their high neutralization efficiency which is nearly independent of energy above 50 keV/nucleon.
Date: January 15, 1982
Creator: Prelec, K. & Sluyters, T.
Object Type: Report
System: The UNT Digital Library
Oxygen electrodes for energy conversion and storage. Annual report, 1 October 1977-30 September 1978 (open access)

Oxygen electrodes for energy conversion and storage. Annual report, 1 October 1977-30 September 1978

Research on the development of high performance, long life O/sub 2/ cathodes for both alkaline and acid electrolytes for a spectrum of applications including industrial electrolysis, fuel cells, and metal-air batteries is described. Oxygen electrocatalysts studied include platinum, silver, underpotential deposited layers and alloy metal layers on noble metal substrates, intercalated graphite, transition metal macrocyclic complexes, and transition metal oxides. Research on gas fed electrodes is also described. Results are presented and discussed in detail. An appendix on the electrodeposition of platinum crystallites on graphite substrates is included. (WHK)
Date: January 15, 1980
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Evaluation of ADAM/1 model for advanced coal-extraction concepts (open access)

Evaluation of ADAM/1 model for advanced coal-extraction concepts

The Advanced Coal Extraction Project is sponsored by the Department of Energy at the Jet Propulsion Laboratory to define and develop advanced underground coal extraction systems which: (1) are suitable for significant remaining resources after the year 2000, and (2) promise a significant improvement in production cost and miner safety, with no degradation in miner health, environmental quality and resource recovery. System requirements in the five performance areas have been defined by Goldsmith and Lavin (1980). Several existing computer programs for estimating life-cycle cost of mining systems have been evaluated. A commercially available program ADAM/1 was found to be satisfactory in relation to the needs of the Advanced Coal Extraction Project. Two test cases were run to confirm the ability of the program to handle non-conventional mining equipment and procedures. The results were satisfactory. The model, therefore, is recommended to the project team for evaluation of their conceptual designs. Since the model is commercially available, data preparation instructions are not reproduced in this document; instead the reader is referred to the original documents for this information.
Date: January 15, 1982
Creator: Deshpande, G. K. & Gangal, M. D.
Object Type: Report
System: The UNT Digital Library
Relative radiation sensitivity of insulators, stabilizers, and superconductors (open access)

Relative radiation sensitivity of insulators, stabilizers, and superconductors

The objective of this work was to compare the radiation sensitivity of the various parts of superconducting magnet systems. Using the radiation spectra calculated by Engholm for the Engineering Test Facility (ETF) toroidal field magnet inboard leg and available data on radiation effects, commonly used magnet components were ranked in order of radiation sensitivity. It was found that epoxy-based insulators and copper and aluminum stabilizers were the most sensitive parts of the magnets, more sensitive than the superconductors. Use of polyimide-based insulators would make the insulators less vulnerable than the stabilizers and superconductors. An experiment is planned to study the effects of various degrees of cold work on the radiation-induced magnetoresistance of copper, since this will be an important factor for fusion magnet stabilizers.
Date: January 15, 1982
Creator: Van Konynenburg, R.A. & Guinan, M.W.
Object Type: Report
System: The UNT Digital Library
Air-quality-model update (open access)

Air-quality-model update

The Livermore Regional Air Quality Model (LIRAQ) has been updated and improved. This report describes the changes that have been made in chemistry, species treatment, and boundary conditions. The results of smog chamber simulations that were used to verify the chemistry as well as simulations of the entire air quality model for two prototype days in the Bay Area are reported. The results for the prototype day simulations are preliminary due to the need for improvement in meteorology fields, but they show the dependence and sensitivity of high hour ozone to changes in selected boundary and initial conditions.
Date: January 15, 1982
Creator: Penner, J.E. & Walton, J.J.
Object Type: Report
System: The UNT Digital Library
Handbook of solar energy data for south-facing surfaces in the United States. Volume III. Average hourly and total daily insolation data for 235 localities (North Carolina - Wyoming) (open access)

Handbook of solar energy data for south-facing surfaces in the United States. Volume III. Average hourly and total daily insolation data for 235 localities (North Carolina - Wyoming)

Average hourly and daily total insolation estimates are given for 235 US sites at a variety of array tilt angles. (MHR)
Date: January 15, 1980
Creator: Smith, J.H.
Object Type: Report
System: The UNT Digital Library
Glovebox enclosed dc plasma source for the determination of metals in plutonium (open access)

Glovebox enclosed dc plasma source for the determination of metals in plutonium

The direct current plasma source of a Beckman Spectraspan IIIB emission spectrometer was enclosed in a glovebox at Lawrence Livermore National Laboratory in December 1982. Since that time, the system has been used for the routine determination of alloy and impurity metals in plutonium. This paper presents the systematic steps involved in developing the glovebox and gives information regarding performance of the plasma in the glovebox and the effectiveness of containment of plutonium. 8 refs., 9 figs., 3 tabs.
Date: January 15, 1986
Creator: Morris, W.F.
Object Type: Article
System: The UNT Digital Library
Fabrication of Separator Demonstration Facility process vessel (open access)

Fabrication of Separator Demonstration Facility process vessel

The process vessel system is the central element in the Separator Development Facility (SDF). It houses the two major process components, i.e., the laser-beam folding optics and the separators pods. This major subsystem is the critical-path procurement for the SDF project. Details of the vaious parts of the process vessel are given.
Date: January 15, 1985
Creator: Oberst, E.F.
Object Type: Report
System: The UNT Digital Library
Benzene distribution in product streams from in-tank processing (open access)

Benzene distribution in product streams from in-tank processing

Benzene is the major product of radiolytic decomposition of tetraphenylborate salts during in-tank salt decontamination. Its production rate has been measured at the Savannah River Laboratory (SR) and at the University of Florida under various conditions of importance to the in-tank process. Recent work has been concerned with the extent of decomposition for long storage periods, and the composition of the product streams from the process. The major results from this work are: the stored potassium tetraphenylborate precipitate will decompose at a rate of 7.3 {plus minus} 1.1% per year; the major products of the decomposition are benzene, phenol, biphenyl, and phenylboric acid; decomposition is directly proportional to the total dose and is unaffected by dose rate; the decomposition produces acidic compounds which will cause a decrease in the pH of the storage tank. 13 refs., 6 figs., 6 tabs.
Date: January 15, 1987
Creator: Walker, D. D.
Object Type: Report
System: The UNT Digital Library
TACB Bulletin, Number 1, January 15, 1988 (open access)

TACB Bulletin, Number 1, January 15, 1988

Newsletter of the Texas Air Control Board including information about the Board as well as news, events, and other relevant information related to air quality in Texas.
Date: January 15, 1988
Creator: Texas Air Control Board
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History