Advanced development of a pressurized ash agglomerating fluidized-bed coal gasification system. Fourth quarter progress report, July 1-September 30, 1982 (open access)

Advanced development of a pressurized ash agglomerating fluidized-bed coal gasification system. Fourth quarter progress report, July 1-September 30, 1982

The overall objective of the Westinghouse coal gasification program is to demonstrate the viability of the Westinghouse pressurized, fluidized bed, gasification system for the production of medium-Btu fuel gas for syngas, electrical power generation, chemical feedstocks, or industrial fuels and to obtain performance and scaleup data for the process and hardware. Technical progress summaries and reports are presented for the following tasks: (1) process development unit (PDU) test operations and results (gasifier test TP-033-1 and maintenance and modifications); (2) process analysis (environmental characterization results, coal gas combustion results, and fines elutriation and consumption results); (3) cold flow scaleup (modifications and maintenance, operations, and data analysis); (4) process and component engineering and design (hot fines recycle modifications, and hot recycled fines); (5) laboratory support studies (gas-solids flow modeling and coal/ash behavior). 23 figures, 23 tables.
Date: February 17, 1983
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Separation and Characterization of Coal Derived Components. Quarterly Report, July 1-September 30, 1983 (open access)

Separation and Characterization of Coal Derived Components. Quarterly Report, July 1-September 30, 1983

The field-ionization mass spectral hydrocarbon data from F-45 (Wyodak coal-derived SRC) and F-51 (Kentucky 9/14 coal-derived SRC) were recalculated so the various hydrocarbon fractions could be compared directly on a weight percent basis. A computer program was developed which allows the field-ionization mass spectral hydrocarbon data to be compared in a three dimensional fashion. This approach provides for a rapid general comparson of all the field-ionization hydrocarbon data. The solubility of preasphaltenes was tested in several solvents. The preasphaltenes-2 were found to be largely soluble in pyridine:chloroform 9:1(v/v) or 7:3(v/v) and pyridine:chloroform:tetrahydrofuran 7:1:2(v/v/v). Experiments were carried out in which Chromasorb T was tested as a replacement for Fluoropak in the Fluoropak-basic alumina procedure. The results indicated Chromasorb T would be an adequate substitute for Fluoropak, but additional experiments will be run to confirm this. The chromatographic characteristics of numerous hydroxyl aromatics, nitrogen heterocycles, and aromatic amines were obtained on several normal-phase and reversed-phase high-performance liquid chromatographic systems. 30 references, 30 figures, 10 tables.
Date: October 17, 1983
Creator: Hurtubise, R. J. & Silver, H. F.
Object Type: Report
System: The UNT Digital Library
PSOLV: a code for calculating the potentials and densities in MFTF-B (open access)

PSOLV: a code for calculating the potentials and densities in MFTF-B

Code PSOLV solves for potential and densities at the cardinal points of MFTF-B. The code is equipped to handle both the throttle-coil and the axicell geometries. For the throttle-coil case, the potential at point MXO is input, while the potentials and densities at points MAI, b, and A are calculated. For the axicell case, the code must additionally solve for the potentials and densities at points X and MXO. PSOLV is intended primarily for use as a subroutine in TREQ, a code being developed by Rensink that calculates the densities and potentials at the cardinal points of MFTF-B as a function of time. TREQ is to be used for modeling start-up behavior.
Date: August 17, 1983
Creator: Colborn, J. A.
Object Type: Report
System: The UNT Digital Library
Status of the Lawrence Berkeley Laboratory and the Lawrence Livermore National Laboratory (LLNL) free electron laser (FEL). Revision 1 (open access)

Status of the Lawrence Berkeley Laboratory and the Lawrence Livermore National Laboratory (LLNL) free electron laser (FEL). Revision 1

A high-gain FEL experiment using the 10 kA, 4.5 MeV Experimental Test Accelerator (ETA) is described.
Date: November 17, 1983
Creator: Orzechowski, T. J.; Moebus, M. C.; Penko, F. A.; Prosnitz, D.; Rogers, D.; Chavis, C. S. et al.
Object Type: Article
System: The UNT Digital Library
Positrons from supernova and the origin of the galactic-center positron-annihilation radiation (open access)

Positrons from supernova and the origin of the galactic-center positron-annihilation radiation

The emission of positrons from supernova ejecta is dicussed in terms of the galactic-center annihilation radiation. The positrons from the radioactive sequences /sup 56/Ni..-->../sup 56/Co..-->../sup 56/Fe are the most numerous source from supernova. Only type I supernova will allow a significant fraction to escape the expanding ejecta. For a neutron star model of a type I SN a fraction 4 x 10/sup -3/ of the escaped positron is enough to create the observed several year fluctuation of the annihilation radiation. The likelihood of this model is discussed in terms of other astrophysical evidence as well as the type I SN light curve.
Date: March 17, 1983
Creator: Colgate, S. A.
Object Type: Article
System: The UNT Digital Library
Mechanism of the optogalvanic effect in a hollow-cathode discharge (open access)

Mechanism of the optogalvanic effect in a hollow-cathode discharge

There are two significantly different mechanisms proposed for the origin of the optogalvanic effect in a hollow-cathode discharge: (1) laser excitation of atoms to higher electronic states leads to an increased cross section for electron impact ionization, with the result that the excited atom becomes ionized and the conductivity of the discharge increases; and (2) laser excitation of atoms to higher electronic states perturbs the equilibrium established between the electron temperature and the atomic excitation temperature. Superelastic collisions between the electrons and the laser-excited atoms restore the equilibrium, with the excess energy ending up in an increased electron temperature and therefore an increased conductivity of the discharge. Both mechanisms undoubtedly proceed simultaneously and what needs to be determined is their relative importance at different discharge conditions and different excitation conditions. This is important because laser isotope enrichment schemes have been proposed using selective excitation in a hollow-cathode discharge. In order for these schemes to work, (1) must be the predominant mechanism. We have measured the optogalvanic signal, concentration of uranium atoms, impedance of the discharge, and electron temperature as a function of the discharge current in a neon-filled uranium hollow-cathode discharge. The hollow cathode operating characteristics are used as input …
Date: June 17, 1983
Creator: Keller, Richard A.; Warner, Bruce E.; Zalewski, Edward F.; Dyer, P.; Engleman, Rolf, Jr. & Palmer, Byron A.
Object Type: Article
System: The UNT Digital Library
Design and evaluation of small water turbines. Final report (open access)

Design and evaluation of small water turbines. Final report

An evaluation was made of the design and hydromechanical performance characteristics for three basic turbine types: axial flow (Jonval), inward radial flow (Francis) and crossflow (Banki). A single commercially available turbine representative of each type and within the appropriate power range (<5hp) was obtained for evaluation. Specific turbine selections were based on price, availability and suitability for operation at heads of 50 feet or less and flows under 2 cubic feet per second. In general, the peak operating efficiencies of each unit tended to be lower than anticipated, falling in the range of 40 to 50%. With sufficient flow, however, significant useful power outputs up to 3 hp were obtained. While the radial flow turbine (a centrifugal pump operated as a turbine) had the lowest initial unit cost, the axial and cross flow designs exhibited more stable operation, particularly under transient loadings. The crossflow turbine had the added advantage that it was essentially self-cleaning. With further developmental effort and appropriate design modifications it should be possible to bring each of these microhydro designs to their full performance potential.
Date: February 17, 1983
Creator: Marquis, J.A.
Object Type: Report
System: The UNT Digital Library
Projectile-power-compressed magnetic-field pulse generator (open access)

Projectile-power-compressed magnetic-field pulse generator

Design considerations and experimental results are presented of a compressed magnetic field pulsed energy source. A 100-mm-diameter, gun-fired projectile of approx. 2MJ kinetic energy was the input energy source. An initial magnetic field was trapped and compressed by the projectile. With a shorted load, a magajoule in a nanohenry was the design goal, i.e., 50 percent energy transformation from kinetic to magnetic. Five percent conversion was the highest recorded before gauge failure.
Date: March 17, 1983
Creator: Barlett, R.H.; Takemori, H.T. & Chase, J.B.
Object Type: Article
System: The UNT Digital Library
Sodium/water pool-deposit bed model of the CONACS code. [LMFBR] (open access)

Sodium/water pool-deposit bed model of the CONACS code. [LMFBR]

A new Pool-Bed model of the CONACS (Containment Analysis Code System) code represents a major advance over the pool models of other containment analysis code (NABE code of France, CEDAN code of Japan and CACECO and CONTAIN codes of the United States). This new model advances pool-bed modeling because of the number of significant materials and processes which are included with appropriate rigor. This CONACS pool-bed model maintains material balances for eight chemical species (C, H/sub 2/O, Na, NaH, Na/sub 2/O, Na/sub 2/O/sub 2/, Na/sub 2/CO/sub 3/ and NaOH) that collect in the stationary liquid pool on the floor and in the desposit bed on the elevated shelf of the standard CONACS analysis cell.
Date: December 17, 1983
Creator: Peak, R.D.
Object Type: Article
System: The UNT Digital Library
Leak testing and repair of fusion devices (open access)

Leak testing and repair of fusion devices

The leak testing, reporting and vacuum leak repair techniques of the MFTF yin-yang number one magnet system, the world's largest superconducting magnet system, are discussed. Based on this experience, techniques will be developed for testing and repairing leaks on the 42 MFTF-B magnets. The leak-hunting techniques for the yin-yang magnet systems were applied to two helium circuits (the coil bundle and guard vacuum; both require helium flow for magnet cooldown), their associated piping, liquid nitrogen radiation shields, and piping. Additionally, during MFTF-B operation there will be warm water plasma shields and piping that require leak checking.
Date: June 17, 1983
Creator: Kozman, T. A.
Object Type: Article
System: The UNT Digital Library
Experiences with fast breeder reactor education in laboratory and short course settings (open access)

Experiences with fast breeder reactor education in laboratory and short course settings

The breeder reactor industry throughout the world has grown impressively over the last two decades. Despite the uncertainties in some national programs, breeder reactor technology is well established on a global scale. Given the magnitude of this technological undertaking, there has been surprisingly little emphasis on general breeder reactor education - either at the university or laboratory level. Many universities assume the topic too specialized for including appropriate courses in their curriculum - thus leaving students entering the breeder reactor industry to learn almost exclusively from on-the-job experience. The evaluation of four course presentations utilizing visual aids is presented.
Date: January 17, 1983
Creator: Waltar, A.E.
Object Type: Article
System: The UNT Digital Library
Experiments to study the feasibility of making an x-ray laser at the Novette laser facility (open access)

Experiments to study the feasibility of making an x-ray laser at the Novette laser facility

We will discuss a set of experiments which are designed to study approaches to and search for the existence of amplified spontaneous emission at photon energies of 42.3, 53.6, 119.0, and 153.0 eV. The schemes utilize pumping from the Novette laser operated with cylindrical optics at 5 TW/beam and 100 psec.
Date: May 17, 1983
Creator: Matthews, D.L.; Hagelstein, P. & Kauffman, R.
Object Type: Article
System: The UNT Digital Library
BNL neutral-beam development group. Progress report FY 1982 (open access)

BNL neutral-beam development group. Progress report FY 1982

Efforts were concentrated on the development of H/sup -//D/sup -/ sources capable of delivering about 1A of beam current, operating steady state at an energy of several tens of keV and having properties that would allow a scaling up to 10A and their use in a high energy neutral beam line. In the seventies we have developed negative ion sources of the plasms surface type with extracted current densities of several hundred mA/cm/sup 2/. Particularly successful was the development of the magnetron source, from which pulsed beam currents in excess of one ampere have been obtained and accelerated up to 120 kV. These magnetrons have become standard sources in high energy accelerator laboratories around the world and they are candidates for application in polarized H/sup -/ ion sources as well. Work on hollow cathode deuterium sources and neutraizers is reported.
Date: January 17, 1983
Creator: Prelec, K. & Sluyters, T.
Object Type: Report
System: The UNT Digital Library
Texas Register, Volume 8, Number 34, Pages 1617-1642, May 17, 1983 (open access)

Texas Register, Volume 8, Number 34, Pages 1617-1642, May 17, 1983

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: May 17, 1983
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 8, Number 43, Pages 2053-2104, June 17, 1983 (open access)

Texas Register, Volume 8, Number 43, Pages 2053-2104, June 17, 1983

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: June 17, 1983
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Attorney General Opinion: JM-32 (open access)

Texas Attorney General Opinion: JM-32

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification: May a legislator accept a teaching position at a public institution of higher education if the compensation paid therefor is derived form private funds donated to the university
Date: May 17, 1983
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-63 (open access)

Texas Attorney General Opinion: JM-63

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification; Whether the county clerk or county judge controls preparation of agende for commissioners court
Date: August 17, 1983
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-64 (open access)

Texas Attorney General Opinion: JM-64

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification; Whether rider to general appropriations act violates article III, section 35 of the Texas Constitution
Date: August 17, 1983
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-65 (open access)

Texas Attorney General Opinion: JM-65

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification; Whether a county may contribute funds to a privately owned hospital
Date: August 17, 1983
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-66 (open access)

Texas Attorney General Opinion: JM-66

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification; Whether the State Treasurer may use a wire transfer system to transfer and collect funds within the treasury
Date: August 17, 1983
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
PPA Cavity Power Losses (open access)

PPA Cavity Power Losses

None
Date: March 17, 1983
Creator: ZuBao, Q.
Object Type: Report
System: The UNT Digital Library
Further effects of ions in the arcs (open access)

Further effects of ions in the arcs

One of the effects of ions in the SLC arcs was considered by A.W. Chao in CN-121. He estimated that the extra betatron phase shift of particles in the tail of a bunch caused by ions produced by the head was probably tolerable, provided the vacuum was 10/sup -4/ torr or better. This note suggests that a more thorough study of ion effects in the arcs is warranted.
Date: August 17, 1983
Creator: Rees, J.R.
Object Type: Report
System: The UNT Digital Library
Intrabeam Scattering Computer Calculations And Other Performance Issues (open access)

Intrabeam Scattering Computer Calculations And Other Performance Issues

None
Date: November 17, 1983
Creator: Ruggiero, Alessandro G.
Object Type: Report
System: The UNT Digital Library
Short Bunches Performance With Intrabeam Scattering (open access)

Short Bunches Performance With Intrabeam Scattering

None
Date: November 17, 1983
Creator: Ruggiero, Alessandro G.
Object Type: Report
System: The UNT Digital Library