Development and implementation of sensitivity coefficient equations for heat conduction problems (open access)

Development and implementation of sensitivity coefficient equations for heat conduction problems

Three different methods are discussed for computing the sensitivity of the temperature field to changes in material properties and initial-boundary condition parameters for heat conduction problems. The most general method is to derive sensitivity equations by differentiating the energy equation with respect to the parameter of interest and numerically solving the resulting sensitivity equations. An example problem in which there are twelve parameters of interest is presented and the resulting sensitivity equations are derived. Numerical results are presented for thermal conductivity and volumetric heat capacity sensitivity coefficients for heat conduction in a 2-D orthotropic body. The numerical results are compared with the analytical solution to demonstrate that the numerical method is second order accurate as the mesh is refined spatially.
Date: December 15, 1997
Creator: Blackwell, B. F.; Cochran, R. J. & Dowding, K. J.
Object Type: Article
System: The UNT Digital Library
Engineering Development of Coal-Fired High-Performance Power Systems (open access)

Engineering Development of Coal-Fired High-Performance Power Systems

The concept uses a pyrolyzation process to convert coal into fuel gas and char. The char is fired in a High Temperature Advanced Furnace (HITAF). It is a pulverized fuel- fired boiler/ air heater where steam and gas turbine air are indirectly heated. The fuel gas generated in the pyrolyzer is then used to heat the gas turbine air further before it enters the gas turbine. The project is currently in Phase 2 which includes engineering analysis, laboratory testing and pilot plant testing. Research and development is being done on the HIPPS systems that are not commercial or being developed on other projects. Pilot plant testing of the pyrolyzer subsystem and the char combustion subsystem are being done separately, and then a pilot plant with a more integrated HIPPS arrangement will be tested. The High Performance Power System is a coal- fired, combined cycle power generating system that will have an efficiency of greater than 47 percent (HHV) with NOx and SOx less than 0.025 Kg/ GJ (0.06 lb/ MMBtu). This performance is achieved by combining a coal pyrolyzation process with a High Temperature Advanced Furnace (HITAF). The pyrolyzation process consists of a pressurized fluidized bed reactor which is operated …
Date: December 15, 1997
Creator: Shenker, J.
Object Type: Report
System: The UNT Digital Library
Final report for reciprocating rod pump seal assembly (R.R.P.S.A.) (open access)

Final report for reciprocating rod pump seal assembly (R.R.P.S.A.)

This technology provides a simple yet clever idea for preventing oil and saltwater polluting spills by sucker rod pumping oil wells, as well as prolonging the life of the stuffing box seals and pressure lubricating the polished rod. This objective is accomplished by introducing a non-polluting, food grade, high viscosity lubricant into the void space between two sets of seals in a typical stuffing box. This safe-fluid acts as a sacrificial fluid that will be the fluid that is exposed to the atmosphere when the primary seal in the stuffing box leaks for any reason. In addition, the pressure on this sacrificial safe-fluid is maintained at the same pressure as the pressure on the produced fluid in the flow line at the pumping tee, thereby equalizing the pressure across the secondary seal in the stuffing box that separates the safe-fluid from the produced fluid. The unique feature, of equalizing the pressure across the secondary seal, is accomplished by using a pressure transmitter which is monitoring the pressure in the flow line (which is the fluid under the secondary seal) and transmitting that pressure to the safe-fluid (which is the fluid above the secondary seal) thereby equalizing the pressure across this …
Date: December 15, 1997
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Fundamental studies of fusion plasmas. Final report, May 1, 1993--December 14, 1997 (open access)

Fundamental studies of fusion plasmas. Final report, May 1, 1993--December 14, 1997

In the course of this grant, Lodestar has collaborated with the TFTR ICRF team to carry out an extensive investigation of rf-edge physics relevant to the understanding and operation of the TFTR fast wave (FW) and ion Bernstein wave (IBW) antennas. Their FW work covered four main areas: rf sheath geometry on TFTR, ICRF convective cells and edge profile modifications, impurity production, and plasma glow and Fermi acceleration. Their IBW work, carried out over the last two years, was in support of the IBW transport barrier and poloidal flow generation experiments. A theoretical survey of rf-edge physics expected to be critical for these antennas was carried out. While the physics that was known to be important for FW systems was considered (especially sheath power dissipation, edge density modifications, and impurities), additional physics enters for IBW waves because of the shorter wavelength, slower group velocity, larger electric fields and the different polarization. In particular, ponderomotive forces, while normally negligible in the FW context, can be substantial for the IBW, but the jitter excursion distance of an electron is too large for validity of the usual theory. A new model for the resulting electron heating and density expulsion was developed. A new …
Date: December 15, 1997
Creator: Myra, James R.
Object Type: Report
System: The UNT Digital Library
Generation of 1.54 {micro}m Radiation With Application to an Eye-Safe Laser Lidar (open access)

Generation of 1.54 {micro}m Radiation With Application to an Eye-Safe Laser Lidar

Energies in excess of 250 mJ at 1.54 {micro}m have been generated by Raman scattering of a Nd:YAG laser in methane and tested on an eyesafe laser lidar system.
Date: December 15, 1997
Creator: Kurnit, N.A.; Harrison, R.F.; Karl, R.R., Jr.; Brucker, J.P.; Busse, J.; Grace, W.K. et al.
Object Type: Article
System: The UNT Digital Library
Immigration: The New Affidavit of Support - Questions, Answers, and Issues (open access)

Immigration: The New Affidavit of Support - Questions, Answers, and Issues

Report on the new immigration form issued by the Immigration and Naturalization Service, mostly consisting of a question and answer format.
Date: December 15, 1997
Creator: Vialet, Joyce
Object Type: Report
System: The UNT Digital Library
Immigration: The New Affidavit of Support—Questions, Answers, and Issues (open access)

Immigration: The New Affidavit of Support—Questions, Answers, and Issues

This report summarizes the new affidavit of support form, that is required by 1996 immigration legislation. It reviews the new requirements and changes made to new affidavit about immigration sponsorship.
Date: December 15, 1997
Creator: Vialet, Joyce C.
Object Type: Report
System: The UNT Digital Library
RHIC Longitudinal Parameter Revision (open access)

RHIC Longitudinal Parameter Revision

None
Date: December 15, 1997
Creator: Kewisch, J.; Ptitsin, V.; Rose, J. & Wei, J.
Object Type: Report
System: The UNT Digital Library
A site scale model for modeling unsaturated zone processes atYucca Mountain, Nevada (open access)

A site scale model for modeling unsaturated zone processes atYucca Mountain, Nevada

None
Date: December 15, 1997
Creator: Bodvarsson, G.S.; Wu, Y.S.; Sonnenthal, E.L.; Bandurraga, T.M.; Ahlers, C.F.; Haukwa, C. et al.
Object Type: Article
System: The UNT Digital Library
Hydrous pyrolysis of pole treating chemicals: (a) initital measurement of hydrous pyrolysis rates for napthalene and pentachlorophenol; (b) solubility of flourene at temperatures up to 150{degrees}C (open access)

Hydrous pyrolysis of pole treating chemicals: (a) initital measurement of hydrous pyrolysis rates for napthalene and pentachlorophenol; (b) solubility of flourene at temperatures up to 150{degrees}C

The temperature dependencies of the hydrous pyrolysis/oxidation (HPO) aqueous phase oxidation reactions of naphthalene and pentachlorophenol have been determined for phosphate buffered systems using Dickson-type reaction vessels. The HPO experimental temperatures ranged from 114{degrees}C to 148{degrees}C for naphthalene and 114{degrees}C to 137{degrees}C for pentachlorophenol. The loss of the organic species was used to determine activation energies of 95.8 kJ/mole for naphthalene oxidation and 84.8 kJ/mole for pentachlorophenol oxidation. Aqueous concentrations of target compounds and reaction intermediates were determined by gas chromatography and compound identification was verified by gas chromatography - mass spectrometry. During the experiments the pollutants were completely mineralized, as indicated by a stoichiometric production of inorganic carbon in the case of naphthalene and inorganic carbon and chloride in the case of pentachlorophenol. HPO of pentachlorophenol produced 2,3,5,6- tetrachlorophenol as an intermediate, whereas no intermediates amenable by GC were observed during the HPO of naphthalene. Measurements of the aqueous solubility of florin in an unbuffered solution have been made covering the temperature range from 20{degrees}C to 150{degrees}C. There is very good agreement between this data set and data previously published covering the lower temperature range (20{degrees}C to 75{degrees}C). Extension of the solubility measurements to higher temperatures covers the in …
Date: November 15, 1997
Creator: Leif, R. N., LLNL
Object Type: Report
System: The UNT Digital Library
Identification and Evaluation of Fluvial-Dominated Deltaic Reservoirs. (open access)

Identification and Evaluation of Fluvial-Dominated Deltaic Reservoirs.

This document is provided as a Quarterly Technical Progress Report for the program entitled `Identification and Evaluation of Fluvial- Dominated Deltaic (Class I Oil) Reservoirs in Oklahoma`, covering the reporting period of July 1 - September 30, 1997. Work is progressing as expected for the project. The Tonkawa Play workshop was completed as scheduled on July 9, 1997 in Norman Oklahoma. It was attended by 101 people of whom about 55 were operators. The Bartlesville workshop is scheduled for October and November 1997, in three different sites including Tulsa, Bartlesville, and Norman, Oklahoma. The FDD computer facility is fully operational. During this quarter, there were 10 industry individuals who used the computer facility. This project is serving an extremely valuable role in the technology transfer activities for the Oklahoma petroleum industry, with very positive industry feedback.
Date: November 15, 1997
Creator: Baken, Mary K. & Andrews, Richard
Object Type: Report
System: The UNT Digital Library
The atmospheric neutrino flavor ratio in Soudan 2. (open access)

The atmospheric neutrino flavor ratio in Soudan 2.

We have measured the flavor ratio of ratios (R) in atmospheric neutrino interactions using a 1.52 kton-year exposure of Soudan 2. We find R = 0.67 {+-} 0.15{sub {minus}0.06}{sup +0.04}. This value is about 2{sigma} from the expected value of 1.0 and is consistent with the anomalous ratios measured by the Kamiokande and IMB experiments. We note that since our acceptance matrix is different from those of the water Cherenkov experiments we would not expect to measure the same value of R, unless R=1.
Date: October 15, 1997
Creator: Goodman, M.
Object Type: Article
System: The UNT Digital Library
The Beam Lifetime and Emittance Growth in RHIC under Normal Operating Conditions and with a Hydrogen Gas Jet (open access)

The Beam Lifetime and Emittance Growth in RHIC under Normal Operating Conditions and with a Hydrogen Gas Jet

This report talks about The Beam Lifetime and Emittance Growth in RHIC under Normal Operating Conditions and with a Hydrogen Gas Jet
Date: October 15, 1997
Creator: D., Trbojevic
Object Type: Report
System: The UNT Digital Library
Crystal Ball Single Event Display (open access)

Crystal Ball Single Event Display

The Single Event Display (SED) is a routine that is designed to provide information graphically about a triggered event within the Crystal Ball. The SED is written entirely in FORTRAN and uses the CERN-based HICZ graphing package. The primary display shows the amount of energy deposited in each of the NaI crystals on a Mercator-like projection of the crystals. Ten different shades and colors correspond to varying amounts of energy deposited within a crystal. Information about energy clusters is displayed on the crystal map by outlining in red the thirteen (or twelve) crystals contained within a cluster and assigning each cluster a number. Additional information about energy clusters is provided in a series of boxes containing useful data about the energy distribution among the crystals within the cluster. Other information shown on the event display include the event trigger type and data about {pi}{sup o}`s and {eta}`s formed from pairs of clusters as found by the analyzer. A description of the major features is given, along with some information on how to install the SED into the analyzer.
Date: October 15, 1997
Creator: Grosnick, D.; Gibson, A.; Allgower, C. & Alyea, J.
Object Type: Report
System: The UNT Digital Library
Description of fuel element brush assembly`s fabrication for 105-K west (open access)

Description of fuel element brush assembly`s fabrication for 105-K west

This report is a description of the process to redesign and fabricate, as well as, describe the features of the Fuel Element Brush Assembly used in the 105-K West Basin. This narrative description will identify problems that occurred during the redesigning and fabrication of the 105-K West Basin Fuel Element Brush Assembly and specifically address their solutions.
Date: October 15, 1997
Creator: Maassen, D.P., Westinghouse Hanford, Richland, WA
Object Type: Report
System: The UNT Digital Library
Electric utility applications of hydrogen energy storage systems (open access)

Electric utility applications of hydrogen energy storage systems

This report examines the capital cost associated with various energy storage systems that have been installed for electric utility application. The storage systems considered in this study are Battery Energy Storage (BES), Superconducting Magnetic Energy Storage (SMES) and Flywheel Energy Storage (FES). The report also projects the cost reductions that may be anticipated as these technologies come down the learning curve. This data will serve as a base-line for comparing the cost-effectiveness of hydrogen energy storage (HES) systems in the electric utility sector. Since pumped hydro or compressed air energy storage (CAES) is not particularly suitable for distributed storage, they are not considered in this report. There are no comparable HES systems in existence in the electric utility sector. However, there are numerous studies that have assessed the current and projected cost of hydrogen energy storage system. This report uses such data to compare the cost of HES systems with that of other storage systems in order to draw some conclusions as to the applications and the cost-effectiveness of hydrogen as a electricity storage alternative.
Date: October 15, 1997
Creator: Swaminathan, S. & Sen, R.K.
Object Type: Report
System: The UNT Digital Library
Fly ash-enhanced aluminum composites for automotive parts. Report for program startup to September 30, 1997 (open access)

Fly ash-enhanced aluminum composites for automotive parts. Report for program startup to September 30, 1997

To produce and evaluate the use of aluminum ''ashalloys''--metal matrix composites that incorporate coal fly ash--in the commercial manufacture of cast automotive parts. The use of fly ash as an additive will help reduce the weight and cost of automotive parts, improve selected material properties, and reduce energy consumption and pollution.
Date: October 15, 1997
Creator: Golden, Dean & Rohatgi, Pradeep
Object Type: Report
System: The UNT Digital Library
Gyrokinetic theory for arbitrary wavelength electromagnetic modes in tokamaks (open access)

Gyrokinetic theory for arbitrary wavelength electromagnetic modes in tokamaks

A linear gyrokinetic system for arbitrary wavelength electromagnetic modes is developed. A wide range of modes in inhomogeneous plasmas, such as the internal kink modes, the toroidal Alfven eigenmode (TAE) modes, and the drift modes, can be recovered from this system. The inclusion of most of the interesting physical factors into a single framework enables one to look at many familiar modes simultaneously and thus to study the modifications of and the interactions between them in a systematic way. Especially, the authors are able to investigate self-consistently the kinetic MHD phenomena entirely from the kinetic side. Phase space Lagrangian Lie perturbation methods and a newly developed computer algebra package for vector analysis in general coordinate system are utilized in the analytical derivation. In tokamak geometries, a 2D finite element code has been developed and tested. In this paper, they present the basic theoretical formalism and some of the preliminary results.
Date: October 15, 1997
Creator: Qin, H.; Tang, W.M. & Rewoldt, G.
Object Type: Report
System: The UNT Digital Library
HIGH SO2 REMOVAL EFFICIENCY TESTING (open access)

HIGH SO2 REMOVAL EFFICIENCY TESTING

This final report describes the results of performance tests at six full-scale wet lime- and limestone-reagent flue gas desulfurization (FGD) systems. The objective of these tests was to evaluate the effectiveness of low capital cost sulfur dioxide (SO{sub 2}) removal upgrades for existing FGD systems as an option for complying with the provisions of the Clean Air Act Amendments of 1990. The upgrade options tested at the limestone-reagent systems included the use of organic acid additives (dibasic acid (DBA) and/or sodium formate) as well as increased reagent ratio (higher excess limestone levels in the recirculating slurry solids) and absorber liquid-to-gas ratio. One system also tested operating at higher flue gas velocities to allow the existing FGD system to treat flue gas from an adjacent, unscrubbed unit. Upgrade options for the one lime-based system tested included increased absorber venturi pressure drop and increased sulfite concentration in the recirculating slurry liquor.
Date: October 15, 1997
Creator: Blythe, Gary M. & Phillips, James L.
Object Type: Report
System: The UNT Digital Library
Improved Oil Recovery in Fluvial Dominated Deltaic Reservoirs of Kansas - Near-Term (open access)

Improved Oil Recovery in Fluvial Dominated Deltaic Reservoirs of Kansas - Near-Term

The objective of this study is to study waterflood problems of the type found in Morrow sandstone. The major tasks undertaken are reservoir characterization and the development of a reservoir database; volumetric analysis to evaluate production performance; reservoir modeling; identification of operational problems; identification of unrecovered mobile oil and estimation of recovery factors; and identification of the most efficient and economical recovery process.
Date: October 15, 1997
Creator: Walton, A.; McCune, D.; Green, D.W.; Willhite, G.P.; Watney, L.; Michnick, M. et al.
Object Type: Report
System: The UNT Digital Library
Increased Oil Production and Reserves Utilizing Secondary/Tertiary Recovery Techniques on Small Reservoirs in the Paradox Basin, Utah, Quarterly Report: July-September 1997 (open access)

Increased Oil Production and Reserves Utilizing Secondary/Tertiary Recovery Techniques on Small Reservoirs in the Paradox Basin, Utah, Quarterly Report: July-September 1997

The primary objective of this project is to enhance domestic petroleum production by demonstration and technology transfer of an advanced oil recovery technology in the Paradox basin, southeastern Utah. If this project can demonstrate technical and economic feasibility, the technique can be applied to approximately 100 additional small fields in the Paradox basin alone, and result in increased recovery of 150 to 200 million barrels of oil. This project is designed to characterize five shallow-shelf carbonate reservoirs in the Pennsylvanian (Desmoinesian) Paradox Formation and choose the best candidate for a pilot demonstration project for either a waterflood or carbon dioxide- (CO{sub 2}-) flood project. The field demonstration, monitoring of field performance, and associated validation activities will take place in the Paradox basin within the Navajo Nation. The results of this project will be transferred to industry and other researchers through a petroleum extension service, creation of digital databases for distribution, technical workshops and seminars, field trips, technical presentations at national and regional professional meetings, and publication in newsletters and various technical or trade journals.
Date: October 15, 1997
Creator: Chidsey, Thomas C., Jr.; Lorenz, Douglas M. & Culham, W. E.
Object Type: Report
System: The UNT Digital Library
The MINOS long-baseline experiment at Fermilab. (open access)

The MINOS long-baseline experiment at Fermilab.

The MINOS long-baseline experiment will search for neutrino oscillations by measuring an intense {nu}{sub {mu}} beam at the end of a 730 km flight path. The 10,000 ton MINOS far detector will utilize magnetized steel plates interleaved with track chambers to reconstruct event topologies and to measure the energies of the muons, hadrons and electromagnetic showers produced by neutrino interactions. The experiment is designed to detect {nu}{sub {mu}} {r_arrow} {nu}{sub {tau}} and {nu}{sub {mu}} {r_arrow} {nu}{sub e} oscillations with {Delta}m{sup 2} {ge} 0.001 eV{sup 2} and sin{sup 2}(2{theta}) {ge} 0.01. Any oscillation signal observed can be verified and studied by several independent tests: a near/far rate comparison, the NC/CC event ratio, the CC and NC event energy spectra, and the identification of electrons and {tau} leptons. The neutrino beam can be operated in both wide-band and narrow-band configurations, allowing the detailed study oscillation phenomena. The experiment is scheduled to begin operation in 2001.
Date: October 15, 1997
Creator: Ayres, D. S.
Object Type: Article
System: The UNT Digital Library
Molecular genetics of metal detoxification: Prospects for phytoremediation. 1997 annual progress report (open access)

Molecular genetics of metal detoxification: Prospects for phytoremediation. 1997 annual progress report

'The authors proposed to characterize a number of fission yeast mutants that are hypersensitivity to cadmium and deficient in the production of metal-peptide complexes. For each of the mutants the authors sought to clone the gene responsible for the mutant phenotype and more importantly to define the gene function. They summarize the progress made thus far for each of the mutants. Mutants that hypoproduce phytochelatins are: (1) DS12--The gene has been cloned, but a full length cDNA remains to be isolated. They believe the longest clone is short at the 5 feet end by less than 100 bp. This gene encodes sulfite reductase and its function is needed for Pb-induced sulfide production, but not Cd-induced sulfide production. Since this enzyme acts upstream of cysteine biosynthesis, the likely reason that this mutant hypoproduces phytochelatins is that it fails to produce sufficient cysteine during Cd stress. (2) JS563--The gene has been cloned and found to encode a sulfide dehydrogenase. In vitro, the authors found that the protein binds FAD, converts S{sup 2-} to S{sup 0} while reducing quinone. The protein is membrane associated and has been localized to the mitochondria. Its likely function is to detoxify sulfide in the mitochondria resulting from …
Date: October 15, 1997
Creator: Ow, D.W.
Object Type: Report
System: The UNT Digital Library
Project Hanford management contract quality assurance program implementation plan for nuclear facilities (open access)

Project Hanford management contract quality assurance program implementation plan for nuclear facilities

During transition from the Westinghouse Hanford Company (WHC) Management and Operations (M and O) contract to the Fluor Daniel Hanford (FDH) Management and Integration (M and I) contract, existing WHC policies, procedures, and manuals were reviewed to determine which to adopt on an interim basis. Both WHC-SP-1131,Hanford Quality Assurance Program and Implementation Plan, and WHC-CM-4-2, Quality Assurance Manual, were adopted; however, it was recognized that revisions were required to address the functions and responsibilities of the Project Hanford Management Contract (PHMC). This Quality Assurance Program Implementation Plan for Nuclear Facilities (HNF-SP-1228) supersedes the implementation portion of WHC-SP-1 13 1, Rev. 1. The revised Quality Assurance (QA) Program is documented in the Project Hanford Quality Assurance Program Description (QAPD), HNF-MP-599. That document replaces the QA Program in WHC-SP-1131, Rev. 1. The scope of this document is limited to documenting the nuclear facilities managed by FDH and its Major Subcontractors (MSCS) and the status of the implementation of 10 CFR 830.120, Quality Assurance Requirements, at those facilities. Since the QA Program for the nuclear facilities is now documented in the QAPD, future updates of the information provided in this plan will be by letter. The layout of this plan is similar to …
Date: October 15, 1997
Creator: Bibb, E. K.
Object Type: Report
System: The UNT Digital Library