105-K Basin 1999 Debris Report (open access)

105-K Basin 1999 Debris Report

The purpose of this report is to describe the quantities, character, and management (e.g., segregation and management after removal) of 105-K Basins debris managed in calendar year 1999.
Date: May 1, 2000
Creator: WATSON, D.J.
Object Type: Report
System: The UNT Digital Library
Absolute intensities of the vacuum ultraviolet spectra in oxide etch plasma processing discharges (open access)

Absolute intensities of the vacuum ultraviolet spectra in oxide etch plasma processing discharges

In this paper, the authors report the absolute intensities of ultraviolet light between 4.9 eV and 24 eV ( 250 nm to 50 mn ) striking a silicon wafer in a number of oxide-etch processing discharges. The emphasis is on photons with energies greater than 8.8 eV, which have enough energy to damage SiO{sub 2}. These discharges were in an inductively-driven Gaseous Electronics Conference reference cell which had been modified to more closely resemble commercial etching tools. Comparisons of measurements made through a side port in the cell and through a hole in the wafer indicate that the VUV light in these discharges is strongly trapped. For the pure halocarbon gases examined in these experiments (C{sub 2}F{sub 6}, CHF{sub 3}, C{sub 4}F{sub 8}), the fluxes of VUV photons to the wafer varied from 1 x 10{sup 15} to 3 x 10{sup 15} photons/cm{sup 2} sec or equivalently from 1.5 to 5 mW/cm{sup 2}. These measurements imply that 0.1% to 0.3% of the rf source power to these discharges ends up hitting the wafer as VUV photons for the typical 20 mT, 200 W rf discharges. For typical ashing discharges containing pure oxygen, the VUV intensities are slightly higher--about 8 mW/cm{sup …
Date: May 1, 2000
Creator: Woodworth, Joseph R.; Riley, Merle E.; Amatucci, Vincent A.; Hamilton, Thomas W. & Aragon, Ben P.
Object Type: Article
System: The UNT Digital Library
An Adaptive System Approach to the Implementation and Evaluation of Digital Library Recommendation Systems (open access)

An Adaptive System Approach to the Implementation and Evaluation of Digital Library Recommendation Systems

None
Date: May 1, 2000
Creator: Bollen, J. & Rocha, L.
Object Type: Article
System: The UNT Digital Library
Advanced Fusion Technology Research and Development Annual Report to the u.s. Department of Energy October 1, 1998 Through September 30, 1999 (open access)
ADVANCED GAS TURBINE SYSTEMS RESEARCH PROGRAM (open access)

ADVANCED GAS TURBINE SYSTEMS RESEARCH PROGRAM

The activities of the Advanced Gas Turbine Systems Research (AGTSR) program are described in the quarterly report. As this program administers research, we have included all program activity herein within the past quarter dated. More specific research progress reports are provided weekly at the request of the AGTSR COR and are being sent to NETL. As for the administration of this program, items worthy of note are presented in extended bullet format following the appropriate heading.
Date: May 1, 2000
Creator: Golan, Lawrence P.
Object Type: Report
System: The UNT Digital Library
Advanced Geothermal Turbodrill (open access)

Advanced Geothermal Turbodrill

Approximately 50% of the cost of a new geothermal power plant is in the wells that must be drilled. Compared to the majority of oil and gas wells, geothermal wells are more difficult and costly to drill for several reasons. First, most U.S. geothermal resources consist of hot, hard crystalline rock formations which drill much slower than the relatively soft sedimentary formations associated with most oil and gas production. Second, high downhole temperatures can greatly shorten equipment life or preclude the use of some technologies altogether. Third, producing viable levels of electricity from geothermal fields requires the use of large diameter bores and a high degree of fluid communication, both of which increase drilling and completion costs. Optimizing fluid communication often requires creation of a directional well to intersect the best and largest number of fracture capable of producing hot geothermal fluids. Moineau motor stators made with elastomers cannot operate at geothermal temperatures, so they are limited to the upper portion of the hole. To overcome these limitations, Maurer Engineering Inc. (MEI) has developed a turbodrill that does not use elastomers and therefore can operate at geothermal temperatures. This new turbodrill uses a special gear assembly to reduce the output …
Date: May 1, 2000
Creator: Maurer, W. C.
Object Type: Report
System: The UNT Digital Library
ADVANCED HYBRID PARTICULATE COLLECTOR - PHASE III (open access)

ADVANCED HYBRID PARTICULATE COLLECTOR - PHASE III

A new concept in particulate control, called an advanced hybrid particulate collector (AHPC), is being developed under funding from the U.S. Department of Energy. The AHPC combines the best features of electrostatic precipitators (ESPs) and baghouses in a unique configuration. The AHPC concept consists of a combination of fabric filtration and electrostatic precipitation in the same housing, providing major synergism between the two collection methods, both in the particulate collection step and in the transfer of dust to the hopper. The AHPC provides ultrahigh collection efficiency, overcoming the problem of excessive fine-particle emission with conventional ESPs, and it solves the problem of reentrainment and re-collection of dust in conventional baghouses. In Phase II, a 2.5-MW-scale AHPC was designed, constructed, installed, and tested at the Big Stone power station. For Phase III, further testing of an improved version of the 2.5-MW-scale AHPC at the Big Stone power station is planned to facilitate commercialization of the AHPC technology.
Date: May 1, 2000
Creator: Miller, Stanley J. & Collings, Michael E.
Object Type: Report
System: The UNT Digital Library
Air Emission Inventory for the INEEL -- 1999 Emission Report (open access)

Air Emission Inventory for the INEEL -- 1999 Emission Report

This report presents the 1999 calendar year update of the Air Emission Inventory for the Idaho National Engineering and Environmental Laboratory (INEEL). The INEEL Air Emission Inventory documents sources and emissions of nonradionuclide pollutants from operations at the INEEL. The report describes the emission inventory process and all of the sources at the INEEL, and provides nonradionuclide emissions estimates for stationary sources.
Date: May 1, 2000
Creator: Zohner, Steven K
Object Type: Report
System: The UNT Digital Library
Alien Smuggling: Management and Operational Improvements Needed to Address Growing Problem (open access)

Alien Smuggling: Management and Operational Improvements Needed to Address Growing Problem

A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a legislative requirement, GAO reviewed the Immigration and Naturalization Service's (INS) implementation of a strategy to combat alien smuggling, focusing on: (1) the nature and extent of alien smuggling into the United States; (2) INS' strategy for combatting alien smuggling; and (3) how well the strategy has been implemented and the results to date."
Date: May 1, 2000
Creator: United States. General Accounting Office.
Object Type: Report
System: The UNT Digital Library
ALS Project Management Manual (open access)

ALS Project Management Manual

This manual has been prepared to help establish a consistent baseline of management practices across all ALS projects. It describes the initial process of planning a project, with a specific focus on the production of a formal project plan. We feel that the primary weakness in ALS project management efforts to date stems from a failure to appreciate the importance of ''up-front'' project planning. In this document, we present a guide (with examples) to preparing the documents necessary to properly plan, monitor, and control a project's activities. While following the manual will certainly not guarantee good project management, failure to address the issues we raise will dramatically reduce the chance of success. Here we define success as meeting the technical goals on schedule and within the prescribed budget.
Date: May 1, 2000
Creator: Krupnick, Jim & Harkins, Joe
Object Type: Report
System: The UNT Digital Library
Alternatives to Diesel Fuel in California - Fuel Cycle Energy and Emission Effects of Possible Replacements Due to the TAC Diesel Particulate Decision (open access)

Alternatives to Diesel Fuel in California - Fuel Cycle Energy and Emission Effects of Possible Replacements Due to the TAC Diesel Particulate Decision

Limitations on petroleum-based diesel fuel in California could occur pursuant to the 1998 declaration by California's Air Resources Board (CARB) that the particulate matter component of diesel exhaust is a carcinogen, therefore a toxic air contaminant (TAC) subject to the state's Proposition 65. It is the declared intention of CARB not to ban or restrict diesel fuel, per se, at this time. Assuming no total ban, Argonne National Laboratory (ANL) explored two feasible ''mid-course'' strategies, each of which results in some degree of (conventional) diesel displacement. In the first case, with substantial displacement of compression ignition by spark ignition engines, diesel fuel is assumed admissible for ignition assistance as a pilot fuel in natural gas (NG)-powered heavy-duty vehicles. Gasoline demand in California increases by 32.2 million liters (8.5 million gallons) per day overall, about 21 percent above projected 2010 baseline demand. Natural gas demand increases by 13.6 million diesel liter (3.6 million gallon) equivalents per day, about 7 percent above projected (total) consumption level. In the second case, ressionignition engines utilize substitutes for petroleum-based diesel having similar ignition and performance properties. For each case we estimated localized air emission plus generalized greenhouse gas and energy changes. Fuel replacement by di-methyl …
Date: May 1, 2000
Creator: Saraicks, Christopher L.; Rote, Donald M.; Stodolsky, Frank & Eberhardt, James J.
Object Type: Report
System: The UNT Digital Library
Analysis of Hazards Associated with a Process Involving Uranium Metal and Uranium Hydride Powders (open access)

Analysis of Hazards Associated with a Process Involving Uranium Metal and Uranium Hydride Powders

An analysis of the reaction chemistry and operational factors associated with processing uranium and uranium hydride powders is presented, focusing on a specific operation in the Development Division which was subjected to the Job Hazard Analysis (JHA) process. Primary emphasis is on the thermodynamic factors leading to pyrophoricity in common atmospheres. The discussion covers feed powders, cold-pressed and hot-pressed materials, and stray material resulting from the operations. The sensitivity of the various forms of material to pyrophoricity in common atmospheres is discussed. Operational recommendations for performing the work described are given.
Date: May 1, 2000
Creator: Bullock, J.S.
Object Type: Report
System: The UNT Digital Library
Annual Summary of Immobilized Low Activity Tank Waste (ILAW) Performance Assessment (open access)

Annual Summary of Immobilized Low Activity Tank Waste (ILAW) Performance Assessment

As required by the Department of Energy (DOE) order on radioactive waste management (DOE 1999a) as implemented by the Maintenance Plan for the Hanford Immobilized Low-Activity Tank Waste Performance Assessment (Mann 2000a), an annual summary of the adequacy of the Hanford Immobilized Low-Activity Tank Waste Performance Assessment (ILAW PA) must be submitted to DOE headquarters each year that a performance assessment is not submitted. Considering the results of data collection and analysis, the conclusions of the 1998 version of the ILAW PA (Mann 1998) as conditionally approved (DOE 1999b) remain valid, but new information indicates more conservatism in the results than previously estimated. A white paper (Mann 2000b) is attached as Appendix A to justify this statement. Recent ILAW performance estimates used on the waste form and geochemical data have resulted in increased confidence that the disposal of ILAW will meet performance objectives. The ILAW performance assessment program will continue to interact with science and technology activities, disposal facility design staff, and operations, as well as to continue to collect new waste form and disposal system data to further increase the understanding of the impacts of the disposal of ILAW. The next full performance assessment should be issued in the …
Date: May 1, 2000
Creator: MANN, F.M.
Object Type: Report
System: The UNT Digital Library
Application issues for large-area electrochromic windows incommercial buildings (open access)

Application issues for large-area electrochromic windows incommercial buildings

Projections of performance from small-area devices to large-area windows and enterprise marketing have created high expectations for electrochromic glazings. As a result, this paper seeks to precipitate an objective dialog between material scientists and building-application scientists to determine whether actual large-area electrochromic devices will result in significant performance benefits and what material improvements are needed, if any, to make electrochromics more practical for commercial building applications. Few in-situ tests have been conducted with large-area electrochromic windows applied in buildings. This study presents monitored results from a full-scale field test of large-area electrochromic windows to illustrate how this technology will perform in commercial buildings. The visible transmittance (Tv) of the installed electrochromic ranged from 0.11 to 0.38. The data are limited to the winter period for a south-east-facing window. The effect of actual device performance on lighting energy use, direct sun control, discomfort glare, and interior illumination is discussed. No mechanical system loads were monitored. These data demonstrate the use of electrochromics in a moderate climate and focus on the most restrictive visual task: computer use in offices. Through this small demonstration, we were able to determine that electrochromic windows can indeed provide unmitigated transparent views and a level of dynamic …
Date: May 1, 2000
Creator: Lee, Eleanor S. & DiBartolomeo, D.L.
Object Type: Article
System: The UNT Digital Library
Assessment of Donlee 3000-horsepower TurboFireXL boiler. Technology Installation Review (open access)

Assessment of Donlee 3000-horsepower TurboFireXL boiler. Technology Installation Review

This 'Technology Installation Review' (TIR) describes the TurboFireXL industrial boiler technology and presents information on existing applications, energy-saving mechanisms, installation requirements, and relevant case studies.
Date: May 1, 2000
Creator: unknown
Object Type: Report
System: The UNT Digital Library
ASSESSMENT OF THE SUBSURFACE FATE OF MONOETHANOLAMINE (open access)

ASSESSMENT OF THE SUBSURFACE FATE OF MONOETHANOLAMINE

Burial of amine reclaimer unit sludges and system filters has resulted in contamination of soil at the CanOxy Okotoks decommissioned sour gas-processing plant with amines, amine byproducts, and salts. A three-phase research program was devised to investigate the natural attenuation process that controls the subsurface transport and fate of these contaminants and to apply the results toward the development of a strategy for the remediation of this type of contamination in soils. Phase I experimental activities examined interactions between monoethanolamine (MEA) and sediment, the biodegradability of MEA in soils at various concentrations and temperatures, and the biodegradability of MEA sludge contamination in a soil slurry bioreactor. The transport and fate of MEA in the subsurface was found to be highly dependant on the nature of the release, particularly MEA concentration and conditions of the subsurface environment, i.e., pH, temperature, and oxygen availability. Pure compound biodegradation experiments in soil demonstrated rapid biodegradation of MEA under aerobic conditions and moderate temperatures (>6 C). Phase II landfarming activities confirmed that these contaminants are readily biodegradable in soil under ideal laboratory conditions, yet considerable toxicity was observed in the remaining material. Examination of water extracts from the treated soil suggested that the toxicity is …
Date: May 1, 2000
Creator: Sorensen, James A.; Gallagher, John R. & Kays, Lori G.
Object Type: Report
System: The UNT Digital Library
Assuring the Quality of Safety Analyses and Safety Analysis Documentation (open access)

Assuring the Quality of Safety Analyses and Safety Analysis Documentation

Planning, preparation, and submittal of safety analysis reports might be pursued in a manner similar to a quality-related procurement, where customer needs, expectations and acceptance criteria are established in advance. Then the product/service provider, the contractor, should apply various quality control processes to assure the desired characteristics of the product safety analysis documents. Improving the quality and acceptability to DOE of safety documents at first submittal should result in a more expeditious DOE review and approval process, thereby reducing costs of network and recycle through reviews.
Date: May 1, 2000
Creator: Johnson, John Edwin
Object Type: Article
System: The UNT Digital Library
Brine Generation Study (open access)

Brine Generation Study

In a May 1995 inspection of the WIPP-site Exhaust Shaft indicated that water was seeping through the shaft's concrete liner at depths of 50 to 85 feet below ground surface. In March 1996 a catch basin was installed at the base of the Exhaust Shaft to intercept and prevent fluid from entering the repository horizon. Analyses of fluid samples collected from the catch basin indicated that some samples had concentration levels that exceeded U.S. Environmental Protection Agency (EPA) toxicity characteristics for lead under Title 40 Code of Federal Regulations (CFR) {section} 261.24. Ventilation system operations, weather conditions, and seepage into the Exhaust Shaft have resulted in operational problems. First, increased moisture in the shaft has affected air filters on sampling probes located near the top of the Exhaust Shaft, thus preventing analysis of air samples. Second, production of fluid in the shaft reporting to the catch basin created a disposal problem of the fluid which has been classified as a hazardous material under 40 CFR {section} 261.24 for lead. Though these problems do not effect the stability of the shaft they are a nuisance in that they increase operational costs and impact operation of the Exhaust Shaft air-monitoring system.
Date: May 1, 2000
Creator: Solutions, Westinghouse TRU
Object Type: Report
System: The UNT Digital Library
Calibration-Free Electrical Conductivity Measurements for Highly Conductive Slags (open access)

Calibration-Free Electrical Conductivity Measurements for Highly Conductive Slags

This research involves the measurement of the electrical conductivity (K) for the ESR (electroslag remelting) slag (60 wt.% CaF{sub 2} - 20 wt.% CaO - 20 wt.% Al{sub 2}O{sub 3}) used in the decontamination of radioactive stainless steel. The electrical conductivity is measured with an improved high-accuracy-height-differential technique that requires no calibration. This method consists of making continuous AC impedance measurements over several successive depth increments of the coaxial cylindrical electrodes in the ESR slag. The electrical conductivity is then calculated from the slope of the plot of inverse impedance versus the depth of the electrodes in the slag. The improvements on the existing technique include an increased electrochemical cell geometry and the capability of measuring high precision depth increments and the associated impedances. These improvements allow this technique to be used for measuring the electrical conductivity of highly conductive slags such as the ESR slag. The volatilization rate and the volatile species of the ESR slag measured through thermogravimetric (TG) and mass spectroscopy analysis, respectively, reveal that the ESR slag composition essentially remains the same throughout the electrical conductivity experiments.
Date: May 1, 2000
Creator: Macdonald, Christopher J.; Gao, Huang; Pal, Uday B.; Van den Avyle, James A. & Melgaard, David K.
Object Type: Article
System: The UNT Digital Library
Calibration of electrical impedance tomography (open access)

Calibration of electrical impedance tomography

Over the past 10 years we have developed methods for imaging the electrical resistivity of soil and rock formations. These technologies have been called electrical resistance tomography of ERT (e.g. Daily and Owen, 1991). Recently we have been striving to extend this capability to include images of electric impedance--with a new nomenclature of electrical impedance tomography or EIT (Ramirez et al., 1999). Electrical impedance is simply a generalization of resistance. Whereas resistance is the zero frequency ratio of voltage and current, impedance includes both the magnitude and phase relationship between voltage and current at frequency. This phase and its frequency behavior is closely related to what in geophysics is called induced polarization or (Sumner, 1976). Why is this phase or IP important? IP is known to be related to many physical phenomena of importance so that image of IP will be maps of such things as mineralization and cation exchange IP (Marshall and Madden, 1959). Also, it is likely that IP, used in conjunction with resistivity, will yield information about the subsurface that can not be obtained by either piece of information separately. In order to define the accuracy of our technologies to image impedance we have constructed a physical …
Date: May 1, 2000
Creator: Daily, W & Ramirez, A
Object Type: Report
System: The UNT Digital Library
CALIBRATION OF SEISMIC ATTRIBUTES FOR RESERVOIR CHARACTERIZATION (open access)

CALIBRATION OF SEISMIC ATTRIBUTES FOR RESERVOIR CHARACTERIZATION

The project, ''Calibration of Seismic Attributes for Reservoir Characterization'' is on schedule as planned, with only minor departures from plan. They have been working on multiple data sets, including two public-domain sets, one proprietary data set with a corporate partner, and one other proprietary data set as a member of a consortium. They have expanded the use, on a regular basis, of high-end software well beyond that anticipated in the original work plan. The use of these high-end software packages has greatly enhanced their ability to identify, study, and evaluate potential attributes in the seismic data. In addition, the high end software has served the purpose of pointing them in the right direction to make simple and straightforward relationships between the rock physical parameters and the seismic data. They required the use of this software to initially discover those relationships, but the understanding of those relationships is, so far, very straightforward, and does not require the use of high-end software.
Date: May 1, 2000
Creator: Pennington, Wayne D.
Object Type: Report
System: The UNT Digital Library
CALIBRATION OF THE CRATED WASTE ASSAY MONITOR (CWAM) FOR THE LOW-LEVEL WASTE MEASUREMENTS FOR THE Y-12 PLANT (open access)

CALIBRATION OF THE CRATED WASTE ASSAY MONITOR (CWAM) FOR THE LOW-LEVEL WASTE MEASUREMENTS FOR THE Y-12 PLANT

None
Date: May 1, 2000
Creator: MELTON, S. & AL, ET
Object Type: Article
System: The UNT Digital Library
Canyon drainage induced mixing over a large basin (open access)

Canyon drainage induced mixing over a large basin

Complex terrain surrounding urbanized basins around the world has long been recognized to strongly affect the characteristics of vertical transport and mixing of pollutants. The Department of Energy's Vertical Transport and Mixing (VTMX) program will investigate mixing processes within night-time boundary layers over large urban basins. The program will launch several field experiments within the Salt Lake City basin in the coming years. This modeling study, like many other studies being undertaken by the participants of the VTMX programs, is intended to complement the proposed field experiments by numerically examining some of the flow interactions known to occur in large basins. Using idealized simulations, we particularly investigate drainage flows from deep canyons similar to those along the Wasatch Front into the Salt Lake City basin. Literature shows that under favorable conditions, drainage flows can generate bore waves that may propagate ahead of the density current (e.g., Simpson 1969; Simpson 1982; Crook and Miller 1985). Existence and frequency of such bore waves can profoundly influence the spatial and temporal variability of vertical transport and mixing within large basins. If bore waves do occur on a regular basis within the Salt Lake City basin (a task for the upcoming experiments to determine), …
Date: May 1, 2000
Creator: Stalker, J.
Object Type: Article
System: The UNT Digital Library
China's industrial sector in an international context (open access)

China's industrial sector in an international context

The industrial sector accounts for 40% of global energy use. In 1995, developing countries used an estimated 48 EJ for industrial production, over one-third of world total industrial primary energy use (Price et al., 1998). Industrial output and energy use in developing countries is dominated by China, India, and Brazil. China alone accounts for about 30 EJ (National Bureau of Statistics, 1999), or about 23% of world industrial energy use. China's industrial sector is extremely energy-intensive and accounted for almost 75% of the country's total energy use in 1997. Industrial energy use in China grew an average of 6.6% per year, from 14 EJ in 1985 to 30 EJ in 1997 (Sinton et al., 1996; National Bureau of Statistics, 1999). This growth is more than three times faster than the average growth that took place in the world during the past two decades. The industrial sector can be divided into light and heavy industry, reflecting the relative energy-intensity of the manufacturing processes. In China, about 80% of the energy used in the industrial sector is consumed by heavy industry. Of this, the largest energy-consuming industries are chemicals, ferrous metals, and building materials (Sinton et al., 1996). This paper presents the …
Date: May 1, 2000
Creator: Price, Lynn; Worrell, Ernst; Martin, Nathan; Lehman, Bryan & Sinton, Jonathan
Object Type: Report
System: The UNT Digital Library