1972-1997, Twenty-five years of energy and environmental history : lessons learned. (open access)

1972-1997, Twenty-five years of energy and environmental history : lessons learned.

Given the events of the past 25 years concerning energy and environmental issues and our reaction to them, what lessons can we learn? First, the individual American consumer wants and expects energy to be a stable commodity with low prices and easy availability. As evidenced by the heated debate over increasing the federal gasoline tax by $.05 per gallon (which would still leave Americans paying only one-third of what Europeans pay for gasoline), increases in energy prices elicit very strong public and political opposition. As further evidence, it has been argued that the general public support of the Gulf War was due, in part, to a recognition of the need to maintain a stable source of cheap oil from the region. The American public wants to maintain the benefits of cheap and abundant energy and expects its political leaders to make it happen. A second lesson is that if constraints on the energy supply do occur (e.g., the OPEC-imposed oil embargo) ardor environmental impacts from energy use do appear to be significant (e.g., SO{sub 2} and CO{sub 2} emissions), the preference is for a technology fix rather than a behavioral change. This is evidenced by our reliance on moving low-sulfur …
Date: December 17, 1997
Creator: Drucker, H.
Object Type: Article
System: The UNT Digital Library
Activated carbon testing for the 200 area effluent treatment facility (open access)

Activated carbon testing for the 200 area effluent treatment facility

This report documents pilot and laboratory scale testing of activated carbon for use in the 200 Area Effluent Treatment Facility peroxide decomposer columns. Recommendations are made concerning column operating conditions and hardware design, the optimum type of carbon for use in the plant, and possible further studies.
Date: January 17, 1997
Creator: Wagner, R. N.
Object Type: Report
System: The UNT Digital Library
Advanced Reservoir Characterization and Evaluation of CO2 Gravity Drainage in the Naturally Fractured Spraberry Reservoir (open access)

Advanced Reservoir Characterization and Evaluation of CO2 Gravity Drainage in the Naturally Fractured Spraberry Reservoir

Natural fractures exert a strong influence over oil production in Spraberry Trend Area reservoirs in the Permian Basin of west Texas. The importance of the fracture network has been known since the 1950s, but until recently, there has been very little detailed study of the fractures themselves. In 1996, a horizontal Spraberry well was cored as part of a DOE Class III Field Demonstration Project. Fractures from the horizontal core as well as other fractures encountered in vertical Spraberry cores were analyzed in detail for information on both large scale features including orientation and spacing and small-scale features such as the relationships between fracture mineralization and matrix rock composition. At least three sets of fractures are found within the upper and middle Spraberry cores. These sets have distinct orientations, spacing, mineralization, distribution with respect to lithology, and surface characteristics (Lorenz, 1997). Fractures found in the 1U zone of the upper Spraberry have a NE strike, and tend to be partly mineralized with barite, quartz, and dolomite. Distribution of these mineral phases can greatly affect conductivity between the fractures and the rock matrix. The 5U zone of the upper Spraberry contains fractures with NNE and ENE orientations. The NNE set of …
Date: December 17, 1997
Creator: Schechter, David S.
Object Type: Report
System: The UNT Digital Library
Analysis of Accelerants and Fire Debris Using Aroma Detection Technology (open access)

Analysis of Accelerants and Fire Debris Using Aroma Detection Technology

The purpose of this work was to investigate the utility of electronic aroma detection technologies for the detection and identification of accelerant residues in suspected arson debris. Through the analysis of known accelerant residues, a trained neural network was developed for classifying suspected arson samples. Three unknown fire debris samples were classified using this neural network. The item corresponding to diesel fuel was correctly identified every time. For the other two items, wide variations in sample concentration and excessive water content, producing high sample humidities, were shown to influence the sensor response. Sorbent sampling prior to aroma detection was demonstrated to reduce these problems and to allow proper neural network classification of the remaining items corresponding to kerosene and gasoline.
Date: January 17, 1997
Creator: Barshick, S. A.
Object Type: Article
System: The UNT Digital Library
Assessment of Neptunium, Americium, and Curium in the Savannah River Site Environment (open access)

Assessment of Neptunium, Americium, and Curium in the Savannah River Site Environment

A series of documents has been published in which the impact of various radionuclides released to the environment by Savannah River Site (SRS) operations has been assessed. The quantity released, the disposition of the radionuclides in the environment, and the dose to offsite individuals has been presented for activation products, carbon cesium, iodine, plutonium, selected fission products, strontium, technetium, tritium, uranium, and the noble gases. An assessment of the impact of nonradioactive mercury also has been published.This document assesses the impact of radioactive transuranics released from SRS facilities since the first reactor became operational late in 1953. The isotopes reported here are 239Np, 241Am, and 244Cm.
Date: December 17, 1997
Creator: Carlton, W.H.
Object Type: Report
System: The UNT Digital Library
Automatic differentiation and Navier-Stokes. (open access)

Automatic differentiation and Navier-Stokes.

We describe the use of automatic differentiation (AD) to enhance a compressible Navier-Stokes model. With the solver, AD is used to accelerate convergence by more than an order of magnitude. Outside the solver, AD is used to compute the derivatives needed for optimization. We emphasize the potential for performance gains if the programmer does not treat AD as a black box, but instead utilizes high-level knowledge about the nature of the application.
Date: December 17, 1997
Creator: Bischof, C.; Hovland, P. & Mohammadi, B.
Object Type: Article
System: The UNT Digital Library
Bioethanol - the Climate-Cool Fuel: Biofuels For the Global Environment Fact Sheet (open access)

Bioethanol - the Climate-Cool Fuel: Biofuels For the Global Environment Fact Sheet

Bioethanol is alcohol fuel made from cellulosic biomass-renewable resources such as trees, grasses, much of the material in municipal solid waste, and forestry and agricultural residues. Compared to the fossil fuels it will displace, bioethanol contributes little or no net CO2 to the earth's atmosphere.
Date: November 17, 1997
Creator: unknown
Object Type: Book
System: The UNT Digital Library
Cascaded wavelength division multiplexing for byte-wide optical interconnects (open access)

Cascaded wavelength division multiplexing for byte-wide optical interconnects

We demonstrate a wavelength division multiplexing approach for byte-wide optical interconnects over multimode fiber optic ribbon cable using filters based on common plastic ferrules. A dual wavelength link with eight cascaded filter stages exhibits bit error rates {le}l0{sup -l4}.
Date: November 17, 1997
Creator: Deri, R. J.; Garrett, H. E.; Germelos, S.; Haigh, R. E.; Henderer, B. D.; Lowry, M. E. et al.
Object Type: Article
System: The UNT Digital Library
Definition and means of maintaining the structural confinement features portion of the PFP safety envelope. Revision 1 (open access)

Definition and means of maintaining the structural confinement features portion of the PFP safety envelope. Revision 1

This document identifies and documents the justification for the safety classification of the Plutonium Finishing Plant (PFP) buildings and structures.
Date: June 17, 1997
Creator: Russell, R.A.
Object Type: Report
System: The UNT Digital Library
Development of a Novel Activated Carbon Based Adsorbents for control of Mercury Emissions from Coal-Fired Power Plants (open access)

Development of a Novel Activated Carbon Based Adsorbents for control of Mercury Emissions from Coal-Fired Power Plants

The overall objective of this study is to evaluate pertinent design and operational parameters that would enable successful application of activated carbon adsorption for the reduction of mercury emissions from coal-fired power plants. The study will evaluate the most suitable impregnate such as sulfur, chloride and other chelating agents for its ability to enhance the adsorptive capacity of activated carbon for mercury vapor under various process conditions. The main process variables to be evaluated include temperature, mercury concentration and speciation, relative humidity, oxygen content, and presence of S0{sub 2} and NO{sub x} in the flue gas. The optimal amount of impregnate for each of these carbons will be determined based on the exhibited performance. Another important parameter which governs the applicability of adsorption technology for the flue gas clean up is the rate at which vapor phase mercury is being removed from the flue gas by activated carbon. Therefore, the second part of this study will evaluate the adsorption kinetics using the impregnated activated carbons listed above. The rate of mercury uptake will also be evaluated under the process conditions that are representative of coal-fired power plants. Concerned with the ability of the adsorbed mercury to migrate back into the …
Date: March 17, 1997
Creator: Vidic, R.D.
Object Type: Report
System: The UNT Digital Library
DMS release 2 quality assurance (QA) plan (open access)

DMS release 2 quality assurance (QA) plan

This document defines the QA activities that will be Pursued during the development of the WRAP I DMS Release 2 software.
Date: January 17, 1997
Creator: Weidert, J.R.
Object Type: Report
System: The UNT Digital Library
Engineering report (conceptual design) PFP solution stabilization (open access)

Engineering report (conceptual design) PFP solution stabilization

This Engineering Report (Conceptual Design) addresses remediation of the plutonium-bearing solutions currently in inventory at the Plutonium Finishing Plant (PFP). The recommendation from the Environmental Impact Statement (EIS) is that the solutions be treated thermally and stabilized as a solid for long term storage. For solutions which are not discardable, the baseline plan is to utilize a denitration process to stabilize the solutions prior to packaging for storage.
Date: July 17, 1997
Creator: Witt, J. B.
Object Type: Report
System: The UNT Digital Library
Evaluation of selected ex-reactor accidents related to the tritium and medical isotope production mission at the FFTF (open access)

Evaluation of selected ex-reactor accidents related to the tritium and medical isotope production mission at the FFTF

The Fast Flux Test Facility (FFTF) has been proposed as a production facility for tritium and medical isotopes. A range of postulated accidents related to ex-reactor irradiated fuel and target handling were identified and evaluated using new source terms for the higher fuel enrichment and for the tritium and medical isotope targets. In addition, two in-containment sodium spill accidents were re-evaluated to estimate effects of increased fuel enrichment and the presence of the Rapid Retrieval System. Radiological and toxicological consequences of the analyzed accidents were found to be well within applicable risk guidelines.
Date: November 17, 1997
Creator: Himes, D. A.
Object Type: Report
System: The UNT Digital Library
Exploratory research on novel coal liquefaction concept. Quarterly report, October 1, 1996--December 31, 1996 (open access)

Exploratory research on novel coal liquefaction concept. Quarterly report, October 1, 1996--December 31, 1996

A goal of this work was to reduce the cost associated with hydrogen ion reagent `A`. Microautoclave tests were previously conducted using `A`/dry coal = 1.0. This quarter test were completed using a ratio of 2.0. Conversion was poor at the low ratio. Additional reagents did not improve the conversion.
Date: February 17, 1997
Creator: Winschel, R. A.; Brandes, S. D. & Derbyshire, F. J.
Object Type: Report
System: The UNT Digital Library
Exposure calculations for the FRG isotopic heat source projectenvironmental assessment (open access)

Exposure calculations for the FRG isotopic heat source projectenvironmental assessment

The report documents the maximum exposure for transfer of the Federal Republic of Germany (FRG) Isotopic Heat Sources from the 324 Building and placed in interim storage at the Central Waste Complex (CWC). These results are to be reported in the Environmental Assessment DOE-EA- 1 21 1.
Date: June 17, 1997
Creator: Metcalf, I. L.
Object Type: Report
System: The UNT Digital Library
Final design review summary report for the TN-WHC cask and transportation system (open access)

Final design review summary report for the TN-WHC cask and transportation system

This document represents comments generated from a review of Transnuclear`s Final Design Package distributed on December 10, 1996 and a review of the Final Design Analysis Report meeting held on December 17 & 18, 1996. The Final design describes desicn features and presents final analyses @j performed to fabricate and operate the system while meeting the Cask/Transportation Functions and Requirements, WHC-SD-SNF-FRD-011, Rev. 0 and specification WHC-S-0396, Rev. 1.
Date: January 17, 1997
Creator: Kee, A.T.
Object Type: Report
System: The UNT Digital Library
First year results from LOTIS (open access)

First year results from LOTIS

LOTIS (Livermore Optical Transient Imaging System) is a gamma-ray burst optical couterpart search experiment located near Lawrence Livermore National Laboratory in California. The system is linked to the GCN (GRB Coordinates Network) real-time coordinate distribution network and can respond to a burst trigger in 6-15 seconds. LOTIS has a total field-of-view of 17.4 degrees x 17.4 degrees with a completeness sensitivity of mv {approximately} 11 for a 10 second integration time. Since operations began in October 1996, LOTIS has responded to over 30 GCN/BATSE GRB triggers. Seven of these triggers are considered good events subject to the criteria of clear weather conditions, {lt}60 S RESPONSE TIME, AND {gt}50% coverage of the final BATSE 3(sigma) error circle. We discuss results from the first year of LOTIS operations with an emphasis on the observations and analysis of GRB 971006 (BATSE trigger 6414).
Date: November 17, 1997
Creator: Williams, G. G.; Parks, H. S. & Ables, E.
Object Type: Article
System: The UNT Digital Library
Functional design criteria for standard hydrogen monitoring system portable platform (open access)

Functional design criteria for standard hydrogen monitoring system portable platform

Functional design description for a Standard-E cabinet arrangement Standard Hydrogen Monitoring System Portable Platform.
Date: January 17, 1997
Creator: Schneider, T.C.
Object Type: Report
System: The UNT Digital Library
Geothermal Heat Pump Benchmarking Report (open access)

Geothermal Heat Pump Benchmarking Report

A benchmarking study was conducted on behalf of the Department of Energy to determine the critical factors in successful utility geothermal heat pump programs. A Successful program is one that has achieved significant market penetration. Successfully marketing geothermal heat pumps has presented some major challenges to the utility industry. However, select utilities have developed programs that generate significant GHP sales. This benchmarking study concludes that there are three factors critical to the success of utility GHP marking programs: (1) Top management marketing commitment; (2) An understanding of the fundamentals of marketing and business development; and (3) An aggressive competitive posture. To generate significant GHP sales, competitive market forces must by used. However, because utilities have functioned only in a regulated arena, these companies and their leaders are unschooled in competitive business practices. Therefore, a lack of experience coupled with an intrinsically non-competitive culture yields an industry environment that impedes the generation of significant GHP sales in many, but not all, utilities.
Date: January 17, 1997
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Glass formulation development and testing for the vitrification of Oak Ridge tank waste (open access)

Glass formulation development and testing for the vitrification of Oak Ridge tank waste

As part of joint project between the Oak Ridge National Laboratory (ORNL) and the Savannah River Technology Center (SRTC), radioactive waste from four different ORNL tank farms will be immobilized. This work, which is funded by the DOE Office of Science and Technology, is designed to create a direct comparison between grouting and vitrification technologies. SRTC efforts have been focused on developing and testing glass formulations for the vitrification of the tank wastes. The radioactive waste is from four different ORNL tank farms: Melton Valley Storage Tanks (MVST), Bethel Valley Evaporator Service Tanks (BVEST), Gunite and Associated Tanks (GAAT), and Old Hydrafracture Tanks (OHF). The sludges in these tanks contain transuranic radionuclides at levels which will make the final waste form (at reasonable waste loadings) TRU. Glass is an acceptable waste form because of its ability to accept a wide variety of components into its network structure. This is important since the waste varies significantly from tank to tank and from tank farm to tank farm. Therefore, glass formulation efforts have centered on developing a formulation that is robust enough to handle large fluctuations in waste composition. Crucible studies have been performed with simulated GAAT, MVST and BVEST sludges. The …
Date: June 17, 1997
Creator: Andrews, M. K. & Workman, P. J.
Object Type: Report
System: The UNT Digital Library
Hanford K Basins spent nuclear fuels project update (open access)

Hanford K Basins spent nuclear fuels project update

Twenty one hundred metric tons of spent nuclear fuel are stored in two concrete pools on the Hanford Site, known as the K Basins, near the Columbia River. The deteriorating conditions of the fuel and the basins provide engineering and management challenges to assure safe current and future storage. DE and S Hanford, Inc., part of the Fluor Daniel Hanford, Inc. lead team on the Project Hanford Management Contract, is constructing facilities and systems to move the fuel from current wet pool storage to a dry interim storage facility away from the Columbia River, and to treat and dispose of K Basins sludge, debris and water. The process starts in the K Basins where fuel elements will be removed from existing canisters, washed, and separated from sludge and scrap fuel pieces. Fuel elements will be placed in baskets and loaded into Multi-Canister Overpacks (MCOs) and into transportation casks. The MCO and cask will be transported into the Cold Vacuum Drying Facility, where free water within the MCO will be removed under vacuum at slightly elevated temperatures. The MCOs will be sealed and transported via the transport cask to the Canister Storage Building (CSB) in the 200 Area for staging prior …
Date: October 17, 1997
Creator: Hudson, F. G.
Object Type: Article
System: The UNT Digital Library
High-frequency acoustic imaging of L Lake Phase 4 [Savannah River Site, South Carolina] (open access)

High-frequency acoustic imaging of L Lake Phase 4 [Savannah River Site, South Carolina]

The objective of the seismic reflection and side scan sonar survey is to determine the location, aerial extent, and depth of burial pits situated along the reservoir bottom of L Lake, Savannah River Site, SC. The results will be used in the overall characterization of L Lake by providing continuous profile line coverage of the bottom and subbottom sediment structure along the entire length of the project area. The results are also intended to supplement previous scientific information obtained from soil samples, aerial photography, and radiometric studies. Resultant information will be used as input for an Environmental Impact Statement of the site. Overall, the seismic reflection data will provide better descriptions of variations in the actual subbottom conditions and help identify the differing sediment layers. The side scan sonar will help identify the location of the burial pits and any other features on the bottom of the reservoir. A 3.5 kiloHertz (kHz), high resolution subbottom profiling system and an EG&G Model 260 side scan sonar system were used to meet the primary objectives of the investigation.
Date: March 17, 1997
Creator: Dunn, D. L.; Sjostrom, Keith J.; Leist, Rodney L. & Harmon, Thomas S., Jr.
Object Type: Report
System: The UNT Digital Library
High performance gamma measurements of equipment retrieved from Hanford high-level nuclear waste tanks (open access)

High performance gamma measurements of equipment retrieved from Hanford high-level nuclear waste tanks

The cleanup of high level defense nuclear waste at the Hanford site presents several progressive challenges. Among these is the removal and disposal of various components from buried active waste tanks to allow new equipment insertion or hazards mitigation. A unique automated retrieval system at the tank provides for retrieval, high pressure washing, inventory measurement, and containment for disposal. Key to the inventory measurement is a three detector HPGe high performance gamma spectroscopy system capable of recovering data at up to 90% saturation (200,000 counts per second). Data recovery is based on a unique embedded electronic pulser and specialized software to report the inventory. Each of the detectors have different shielding specified through Monte Carlo simulation with the MCNP program. This shielding provides performance over a dynamic range of eight orders of magnitude. System description, calibration issues and operational experiences are discussed.
Date: March 17, 1997
Creator: Troyer, G. L.
Object Type: Report
System: The UNT Digital Library
Identification and Evaluation of Fluvial-Dominated Deltaic (Class 1 Oil) Reservoirs in Oklahoma: Yearly technical progress report for January 1-December 31, 1996 (open access)

Identification and Evaluation of Fluvial-Dominated Deltaic (Class 1 Oil) Reservoirs in Oklahoma: Yearly technical progress report for January 1-December 31, 1996

The Oklahoma Geological Survey (OGS), the Geo Information Systems department, and the School of Petroleum and Geological Engineering at the University of Oklahoma are engaged in a five-year program to identify and address Oklahoma`s oil recovery opportunities in fluvial-dominated deltaic (FDD) reservoirs. This program includes a systematic and comprehensive collection and evaluation of information on all FDD oil reservoirs in Oklahoma and the recovery technologies that have been (or could be) applied to those reservoirs with commercial success. During 1996, three highly successful FDD workshops involving 6 producing formations (4 plays) were completed: (1) Layton and Osage-Layton April 17 (2) Prue and Skinner June 19 and 26 (3) Cleveland October 17 (4) Peru October 17 (combined with Cleveland play). Each play was presented individually using the adopted protocol of stratigraphic interpretations, a regional overview, and two or more detailed field studies. The project goal was to have one field study from each play selected for waterflood simulation in order to demonstrate enhanced recovery technologies that can be used to recovery secondary oil. In this effort, software utilized for reservoir simulation included Eclipse and Boast 111. In some cases, because of poor production records and inadequate geologic data, field studies completed …
Date: November 17, 1997
Creator: Banken, M.K. & Andrews, R.
Object Type: Report
System: The UNT Digital Library