Resource Type

Restructured Electricity Markets: California Market Design Enabled Exercise of Market Power (open access)

Restructured Electricity Markets: California Market Design Enabled Exercise of Market Power

A letter report issued by the General Accounting Office with an abstract that begins "Historically, utility monopolies have generated electricity and sold it to customers at prices set by state regulators. Today, private companies in 24 states compete to sell electricity at market prices determined by supply and demand. California is part of a broader western market in which electricity is routinely bought and sold across state and national boundaries. GAO found evidence that wholesale electricity suppliers exercised market power by raising prices above competitive levels during the summer of 2000 and at other times after the restructuring. Neither GAO's analysis nor other studies addressed whether market power exercised in California violated federal or other laws. The design of California's electricity market enabled individual wholesale electricity suppliers to exercise market power. Once prices rose, the design was ineffective in returning prices to competitive levels. Prominent experts on market design and industry experts generally agree that two principal market designs flaws increased wholesale suppliers' incentive and ability to raise prices above competitive levels: (1) retail prices were frozen and (2) the California Public Utilities Commission generally prohibited or discouraged long-term contracts between utilities and wholesale suppliers."
Date: June 21, 2002
Creator: United States. General Accounting Office.
System: The UNT Digital Library
Defense Budget: Need to Strengthen Guidance and Oversight of Contingency Operation Costs (open access)

Defense Budget: Need to Strengthen Guidance and Oversight of Contingency Operation Costs

A letter report issued by the General Accounting Office with an abstract that begins "The incremental costs for overseas military contingency operations, which include the enforcement of no-fly zones, humanitarian assistance, and peace enforcement, totaled more than $29 billion since 1991. Most of these costs were incurred in the Balkans and Southwest Asia. The Department of Defense (DOD) defines incremental costs as those above and beyond baseline training, operations, and personnel costs. Although most contingency operations expenditures GAO reviewed were appropriate, as much as $101 million was spent on questionable items, including cappuccino machines, golf memberships, and decorator furniture. Limited guidance and oversight, combined with a lack of cost consciousness, contributed to the questionable expenditures."
Date: May 21, 2002
Creator: United States. General Accounting Office.
System: The UNT Digital Library
Defense Logistics: Better Fuel Pricing Practices Will Improve Budget Accuracy (open access)

Defense Logistics: Better Fuel Pricing Practices Will Improve Budget Accuracy

A letter report issued by the General Accounting Office with an abstract that begins "The Department of Defense (DOD) Defense Working Capital Fund was used to buy $70 billion in commodities in fiscal year 2001. This amount is estimated to grow to $75 billion for fiscal year 2003. The department's financial management regulation states that fund activities will operate in a business-like fashion and incorporate full costs in determining the pricing of their products. The National Defense Authorization Act for Fiscal year 2001 requires that GAO review the working capital fund activities to identify any potential changes in current management processes or policies that would result in a more efficient and economical operation. The act also requires that GAO review the Defense Logistics Agency's (DLA) efficiency, effectiveness, and flexibility of operational practices and identify ways to improve services. One such DLA activity, the Defense Energy Support Center, sold $4.7 billion of various petroleum-related products to the military services in fiscal year 2001. DOD's fuel prices have not reflected the full cost of fuel as envisioned in the working capital fund concept because cash movements to the fund balance and surcharge inaccuracies have affected the stabilized annual fuel prices. Over $4 …
Date: June 21, 2002
Creator: United States. General Accounting Office.
System: The UNT Digital Library
Military Housing: Management Improvements Needed As the Pace of Privatization Quickens (open access)

Military Housing: Management Improvements Needed As the Pace of Privatization Quickens

A letter report issued by the General Accounting Office with an abstract that begins "The Department of Defense (DOD) estimates that 168,000 military family housing units are inadequate, lack modern amenities, and are in need of major renovation and replacement. According to DOD, completing this work using traditional military construction methods would take more than 20 years and cost $16 billion. To improve housing faster and more economically, Congress authorized the Military Housing Privatization Initiative in 1996. Although DOD has awarded contracts to construct or improve 16,000 units and has plans to privatize an additional 96,000 units by the end of fiscal year 2006, privatization projects are not supported by reliable or consistent needs assessments, and the overall requirement for military housing is not well-defined. The department has achieved two key financial goals for the privatization program--leveraging of government funds and lower project life-cycle costs. Although DOD has included provisions designed to protect the government's interests, GAO found areas where DOD could further enhance protections to the government. First, some contracts did not fully anticipate the increased rent to be paid to project developers as a result of a DOD initiative to increase housing allowances for service members. Second, although …
Date: June 21, 2002
Creator: United States. General Accounting Office.
System: The UNT Digital Library
Flood Insurance: Extent of Noncompliance with Purchase Requirements Is Unknown (open access)

Flood Insurance: Extent of Noncompliance with Purchase Requirements Is Unknown

A letter report issued by the General Accounting Office with an abstract that begins "The Federal Emergency Management Agency (FEMA) run National Flood Insurance Program (NFIP) has combined flood hazard mitigation efforts and insurance to protect homeowners against losses from floods. The program provides an incentive for communities to adopt floodplain management ordinances to mitigate the effect of flooding upon new or existing structures. Virtually all communities in the country with flood-prone areas now participate in the NFIP, and over four million U.S. households have flood insurance. Nevertheless, the President's proposed budget for 2003 characterizes the NFIP as "moderately effective," because many at-risk properties remain uninsured. The proposed budget establishes a goal to increase flood insurance policies in force by five percent in 2003 and would increase funding for flood zone mapping activities to better identify at-risk properties. Although the assessment and goal described in the proposed budget apply to the entire NFIP, the success of a particular component of the program--the mandatory purchase requirement--has been the subject of debate for many years. The federal bank regulators overseeing lending institutions that hold or service mortgages on properties that must have flood insurance believe that there is a high level of …
Date: June 21, 2002
Creator: United States. General Accounting Office.
System: The UNT Digital Library
Homeland Security: INS Cannot Locate Many Aliens Because It Lacks Reliable Address Information (open access)

Homeland Security: INS Cannot Locate Many Aliens Because It Lacks Reliable Address Information

A letter report issued by the General Accounting Office with an abstract that begins "Following the terrorist attacks of September 11, 2001, the federal government's need to locate aliens in the United States was considerably heightened. Without reliable alien address information, the government is impeded in its ability to find aliens who represent a national security threat or who could help with the nation's anti-terrorism efforts. Requesters from both the Senate and House asked GAO to review the reliability of INS's alien address information and identify the ways it could be improved."
Date: November 21, 2002
Creator: United States. General Accounting Office.
System: The UNT Digital Library
Delaware Basin Monitoring Annual Report (open access)

Delaware Basin Monitoring Annual Report

The Delaware Basin Drilling Surveillance Program (DBDSP) is designed to monitor drilling activities in the vicinity of the Waste Isolation Pilot Plant (WIPP). This program is based on Environmental Protection Agency (EPA) requirements. The EPA environmental standards for the management and disposal of transuranic (TRU) radioactive waste are codified in 40 CFR Part 191 (EPA 1993). Subparts B and C of the standard address the disposal of radioactive waste. The standard requires the Department of Energy (DOE) to demonstrate the expected performance of the disposal system using a probabilistic risk assessment or performance assessment (PA). This PA must show that the expected repository performance will not release radioactive material above limits set by the EPA's standard. This assessment must include the consideration of inadvertent drilling into the repository at some future time.
Date: September 21, 2002
Creator: Washington Regulatory and Environmental Services
System: The UNT Digital Library
Medicare: Payments for Covered Prescription Drugs (open access)

Medicare: Payments for Covered Prescription Drugs

This report provides an overview of the payments for covered prescription drugs for Medicare.
Date: May 21, 2002
Creator: O'Sullivan, Jennifer
System: The UNT Digital Library
A Parallel Multigrid Method for the Finite Element Analysis of Mechanical Contact (open access)

A Parallel Multigrid Method for the Finite Element Analysis of Mechanical Contact

A geometrical multigrid method for solving the linearized matrix equations arising from node-on-face three-dimensional finite element contact is described. The development of an efficient implementation of this combination that minimizes both the memory requirements and the computational cost requires careful construction and storage of the portion of the coarse mesh stiffness matrices that are associated with the contact stiffness on the fine mesh. The multigrid contact algorithm is parallelized in a manner suitable for distributed memory architectures: results are presented that demonstrates the scheme's scalability. The solution of a large contact problem derived from an analysis of the factory joints present in the Space Shuttle reusable solid rocket motor demonstrates the usefulness of the general approach.
Date: March 21, 2002
Creator: Hales, J. D. & Parsons, I. D.
System: The UNT Digital Library
Privacy Protection for Online Information (open access)

Privacy Protection for Online Information

This report focuses on one aspect of online privacy – collection, use, and dissemination of data via the Internet, and discusses related federal privacy laws and selected legislation.
Date: May 21, 2002
Creator: Stevens, Gina Marie
System: The UNT Digital Library
Legal Services Corporation: Basic Facts and Current Status (open access)

Legal Services Corporation: Basic Facts and Current Status

None
Date: June 21, 2002
Creator: unknown
System: The UNT Digital Library
Final Report West Valley High-Level Waste Tank Lay-Up (open access)

Final Report West Valley High-Level Waste Tank Lay-Up

This report documents completion of Milestone A.4-1 "Issue Tank Lay-Up Strategies for WVDP Final Report," in Technical Task Plan RL3-WT21A, "Post-Retrieval and Pre-Closure HLW Tank Lay-Up." This task was a collaborative effort among Pacific Northwest National Laboratory, Jacobs Engineering Group Inc., and West Valley Nuclear Services. The primary objective of the overall task was to develop and evaluate conceptual strategies for preclosure lay-up of the two large high-level waste storage tanks at the West Valley Demonstration Project.
Date: June 21, 2002
Creator: Elmore, Monte R. & Henderson, Colin
System: The UNT Digital Library
Patterns and Controls of Temporal Variation in CO2 Sequestration and Loss in Arctic Ecosystems (open access)

Patterns and Controls of Temporal Variation in CO2 Sequestration and Loss in Arctic Ecosystems

Determine seasonal and interannual patterns of net ecosystem CO2 flux from wet coastal and moist tussock tundra.
Date: March 21, 2002
Creator: Oechel, Walter C.
System: The UNT Digital Library
Analysis and Measurement of Cross Talk in a Superconducting Cavity. (open access)

Analysis and Measurement of Cross Talk in a Superconducting Cavity.

A superconducting cavity used in a microwave gun requires that the launcher and the pickup probes be on the same side of the cavity, which causes direct coupling between them, or crosstalk. At room temperature, the crosstalk causes serious distortion of the RF response. This note addresses the phenomenon, the simulation results and the analysis, so that one can extract the desired information from the confusing signal.
Date: October 21, 2002
Creator: Zhao, Y.
System: The UNT Digital Library
Process Options Description for Steam Reforming Flowsheet Model of INEEL Tank Farm Waste (open access)

Process Options Description for Steam Reforming Flowsheet Model of INEEL Tank Farm Waste

Technical information is provided herein that is required for development of a steady-state process simulation of a baseline steam reforming treatment train for Tank Farm waste at the Idaho National Engineering and Environmental Laboratory (INEEL). This document supercedes INEEL/EXT-2001-173, produced in FY2001 to support simulation of the direct vitrification treatment train which was the previous process baseline. A process block flow diagram for steam reforming is provided, together with a list of unit operations which constitute the process. A detailed description of each unit operation is given which includes its purpose, principal phenomena present, expected pressure and temperature ranges, key chemical species in the inlet steam, and the proposed manner in which the unit operation is to be modeled in the steady state process simulation. Models for the unit operations may be mechanistic (based on first principles), empirical (based solely on pilot test data without extrapolation) , or by correlations (based on extrapolative or statistical schemes applied to pilot test data). Composition data for the expected process feed streams is provided.
Date: May 21, 2002
Creator: Taylor, D. D.; Barnes, C. M. & Nichols, T. T.
System: The UNT Digital Library
Design and Implementation of a CO2 Flood Utilizing Advanced Reservoir Characterization and Horizontal Injection Wells In a Shallow Shelf Carbonate Approaching Waterflood Depletion, Class II (open access)

Design and Implementation of a CO2 Flood Utilizing Advanced Reservoir Characterization and Horizontal Injection Wells In a Shallow Shelf Carbonate Approaching Waterflood Depletion, Class II

The principle objective of this project is to demonstrate the economic viability and widespread applicability of an innovative reservoir management and carbon dioxide (CO2) flood project development approach for improving CO2 flood project economics in shallow shelf carbonate (SSC) reservoirs.
Date: February 21, 2002
Creator: Czirr, K.L.; Gaddis, M.P. & Moshell, M.K.
System: The UNT Digital Library
AISI/DOE Technology Roadmap Program Hot Oxygen Injection Into The Blast Furnace (open access)

AISI/DOE Technology Roadmap Program Hot Oxygen Injection Into The Blast Furnace

Increased levels of blast furnace coal injection are needed to further lower coke requirements and provide more flexibility in furnace productivity. The direct injection of high temperature oxygen with coal in the blast furnace blowpipe and tuyere offers better coal dispersion at high local oxygen concentrations, optimizing the use of oxygen in the blast furnace. Based on pilot scale tests, coal injection can be increased by 75 pounds per ton of hot metal (lb/thm), yielding net savings of $0.84/tm. Potential productivity increases of 15 percent would yield another $1.95/thm. In this project, commercial-scale hot oxygen injection from a ''thermal nozzle'' system, patented by Praxair, Inc., has been developed, integrated into, and demonstrated on two tuyeres of the U.S. Steel Gary Works no. 6 blast furnace. The goals were to evaluate heat load on furnace components from hot oxygen injection, demonstrate a safe and reliable lance and flow control design, and qualitatively observe hot oxygen-coal interaction. All three goals have been successfully met. Heat load on the blowpipe is essentially unchanged with hot oxygen. Total heat load on the tuyere increases about 10% and heat load on the tuyere tip increases about 50%. Bosh temperatures remained within the usual operating range. …
Date: October 21, 2002
Creator: Riley, Michael F.
System: The UNT Digital Library
Remote Operation of the Fermilab/NICADD Photoinjector (open access)

Remote Operation of the Fermilab/NICADD Photoinjector

The recognition that a new major HEP facility must receive international support and that its execution would benefit from worldwide interaction from design through operation has given rise to the term Global Accelerator Network (GAN). A welcome consequence has been a more permissive attitude toward remote operation of existing facilities.For roughly thirty years, the computer has been the principal operator interface to the beam,and, through the development of the Internet, the operator can be literally anywhere. In this note, the authors describe their approach to enabling a sufficient degree of operation of the photoinjector from afar in order to carry out investigations in beam physics. The goal was to do so on a time scale of a few months and at minimal cost. At this writing, remote shifts are routinely scheduled involving DESY and LBL, limited in frequency only by the requests of the collaborators and by the need for time to interpret the data.
Date: March 21, 2002
Creator: al., Nikolai Barov et
System: The UNT Digital Library
A Feasibility Study for Recycling Used Automotive Oil Filters In A Blast Furnace (open access)

A Feasibility Study for Recycling Used Automotive Oil Filters In A Blast Furnace

This feasibility study has indicated that of the approximately 120,000 tons of steel available to be recycled from used oil filters (UOF's), a maximum blast furnace charge of 2% of the burden may be anticipated for short term use of a few months. The oil contained in the most readily processed UOF's being properly hot drained and crushed is approximately 12% to 14% by weight. This oil will be pyrolized at a rate of 98% resulting in additional fuel gas of 68% and a condensable hydrocarbon fraction of 30%, with the remaining 2% resulting as carbon being added into the burden. Based upon the writer's collected information and assessment, there appears to be no operational problems relating to the recycling of UOF's to the blast furnace. One steel plant in the US has been routinely charging UOF's at about 100 tons to 200 tons per month for many years. Extensive analysis and calculations appear to indicate no toxic consideration as a result of the pyrolysis of the small contained oil ( in the 'prepared' UOFs) within the blast furnace. However, a hydrocarbon condensate in the ''gasoline'' fraction will condense in the blast furnace scrubber water and may require additional processing …
Date: January 21, 2002
Creator: Smailer, Ralph M.; Dressel, Gregory L. & Hill, Jennifer Hsu
System: The UNT Digital Library
Development of a Silicon Based Electron Beam Transmission Window for Use in a KrF Excimer Laser System (open access)

Development of a Silicon Based Electron Beam Transmission Window for Use in a KrF Excimer Laser System

The Princeton Plasma Physics Laboratory (PPPL), in collaboration with the Naval Research Laboratory (NRL), is currently investigating various novel materials (single crystal silicon, <100>, <110> and <111>) for use as electron-beam transmission windows in a KrF excimer laser system. The primary function of the window is to isolate the active medium (excimer gas) from the excitation mechanism (field-emission diodes). Chosen window geometry must accommodate electron energy transfer greater than 80% (750 keV), while maintaining structural integrity during mechanical load (1.3 to 2.0 atm base pressure differential, approximate 0.5 atm cyclic pressure amplitude, 5 Hz repetition rate) and thermal load across the entire hibachi area (approximate 0.9 W {center_dot} cm superscript ''-2''). In addition, the window must be chemically resistant to attack by fluorine free-radicals (hydrofluoric acid, secondary). In accordance with these structural, functional, and operational parameters, a 22.4 mm square silicon prototype window, coated with 500 nm thin-film silicon nitride (Si{sub 3}N{sub 4}), has been fabricated. The window consists of 81 square panes with a thickness of 0.019 mm {+-} 0.001 mm. Stiffened (orthogonal) sections are 0.065 mm in width and 0.500 mm thick (approximate). Appended drawing (Figure 1) depicts the window configuration. Assessment of silicon (and silicon nitride) material …
Date: November 21, 2002
Creator: Gentile, C. A.; Fan, H. M.; Hartfield, J. W.; Hawryluk, R. J.; Hegeler, F.; Heitzenroeder, P. J. et al.
System: The UNT Digital Library
Modeling of Neoclassical Tearing Mode Stability for Generalized Toroidal Geometry (open access)

Modeling of Neoclassical Tearing Mode Stability for Generalized Toroidal Geometry

Neoclassical tearing modes (NTMs) can lead to disruption and loss of confinement. Previous analysis of these modes used large aspect ratio, low beta (plasma pressure/magnetic pressure) approximations to determine the effect of NTMs on tokamak plasmas. A more accurate tool is needed to predict the onset of these instabilities. As a follow-up to recent theoretical work, a code has been written which computes the tearing mode island growth rate for arbitrary tokamak geometry. It calls PEST-3 [A. Pletzer et al., J. Comput. Phys. 115, 530 (1994)] to compute delta prime, the resistive magnetohydrodynamic (MHD) matching parameter. The code also calls the FLUXGRID routines in NIMROD [A.H. Glasser et al., Plasma Phys. Controlled Fusion 41, A747 (1999)] for Dnc, DI and DR [C.C. Hegna, Phys. Plasmas 6, 3980 (1999); A.H. Glasser et al., Phys. Fluids 18, 875 (1975)], which are the bootstrap current driven term and the ideal and resistive interchange mode criterion, respectively. In addition to these components, the NIMROD routines calculate alphas-H, a new correction to the Pfirsch-Schlter term. Finite parallel transport effects were added and a National Spherical Torus Experiment (NSTX) [M. Ono et al., Nucl. Fusion 40, 557 (2000)] equilibrium was analyzed. Another program takes the output …
Date: August 21, 2002
Creator: Rosenberg, A. L.; Gates, D. A.; Pletzer, A.; Menard, J. E.; Kruger, S. E.; Hegna, C. C. et al.
System: The UNT Digital Library
WETTABILITY ALTERATION OF POROUS MEDIA TO GAS-WETTING FOR IMPROVING PRODUCTIVITY AND INJECTIVITY IN GAS-LIQUID FLOWS (open access)

WETTABILITY ALTERATION OF POROUS MEDIA TO GAS-WETTING FOR IMPROVING PRODUCTIVITY AND INJECTIVITY IN GAS-LIQUID FLOWS

The authors have performed a number of imbibition tests with the treated and untreated cores in nC{sub 10}, nC{sub 14}, and nC{sub 16} and a natural gas condensate liquid. Imbibition tests for nC{sub 14} and nC{sub 16} were also carried out at elevated temperatures of 100 C and 140 C. An experimental polymer synthesized for the purpose of this project was used in core treatment. Imbibition results are very promising and imply liquid condensate mobility enhancement in the treated core. They also performed flow tests to quantify the increase in well deliverability and to simulate flow under realistic field conditions. In the past we have performed extensive testing of wettability alteration in intermediate gas wetting for polymer FC759 at temperatures of 24 C and 90 C. The results were promising for the purpose of gas well deliverability improvement in gas condensate wells. We used FC759 to lower the surface energy of various rocks. The model fluids nC{sub 10}, and nC{sub 14} were used to represent condensate liquid, and air was used as the gas phase. A new (L-16349) polymer, which has been recently synthesized for the purpose of the project, was used in the work to be presented here. L-16349 …
Date: October 21, 2002
Creator: Firoozabadi, Abbas
System: The UNT Digital Library
Reservoir Characterization of Upper Devonian Gordon Sandstone, Jacksonburg, Stringtown Oil Field, Northwestern West Virginia (open access)

Reservoir Characterization of Upper Devonian Gordon Sandstone, Jacksonburg, Stringtown Oil Field, Northwestern West Virginia

This report gives results on use of a minipermeameter on cores to study very finescale trends in permeability, and use of neural networks to predict permeability in logged, uncored wells.
Date: May 21, 2002
Creator: Ameri, S.; Aminian, K.; Avary, K. L.; Bilgesu, H. I.; Hohn, M. E.; McDowell, R. R. et al.
System: The UNT Digital Library
Advanced High-Temperature Reactor for Production of Electricity and Hydrogen: Molten-Salt-Coolant, Graphite-Coated-Particle-Fuel (open access)

Advanced High-Temperature Reactor for Production of Electricity and Hydrogen: Molten-Salt-Coolant, Graphite-Coated-Particle-Fuel

The objective of the Advanced High-Temperature Reactor (AHTR) is to provide the very high temperatures necessary to enable low-cost (1) efficient thermochemical production of hydrogen and (2) efficient production of electricity. The proposed AHTR uses coated-particle graphite fuel similar to the fuel used in modular high-temperature gas-cooled reactors (MHTGRs), such as the General Atomics gas turbine-modular helium reactor (GT-MHR). However, unlike the MHTGRs, the AHTR uses a molten salt coolant with a pool configuration, similar to that of the PRISM liquid metal reactor. A multi-reheat helium Brayton (gas-turbine) cycle, with efficiencies >50%, is used to produce electricity. This approach (1) minimizes requirements for new technology development and (2) results in an advanced reactor concept that operates at essentially ambient pressures and at very high temperatures. The low-pressure molten-salt coolant, with its high heat capacity and natural circulation heat transfer capability, creates the potential for (1) exceptionally robust safety (including passive decay-heat removal) and (2) allows scaling to large reactor sizes [{approx}1000 Mw(e)] with passive safety systems to provide the potential for improved economics.
Date: February 21, 2002
Creator: Forsberg, Charles W.
System: The UNT Digital Library