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Abandoned Mine Land Fund Reauthorization: Selected Issues (open access)

Abandoned Mine Land Fund Reauthorization: Selected Issues

This report provides a summary of the structure of the Abandon Mine Land (AML) program, distribution of funds, and discusses major proposals considered in the 108th Congress.
Date: April 30, 2004
Creator: Bamberger, Robert L.
System: The UNT Digital Library
Advanced Cuttings Transport Study: Final Technical Report (open access)

Advanced Cuttings Transport Study: Final Technical Report

The Advanced Cuttings Transport Study (ACTS) was a 5-year JIP project undertaken at the University of Tulsa (TU). The project was sponsored by the U.S. Department of Energy (DOE) and JIP member companies. The objectives of the project were: (1) to develop and construct a new research facility that would allow three-phase (gas, liquid and cuttings) flow experiments under ambient and EPET (elevated pressure and temperature) conditions, and at different angle of inclinations and drill pipe rotation speeds; (2) to conduct experiments and develop a data base for the industry and academia; and (3) to develop mechanistic models for optimization of drilling hydraulics and cuttings transport. This project consisted of research studies, flow loop construction and instrumentation development. Following a one-year period for basic flow loop construction, a proposal was submitted by TU to the DOE for a five-year project that was organized in such a manner as to provide a logical progression of research experiments as well as additions to the basic flow loop. The flow loop additions and improvements included: (1) elevated temperature capability; (2) two-phase (gas and liquid, foam etc.) capability; (3) cuttings injection and removal system; (4) drill pipe rotation system; and (5) drilling section elevation …
Date: September 30, 2004
Creator: Miska, Stefan; Reed, Troy & Kuru, Ergun
System: The UNT Digital Library
An Advanced Fracture Characterization and Well Path Navigation System for Effective Re-Development and Enhancement of Ultimate Recovery From the Complex Monterey Reservoir of South Ellwood Field, Offshore California, Quarterly Report: March - June 2004 (open access)

An Advanced Fracture Characterization and Well Path Navigation System for Effective Re-Development and Enhancement of Ultimate Recovery From the Complex Monterey Reservoir of South Ellwood Field, Offshore California, Quarterly Report: March - June 2004

Venoco Inc, intends to re-develop the Monterey Formation, a Class III basin reservoir, at South Ellwood Field, Offshore Santa Barbara, California. Well productivity in this field varies significantly. Cumulative Monterey production for individual wells has ranged from 260 STB to 8,700,000 STB. Productivity is primarily affected by how well the well path connects with the local fracture system and the degree of aquifer support. Cumulative oil recovery to date is a small percentage of the original oil in place. To embark upon successful re-development and to optimize reservoir management, Venoco intends to investigate, map and characterize field fracture patterns and the reservoir conduit system. State of the art borehole imaging technologies including FMI, dipole sonic and cross-well seismic, interference tests and production logs will be employed to characterize fractures and micro faults. These data along with the existing database will be used for construction of a novel geologic model of the fracture network. Development of an innovative fracture network reservoir simulator is proposed to monitor and manage the aquifer's role in pressure maintenance and water production. The new fracture simulation model will be used for both planning optimal paths for new wells and improving ultimate recovery. In the second phase …
Date: July 30, 2004
Creator: Horner, Steve
System: The UNT Digital Library
Advanced Hot Section Materials and Coatings Test Rig (open access)

Advanced Hot Section Materials and Coatings Test Rig

The Hyperbaric Advanced Hot Section Materials & Coating Test Rig program provides design and implementation of a laboratory rig capable of simulating the hot gas path conditions of coal-gas fired industrial gas turbine engines. The principal activities during this reporting period were the continuation of test section detail design and developing specifications for auxiliary systems and facilities.
Date: October 30, 2004
Creator: Davies, Dan
System: The UNT Digital Library
ADVANCED HOT SECTION MATERIALS AND COATINGS TEST RIG (open access)

ADVANCED HOT SECTION MATERIALS AND COATINGS TEST RIG

The Hyperbaric Advanced Hot Section Materials & Coating Test Rig program provides design and implementation of a laboratory rig capable of simulating the hot gas path conditions of coal-gas fired industrial gas turbine engines. The principal activity during this reporting period were the evaluation of syngas combustor concepts, the evaluation of test section concepts and the selection of the preferred rig configuration.
Date: April 30, 2004
Creator: Reome, Scott & Davies, Dan
System: The UNT Digital Library
Advanced Hydrogen Transport Membranes for Vision 21 Fossil Fuel Plants (open access)

Advanced Hydrogen Transport Membranes for Vision 21 Fossil Fuel Plants

The objective of this project is to develop an environmentally benign, inexpensive, and efficient method for separating hydrogen from gas mixtures produced during industrial processes, such as coal gasification. Currently, this project is focusing on four basic categories of dense membranes: (1) mixed conducting ceramic/ceramic composites, (2) mixed conducting ceramic/metal (cermet) composites, (3) cermets with hydrogen permeable metals, and (4) layered composites with hydrogen permeable alloys. The primary technical challenge in achieving the goals of this project will be to optimize membrane composition to enable practical hydrogen separation rates and chemical stability. Other key aspects of this developing technology include catalysis, ceramic processing methods, and separation unit design operating under high pressure. To achieve these technical goals, Eltron Research Inc. has organized a consortium consisting of CoorsTek, Sued Chemie, Inc. (SCI), Argonne National Laboratory (ANL), and NORAM. Hydrogen permeation rates in excess of 50 mL {center_dot} min{sup -1} {center_dot} cm{sup 2} at {approx}440 C were routinely achieved under less than optimal experimental conditions using a range of membrane compositions. Factors that limit the maximum permeation attainable were determined to be mass transport resistance of H{sub 2} to and from the membrane surface, as well as surface contamination. Mass transport resistance …
Date: January 30, 2004
Creator: Roark, Shane E.; Sammells, Anthony F.; Mackay, Richard; Morrison, Scott R.; Rolfe, Sara L.; Balachandran, U. et al.
System: The UNT Digital Library
Advanced, Low/Zero Emission Boiler Design and Operation (open access)

Advanced, Low/Zero Emission Boiler Design and Operation

This document reviews the work performed during the quarter April-June 2004. Task 1 (Site Preparation) had been completed 2003, along with three weeks of oxycombustion tests in Task 2 (experimental test performance) of the project. In current reporting period, the experimental testing has been completed: one additional week of tests has been performed to finalize the optimization of the combustion characteristics in O{sub 2}/CO{sub 2} environment ; two more days of testing were dedicated to mercury sampling in air-fired or O{sub 2}-fired conditions, and to characterization of heat transfer in O{sub 2} conditions vs. to air-blown conditions. Task 3 (Techno-Economic Study) has also been completed in current quarter: 250MWe, 500MWe and 1000MWe oxygen-fired PC unit have been simulated and quoted, and their performance and cost have been compared to same-capacity air-fired pulverized coal (PC) unit and IGCC. New and retrofit cases have been evaluated. The comparison has been completed in terms of capital cost, operating cost, cost of electricity and cost of CO{sub 2} avoided. The scope of task 4 (Conceptual Boiler Design) had been modified as per DOE request in previous quarter. Engineering calculations are currently in progress. Next steps include detail review of the experimental data collected during …
Date: June 30, 2004
Creator: Chatel-Pelage, Fabienne & Varagani, Rajani
System: The UNT Digital Library
ADVANCED MONITORING TO IMPROVE COMBUSTION TURBINE/COMBINED CYCLE CT/(CC) RELIABILITY, AVAILABILITY AND MAINTAINABILITY (RAM) (open access)

ADVANCED MONITORING TO IMPROVE COMBUSTION TURBINE/COMBINED CYCLE CT/(CC) RELIABILITY, AVAILABILITY AND MAINTAINABILITY (RAM)

Power generators are concerned with the maintenance costs associated with the advanced turbines that they are purchasing. Since these machines do not have fully established operation and maintenance (O&M) track records, power generators face financial risk due to uncertain future maintenance costs. This risk is of particular concern, as the electricity industry transitions to a competitive business environment in which unexpected O&M costs cannot be passed through to consumers. These concerns have accelerated the need for intelligent software-based diagnostic systems that can monitor the health of a combustion turbine in real time and provide valuable information on the machine's performance to its owner/operators. EPRI, Impact Technologies, Boyce Engineering, and Progress Energy have teamed to develop a suite of intelligent software tools integrated with a diagnostic monitoring platform that will, in real time, interpret data to assess the ''total health'' of combustion turbines. The Combustion Turbine Health Management System (CTHM) will consist of a series of dynamic link library (DLL) programs residing on a diagnostic monitoring platform that accepts turbine health data from existing monitoring instrumentation. The CTHM system will be a significant improvement over currently available techniques for turbine monitoring and diagnostics. CTHM will interpret sensor and instrument outputs, correlate …
Date: September 30, 2004
Creator: Angello, Leonard
System: The UNT Digital Library
Advanced Overfire Air system and design (open access)

Advanced Overfire Air system and design

The objective of the proposed project is to design, install and optimize a prototype advanced tangential OFA air system on two mass feed stoker boilers that can burn coal, biomass and a mixture of these fuels. The results will be used to develop a generalized methodology for retrofit designs and optimization of advanced OFA air systems. The advanced OFA system will reduce particulate and NOx emissions and improve overall efficiency by reducing carbon in the ash and excess oxygen. The advanced OFA will also provide capabilities for carrying full load and improved load following and transitional operations.
Date: July 30, 2004
Creator: berkau, Gene
System: The UNT Digital Library
Affirmative Action Revisited: A Legal History and Prospectus (open access)

Affirmative Action Revisited: A Legal History and Prospectus

Affirmative action remains a focal point of public debate as the result of legal and political developments at the federal, state, and local levels. This report discusses legislation related to affirmative action, as well as legal rulings on the topic and the federal government's role in first establishing and, later, attempting to curb affirmative action policies.
Date: January 30, 2004
Creator: Dale, Charles V.
System: The UNT Digital Library
Agricultural Conservation: USDA Should Improve Its Methods for Estimating Technical Assistance Costs (open access)

Agricultural Conservation: USDA Should Improve Its Methods for Estimating Technical Assistance Costs

A letter report issued by the Government Accountability Office with an abstract that begins "The U.S. Department of Agriculture's (USDA) Natural Resources Conservation Service (NRCS), working with state and local partners, provides landowners with technical assistance for multiple programs to plan and implement conservation measures that protect soil, water, and wildlife. For years, the Congress has been seeking detailed cost information on this assistance as it examined USDA budget requests. In part, because NRCS's financial system was not designed for estimating future budgets, in 1998 NRCS began developing additional cost data and a computer model for estimating future technical assistance costs. GAO was asked to (1) review NRCS's technical assistance cost estimates and (2) identify causes of any differences between the estimates and actual costs ultimately reported by NRCS."
Date: November 30, 2004
Creator: United States. Government Accountability Office.
System: The UNT Digital Library
ALS Performance Summary - Update (open access)

ALS Performance Summary - Update

High Energy Density Physics (HEDP) experiments play an important role in corroborating the improved physics codes that underlie LLNL's Stockpile Stewardship mission. Conducting these experiments, whether on the National Ignition Facility (NIF) or another national facility such as Omega, will require not only improvement in the diagnostics for measuring the experiment, but also detailed knowledge of the as-built target components and assemblies themselves. To assist in this effort, a defined set of well-known reference standards designed to represent a range of HEDP targets have been built and are being used to quantify the performance of different characterization techniques [Hibbard, et al. 2004]. Without the critical step of using reference standards for qualifying characterization tools there can be no verification of either commercial or internally-developed characterization techniques and thus an uncertainty in the input to the physics code models would exist.
Date: September 30, 2004
Creator: Waters, A M; Brown, W D & Martz, H. E., Jr.
System: The UNT Digital Library
The Alternative Minimum Tax for Individuals (open access)

The Alternative Minimum Tax for Individuals

This report provides a brief overview of the alternative minimum tax (AMT) for individuals, discusses the issues associated with the current system, and describes current legislation to amend the AMT. The report will be updated as legislative action warrants.
Date: April 30, 2004
Creator: Esenwein, Gregg A.
System: The UNT Digital Library
Alternative Transportation Fuels and Vehicles: Energy, Environment, and Development Issues (open access)

Alternative Transportation Fuels and Vehicles: Energy, Environment, and Development Issues

This report reviews several issues relating to alternative fuels and vehicles, mainly to combat dependence on petroleum imports and reduce greenhouse gas emissions. The report discusses the advantages and drawbacks of various alternative fuels and vehicles, as well as related legislation.
Date: June 30, 2004
Creator: Yacobucci, Brent D.
System: The UNT Digital Library
Ammonia-Free NOx Control System (open access)

Ammonia-Free NOx Control System

Research is being conducted under United States Department of Energy (DOE) Contract DEFC26-03NT41865 to develop a new technology to achieve very low levels of NOx emissions from pulverized coal fired boiler systems by employing a novel system level integration between the PC combustion process and the catalytic NOx reduction with CO present in the combustion flue gas. The combustor design and operating conditions will be optimized to achieve atypical flue gas conditions. This approach will not only suppress NOx generation during combustion but also further reduce NOx over a downstream catalytic reactor that does not require addition of an external reductant, such as ammonia. This report describes the work performed during the April 1 to June 30, 2004 time period.
Date: June 30, 2004
Creator: Fan, Zhen; Wu, Song & Herman, Richard G.
System: The UNT Digital Library
Ammonia-Free NOx Control System (open access)

Ammonia-Free NOx Control System

Research is being conducted under United States Department of Energy (DOE) Contract DEFC26-03NT41865 to develop a new technology to achieve very low levels of NOx emissions from pulverized coal fired boiler systems by employing a novel system level integration between the PC combustion process and the catalytic NOx reduction with CO present in the combustion flue gas. The combustor design and operating conditions will be optimized to achieve atypical flue gas conditions. This approach will not only suppress NOx generation during combustion but also further reduce NOx over a downstream catalytic reactor that does not require addition of an external reductant, such as ammonia. This report describes the work performed during the July 1 to September 30, 2004 time period.
Date: September 30, 2004
Creator: Wu, Song; Fan, Zhen; Seltzer, Andrew H. & Herman, Richard G.
System: The UNT Digital Library
Analysis of Potential Benefits and Costs of Adopting ASHRAE Standard 90.1-2001 as the Commercial Building Energy Code in Tennessee (open access)

Analysis of Potential Benefits and Costs of Adopting ASHRAE Standard 90.1-2001 as the Commercial Building Energy Code in Tennessee

ASHRAE Standard 90.1-2001 Energy Standard for Buildings except Low-Rise Residential Buildings (hereafter referred to as ASHRAE 90.1-2001 or 90.1-2001) was developed in an effort to set minimum requirements for the energy efficient design and construction of new commercial buildings. The State of Tennessee is considering adopting ASHRAE 90.1-2001 as its commercial building energy code. In an effort to evaluate whether or not this is an appropriate code for the state, the potential benefits and costs of adopting this standard are considered in this report. Both qualitative and quantitative benefits and costs are assessed. Energy and economic impacts are estimated using the Building Loads Analysis and System Thermodynamics (BLAST) simulations combined with a Life-Cycle Cost (LCC) approach to assess corresponding economic costs and benefits. Tennessee currently has ASHRAE Standard 90A-1980 as the statewide voluntary/recommended commercial energy standard; however, it is up to the local jurisdiction to adopt this code. Because 90A-1980 is the recommended standard, many of the requirements of ASHRAE 90A-1980 were used as a baseline for simulations.
Date: September 30, 2004
Creator: Cort, Katherine A.; Winiarski, David W.; Belzer, David B. & Richman, Eric E.
System: The UNT Digital Library
Analysis of Potential Benefits and Costs of Updating the Commercial Building Energy Code in North Dakota (open access)

Analysis of Potential Benefits and Costs of Updating the Commercial Building Energy Code in North Dakota

The state of North Dakota is considering updating its commercial building energy code. This report evaluates the potential costs and benefits to North Dakota residents from updating and requiring compliance with ASHRAE Standard 90.1-2001. Both qualitative and quantitative benefits and costs are assessed in the analysis. Energy and economic impacts are estimated using the Building Loads Analysis and System Thermodynamics (BLAST simulation combined with a Life-cycle Cost (LCC) approach to assess correspodning economic costs and benefits.
Date: April 30, 2004
Creator: Cort, Katherine A.; Belzer, David B.; Winiarski, David W. & Richman, Eric E.
System: The UNT Digital Library
Analysis of Potential Free-Rider Eligibility for a Proposed Commercial Building Lighting Tax Deduction (open access)

Analysis of Potential Free-Rider Eligibility for a Proposed Commercial Building Lighting Tax Deduction

The report provides estimates of the potential volume of ''free riders'', in terms of both eligible square footage and associated available tax deductions, in a proposed commercial building lighting tax amendment to the 2003 Energy Bill. Determination of the actual tax rate for businesses and how the amendment may impact tax revenue collected by the treasury is beyond the scope of this effort. Others, such as the Treasury itself, are best equipped to make their own estimates of the eventual impact based on the total deductions available to taxable entities.
Date: September 30, 2004
Creator: Winiarski, David W.; Richman, Eric E. & Biyani, Rahul K.
System: The UNT Digital Library
An Analysis of Price Determination and Markups in the Air-Conditioning and Heating Equipment Industry (open access)

An Analysis of Price Determination and Markups in the Air-Conditioning and Heating Equipment Industry

In this report we calculate the change in final consumer prices due to minimum efficiency standards, focusing on a standard economic model of the air-conditioning and heating equipment (ACHE) wholesale industry. The model examines the relationship between the marginal cost to distribute and sell equipment and the final consumer price in this industry. The model predicts that the impact of a standard on the final consumer price is conditioned by its impact on marginal distribution costs. For example, if a standard raises the marginal cost to distribute and sell equipment a small amount, the model predicts that the standard will raise the final consumer price a small amount as well. Statistical analysis suggest that standards do not increase the amount of labor needed to distribute equipment the same employees needed to sell lower efficiency equipment can sell high efficiency equipment. Labor is a large component of the total marginal cost to distribute and sell air-conditioning and heating equipment. We infer from this that standards have a relatively small impact on ACHE marginal distribution and sale costs. Thus, our model predicts that a standard will have a relatively small impact on final ACHE consumer prices. Our statistical analysis of U.S. Census …
Date: January 30, 2004
Creator: Dale, Larry; Millstein, Dev; Coughlin, Katie; Van Buskirk, Robert; Rosenquist, Gregory; Lekov, Alex et al.
System: The UNT Digital Library
Appropriations for FY2004: Energy and Water Development (open access)

Appropriations for FY2004: Energy and Water Development

This report is a guide to one of the 13 regular appropriations bills that Congress considers each year, related to energy and water development. It is designed to supplement the information provided by the House and Senate Appropriations Subcommittees on Energy and Water Development. It summarizes the status of the bill, its scope, major issues, funding levels, and related congressional activity, and is updated as events warrant.
Date: January 30, 2004
Creator: Behrens, Carl & Humphries, Marc
System: The UNT Digital Library
Appropriations for FY2005: Foreign Operations, Export Financing, and Related Programs (open access)

Appropriations for FY2005: Foreign Operations, Export Financing, and Related Programs

This report is a guide to one of the 13 regular appropriations bills that Congress considers each year, related to foreign operations, export financing and other programs. It is designed to supplement the information provided by the House and Senate Appropriations Subcommittees on Foreign Operations. It summarizes the status of the bill, its scope, major issues, funding levels, and related congressional activity, and is updated as events warrant.
Date: November 30, 2004
Creator: Nowels, Larry
System: The UNT Digital Library
Architect of the Capitol: Status Report on Implementation of Management Review Recommendations (open access)

Architect of the Capitol: Status Report on Implementation of Management Review Recommendations

A letter report issued by the General Accounting Office with an abstract that begins "The Office of the Architect of the Capitol (AOC) plays an important role in supporting the effective functioning of Congress and its neighboring institutions. In January 2003, GAO conducted a comprehensive management review of AOC's operations and made 35 recommendations to help AOC establish a strategic management and accountability framework, improve its management infrastructure and internal control, and address longstanding concerns. In February 2003, the Conference Report mandated GAO to monitor progress being made on the implementation of the 35 management review recommendations."
Date: January 30, 2004
Creator: United States. General Accounting Office.
System: The UNT Digital Library
ASSESSMENT OF RADIONUCLIDE RELEASE FROM INTACT STRUCTURES BACKFILLED WITH CONTAMINATED CONCRETE AT THE YANKEE NUCLEAR POWER STATION. (open access)

ASSESSMENT OF RADIONUCLIDE RELEASE FROM INTACT STRUCTURES BACKFILLED WITH CONTAMINATED CONCRETE AT THE YANKEE NUCLEAR POWER STATION.

This calculation determines the release of residual radioactivity (including H-3, C-14, Co-60, Ni-63, Sr-90, and Cs-137), from subsurface structures filled with concrete debris at the Yankee Nuclear Power Station. Analyses were performed to assess the rate of release from the source of contamination and the resulting dose in the groundwater pathway. Two mechanisms were considered, diffusive release from the concrete structures (walls and floors) that remain intact and sorption onto concrete backfill placed within these structures. RESRAD was used to calculate the predicted maximum dose assuming a unit loading of 1 pCi/g on the intact structures. To the extent possible, the same assumptions in the soil DCGL calculations performed for Yankee Atomic were used in the calculation. However, modifications to some input parameter values were needed to represent the geometry of the subsurface facilities, flow through these facilities, and releases from the backfill and intact structures. Input parameters specific to these calculations included the leach rate, disposal geometry, pumping rate, porosity and bulk density. The dose results for a unit loading of 1 pCi/g on intact structures showed that Sr-90 had the highest dose (3.67E-02 mrem/yr).
Date: September 30, 2004
Creator: SULLIVAN, T.
System: The UNT Digital Library