Development of Superior Sorbents for Separation of CO2 from Flue Gas at a Wide Temperature range during Coal Combustion (open access)

Development of Superior Sorbents for Separation of CO2 from Flue Gas at a Wide Temperature range during Coal Combustion

A number basic sorbents based on CaO were synthesized, characterized with novel techniques and tested for sorption of CO{sub 2} and selected gas mixtures simulating flue gas from coal fired boilers. Our studies resulted in highly promising sorbents which demonstrated zero affinity for N{sub 2}, O{sub 2}, SO{sub 2}, and NO very low affinity for water, ultrahigh CO{sub 2} sorption capacities, and rapid sorption characteristics, CO{sub 2} sorption at a very wide temperature range, durability, and low synthesis cost. One of the 'key' characteristics of the proposed materials is the fact that we can control very accurately their basicity (optimum number of basic sites of the appropriate strength) which allows for the selective chemisorption of CO{sub 2} at a wide range of temperatures. These unique characteristics of this family of sorbents offer high promise for development of advanced industrial sorbents for the effective CO{sub 2} removal.
Date: September 17, 2002
Creator: Smirniotis, Panagiotis
Object Type: Report
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
Object Type: Report
System: The UNT Digital Library
Long-Term Stewardship Program Science and Technology Requirements (open access)

Long-Term Stewardship Program Science and Technology Requirements

Many of the United States’ hazardous and radioactively contaminated waste sites will not be sufficiently remediated to allow unrestricted land use because funding and technology limitations preclude cleanup to pristine conditions. This means that after cleanup is completed, the Department of Energy will have long-term stewardship responsibilities to monitor and safeguard more than 100 sites that still contain residual contamination. Long-term stewardship encompasses all physical and institutional controls, institutions, information, and other mechanisms required to protect human health and the environment from the hazards remaining. The Department of Energy Long-Term Stewardship National Program is in the early stages of development, so considerable planning is still required to identify all the specific roles and responsibilities, policies, and activities needed over the next few years to support the program’s mission. The Idaho National Engineering and Environmental Laboratory was tasked with leading the development of Science and Technology within the Long-Term Stewardship National Program. As part of that role, a task was undertaken to identify the existing science and technology related requirements, identify gaps and conflicts that exist, and make recommendations to the Department of Energy for future requirements related to science and technology requirements for long-term stewardship. This work is summarized in …
Date: September 1, 2002
Creator: McDonald, Joan
Object Type: Report
System: The UNT Digital Library
Updating the Nrc Guidance for Human Factors Engineering Reviews. (open access)

Updating the Nrc Guidance for Human Factors Engineering Reviews.

None
Date: September 15, 2002
Creator: O Hara, J. M.; Brown, W. S.; Higgins, J. C.; Persensky, J. J.; Lewis, P. M. & Bongarra, J.
Object Type: Article
System: The UNT Digital Library
Analysis of Potential Benefits and Costs of Updating the Commercial Building Energy Code in Iowa (open access)

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

The state of Iowa is considering adpoting ASHRAE 90.1-1999 as its commercial building energy code. In an effort to evaluate whether or not this is an appropraite code for the state, the potential benefits and costs of adopting this standard are considered. Both qualitative and quantitative benefits are assessed. The energy simulation and economic results suggest that adopting ASHRAE 90.1-1999 would provide postitive net benefits to the state relative to the building and design requirements currently in place.
Date: September 7, 2002
Creator: Cort, Katherine A.; Belzer, David B.; Richman, Eric E. & Winiarski, David W.
Object Type: Report
System: The UNT Digital Library
Hanford Site National Environmental Policy Act (NEPA) Characterization (open access)

Hanford Site National Environmental Policy Act (NEPA) Characterization

This document describes the U.S. Department of Energy's (DOE) Hanford Site environment. It is updated each year and is intended to provide a consistent description of the Hanford Site environment for the many National Environmental Policy Act (NEPA) documents being prepared by DOE contractors. No statements of significance or environmental consequences are provided. This year's report is the thirteenth revision of the original document published in 1988 and is (until replaced by the fourteenth revision) the only version that is relevant for use in the preparation of Hanford NEPA, State Environmental Policy Act (SEPA), and Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) documents. The two chapters included in this document (Chapters 4 and 6) are numbered to correspond to the chapters where such information is typically presented in environmental impact statements (Weiss) and other Hanford Site NEPA or CERCLA documentation. Chapter 4.0 (Affected Environment) describes Hanford Site climate and meteorology, geology, hydrology, ecology, cultural, archaeological, and historical resources, socioeconomics, occupational safety, and noise. Chapter 6.0 (Statutory and Regulatory Requirements) describes federal and state laws and regulations, DOE directives and permits, and presidential executive orders that are applicable to the NEPA documents prepared for Hanford Site activities.
Date: September 1, 2002
Creator: Neitzel, Duane A.; Bunn, Amoret L.; Duncan, Joanne P.; Eschbach, Tara O.; Fowler, Richard A.; Fritz, Brad G. et al.
Object Type: Report
System: The UNT Digital Library
OIT Wireless Telemetry for Industrial Applications (open access)

OIT Wireless Telemetry for Industrial Applications

The need for advanced wireless technology has been identified in the National Research Council publication (1) ''Manufacturing Process Controls for the Industries of the Future as a Critical Technology for the Future''. The deployment challenges to be overcome in order for wireless to be a viable option include: (1) eliminating interference (assuring reliable communications); (2) easing the deployment of intelligent, wireless sensors; (3) developing reliable networks (robust architectures); (4) developing remote power (long-lasting and reliable); and (5) developing standardized communication protocols. This project demonstrated the feasibility of robust wireless sensor networks that could meet these requirements for the harsh environments common to the DOE/OIT Industries of the Future. It resulted in a wireless test bed that was demonstrated in a paper mill and a steel plant. The test bed illustrated key protocols and components that would be required in a real-life, wireless network. The technologies for low power connectivity developed and demonstrated at the plant eased fears that the radios would interfere with existing control equipment. The same direct sequence, spread spectrum (DSSS) technology that helped assure the reliability of the connection also demonstrated that wireless communication was feasible in these plants without boosting the transmitted power to dangerous levels. …
Date: September 3, 2002
Creator: Manges, WW
Object Type: Report
System: The UNT Digital Library
ELECTROCHEMICAL CORROSION STUDY FOR TANK 241-AY-102 SLUDGE (open access)

ELECTROCHEMICAL CORROSION STUDY FOR TANK 241-AY-102 SLUDGE

The report describes the analyses performed on core samples from the sludge region of the waste in Tank 241-AY-102 to determine the electrochemical corrosion potential.
Date: September 24, 2002
Creator: JB, DUNCAN
Object Type: Report
System: The UNT Digital Library
Power Systems Development Facility Gasification Test Run TC09 (open access)

Power Systems Development Facility Gasification Test Run TC09

This report discusses Test Campaign TC09 of the Kellogg Brown & Root, Inc. (KBR) Transport Gasifier train with a Siemens Westinghouse Power Corporation (Siemens Westinghouse) particle filter system at the Power Systems Development Facility (PSDF) located in Wilsonville, Alabama. The Transport Gasifier is an advanced circulating fluidized-bed gasifier designed to operate as either a combustor or a gasifier in air- or oxygen-blown mode of operation using a particulate control device (PCD). The Transport Gasifier was operated as a pressurized gasifier during TC09 in air- and oxygen-blown modes. Test Run TC09 was started on September 3, 2002, and completed on September 26, 2002. Both gasifier and PCD operations were stable during the test run, with a stable baseline pressure drop. The oxygen feed supply system worked well and the transition from air to oxygen was smooth. The gasifier temperature varied between 1,725 and 1,825 F at pressures from 125 to 270 psig. The gasifier operates at lower pressure during oxygen-blown mode due to the supply pressure of the oxygen system. In TC09, 414 hours of solid circulation and over 300 hours of coal feed were attained with almost 80 hours of pure oxygen feed.
Date: September 30, 2002
Creator: Southern Company Services
Object Type: Report
System: The UNT Digital Library
Case Studies on the Effectiveness of State Financial Incentives for Renewable Energy (open access)

Case Studies on the Effectiveness of State Financial Incentives for Renewable Energy

The North Carolina Solar Center at NC State University, in collaboration with the National Renewable Energy Laboratory, examined 10 state financial-incentive programs in six states using a case-study approach in order to clarify the key factors-both internal and external to the program-that influence their effectiveness at stimulating deployment of renewable energy technologies. While existing information resources such as the National Database of State Incentives for Renewable Energy (DSIRE, www.dsireusa.org) have documented what incentive programs are available, the effectiveness of such programs is not well understood. Understanding the impact of current financial incentives on the deployment of renewables and the factors that influence their effectiveness is critical to a variety of stakeholders, particularly in states considering new incentives or interested in improving or discarding existing ones.
Date: September 1, 2002
Creator: Gouchoe, S.; Everette, V. & Haynes, R.
Object Type: Report
System: The UNT Digital Library
On-Line Microbial Whole Effluent Toxicity Monitoring for Industrial Wastewater (open access)

On-Line Microbial Whole Effluent Toxicity Monitoring for Industrial Wastewater

In this study a respirometer is tested for its ability to act as an early upset warning device and whole effluent toxicity monitor for industrial discharge. Industrial discharge water quality is commonly evaluated by comparing measured chemical concentrations to target values or regulatory limits established by governmental agencies. Unless the regulatory values are based upon empirical data, the actual effect of the discharge on aquatic systems is unknown. At the same time assessing the environmental toxicology of wastewater discharges is complicated by synergistic relationships among chemical constituents producing greater total toxicity. For example, metals may be more toxic in waters with low total hardness or more soluble at lower pH. An alternative approach that we are investigating is whole effluent toxicity testing. This study investigates the measurement of whole effluent toxicity through an on-line respirometer that measures toxicity to microorganisms comprising activated sludge. In this approach the oxygen uptake rate is monitored and used as an indicator of microbial activity or health. This study investigates the use of an online whole effluent toxicity testing system to provide early upset warning and the consistency of measured response to low pH. Repeated exposure of the microorganisms to low pH results in reduced …
Date: September 17, 2002
Creator: Mathews, S; Hoppes, W; Mascetti, M & Campbell, C G
Object Type: Article
System: The UNT Digital Library
Comparison Between Keyhole Weld Model and Laser Welding Experiments (open access)

Comparison Between Keyhole Weld Model and Laser Welding Experiments

A series of laser welds were performed using a high-power diode-pumped continuous-wave Nd:YAG laser welder. In a previous study, the experimental results of those welds were examined, and the effects that changes in incident power and various welding parameters had on weld geometry were investigated. In this report, the fusion zones of the laser welds are compared with those predicted from a laser keyhole weld simulation model for stainless steels (304L and 21-6-9), vanadium, and tantalum. The calculated keyhole depths for the vanadium and 304L stainless steel samples fit the experimental data to within acceptable error, demonstrating the predictive power of numerical simulation for welds in these two materials. Calculations for the tantalum and 21-6-9 stainless steel were a poorer match to the experimental values. Accuracy in materials properties proved extremely important in predicting weld behavior, as minor changes in certain properties had a significant effect on calculated keyhole depth. For each of the materials tested, the correlation between simulated and experimental keyhole depths deviated as the laser power was increased. Using the model as a simulation tool, we conclude that the optical absorptivity of the material is the most influential factor in determining the keyhole depth. Future work will …
Date: September 23, 2002
Creator: Wood, B C; Palmer, T A & Elmer, J W
Object Type: Report
System: The UNT Digital Library
Final ROI Report - Technology Transfer of Waste-Reducing Groundwater Sampling Systems (open access)

Final ROI Report - Technology Transfer of Waste-Reducing Groundwater Sampling Systems

This report presents the findings of a U.S. DOE Environmental Management technology transfer initiative of waste-reducing ground water sampling systems between Savannah River Site (SRS) and Lawrence Livermore National Laboratory (LLNL) which occurred during fiscal years 2001 and 2002. The report describes the collaboration between the two sites, the deployment of the Savannah River Site Purge Water Management System at LLNL, the changes made to that system for use at LLNL, and documents the return-on-investment derived from the system's use at LLNL as well as other benefits generated through this inter-laboratory collaboration. An evaluation of the deployment of the LLNL EasyPump sampling technology at SRS will be covered in a separate report from SRS.
Date: September 30, 2002
Creator: Noyes, Charles; Howard, Greg; Bishop, Dorothy; Tuckfield, Cary & Hiergesell, Robert
Object Type: Report
System: The UNT Digital Library
Hanford Site Environmental Report for Calendar Year 2001 (open access)

Hanford Site Environmental Report for Calendar Year 2001

This report summarizes environmental information for the Hanford Site in Washington State for the calendar year 2001.
Date: September 2, 2002
Creator: Poston, Ted M.; Hanf, Robert W.; Dirkes, Roger L. & Morasch, Launa F.
Object Type: Report
System: The UNT Digital Library
Influence of Environmental Variables on the Susceptibility of Alloy 22 to Environmentally Assisted Cracking (open access)

Influence of Environmental Variables on the Susceptibility of Alloy 22 to Environmentally Assisted Cracking

In its current design, the high-level nuclear waste containers include an external layer of Alloy 22 (NO6022). This material was selected to provide long-term corrosion resistance since if water enters in contact with the containers, they may undergo corrosion. The model for the degradation of the containers includes three modes of corrosion, namely general corrosion, localized corrosion and environmentally assisted cracking (EAC). The objective of the current research was to quantify the susceptibility of Alloy 22 to EAC in several environmental conditions with varying solution composition, temperature and electrochemical potential. The susceptibility to EAC was evaluated using constant deformation (deflection) U-bend specimens in both the wrought and welded conditions. Results show that after more than five years exposure in the vapor and liquid phases of alkaline (PH {approx} 10) and acidic (pH {approx} 3) multi-ionic environments at 60 C and 90 C, Alloy 22 was free from EAC.
Date: September 26, 2002
Creator: Fix, D. V.; Estill, J. C.; King, K. J.; Day, S. D. & Rebak, R. B.
Object Type: Article
System: The UNT Digital Library
NEW RESULTS FROM THE MUON G - 2 EXPERIMENT. (open access)

NEW RESULTS FROM THE MUON G - 2 EXPERIMENT.

The Muon g-2 collaboration has measured the anomalous magnetic g value, a = (g-2)/2, of the positive muon with an unprecedented uncertainty of O.7parts per million. The result a{sub {mu}{sup +}}(expt) = 11 659 204(7)(5) x 10{sup -10}, based on data collected in the year 2000 at Brookhaven National Laboratory, is in good agreement with the preceding data on a{sub {mu}{sup +}} and a{sub {mu}{sup -}}. The measurement tests standard model theory, which at the level of the current experimental uncertainty involves quantum electrodynamics, quantum chromodynamics, and electroweak interaction in a significant way.
Date: September 9, 2002
Creator: SICHTERMANN,E. P. BENNETT,G. W. BOUSQUET,B. BROWN,H. N. BUNCE,G. CAREY,R. M. ET ALMUON G - 2 COLLABORATION
Object Type: Article
System: The UNT Digital Library
Qualification Tests for the New Air Sampling System at the 296-Z-1 Stack (open access)

Qualification Tests for the New Air Sampling System at the 296-Z-1 Stack

This report documents tests performed by Pacific Northwest National Laboratory to verify that the new air monitoring system for the 296-Z-1 ventilation exhaust stack meets the applicable regulatory criteria regarding the placement of the air sampling probe, sample transport, and stack flow measurement accuracy. These criteria ensure that the contaminants in the stack are well mixed with the airflow at the location of the probe so that the collected sample represents the whole. The sequence of tests addresses the acceptability of the flow angle relative to the probe uniformity of air velocity and gaseous and particle tracers in the cross section of the stack delivery of the sample from the sampler nozzle to the collection filter. The tests conducted on the air monitoring system demonstrated that the location for the air-sampling probe meets all performance criteria for air sampling systems at nuclear facilities. The performance criterion for particle transport was also met. All tests were successful, and all acceptance criteria were met.
Date: September 19, 2002
Creator: Glissmeyer, John A.; Maughan, A D. & Jarvis, Timothy T.
Object Type: Report
System: The UNT Digital Library
RHIC PC CNI Polarimeter:Status and Performance From the First Collider Run. (open access)

RHIC PC CNI Polarimeter:Status and Performance From the First Collider Run.

Polarimeters using the proton carbon elastic scattering process in Coulomb Nuclear Interference (CNI) region were installed in two RHIC rings. Polarization measurements were successfully carried out with the high energy polarized proton beams for the first polarized pp collision run. The physics principles, performance, and polarization measurements are presented.
Date: September 9, 2002
Creator: Jinnouchi, O.; Bland, L. C.; Bravar, A.; Bunce, G.; Cadman, R.; Deshpande, A. D. et al.
Object Type: Article
System: The UNT Digital Library
A Catalog of Vadose Zone Hydraulic Properties for the Hanford Site (open access)

A Catalog of Vadose Zone Hydraulic Properties for the Hanford Site

To predict contaminant release to the groundwater, it is necessary to understand the hydraulic properties of the material between the release point and the water table. Measurements of the hydraulic properties of the Hanford unsaturated sediments that buffer the water table are available from many areas of the site; however, the documentation is not well cataloged nor is it easily accessible. The purpose of this report is to identify what data is available for characterization of the unsaturated hydraulic properties at Hanford and Where these data can be found.
Date: September 30, 2002
Creator: Freeman, Eugene J.; Khaleel, Raziuddin & Heller, Paula R.
Object Type: Report
System: The UNT Digital Library
Failure Modeling of Titanium-6Al-4V and 2024-T3 Aluminum with the Johnson-Cook Material Model (open access)

Failure Modeling of Titanium-6Al-4V and 2024-T3 Aluminum with the Johnson-Cook Material Model

A validated Johnson-Cook model could be employed to perform simulations that conform to FAA standards for evaluating aircraft and engine designs for airworthiness and containment considerations. A previous LLNL report [1] described the motivation for using the Johnson-Cook material model in simulations involving engine containment and the effect of uncontained engine debris on aircraft structures. In that report, experimental studies of the deformation and failure behavior of Ti-6Al-4V and 2024-T3 aluminum at high strain rates and large strains were conducted. The report also describes the generation of material constants for the Johnson-Cook strength model. This report describes the determination and validation of parameters for Ti-6Al-4V and 2024-T3 aluminum that can be used in the failure portion of the Johnson-Cook material.
Date: September 16, 2002
Creator: Kay, G.
Object Type: Report
System: The UNT Digital Library
THE RELATIVISTIC STERN GERLACH INTERACTION AS A TOOL FOR ATTAINING THE SPIN SEPARATION. (open access)

THE RELATIVISTIC STERN GERLACH INTERACTION AS A TOOL FOR ATTAINING THE SPIN SEPARATION.

The relativistic Stem-Gerlach interaction is here considered as a tool for obtaining the spin state separation of an unpolarized (anti)proton beam circulating in a ring. Drawbacks, such as spin precessions within the TE rf cavity, spurious kicks due to the transverse electric field and, worst of all, filamentation in the longitudinal phase plane are analyzed. Possible remedies are proposed and their feasibility is discussed.
Date: September 9, 2002
Creator: CAMERON,P. CONTE,M. LUCCIO,A. U. MACKAY,W. W. PALAZZI,M. PUSTERLA,M.
Object Type: Article
System: The UNT Digital Library
Liquid Nitrogen Subcooler ofr Calorimeters LN2 Supply (open access)

Liquid Nitrogen Subcooler ofr Calorimeters LN2 Supply

This note provides calculations of heat load and coil sizing for a LN2 subcooler which will be installed in the liquid nitrogen line going from Dewar 42 to the. Liquid argon calorimeters. This subcooler must improve LN2 quality and facilitate LAr pressure regulation. The system is described in Engineering note 3740.510-EN-382. This note contains the calculations of heat loads/pressure drops of the liquid Nitrogen supply line going from the Dewar 42 to the liquid Argon calorimeters, and also the sizing of existing LN2 subcooler located in the V-tube. The note is used as a reference. The state of Nitrogen {at} point 6 - ECS entrance (according to 3740.510-EN-382) is used in the calculations. The quality of liquid x = 0.0066 with the use of existing 75 W LN2 subcooler. It has been determined that we need 29.3 W of additional subcooling in order to obtain. 100% liquid at this point with the mass flow of 25 g/s. Keeping in mind the possible error in heat transfer calculations, a 300W subcooler will be installed to replace the old 75 W subcooler. In order to achieve an acceptable conclusion, an assumption of a fully developed boundary layer was made. The hot fluid …
Date: September 16, 2002
Creator: Sarychev, Michael
Object Type: Report
System: The UNT Digital Library
Proceedings of the 24th Seismic Research Review: Nuclear Explosion Monitoring: Innovation and Integration (open access)

Proceedings of the 24th Seismic Research Review: Nuclear Explosion Monitoring: Innovation and Integration

These proceedings contain papers prepared for the 24th Seismic Research Review: Nuclear Explosion Monitoring: Innovation and Integration, held 17-19 September, 2002 in Ponte Vedra Beach, Florida. These papers represent the combined research related to ground-based nuclear explosion monitoring funded by the National Nuclear Security Administration (NNSA), Defense Threat Reduction Agency (DTRA), and other invited sponsors. The scientific objectives of the research are to improve the United States capability to detect, locate, and identify nuclear explosions. The purpose of the meeting is to provide the sponsoring agencies, as well as potential users, an opportunity to review research accomplished during the preceding year and to discuss areas of investigation for the coming year. For the researchers, it provides a forum for the exchange of scientific information toward achieving program goals, and an opportunity to discuss results and future plans. Paper topics include: seismic regionalization and calibration; detection and location of sources; wave propagation from source to receiver; the nature of seismic sources, including mining practices; hydroacoustic, infrasound, and radionuclide methods; on-site inspection; and data processing.
Date: September 17, 2002
Creator: Warren, N. Jill
Object Type: Article
System: The UNT Digital Library
D-Zero Collison Hall Ventilation Measurements (open access)

D-Zero Collison Hall Ventilation Measurements

This engineering note documents air velocity measurements taken on September 5, 2002 for the D-Zero collision hall. These measurements were done after changes were made to the building dampers, DM-1, DM-2, and DM-14 such that the collision hall would be at a slight positive pressure. Measurements were made by Pete Simon and Mike Sarychev. They systematically took velocity measurements across the duct cross sections. Their raw measurements are included.
Date: September 5, 2002
Creator: Rucinski, Russell A.
Object Type: Report
System: The UNT Digital Library