Yucca Mountain Climate Technical Support Representative (open access)

Yucca Mountain Climate Technical Support Representative

The primary objective of Project Activity ORD-FY04-012, “Yucca Mountain Climate Technical Support Representative,” was to provide the Office of Civilian Radioactive Waste Management (OCRWM) with expertise on past, present, and future climate scenarios and to support the technical elements of the Yucca Mountain Project (YMP) climate program. The Climate Technical Support Representative was to explain, defend, and interpret the YMP climate program to the various audiences during Site Recommendation and License Application. This technical support representative was to support DOE management in the preparation and review of documents, and to participate in comment response for the Final Environmental Impact Statement, the Site Recommendation Hearings, the NRC Sufficiency Comments, and other forums as designated by DOE management. Because the activity was terminated 12 months early and experience a 27% reduction in budget, it was not possible to complete all components of the tasks as originally envisioned. Activities not completed include the qualification of climate datasets and the production of a qualified technical report. The following final report is an unqualified summary of the activities that were completed given the reduced time and funding.
Date: October 23, 2007
Creator: Sharpe, Saxon E.
System: The UNT Digital Library
SUPPORT OF MSA AND GS SHORT COURSES AND THE COMPANION REVIEWS VOLUMES (open access)

SUPPORT OF MSA AND GS SHORT COURSES AND THE COMPANION REVIEWS VOLUMES

Report on two short courses: [1] Fluid-fluid Equilibria in the Crust: Petrology - Geochemistry - Economic potential. August 16-17, 2007 preceding the Goldschmidt Conference in Cologne, Germany) and [2] Paleoaltimetry: Geochemical And Thermodynamic Approaches. October 26-27, 2007 (preceding the GSA Annual Meeting in Denver, Colorado)
Date: January 23, 2008
Creator: Speer, J Alex
System: The UNT Digital Library
National Atmospheric Release Advisory Center Internet Client (NARAC I Client) On-Line Help System Documentation (open access)

National Atmospheric Release Advisory Center Internet Client (NARAC I Client) On-Line Help System Documentation

None
Date: July 23, 2001
Creator: Belles, R.; Fischer, K.; Foster, K.; Foster, C.; Gash, J. & Stewart, J.
System: The UNT Digital Library
The Effect of Impurities on the Processing of Aluminum Alloys (open access)

The Effect of Impurities on the Processing of Aluminum Alloys

For this Aluminum Industry of the Future (IOF) project, the effect of impurities on the processing of aluminum alloys was systematically investigated. The work was carried out as a collaborative effort between the Pennsylvania State University and Oak Ridge National Laboratory. Industrial support was provided by ALCOA and ThermoCalc, Inc. The achievements described below were made. A method that combines first-principles calculation and calculation of phase diagrams (CALPHAD) was used to develop the multicomponent database Al-Ca-K-Li-Mg-Na. This method was extensively used in this project for the development of a thermodynamic database. The first-principles approach provided some thermodynamic property data that are not available in the open literature. These calculated results were used in the thermodynamic modeling as experimental data. Some of the thermodynamic property data are difficult, if not impossible, to measure. The method developed and used in this project allows the estimation of these data for thermodynamic database development. The multicomponent database Al-Ca-K-Li-Mg-Na was developed. Elements such as Ca, Li, Na, and K are impurities that strongly affect the formability and corrosion behavior of aluminum alloys. However, these impurity elements are not included in the commercial aluminum alloy database. The process of thermodynamic modeling began from Al-Na, Ca-Li, Li-Na, …
Date: April 23, 2007
Creator: Liu, Zi-Kui; Zhang, Shengjun; Han, Qingyou & Sikka, Vinod
System: The UNT Digital Library
Distillation Column Flooding Predictor (open access)

Distillation Column Flooding Predictor

The Flooding Predictor™ is a patented advanced control technology proven in research at the Separations Research Program, University of Texas at Austin, to increase distillation column throughput by over 6%, while also increasing energy efficiency by 10%. The research was conducted under a U. S. Department of Energy Cooperative Agreement awarded to George Dzyacky of 2ndpoint, LLC. The Flooding Predictor™ works by detecting the incipient flood point and controlling the column closer to its actual hydraulic limit than historical practices have allowed. Further, the technology uses existing column instrumentation, meaning no additional refining infrastructure is required. Refiners often push distillation columns to maximize throughput, improve separation, or simply to achieve day-to-day optimization. Attempting to achieve such operating objectives is a tricky undertaking that can result in flooding. Operators and advanced control strategies alike rely on the conventional use of delta-pressure instrumentation to approximate the column’s approach to flood. But column delta-pressure is more an inference of the column’s approach to flood than it is an actual measurement of it. As a consequence, delta pressure limits are established conservatively in order to operate in a regime where the column is never expected to flood. As a result, there is much “left …
Date: November 23, 2010
Creator: Dzyacky, George E.
System: The UNT Digital Library
Calibration of 3D Upper Mantle Structure in Eurasia Using Regional and Teleseismic Full Waveform Seismic Data (open access)

Calibration of 3D Upper Mantle Structure in Eurasia Using Regional and Teleseismic Full Waveform Seismic Data

Adequate path calibrations are crucial for improving the accuracy of seismic event location and origin time, size, and mechanism, as required for CTBT monitoring. There is considerable information on structure in broadband seismograms that is currently not fully utilized. The limitations have been largely theoretical. the development and application to solid earth problems of powerful numerical techniques, such as the Spectral Element Method (SEM), has opened a new era, and theoretically, it should be possible to compute the complete predicted wavefield accurately without any restrictions on the strength or spatial extent of heterogeneity. This approach requires considerable computational power, which is currently not fully reachable in practice. We propose an approach which relies on a cascade of increasingly accurate theoretical approximations for the computation of the seismic wavefield to develop a model of regional structure for the area of Eurasia located between longitudes of 30 and 150 degrees E, and latitudes of -10 to 60 degrees North. The selected area is particularly suitable for the purpose of this experiment, as it is highly heterogeneous, presenting a challenge for calibration purposes, but it is well surrounded by earthquake sources and, even though they are sparsely distributed, a significant number of high …
Date: April 23, 2005
Creator: Romanowicz, Barbara & Panning, Mark
System: The UNT Digital Library
Design intent tool: User guide (open access)

Design intent tool: User guide

This database tool provides a structured approach to recording design decisions that impact a facility's design intent in areas such as energy efficiency.Owners and de signers alike can plan, monitor and verify that a facility's design intent is being met during each stage of the design process. Additionally, the Tool gives commissioning agents, facility operators and future owners and renovators an understanding of how the building and its subsystems are intended to operate, and thus track and benchmark performance.
Date: August 23, 2002
Creator: Mills, Evan; Abell, Daniel; Bell, Geoffrey; Faludi, Jeremy; Greenberg, Steve; Hitchcock, Rob et al.
System: The UNT Digital Library
Materials and Process Design for High-Temperature Carburizing: Integrating Processing and Performance (open access)

Materials and Process Design for High-Temperature Carburizing: Integrating Processing and Performance

The objective of the project is to develop an integrated process for fast, high-temperature carburizing. The new process results in an order of magnitude reduction in cycle time compared to conventional carburizing and represents significant energy savings in addition to a corresponding reduction of scrap associated with distortion free carburizing steels.
Date: July 23, 2007
Creator: Apelian, D.
System: The UNT Digital Library