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Multiparameter Fiber Optic Sensing System for Monitoring Enhanced Geothermal Systems (open access)

Multiparameter Fiber Optic Sensing System for Monitoring Enhanced Geothermal Systems

The goal of this project was to design, fabricate and test an optical fiber cable which supports multiple sensing modalities for measurements in the harsh environment of enhanced geothermal systems. To accomplish this task, optical fiber was tested at both high temperatures and strains for mechanical integrity, and in the presence of hydrogen for resistance to darkening. Both single mode (SM) and multimode (MM) commercially available optical fiber were identified and selected for the cable based on the results of these tests. The cable was designed and fabricated using a tube-within-tube construction containing two MM fibers and one SM fiber, and without supporting gel that is not suitable for high temperature environments. Commercial fiber optic sensing instruments using Raman DTS (distributed temperature sensing), Brillouin DTSS (distributed temperature and strain sensing), and Raleigh COTDR (coherent optical time domain reflectometry) were selected for field testing. A microelectromechanical systems (MEMS) pressure sensor was designed, fabricated, packaged, and calibrated for high pressure measurements at high temperatures and spliced to the cable. A fiber Bragg grating (FBG) temperature sensor was also spliced to the cable. A geothermal well was selected and its temperature and pressure were logged. The cable was then deployed in the well …
Date: December 4, 2014
Creator: Challener, William A.
Object Type: Report
System: The UNT Digital Library
Final Technical Report (open access)

Final Technical Report

The project, �Capital Investment to Fund Equipment Purchases and Facility Modifications to Create a Sustainable Future for EnergyXchange� served to replace landfill gas energy with alternative energy resources, primarily solar and wood waste. This is the final project closeout report.
Date: November 13, 2014
Creator: Gilbert, Chris
Object Type: Report
System: The UNT Digital Library
Nonproliferation and Knowledge Security Course (open access)

Nonproliferation and Knowledge Security Course

N/A
Date: October 1, 2014
Creator: D., Verdugo & U., Rohatgi
Object Type: Article
System: The UNT Digital Library
Virginia Offshore Wind Cost Reduction Through Innovation Study (VOWCRIS) (Poster) (open access)

Virginia Offshore Wind Cost Reduction Through Innovation Study (VOWCRIS) (Poster)

The VOWCRIS project is an integrated systems approach to the feasibility-level design, performance, and cost-of-energy estimate for a notional 600-megawatt offshore wind project using site characteristics that apply to the Wind Energy Areas of Virginia, Maryland and North Carolina.
Date: October 1, 2014
Creator: Maples, B.; Campbell, J. & Arora, D.
Object Type: Article
System: The UNT Digital Library
Project to Develop and Demonstrate an Advanced Low Temperature Heat Recovery Absorption Chiller Module at a Distributed Data Center (open access)

Project to Develop and Demonstrate an Advanced Low Temperature Heat Recovery Absorption Chiller Module at a Distributed Data Center

None
Date: September 30, 2014
Creator: Sweetser, Richard
Object Type: Report
System: The UNT Digital Library
The Mesaba Energy Project: Clean Coal Power Initiative, Round 2 (open access)

The Mesaba Energy Project: Clean Coal Power Initiative, Round 2

The Mesaba Energy Project is a nominal 600 MW integrated gasification combine cycle power project located in Northeastern Minnesota. It was selected to receive financial assistance pursuant to code of federal regulations (?CFR?) 10 CFR 600 through a competitive solicitation under Round 2 of the Department of Energy?s Clean Coal Power Initiative, which had two stated goals: (1) to demonstrate advanced coal-based technologies that can be commercialized at electric utility scale, and (2) to accelerate the likelihood of deploying demonstrated technologies for widespread commercial use in the electric power sector. The Project was selected in 2004 to receive a total of $36 million. The DOE portion that was equally cost shared in Budget Period 1 amounted to about $22.5 million. Budget Period 1 activities focused on the Project Definition Phase and included: project development, preliminary engineering, environmental permitting, regulatory approvals and financing to reach financial close and start of construction. The Project is based on ConocoPhillips? E-Gas? Technology and is designed to be fuel flexible with the ability to process sub-bituminous coal, a blend of sub-bituminous coal and petroleum coke and Illinois # 6 bituminous coal. Major objectives include the establishment of a reference plant design for Integrated Gasification Combined …
Date: July 31, 2014
Creator: Stone, Richard; Gray, Gordon & Evans, Robert
Object Type: Report
System: The UNT Digital Library
Design Analysis and Manufacturing Studies for ITER In-Vessel Coils (open access)

Design Analysis and Manufacturing Studies for ITER In-Vessel Coils

ITER is incorporating two types of In Vessel Coils (IVCs): ELM Coils to mitigate Edge Localized Modes and VS Coils to provide Vertical Stabilization of the plasma. Strong coupling with the plasma is required so that the ELM and VS Coils can meet their performance requirements. Accordingly, the IVCs are in close proximity to the plasma, mounted just behind the Blanket Shield Modules. This location results in a radiation and temperature environment that is severe necessitating new solutions for material selection as well as challenging analysis and design solutions. Fitting the coil systems in between the blanket shield modules and the vacuum vessel leads to difficult integration with diagnostic cabling and cooling water manifolds.
Date: July 1, 2014
Creator: Kalish, M.; Heitzenroeder, P.; Neumeyer, C.; Titus, P.; Zhai, Y.; Zatz, I. et al.
Object Type: Article
System: The UNT Digital Library
Trace Simulation of Bwr Anticipated Transient Without Scram Leading to Emergency Depressurization (open access)

Trace Simulation of Bwr Anticipated Transient Without Scram Leading to Emergency Depressurization

N/A
Date: June 15, 2014
Creator: Cheng, L. Y.; J., Beak; Cuadra, A.; Aronson, A.; Diamond, D. & Yarsky, P. (with the NRC)
Object Type: Article
System: The UNT Digital Library
The Low-Frequency Radio Catalog of Flat Spectrum Sources (open access)

The Low-Frequency Radio Catalog of Flat Spectrum Sources

None
Date: May 1, 2014
Creator: Massaro, F.; Giroletti, M.; D'Abrusco, R.; Masetti, N.; Paggi, A.; Cowperthwaite, Philip S. et al.
Object Type: Article
System: The UNT Digital Library
Evaluation of Tank 241-T-111 Level Data and In-Tank Video Inspection (open access)

Evaluation of Tank 241-T-111 Level Data and In-Tank Video Inspection

This document summarizes the status of tank T-111 as of January 1, 2014 and estimates a leak rate and post-1994 leak volume for the tank.
Date: March 17, 2014
Creator: Schofield, John S. & Feero, Amie J.
Object Type: Report
System: The UNT Digital Library
Transient Spectroscopic Investigations of Intermediates Involved in CO2 Reduction Under Supercritical CO2 Conditions (open access)

Transient Spectroscopic Investigations of Intermediates Involved in CO2 Reduction Under Supercritical CO2 Conditions

N/A
Date: March 16, 2014
Creator: C., Grills D.; Kawanami, H.; Ishizaka, T. & Chatterjee, M.
Object Type: Article
System: The UNT Digital Library
Beam Loading by Distributed Injection of Electrons in a Plasma Wakefield Accelerator (open access)

Beam Loading by Distributed Injection of Electrons in a Plasma Wakefield Accelerator

None
Date: March 14, 2014
Creator: Vafaei-Najafabadi, N.; Marsh, K. A.; Clayton, C. E.; An, W.; Mori, W. B.; Joshi, C. et al.
Object Type: Article
System: The UNT Digital Library
Charmonium and Charmonium-Like States with BaBar (open access)

Charmonium and Charmonium-Like States with BaBar

This report describes Charmonium and Charmonium-Like States with BaBar.
Date: March 14, 2014
Creator: Guido, Elisa
Object Type: Article
System: The UNT Digital Library
Final Technical Report - Large Deviation Methods for the Analysis and Design of Monte Carlo Schemes in Physics and Chemistry - DE-SC0002413 (open access)

Final Technical Report - Large Deviation Methods for the Analysis and Design of Monte Carlo Schemes in Physics and Chemistry - DE-SC0002413

This proposal is concerned with applications of Monte Carlo to problems in physics and chemistry where rare events degrade the performance of standard Monte Carlo. One class of problems is concerned with computation of various aspects of the equilibrium behavior of some Markov process via time averages. The problem to be overcome is that rare events interfere with the efficient sampling of all relevant parts of phase space. A second class concerns sampling transitions between two or more stable attractors. Here, rare events do not interfere with the sampling of all relevant parts of phase space, but make Monte Carlo inefficient because of the very large number of samples required to obtain variance comparable to the quantity estimated. The project uses large deviation methods for the mathematical analyses of various Monte Carlo techniques, and in particular for algorithmic analysis and design. This is done in the context of relevant application areas, mainly from chemistry and biology.
Date: March 14, 2014
Creator: Dupuis, Paul
Object Type: Report
System: The UNT Digital Library
Locally Enhanced Conductivity due to the Tetragonal Domain Structure in LaAlO3/SrTiO3 Heterointerfaces (open access)

Locally Enhanced Conductivity due to the Tetragonal Domain Structure in LaAlO3/SrTiO3 Heterointerfaces

None
Date: March 13, 2014
Creator: Kalisky, Beena; Spanton, Eric M.; Noad, Hilary; Kirtley, John R.; Nowack, Katja C.; Bell, Christopher et al.
Object Type: Article
System: The UNT Digital Library
Pixel Area Variations in Sensors: A Novel Framework for Predicting Pixel Fidelity and Distortion in Flat Field Response (open access)

Pixel Area Variations in Sensors: A Novel Framework for Predicting Pixel Fidelity and Distortion in Flat Field Response

None
Date: March 13, 2014
Creator: Rasmussen, Andrew
Object Type: Article
System: The UNT Digital Library
Final Report for Project DE-FC02-06ER25755 [Pmodels2] (open access)

Final Report for Project DE-FC02-06ER25755 [Pmodels2]

In this report, we describe the research accomplished by the OSU team under the Pmodels2 project. The team has worked on various angles: designing high performance MPI implementations on modern networking technologies (Mellanox InfiniBand (including the new ConnectX2 architecture and Quad Data Rate), QLogic InfiniPath, the emerging 10GigE/iWARP and RDMA over Converged Enhanced Ethernet (RoCE) and Obsidian IB-WAN), studying MPI scalability issues for multi-thousand node clusters using XRC transport, scalable job start-up, dynamic process management support, efficient one-sided communication, protocol offloading and designing scalable collective communication libraries for emerging multi-core architectures. New designs conforming to the Argonne’s Nemesis interface have also been carried out. All of these above solutions have been integrated into the open-source MVAPICH/MVAPICH2 software. This software is currently being used by more than 2,100 organizations worldwide (in 71 countries). As of January ’14, more than 200,000 downloads have taken place from the OSU Web site. In addition, many InfiniBand vendors, server vendors, system integrators and Linux distributors have been incorporating MVAPICH/MVAPICH2 into their software stacks and distributing it. Several InfiniBand systems using MVAPICH/MVAPICH2 have obtained positions in the TOP500 ranking of supercomputers in the world. The latest November ’13 ranking include the following systems: 7th ranked Stampede …
Date: March 12, 2014
Creator: Panda, Dhabaleswar & Sadayappan, P
Object Type: Report
System: The UNT Digital Library
Multiscale Design of Advanced Materials based on Hybrid Ab Initio and Quasicontinuum Methods (open access)

Multiscale Design of Advanced Materials based on Hybrid Ab Initio and Quasicontinuum Methods

This project united researchers from mathematics, chemistry, computer science, and engineering for the development of new multiscale methods for the design of materials. Our approach was highly interdisciplinary, but it had two unifying themes: first, we utilized modern mathematical ideas about change-of-scale and state-of-the-art numerical analysis to develop computational methods and codes to solve real multiscale problems of DOE interest; and, second, we took very seriously the need for quantum mechanics-based atomistic forces, and based our methods on fast solvers of chemically accurate methods.
Date: March 12, 2014
Creator: Luskin, Mitchell
Object Type: Text
System: The UNT Digital Library
Annual Report: Unconventional Fossil Energy Resource Program (30 September 2013) (open access)

Annual Report: Unconventional Fossil Energy Resource Program (30 September 2013)

Yee Soong, Technical Coordinator, George Guthrie, Focus Area Lead, UFER Annual Report, NETL-TRS-UFER-2013, NETL Technical Report Series, U.S. Department of Energy, National Energy Technology Laboratory, Pittsburgh, PA, 2013, p 14.
Date: March 11, 2014
Creator: Soong, Yee & Guthrie, George
Object Type: Report
System: The UNT Digital Library
Evidence for the decay B0 -> omega omega and search for B0 -> omega phi (open access)

Evidence for the decay B0 -> omega omega and search for B0 -> omega phi

None
Date: March 10, 2014
Creator: Lees, J. P.; Poireau, V.; Tisserand, V.; /Annecy, LAPP; Grauges, E.; /Barcelona U., ECM et al.
Object Type: Article
System: The UNT Digital Library
Observations of Continuum Depression in Warm Dense Matter with X-Ray Thomson scattering (open access)

Observations of Continuum Depression in Warm Dense Matter with X-Ray Thomson scattering

None
Date: March 10, 2014
Creator: Fletcher, L. B.; Kritcher, A. L.; Pak, A.; Ma, T.; Doppner, T.; Fortmann, C. et al.
Object Type: Article
System: The UNT Digital Library
2013 SRNL LDRD Annual Report (open access)

2013 SRNL LDRD Annual Report

This report demonstrates the execution of our LDRD program within the objectives and guidelines outlined by the Department of Energy (DOE) through the DOE Order 413.2b. The projects described within the report align purposefully with SRNL’s strategic vision and provide great value to the DOE. The diversity exhibited in the research and development projects underscores the DOE Office of Environmental Management (DOE-EM) mission and enhances that mission by developing the technical capabilities and human capital necessary to support future DOE-EM national needs. As a multiprogram national laboratory, SRNL is applying those capabilities to achieve tangible results for the nation in National Security, Environmental Stewardship, Clean Energy and Nuclear Materials Management.
Date: March 7, 2014
Creator: McWhorter, S.
Object Type: Report
System: The UNT Digital Library
FEL Oscillator for EUV Lithography (open access)

FEL Oscillator for EUV Lithography

Report on a study to develop radiation sources for extreme ultraviolet lithography (EUVL) by using a free-electron laser (FEL) with a short-period undulator and a relatively small beam energy.
Date: March 6, 2014
Creator: Stupakov, G. & Zolotorev, M. S.
Object Type: Article
System: The UNT Digital Library
Annual Report: Carbon Capture Simulation Initiative (CCSI) (30 September 2013) (open access)

Annual Report: Carbon Capture Simulation Initiative (CCSI) (30 September 2013)

The Carbon Capture Simulation Initiative (CCSI) is a partnership among national laboratories, industry and academic institutions that is developing and deploying state-of-the-art computational modeling and simulation tools to accelerate the commercialization of carbon capture technologies from discovery to development, demonstration, and ultimately the widespread deployment to hundreds of power plants. The CCSI Toolset will provide end users in industry with a comprehensive, integrated suite of scientifically validated models, with uncertainty quantification (UQ), optimization, risk analysis and decision making capabilities. The CCSI Toolset incorporates commercial and open-source software currently in use by industry and is also developing new software tools as necessary to fill technology gaps identified during execution of the project. Ultimately, the CCSI Toolset will (1) enable promising concepts to be more quickly identified through rapid computational screening of devices and processes; (2) reduce the time to design and troubleshoot new devices and processes; (3) quantify the technical risk in taking technology from laboratory-scale to commercial-scale; and (4) stabilize deployment costs more quickly by replacing some of the physical operational tests with virtual power plant simulations. CCSI is led by the National Energy Technology Laboratory (NETL) and leverages the Department of Energy (DOE) national laboratories’ core strengths in modeling …
Date: March 5, 2014
Creator: Miller, David C.; Syamlal, Madhava; Cottrell, Roger; Kress, Joel D.; Sundaresan, S.; Sun, Xin et al.
Object Type: Report
System: The UNT Digital Library