Search for a Heavy Neutral Particle Decaying Into an Electron and a Muon Using 1 Fb^-1 of ATLAS Data (open access)

Search for a Heavy Neutral Particle Decaying Into an Electron and a Muon Using 1 Fb^-1 of ATLAS Data

None
Date: May 30, 2013
Creator: Aad, Georges
Object Type: Article
System: The UNT Digital Library
Expanded Content Envelope For The Model 9977 Packaging (open access)

Expanded Content Envelope For The Model 9977 Packaging

An Addendum was written to the Model 9977 Safety Analysis Report for Packaging adding a new content consisting of DOE-STD-3013 stabilized plutonium dioxide materials to the authorized Model 9977 contents. The new Plutonium Oxide Content (PuO{sub 2}) Envelope will support the Department of Energy shipment of materials between Los Alamos National Laboratory and Savannah River Site facilities. The new content extended the current content envelope boundaries for radioactive material mass and for decay heat load and required a revision to the 9977 Certificate of Compliance prior to shipment. The Addendum documented how the new contents/configurations do not compromise the safety basis presented in the 9977 SARP Revision 2. The changes from the certified package baseline and the changes to the package required to safely transport this material is discussed.
Date: July 30, 2013
Creator: Abramczyk, G. A.; Loftin, B. M.; Nathan, S. J. & Bellamy, J. S.
Object Type: Article
System: The UNT Digital Library
Characterization of Oxy-combustion Impacts in Existing Coal-fired Boilers (open access)

Characterization of Oxy-combustion Impacts in Existing Coal-fired Boilers

Reaction Engineering International (REI) managed a team of experts from University of Utah, Siemens Energy, Praxair, Vattenfall AB, Sandia National Laboratories, Brigham Young University (BYU) and Corrosion Management Ltd. to perform multi-scale experiments, coupled with mechanism development, process modeling and CFD modeling, for both applied and fundamental investigations. The primary objective of this program was to acquire data and develop tools to characterize and predict impacts of CO{sub 2} flue gas recycle and burner feed design on flame characteristics (burnout, NO{sub x}, SO{sub x}, mercury and fine particle emissions, heat transfer) and operational concerns (fouling, slagging and corrosion) inherent in the retrofit of existing coal-fired boilers for oxy-coal combustion. Experimental work was conducted at Sandia National Laboratories’ Entrained Flow Reactor, the University of Utah Industrial Combustion Research Facility, and Brigham Young University. Process modeling and computational fluid dynamics (CFD) modeling was performed at REI. Successful completion of the project objectives resulted in the following key deliverables: 1) Multi-scale test data from 0.1 kW bench-scale, 100 kW and 200 kW laboratory-scale, and 1 MW semi-industrial scale combustors that describe differences in flame characteristics, fouling, slagging and corrosion for coal combustion under air-firing and oxygen-firing conditions, including sensitivity to oxy-burner design and …
Date: September 30, 2013
Creator: Adams, Bradley; Davis, Kevin; Senior, Constance; Shim, Hong Shim; Otten, Brydger; Fry, Andrew et al.
Object Type: Report
System: The UNT Digital Library
An Analysis of Wind Power Development in the Town of Hull, MA (open access)

An Analysis of Wind Power Development in the Town of Hull, MA

Over the past three decades the Town of Hull, MA has solidified its place in U.S. wind energy history through its leadership in community-based generation. This is illustrated by its commissioning of the first commercial-scale wind turbine on the Atlantic coastline, the first suburban-sited turbine in the continental United States, pursuit of community-based offshore wind, and its push toward creating an energy independent community. The town's history and demographics are briefly outlined, followed by experience in projects to provide wind power, including pre-construction and feasibility efforts, financial aspects, and market/industry factors.
Date: June 30, 2013
Creator: Adams, Christopher
Object Type: Report
System: The UNT Digital Library
An Analysis of Wind Power Development in the Town of Hull, MA, Appendix 2: LaCapra Financial Study (open access)

An Analysis of Wind Power Development in the Town of Hull, MA, Appendix 2: LaCapra Financial Study

The financial analysis and summary results presented in this document represent a first cut at an economic assessment of the proposed Hull Offshore Wind Project. Wind turbine price increases have outpaced the materials and labor price pressures faced by nonrenewable power plant developers due to increased demands on a limited pool of turbine manufacturers and offshore installation companies. Moreover, given the size of the proposed offshore facility, it may be difficult to contract with turbine manufacturers and/or foundation companies given the size and scope of competing worldwide demand. The results described in this report assume that such conditions will not significantly impact the prices that will have to be received from the output of the project; rather, the project size may require as a prerequisite that Hull be able to piggyback on other offshore efforts. The financial estimates provided here necessarily feature a range due to uncertainty in a number of project assumptions as well as overall uncertainty in offshore wind costs. Nevertheless, taken together, the analysis provides a ballpark revenue requirement of approximately $157/MWh for the municipal financing option, with higher estimates possible assuming escalation in costs to levels higher than assumed here.
Date: June 30, 2013
Creator: Adams, Christopher
Object Type: Text
System: The UNT Digital Library
An Analysis of Wind Power Development in the Town of Hull, MA_Appendix 1_MEPA Certificate (open access)

An Analysis of Wind Power Development in the Town of Hull, MA_Appendix 1_MEPA Certificate

This appendix consists of the CERTIFICATE OF THE SECRETARY OF ENERGY AND ENVIRONMENTAL AFFAIRS ON THE ENVIRONMENTAL NOTIFICATION FORM.
Date: June 30, 2013
Creator: Adams, Christopher
Object Type: Report
System: The UNT Digital Library
An Analysis of Wind Power Development in the Town of Hull, MA_Appendix 3_LaCapra Update 2012 (open access)

An Analysis of Wind Power Development in the Town of Hull, MA_Appendix 3_LaCapra Update 2012

This presentation covers an objective, market-based, review of the financial assessment of building offshore facilities of 15 or 25 MW.
Date: June 30, 2013
Creator: Adams, Christopher
Object Type: Report
System: The UNT Digital Library
An Analysis of Wind Power Development in the Town of Hull, MA_Appendix 4_Geophysical Survey Report (open access)

An Analysis of Wind Power Development in the Town of Hull, MA_Appendix 4_Geophysical Survey Report

CR Environmental, Inc. (CR) was contracted by GZA GeoEnvironmental, Inc. (GZA) to perform hydrographic and geophysical surveys of an approximately 3.35 square mile area off the eastern shore of Hull, Massachusetts. Survey components included: • Single-beam bathymetry; • 100-kHz and 500-kHz side scan sonar; • Magnetometry; and • Low to mid-frequency sub-bottom profiling.
Date: June 30, 2013
Creator: Adams, Christopher
Object Type: Report
System: The UNT Digital Library
A Beam Driven Plasma-Wakefield Linear Collider: From Higgs Factory to Multi-TeV (open access)

A Beam Driven Plasma-Wakefield Linear Collider: From Higgs Factory to Multi-TeV

None
Date: September 30, 2013
Creator: Adli, E.; Delahaye, J. P.; Gessner, S. J.; Hogan, M. J.; Raubenheimer, T.; An, W. et al.
Object Type: Article
System: The UNT Digital Library
Advanced CO{sub 2} Capture Technology for Low Rank Coal IGCC System (open access)

Advanced CO{sub 2} Capture Technology for Low Rank Coal IGCC System

The overall objective of the project is to demonstrate the technical and economic viability of a new Integrated Gasification Combined Cycle (IGCC) power plant designed to efficiently process low rank coals. The plant uses an integrated CO{sub 2} scrubber/Water Gas Shift (WGS) catalyst to capture over90 percent capture of the CO{sub 2} emissions, while providing a significantly lower cost of electricity (COE) than a similar plant with conventional cold gas cleanup system based on SelexolTM technology and 90 percent carbon capture. TDA’s system uses a high temperature physical adsorbent capable of removing CO{sub 2} above the dew point of the synthesis gas and a commercial WGS catalyst that can effectively convert CO in The overall objective of the project is to demonstrate the technical and economic viability of a new Integrated Gasification Combined Cycle (IGCC) power plant designed to efficiently process low rank coals. The plant uses an integrated CO{sub 2} scrubber/Water Gas Shift (WGS) catalyst to capture over90 percent capture of the CO{sub 2} emissions, while providing a significantly lower cost of electricity (COE) than a similar plant with conventional cold gas cleanup system based on SelexolTM technology and 90 percent carbon capture. TDA’s system uses a high temperature …
Date: September 30, 2013
Creator: Alptekin, Gokhan
Object Type: Report
System: The UNT Digital Library
Rugby Hohlraum Campaign on the National Ignition (open access)

Rugby Hohlraum Campaign on the National Ignition

None
Date: August 30, 2013
Creator: Amendt, P
Object Type: Article
System: The UNT Digital Library
Wetland Water Cooling Partnership: The Use of Constructed Wetlands to Enhance Thermoelectric Power Plant Cooling and Mitigate the Demand of Surface Water Use (open access)

Wetland Water Cooling Partnership: The Use of Constructed Wetlands to Enhance Thermoelectric Power Plant Cooling and Mitigate the Demand of Surface Water Use

Through the Phase I study segment of contract #DE-NT0006644 with the U.S. Department of Energy’s National Energy Technology Laboratory, Applied Ecological Services, Inc. and Sterling Energy Services, LLC (the AES/SES Team) explored the use of constructed wetlands to help address stresses on surface water and groundwater resources from thermoelectric power plant cooling and makeup water requirements. The project objectives were crafted to explore and develop implementable water conservation and cooling strategies using constructed wetlands (not existing, naturally occurring wetlands), with the goal of determining if this strategy has the potential to reduce surface water and groundwater withdrawals of thermoelectric power plants throughout the country. Our team’s exploratory work has documented what appears to be a significant and practical potential for augmenting power plant cooling water resources for makeup supply at many, but not all, thermoelectric power plant sites. The intent is to help alleviate stress on existing surface water and groundwater resources through harvesting, storing, polishing and beneficially re-using critical water resources. Through literature review, development of conceptual created wetland plans, and STELLA-based modeling, the AES/SES team has developed heat and water balances for conventional thermoelectric power plants to evaluate wetland size requirements, water use, and comparative cooling technology costs. …
Date: September 30, 2013
Creator: Apfelbaum, Steven; Duvall, Kenneth; Nelson, Theresa; Mensing, Douglas; Bengtson, Harlan; Eppich, John et al.
Object Type: Report
System: The UNT Digital Library
Automatic Transformation of MPI Programs to Asynchronous, Graph-Driven Form (open access)

Automatic Transformation of MPI Programs to Asynchronous, Graph-Driven Form

The goals of this project are to develop new, scalable, high-fidelity algorithms for atomic-level simulations and program transformations that automatically restructure existing applications, enabling them to scale forward to Petascale systems and beyond. The techniques enable legacy MPI application code to exploit greater parallelism though increased latency hiding and improved workload assignment. The techniques were successfully demonstrated on high-end scalable systems located at DOE laboratories. Besides the automatic MPI program transformations efforts, the project also developed several new scalable algorithms for ab-initio molecular dynamics, including new massively parallel algorithms for hybrid DFT and new parallel in time algorithms for molecular dynamics and ab-initio molecular dynamics. These algorithms were shown to scale to very large number of cores, and they were designed to work in the latency hiding framework developed in this project. The effectiveness of the developments was enhanced by the direct application to real grand challenge simulation problems covering a wide range of technologically important applications, time scales and accuracies. These included the simulation of the electronic structure of mineral/fluid interfaces, the very accurate simulation of chemical reactions in microsolvated environments, and the simulation of chemical behavior in very large enzyme reactions.
Date: April 30, 2013
Creator: Baden, Scott B.; Weare, John H. & Bylaska, Eric J.
Object Type: Report
System: The UNT Digital Library
Status Report on the Development of Research Campaigns (open access)

Status Report on the Development of Research Campaigns

Research campaigns were conceived as a means to focus EMSL research on specific scientific questions. Campaign will help fulfill the Environmental Molecular Sciences Laboratory (EMSL) strategic vision to develop and integrate, for use by the scientific community, world leading capabilities that transform understanding in the environmental molecular sciences and accelerate discoveries relevant to the Department of Energy’s (DOE’s) missions. Campaigns are multi-institutional multi-disciplinary projects with scope beyond those of normal EMSL user projects. The goal of research campaigns is to have EMSL scientists and users team on the projects in the effort to accelerate progress and increase impact in specific scientific areas by focusing user research, EMSL resources, and expertise in those areas. This report will give a history and update on the progress of those campaigns.
Date: June 30, 2013
Creator: Baer, Donald R.; Baker, Scott E.; Washton, Nancy M. & Linggi, Bryan E.
Object Type: Report
System: The UNT Digital Library
XNDL: METIS Partitioning Process (open access)

XNDL: METIS Partitioning Process

None
Date: April 30, 2013
Creator: Banks, L. E.; Barnes, P. D. & Jefferson, D. R.
Object Type: Report
System: The UNT Digital Library
The Benefits of Stress: Resolution of the Lifshitz Singularity (open access)

The Benefits of Stress: Resolution of the Lifshitz Singularity

None
Date: October 30, 2013
Creator: Bao, Ning; Dong, Xi; Harrison, Sarah & Silverstein, Eva
Object Type: Article
System: The UNT Digital Library
241-AZ Tank Farm Construction Extent of Condition Review for Tank Integrity (open access)

241-AZ Tank Farm Construction Extent of Condition Review for Tank Integrity

This report provides the results of an extent of condition construction history review for tanks 241-AZ-101 and 241-AZ-102. The construction history of the 241-AZ tank farm has been reviewed to identify issues similar to those experienced during tank AY-102 construction. Those issues and others impacting integrity are discussed based on information found in available construction records, using tank AY-102 as the comparison benchmark. In the 241-AZ tank farm, the second DST farm constructed, both refractory quality and tank and liner fabrication were improved.
Date: July 30, 2013
Creator: Barnes, Travis J.; Boomer, Kayle D.; Gunter, Jason R. & Venetz, Theodore J.
Object Type: Report
System: The UNT Digital Library
Solar Powered Radioactive Air Monitoring Stations (open access)

Solar Powered Radioactive Air Monitoring Stations

Environmental monitoring of ambient air for radioactive material is required as stipulated in the PNNL Site radioactive air license. Sampling ambient air at identified preferred locations could not be initially accomplished because utilities were not readily available. Therefore, solar powered environmental monitoring systems were considered as a possible option. PNNL purchased two 24-V DC solar powered environmental monitoring systems which consisted of solar panels, battery banks, and sampling units. During an approximate four month performance evaluation period, the solar stations operated satisfactorily at an on-site test location. They were subsequently relocated to their preferred locations in June 2012 where they continue to function adequately under the conditions found in Richland, Washington.
Date: October 30, 2013
Creator: Barnett, J. M.; Bisping, Lynn E. & Gervais, Todd L.
Object Type: Report
System: The UNT Digital Library
Pilot Scale Water Gas Shift - Membrane Device for Hydrogen from Coal (open access)

Pilot Scale Water Gas Shift - Membrane Device for Hydrogen from Coal

The objectives of the project were to build pilot scale hydrogen separation systems for use in a gasification product stream. This device would demonstrate fabrication and manufacturing techniques for producing commercially ready facilities. The design was a 2 lb/day hydrogen device which included composite hydrogen separation membranes, a water gas shift monolith catalyst, and stainless steel structural components. Synkera Technologies was to prepare hydrogen separation membranes with metallic rims, and to adjust the alloy composition in their membranes to a palladium-gold composition which is sulfur resistant. Chart was to confirm their brazing technology for bonding the metallic rims of the composite membranes to their structural components and design and build the 2 lbs/day device incorporating membranes and catalysts. WRI prepared the catalysts and completed the testing of the membranes and devices on coal derived syngas. The reactor incorporated eighteen 2'' by 7'' composite palladium alloy membranes. These membranes were assembled with three stacks of three paired membranes. Initial vacuum testing and visual inspection indicated that some membranes were cracked, either in transportation or in testing. During replacement of the failed membranes, while pulling a vacuum on the back side of the membranes, folds were formed in the flexible composite membranes. …
Date: June 30, 2013
Creator: Barton, Tom
Object Type: Report
System: The UNT Digital Library
A 5kV, 3MHz Solid-State Modulator Based on the DSRD Switch for an Ultra-fast Beam Kicker (open access)

A 5kV, 3MHz Solid-State Modulator Based on the DSRD Switch for an Ultra-fast Beam Kicker

None
Date: October 30, 2013
Creator: Benwell, A.; Burkhart, C.; Krasnykh, A.; Tang, T. & Kardo-Sysoev, A.
Object Type: Article
System: The UNT Digital Library
Gaseous Sulfate Solubility in Glass: Experimental Method (open access)

Gaseous Sulfate Solubility in Glass: Experimental Method

Sulfate solubility in glass is a key parameter in many commercial glasses and nuclear waste glasses. This report summarizes key publications specific to sulfate solubility experimental methods and the underlying physical chemistry calculations. The published methods and experimental data are used to verify the calculations in this report and are expanded to a range of current technical interest. The calculations and experimental methods described in this report will guide several experiments on sulfate solubility and saturation for the Hanford Waste Treatment Plant Enhanced Waste Glass Models effort. There are several tables of sulfate gas equilibrium values at high temperature to guide experimental gas mixing and to achieve desired SO3 levels. This report also describes the necessary equipment and best practices to perform sulfate saturation experiments for molten glasses. Results and findings will be published when experimental work is finished and this report is validated from the data obtained.
Date: November 30, 2013
Creator: Bliss, Mary
Object Type: Report
System: The UNT Digital Library
Florida Hydrogen Initiative (open access)

Florida Hydrogen Initiative

The Florida Hydrogen Initiative (FHI) was a research, development and demonstration hydrogen and fuel cell program. The FHI program objectives were to develop Florida?s hydrogen and fuel cell infrastructure and to assist DOE in its hydrogen and fuel cell activities The FHI program funded 12 RD&D projects as follows: Hydrogen Refueling Infrastructure and Rental Car Strategies -- L. Lines, Rollins College This project analyzes strategies for Florida's early stage adaptation of hydrogen-powered public transportation. In particular, the report investigates urban and statewide network of refueling stations and the feasibility of establishing a hydrogen rental-car fleet based in Orlando. Methanol Fuel Cell Vehicle Charging Station at Florida Atlantic University ? M. Fuchs, EnerFuel, Inc. The project objectives were to design, and demonstrate a 10 kWnet proton exchange membrane fuel cell stationary power plant operating on methanol, to achieve an electrical energy efficiency of 32% and to demonstrate transient response time of less than 3 milliseconds. Assessment of Public Understanding of the Hydrogen Economy Through Science Center Exhibits, J. Newman, Orlando Science Center The project objective was to design and build an interactive Science Center exhibit called: ?H2Now: the Great Hydrogen Xchange?. On-site Reformation of Diesel Fuel for Hydrogen Fueling Station Applications …
Date: June 30, 2013
Creator: Block, David L.
Object Type: Report
System: The UNT Digital Library
Compositional Dataflow Via Abstract Transition Systems (open access)

Compositional Dataflow Via Abstract Transition Systems

None
Date: April 30, 2013
Creator: Bronevetsky, G.; Burke, M.; Aananthakrishnan, S.; Zhao, J. & Sarkar, V.
Object Type: Report
System: The UNT Digital Library
Business Case for a Micro-Combined Heat and Power Fuel Cell System in Commercial Applications (open access)

Business Case for a Micro-Combined Heat and Power Fuel Cell System in Commercial Applications

Combined heat and power fuel cell systems (CHP-FCSs) provide consistent electrical power and hot water with greater efficiency and lower emissions than alternative sources. These systems can be used either as baseload, grid-connected, or as off-the-grid power sources. This report presents a business case for CHP-FCSs in the range of 5 to 50 kWe. Systems in this power range are considered micro-CHP-FCS. For this particular business case, commercial applications rather than residential or industrial are targeted. To understand the benefits of implementing a micro-CHP-FCS, the characteristics that determine their competitive advantage must first be identified. Locations with high electricity prices and low natural gas prices are ideal locations for micro-CHP-FCSs. Fortunately, these high spark spread locations are generally in the northeastern area of the United States and California where government incentives are already in place to offset the current high cost of the micro-CHP-FCSs. As a result of the inherently high efficiency of a fuel cell and their ability to use the waste heat that is generated as a CHP, they have higher efficiency. This results in lower fuel costs than comparable alternative small-scale power systems (e.g., microturbines and reciprocating engines). A variety of markets should consider micro-CHP-FCSs including those …
Date: October 30, 2013
Creator: Brooks, Kriston P.; Makhmalbaf, Atefe; Anderson, David M.; Amaya, Jodi P.; Pilli, Siva Prasad; Srivastava, Viraj et al.
Object Type: Report
System: The UNT Digital Library