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Long-Range Development Framework

Cipriani, Ralph J.

The Long-Range Development Framework (LRDF) guides effective, efficient, and sustainable land and infrastructure development for Sandia National Laboratories’ (SNL) New Mexico and California campuses. The LRDF is SNL’s seminal site planning document. Similar to a municipal planning document, it articulates a long-range development vision, framework goals, and a set of integrated development principles for land use, security, transportation, and environmental sustainability. The LRDF is neither a project planning document, nor does it recommend or eliminate specific projects; rather, it introduces planning concepts and provides guidance regarding effective, efficient, and sustainable site development.

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TYPE Other Report YEAR 2016
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TA-II Sub-Area Plan: Overview & Summary

Cipriani, Ralph J.

Technical Area II is a brownfield site with a central, but “backyard” location that makes it a perfect area for site-support activities, particularly those that can be relocated from the TA-I “front-yard.” TA-II has a large amount of undeveloped land that should be held in reserve for future R&D mission work. Specifically, the Sub-Area Plan recommends: (1) Accommodating primarily site-support land uses, including site-support functions that can be relocated from TA-I; (2) Preserving land for future mission development opportunities which also protects sensitive environmental areas; (3) Locating future development along the Hardin and 9th Avenue corridors where existing infrastructure exists; and (4) Constructing critical infrastructure links (e.g., roads and utilities).

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TYPE Other Report YEAR 2016
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TTR Sub-Area Plan: Overview & Summary

Cipriani, Ralph J.

The TTR Sub-Area Plan is currently under development and is significantly influenced by National Nuclear Security Administration (NNSA) decisions about permitting and environmental regulatory compliance issues. The sub-area plan will build upon previous draft master plans, F&I revitalization plans, and building studies. Planning concepts under consideration are: Continue to use and preserve large tracts of land for large-scale mission-related testing; Identify investments to protect, sustain, and recapitalize infrastructure, facilities, and equipment assets; Identify opportunities to dispose of obsolete facilities and consolidate common functions in order to reduce operating costs.

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TYPE Other Report YEAR 2016
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CA Sub-Area Plan: Overview & Summary

Cipriani, Ralph J.

The Plan seeks to: (1) Maintain current Research and Development (R&D), manufacturing, and administration land use; (2) Create a new corporate entrance and “front door” on the east side of the campus in an expanded General Access Area; (3) Make security changes to expand the Limited Areas to accommodate growth in classified programs, and expand the General Access Area to promote collaboration with the private sector in concert with general Livermore Valley Open Campus (LVOC) development; (4) Organize and consolidate mission capability groups on campus; and (5) Enhance the quality of the working environment through pedestrian and bicycle circulation, landscape, recreational and sustainable site design improvements.

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TYPE Other Report YEAR 2016
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SNL perspective on the nTOF workshop

Jones, Brent M.; Hahn, Kelly; Ruiz, Carlos L.; Chandler, Gordon A.; Fehl, David L.; Lash, Joel S.; Knapp, P.F.; Gomez, Matthew R.; Hansen, Stephanie B.; Harding, Eric H.; Mcpherson, Leroy A.; Nelson, Alan J.; Rochau, G.A.; Schmit, Paul; Sefkow, Adam B.; Sinars, Daniel; Torres, Jose; Bur, James A.; Cooper, Gary; Bonura, Michael; Long, Joel; Styron, Jedediah D.; Buckles, Rob; Garza, Irene; Moy, Kenneth J.; Davis, Brent; Tinsley, Jim; Tiangco, Rod; Miller, Kirk; Mckenna, Ian

Abstract not provided.

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TYPE Presentation YEAR 2016
OSTI

On the Path to SunShot: Emerging Issues and Challenges in Integrating Solar with the Distribution System

Broderick, Robert J.; Palmintier, Bryan; Mather, Bary; Coddington, Michael; Baker, Kyri; Ding, Fei; Reno, Matthew J.; Lave, Matt; Bharatkumar, Ashwini

From 2010 through the first half of 2015, the installed capacity of solar photovoltaics (PV) connected to the U.S. distribution system increased sixfold, from approximately 1.8 GW to more than 11 GW. This accounts for over half of the approximate total U.S. solar installations of 20 GW. Distributed generation from PV (DGPV) is expected to comprise 50%–60% of total U.S. PV capacity through at least 2020. The rapid deployment of high penetrations of DGPV into the distribution system has both highlighted challenges and demonstrated many successful examples of integrating higher penetration levels than previously thought possible. In this report, we analyze challenges, solutions, and research needs in the context of DGPV deployment to date and the much higher levels of integration that are expected with the achievement of the U.S. Department of Energy’s SunShot targets.

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TYPE Other Report YEAR 2016
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Analysis of SHDAS Platform Evaluation at PSRF

Merchant, Bion J.

The Seismo-Hydroacoustic Data Acquisition System (SHDAS) is undergoing evaluation in preparation for its engineering, development, and deployment by the U.S Navy as an ocean bottom seismic monitoring system. A prototype of the Underwater Platform has been deployed at the Pinedale Seismic Research Facility (PSRF) in Wyoming to determine how well it couples to the ground for the purpose of measuring ground motion. The evaluation was conducted during the summer of 2014 by the U.S. Navy, U.S. Air Force, RP Kromer Consulting, and other contractors. Sandia National Laboratories (SNL) was asked to analyze and interpret the collected data so as to comment on coupling of the Underwater Platform to the ground.

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TYPE SAND Report YEAR 2016
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Engineering Bioelectronic Signal Transduction Using the Bacterial Type III Secretion Apparatus

Azam, Anum; Tullman-Ercek, Danielle

Engineering efficient methods for living systems to transfer electrical energy to non-living systems, at relevant size scales, continues to challenge our knowledge of materials and biology. Our goal was to enable signal transduction between cells and inorganic materials, using controlled electron transport as the energy transfer mechanism. We envision using the cell as a living battery, providing a set of environmental signals to trigger synthetic biological networks that divert intracellular electron transport pathways to inorganic extracellular structures. Conversely, changing electron influxes could guide cellular responses. It is challenging, however, to precisely engineer nanostructured materials to achieve controllable catalytic or electronic properties and connect them with biological energy sources. Our approach to this problem is to engineer protein scaffolds, taking advantage of the native recognition, selectivity and self-assembly properties of these nano-scale building blocks as well as their native intracellular localization patterns. We are using a type III secretion system (T3SS) needle protein from Salmonella enterica, PrgI, as a template for metal nanowire synthesis for biosensing and bioenergy applications. We demonstrate that purified PrgI monomers spontaneously self assemble into long filaments, and that high-affinity peptide tags specific for attachment to functionalized particles can be integrated into the N-terminal region of PrgI. The resulting filaments selectively bind to gold, whether the filaments are assembled in vitro, sheared from cells, or remain attached to live S. enterica cell membranes. Chemical reduction of the gold modified PrgI variants results in structures that are several microns in length and which incorporate a contiguous gold surface.

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TYPE SAND Report YEAR 2016
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Systematic Literature Review: How is Model-Based Systems Engineering Justified?

Carroll, Edward R.; Malins, Robert J.

The genesis for this systematic literature review was to search for industry case studies that could inform a decision of whether or not to support the change process, investment, training, and tools needed to implement an MBSE approach across the engineering enterprise. The question asked was, how the change from a document - based systems engineering approach (DBSE) to a model-based systems engineering approach (MBSE) is justified? The methodology employed for this systematic literature review was to conduct a document search of electronically published case studies by authors from the defense, space, and complex systems product engineering industries. The 67 case studies without metrics mainly attributed success to completeness, consistency, and communication of requirements. The 21 case studies with metrics on cost and schedule primarily attributed success to the ability of an MBSE approach to improve defect prevention strategies. The primary conclusion is that there is a significant advantage to project performance by applying an MBSE approach. An MBSE approach made the engineering processes on a complex system development effort more efficient by improving requirements completeness, consistency, and communication. These were seen in engineering processes involved in requirements management, concept exploration, design reuse, test and qualification, Verification and Validation, and margins analyses. An MBSE approach was most effective at improving defect prevention strategies. The approach was found to enhance the capability to find defects early in the system development life cycle (SDLC), when they could be fixed with less impact and prevented rework in later phases, thus mitigating risks to cost, schedule, and mission. However, if a program only employed an MBSE approach for requirements management, advantages from finding defects early could not be leveraged in later phases, where the savings in cost and schedule from rework prevention is realized. Significant performance success was achieved when the systems engineer (SE) held a leadership role over engineering process es. A number of the case studies addressed a general lack of skilled MBSE engineers as a major hindrance to implementing an MBSE approach successfully.

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TYPE SAND Report YEAR 2016
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HySafe research priorities workshop report: Summary of the workshop organized in cooperation with US DOE and supported by EC JRC in Washington DC November 10-11, 2014

Keller, Jay; Hill, Laura; Kiuru, Kristian; Groth, Katrina M.; Hecht, Ethan S.; James, Will

The HySafe research priorities workshop is held on the even years between the International Conference on Hydrogen Safety (ICHS) which is held on the odd years. The research priorities workshop is intended to identify the state-of-the-art in understanding of the physical behavior of hydrogen and hydrogen systems with a focus on safety. Typical issues addressed include behavior of unintended hydrogen releases, transient combustion phenomena, effectiveness of mitigation measures, and hydrogen effects in materials. In the workshop critical knowledge gaps are identified. Areas of research and coordinated actions for the near and medium term are derived and prioritized from these knowledge gaps. The stimulated research helps pave the way for the rapid and safe deployment of hydrogen technologies on a global scale. To support the idea of delivering globally accepted research priorities for hydrogen safety the workshop is organized as an internationally open meeting. In attendance are stakeholders from the academic community (universities, national laboratories), funding agencies, and industry. The industry participation is critically important to ensure that the research priorities align with the current needs of the industry responsible for the deployment of hydrogen technologies. This report presents the results of the HySafe Research Priorities Workshop held in Washing ton, D.C. on November 10-11, 2014. At the workshop the participants presented updates (since the previous workshop organized two years before in Berlin, Germany) of their research and development work on hydrogen safety. Following the workshop, participants were asked to provide feedback on high-priority topics for each of the research areas discussed and to rank research area categories and individual research topics within these categories.

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TYPE SAND Report YEAR 2016
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Assessment of ALEGRA Computation for Magnetostatic Configurations

ACES Journal

Grinfeld, Michael; Niederhaus, John H.J.; Porwitzky, Andrew

Here, a closed-form solution is described here for the equilibrium configurations of the magnetic field in a simple heterogeneous domain. This problem and its solution are used for rigorous assessment of the accuracy of the ALEGRA code in the quasistatic limit. By the equilibrium configuration we understand the static condition, or the stationary states without macroscopic current. The analysis includes quite a general class of 2D solutions for which a linear isotropic metallic matrix is placed inside a stationary magnetic field approaching a constant value Hi° at infinity. The process of evolution of the magnetic fields inside and outside the inclusion and the parameters for which the quasi-static approach provides for self-consistent results is also explored. Lastly, it is demonstrated that under spatial mesh refinement, ALEGRA converges to the analytic solution for the interior of the inclusion at the expected rate, for both body-fitted and regular rectangular meshes.

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TYPE Journal Article YEAR 2016
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Characterization of Reconsolidated Crushed Salt from the BAMBUS Site

Hansen, Francis D.

Observational petrofabrics, thermal, mechanical, and hydrological measurements were made on reconsolidated salt samples extracted from the field site in which a study called Backfilling and Sealing of Underground Repositories for Radioactive Waste in Salt was conducted. Similar characterization was completed more than a decade ago, so this work furthers previous measurements after sustained consolidation in situ. Porosity determined by traditional point-counting on polished sections and helium porosimeter methods ranged from 20-25% with consolidation governed by brittle processes, as evidence of fluid-aided, grain-boundary processes was rarely observed. Thermal conductivity in the range of 2.3 W/(m∙K) is consistent for granular halite in this porosity range. Gas flow measurements yielded permeability of the order of 5e-13m2. Pressure-sensitive compressive strengths at 0.5, 1.0, and 2.0 MPa confining pressure were 8, 9, and 14 MPa, respectively, with apparent elastic moduli increase with deformation.

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TYPE SAND Report YEAR 2016
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Results 43401–43600 of 99,299
Results 43401–43600 of 99,299