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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 505 records · Page 28
All sourcesNASA NTRSDOE OSTI
DOE OSTI2016

Diagramming Transactive Building Business Cases: Using Principles of e3 Value to Document Valuation Studies

Energy management in buildings is becoming more transactive. Pacific Northwest National Laboratory and the U.S. Department of Energy Building Technologies Office recently defined innovative use cases wherein market-like mechanisms are used to manage energy within buildings, between buildings, and between buildings and third-party entities, such as power utilities. A next step toward defining a set of transactive use cases in the buildings domain is to carefully diagram the corresponding business cases to capture details of transactions among all stakeholders and their economic value propositions. The principles of e3-value diagramming are applied in this report toward creating business value diagrams. These principles are extended to be consistent with Universal Modeling Language use-case diagrams. Example diagrams are presented for a subset of buildings-domain use cases that were introduced in an earlier Pacific Northwest National Laboratory report. The diagrams are intended to clearly represent an understanding of the transactions through which individual entities accumulate value in their respective use cases, and the diagrams should therefore support economic valuation studies. The report reviews some of the foundational principles of e3 value and includes authors’ insights concerning the formulation of these diagrams using Universal Modeling Language as a more systematic modeling approach.

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATI↗
DOE OSTI2017

Meta-Analysis of the Oil Price Elasticity of the GDP for Policy Analysis: Documentation

Given the important role of oil in economic activities, policy makers are interested in estimates of the potential damage to the economy from oil price shocks, particularly during periods of rapid and large increases that accompany severe shocks. Such estimates are needed to quantify the economic costs of oil price shocks, and to evaluate the potential benefits of alternative policy responses. Although research on the economic impacts of oil price shocks is extensive and has generally found that large increases in oil prices exert negative economic impacts, the range of estimates, summarized by the oil price elasticity of the GDP or other aggregate measure of economic activity, is very wide. There are also conditions under which the relationship between the oil price and the economy could be positive. The range of estimates of the oil price elasticity of the GDP for the United States is typified by averages from the studies of Hamilton (2005, 2012) and Kilian and Vigfusson (2014), in which the implied elasticities were -0.014 to - 0.069 and +0.004 to -0.052, respectively. We employ a meta-regression approach to systematically summarize available estimates of the oil price elasticity of the GDP for oil importing economies, and examine the role of key factors. The resulting regression model was used to estimate the oil price elasticity of the GDP for the United States. Based on this we estimate the mean elasticity for the United States at -0.0238, with a 68% confidence interval of -0.0075 to -0.0402, four quarters after a shock.

02 PETROLEUM↗
DOE OSTI2017

City Reach Code Technical Support Document

This report describes and analyzes a set of energy efficiency measures that will save 20% energy over ASHRAE Standard 90.1-2013. The measures will be used to formulate a Reach Code for cities aiming to go beyond national model energy codes. A coalition of U.S. cities together with other stakeholders wanted to facilitate the development of voluntary guidelines and standards that can be implemented in stages at the city level to improve building energy efficiency. The coalition's efforts are being supported by the U.S. Department of Energy via Pacific Northwest National Laboratory (PNNL) and in collaboration with the New Buildings Institute.

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATI↗
DOE OSTI2017

Complete Status Report Documenting Development of Friction Stir Welding for Joining Thin Wall Tubing of ODS Alloys

The development of friction stir welding (FSW) for joining thin sections of the advanced oxide dispersion strengthened (ODS) 14YWT ferritic alloy was initiated in Fuel Cycle Research and Development (FCRD), now the Nuclear Technology Research and Development (NTRD), in 2015. The first FSW experiment was conducted in late FY15 and successfully produced a bead-on-plate stir zone (SZ) on a 1 mm thick plate of 14YWT (SM13 heat). The goal of this research task is to ultimately demonstrate that FSW is a feasible method for joining thin wall (0.5 mm thick) tubing of 14YWT.

36 MATERIALS SCIENCE↗
DOE OSTI2017

Quarterly Management Document – FY17, 3rd Quarter, Physics-based Creep Simulations of Thick Section Welds in High Temperature and Pressure Applications

Progress on modeling the the creep of thick sections welds in Alloy 740H is reported. Climb of dislocations during creep has been added to the model. Creep testing is continuing and stress drop testing has been initiated to determine the threshold stress of this particle-strengthened alloy. Work has also begun on generating synthetic microstructures, representative of experimental microstructures, from data collected with EBSD. This will enable incorporation of experimental microstructures into the modeling and simulation effort.

36 MATERIALS SCIENCE↗
DOE OSTI2017

NCSP IER 422 CED-3b Documentation

A Subcritical Copper-Reflected α-phase Plutonium (SCRαP) integral benchmark experiment has been designed and measured. In this experiment, multiplication is approximated using correlated neutron data from a detector system consisting of 3He tubes inside high density polyethylene (HDPE). Measurements were performed on various subcritical experimental configurations consisting of a weapons-grade plutonium sphere surrounded by different Cu thicknesses. In addition to the proposed base experimental configurations with Cu, additional configurations were performed with the plutonium ball nested in various thicknesses of interleaved HDPE spherical shells mixed in with the Cu shells. The HDPE is intended to provide fast neutron moderation and reflection, resulting in additional measurements with differing multiplication, spectra, and nuclear data sensitivity.

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS↗
DOE OSTI2016

CUBIT: Geometry and Mesh Generation Toolkit (15.1 User Documentation)

CUBIT is a full-featured software toolkit for robust generation of two- and three-dimensional finite element meshes (grids) and geometry preparation. Its main goal is to reduce the time to generate meshes, particularly large hex meshes of complicated, interlocking assemblies. It is a solid-modeler based preprocessor that meshes volumes and surfaces for finite element analysis. Mesh generation algorithms include quadrilateral and triangular paving, 2D and 3D mapping, hex sweeping and multi-sweeping, tetrahedral meshing, and various special purpose primitives. CUBIT contains many algorithms for controlling and automating much of the meshing process, such as automatic scheme selection, interval matching, sweep grouping, and also includes state-of-the-art smoothing algorithms.

97 MATHEMATICS AND COMPUTING↗
DOE OSTI2018

Non-Light-Duty Energy and Greenhouse Gas Emissions Accounting Tool (NEAT): Documentation and User Guide for Updated Domestic Freight Component

The Non-Light-Duty Energy and Greenhouse Gas Emissions Accounting Tool (NEAT) was developed to help evaluate various scenarios of non-light-duty transportation demand, mode choice, energy intensity changes, and alternative fuel use. The model was initiated as a part of the Transportation Energy Futures Study conducted jointly by the National Renewable Energy Laboratory and Argonne National Laboratory.

33 ADVANCED PROPULSION SYSTEMS↗
DOE OSTI2016

CUBIT Geometry and Mesh Generation Toolkit 15.2 User Documentation

Welcome to CUBIT, the Sandia National Laboratory automated mesh generation toolkit. CUBIT is a full-featured software toolkit for robust generation of two- and three-dimensional finite element meshes (grids) and geometry preparation. Its main goal is to reduce the time to generate meshes, particularly large hex meshes of complicated, interlocking assemblies. It is a solidmodeler based preprocessor that meshes volumes and surfaces for finite element analysis.

97 MATHEMATICS AND COMPUTING↗
DOE OSTI2017

Quarterly Management Document – FY17, 4th Quarter, Physics-based Creep Simulations of Thick Section Welds in High Temperature and Pressure Applications

During the 4th quarter of FY17 modeling and simulation development of creep in nickel-based alloys was continued with a focus on incorporation of simulated alloy microstructures into the creep model. Additionally, the model was calibrated with experimental creep data from Alloy 617. Experimental data collection also continued with creep tests, stress drop tests and characterization of alloy microstructures.

36 MATERIALS SCIENCE↗
DOE OSTI2016

Virtual Integrated Battery Environment (VIBE): Version 1.2 Release Documentation

As part of the CAEBAT (Computer Aided Engineering for Batteries) activities, ORNL developed a flexible, robust, and computationally scalable open-architecture framework that integrates multi-physics and multi-scale battery models. The physics phenomena of interest include charge and thermal transport, electrochemical reactions, and mechanical stresses. They operate and interact across the porous 3D structure of the electrodes (cathodes an d anodes), the solid or liquid electrolyte system and the other battery components. The underlying lower-length processes are accounted for through closure equations and sub-models that are based on resolved quantities.

25 ENERGY STORAGE↗
DOE OSTI2018

Quarterly Management Document – FY18, 1st Quarter, Physics-based Creep Simulations of Thick Section Welds in High Temperature and Pressure Applications

During the 1st quarter of FY18 modeling and simulation of the creep of thick section welds continued although some workscope from FY17 still needs to be completed. Four stress drop tests to determine the threshold stress for creep in Alloy 740H were carried out. One has finished and post-test analysis shows a threshold creep stress of about 67 MPa which is lower than that found in a previous program for Alloy 617 at the same temperature. Alloy 617 is not as creep resistant as Alloy 740H and the reason for the lower than expected threshold stress for Alloy 740H is being investigated further. Also analysis of the gamma prime particle size in an aging study closely follows the aging characteristics of gamma prime in Alloy 617. Further analysis of other aged materials will be carried out during the 2nd quarter of FY18 to confirm that the aging characteristic of Alloy 740H are the same as that for Alloy 617.

36 MATERIALS SCIENCE↗
DOE OSTI2018

Document Release of CSAM 99-140 to DNFSB for Review, October 17, 2018

The data sheet on HFE-7200 from 3M is included in attachment 2. Unfortunately, at this time, the Criticality Safety Group cannot allow the replacement of TCE by HFE-7200 for the reasons discussed below. The moderating and reflecting properties of HFE-7200 were compared to trichloroethylene (TCE) and water. The results of several calculations are presented in attachment 1 and indicate that water is a far superior moderator than either HFE-7200 or TCE, but HFE-7200 results in significantly higher reactivity than TCE. The criticality safety evaluation for machining (CSM1020) credited the usage of TCE and this material was included in the Monte Carlo calculations to determine the reactivity of the upset conditions. Unfortunately, since the results of these calculations are relatively high, it cannot be determined without significant re-evaluation whether the replacement of conservatisms were employed in CSM1020 to simplify the calculations, it is likely that a re-evaluation considering less conservative models would allow the approval of HFE-7200. The Criticality Safety Group will include HFE-7200 when the evaluation for machining is upgraded to higher mass limits (with shape control).

61 RADIATION PROTECTION AND DOSIMETRY↗
DOE OSTI2018

A Section 106 Evaluation of the Mercury Bowling Alley, Area 23, Nevada National Security Site, Nye County, Nevada, with Photographic Documentation Addendums

The National Nuclear Security Administration Nevada Field Office (NNSA/NFO) anticipates demolition of the Mercury Bowling Alley (Building 23-517) on the Nevada National Security Site (NNSS) in Nye County, Nevada (Figure 1). This survey was prompted by plans to construct new facilities at the Bowling Alley location to support NNSS’s changing role in national security. The Bowling Alley has been largely vacant since the mid-1990s following the end of nuclear testing at what was then the Nevada Test Site (NTS). The building is suffering rapid decay. An Area of Potential Effects (APE) of 4.5 acres was surveyed, resulting in recording and evaluation of the Bowling Alley (SHPO Resource Number B14451) and one associated resource (AR1). The APE is located in Section 11 T15S R53E MDBM (projected) at the principal NNSS base of Mercury in Area 23. In 2010, the NTS name was changed to the NNSS, and will be referred to as such throughout this report. Fieldwork and report preparation were done by Desert Research Institute (DRI) cultural resources staff. Architectural descriptions and portions of this report specific to the architecture of the Bowling Alley were completed by Ron Reno, Ph.D., RPA who meets Secretary of the Interior’s Professional Qualifications Standards for Architectural Historian. Administration of the project was by Colleen M. Beck, Ph.D. Historical background regarding Mercury and the NNSS was developed by Maureen King. Beck photographed the building and its environs. Copies of the building form and report are on file in the Nevada Cultural Resources Inventory System at the Nevada State Office of Historic Preservation (SHPO); DRI, Las Vegas; and in the NNSA/NFO curation facility, Las Vegas.

54 ENVIRONMENTAL SCIENCES↗