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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 433 records · Page 24
All sourcesNASA NTRSDOE OSTI
DOE OSTI2019

Quarterly Progress Report Q3 FY2019 Apr-Jun 2019

Our main activity this quarter was focused on carrying out the data analysis following the experimental campaign conducted at the Irradiated Fuel Examination Laboratory (IFEL) at ORNL. More specifically, we focused on the demonstration of hard X-rays two reflections, as well as the quantification of the background reduction and signal-to-noise-ratio (SNR) under different experimental conditions. Significant time and effort was spent developing data analysis tools using the Root software toolkit, and carefully checking data consistency across data sets and with simulations. Some results are presented below.

73 NUCLEAR PHYSICS AND RADIATION PHYSICS↗
DOE OSTI2019

Wood-to-Fuel for California's Transportation Sector using Autothermal Pyrolysis (Progress Report)

We sent our updated draft Site License Agreement back to SPI on June 4 th , with redlines. Gary Blanc of SPI said he would circulate it internally to appropriate parties and get back to us. He did not return an accepted or redlined version to us before the end of the month of July, nor did he send us any questions/comments or updates, despite them being requested. He is currently traveling around visiting SPI’s various forestry locations and mills, so is difficult to reach. In working towards the commercialization strategy, during the month of July, further research was completed on understanding and evaluating the availability and potential availability of fire clearing forestry residue in California. In July, a meeting with Stephen Kaffka and Rob Williams who are both authors of the report “An Assessment of Biomass Resource in California, 2013” was attended. These individuals provided us with guidance and information about how to identify the availability and potential availability of forestry/wood resource biomass in California. Also, in the month of July, a meeting with Cal-Fire was attended in order to understand what Cal-Fire plans to do in terms of reducing the risk of wildfires and how much potential fire clearing forestry residue biomass this will produce for California. Additionally, the potential of a novel pathway of producing H2 from pyrolysis oil, maximizing the products’ value, as well as maximizing the carbon emission reduction potential by incorporating carbon capture onsite, was investigated. We continued with the process of subcontracting with Iowa State University and Frontline BioEnergy. We have our Contract Administrators working with their counterparts at each partner to get the details in place. Draft contracts with statements of work were provided to each partner, and updated schedules and budgets, broken down by task in the statements of work, have been requested from each.

09 BIOMASS FUELS↗
DOE OSTI2019

Progress Report on An Exascale Computational Simulation Capability for Pervasive Fracture & Failure

How does a structure fail in an explosion? Is there an engineering design opportunity to mitigate the effects of a blast? These are questions that may be addressed with simulation; however, a computational simulation capability to answer these questions must include developments in material physics modeling and numerical algorithms that we believe are possible, but do not yet exist. This LDRD project proposes to develop the physics models and computational approaches to create a computational simulation approach to answer these physics and engineering questions.

42 ENGINEERING↗
DOE OSTI2019

Automated Particle Classifier (Quarterly Progress Report Q4 FY19)

This is the fourth quarter of reporting for an extension after the final year of this project. Work during this quarter included developing a relationship with UK AWE in anticipation of advising and supporting the development of a fast neutron detector for UK MOD.

73 NUCLEAR PHYSICS AND RADIATION PHYSICS↗
DOE OSTI2019

Hydrogen Quantitative Risk Assessment (Annual Progress Report)

DOE has identified consistent safety, codes, and standards as a critical need for the deployment of hydrogen technologies, with key barriers related to the availability and implementation of technical information in the development of regulations, codes, and standards. Advances in codes and standards have been enabled by risk-informed approaches to create and implement revisions to codes, such as National Fire Protection Association (NFPA) 2, NFPA 55, and International Organization for Standardization (ISO) Technical Specification (TS)-19880-1. This project provides the technical basis for these revisions, enabling the assessment of the safety of hydrogen fuel cell systems and infrastructure using QRA and physics-based models of hydrogen behavior. The risk and behavior tools that are developed in this project are motivated by, shared directly with, and used by the committees revising relevant codes and standards, thus forming the scientific basis to ensure that code requirements are consistent, logical, and defensible.

08 HYDROGEN↗
DOE OSTI2019

Gamma mirrors Quarterly Progress Report Y1Q4 FY2019

During the fourth quarter of FY19, we completed task 1.2 of Phase 1, the data analysis of the experimental campaign conducted at the Irradiated Fuel Examination Laboratory (IFEL) at ORNL. The best part of the analysis was conducted during the third quarter and the relevant findings can be found in the FY19 Q3 report. Phase II of the project was started during the month of September, more specifically Task 2. All experiments so far were conducted with ultrasmooth flat optics with a periodic multilayer coating with reflectivity of >80% in the 100 keV range. We have been determining the best available simulation tools to model X-ray focusing optics, typically made of quadratic surfaces, in order to survey the relevant parameter space and conduct the design study. Candidate focusing optics designs are Wolter I optics, Kirkpatrick-Baez or KB optics and Schmidt optics. Informed by the IFEL results, we are also considering a single-reflection concentrator design to attempt to quantify possible trade-off between bandpass multilayers overall reflectivity, multiple reflections and energy selectivity.

98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL P↗
DOE OSTI2019

Improving Fission Products at CARIBU: Near Field Detection (Q4/FY19 Quarterly Progress Report)

We have been having ongoing discussions about the analysis and the text of the 95 Zr manuscript with our collaborators at Texas A&M University (TAMU). K. Kolos has travelled to Texas to discuss, once again, some details of our GEANT4 simulation used to determine the gas-counter efficiency. In that process, we discovered that there was a slight disagreement (~0.5%) between our results and the results obtained with the EGS code used by the TAMU group. We are currently working to determine and magnitude and source of the discrepancy. This has taken a considerable amount of time and, unfortunately, has hindered us from sending out the paper to all of our collaborators. We also recently found out that Benjamin Schroeder, the Texas A&M student supported by the CENTUAR Center of Excellence who joined our project earlier this year, has decided to leave graduate school after obtaining his Master Thesis. Although this is a loss for our team, we do not foresee this to cause a major disruption in the project. Our TAMU collaborators are still committed to the success of these measurements.

73 NUCLEAR PHYSICS AND RADIATION PHYSICS↗
DOE OSTI2019

Terry Turbopump Expanded Operating Band Modeling and Full-Scale Test Development Efforts in FY19 (Progress Report)

The Terry Turbine Expanded Operating Band Project is currently conducting testing at Texas A&M University, and the resulting data has been incorporated into MELCOR models of the Terry turbines used in nuclear power plants. These improved models have produced improvements in the Fukushima Daiichi Unit 2 simulations while providing new insights into the behavior of the plant. The development of future experimental test efforts is ongoing. Development of and refinements to the plans for full-scale steam and steam-water turbine ingestion testing has been performed. These full-scale steam-based tests will complement the testing occurring at Texas A&M University, and will resolve the remaining questions regarding scale or working fluid. Planning work has also begun for future testing intended to explore the uncontrolled RCIC self-regulation theorized to have occurred in Fukushima Daiichi Unit 2.

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS↗
DOE OSTI2018

Electric Drive Technologies (FY19 Annual Progress Report)

This project is part of a multi-lab consortium that leverages U.S. research expertise and facilities at national labs and universities to significantly advance electric drive power density and reliability, while simultaneously reducing cost. The final objective of the consortium is to develop a 100 kW traction drive system that achieves 33 kW/L, has an operational life of 300,000 miles, and a cost of less than $\$6$/kW. One element of the system is a 100 kW inverter with a power density of 100 kW/L and a cost of $\$2.7$/kW. New materials such as widebandgap semiconductors, soft magnetic materials, and ceramic dielectrics, integrated using multi-objective cooptimization design techniques, will be utilized to achieve these program goals. This project focuses on a subset of the power electronics work within the consortium, specifically the design, fabrication, and evaluation of vertical GaN power devices suitable for automotive applications.

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATI↗
DOE OSTI2019

MagMicro with Ultra-High Energy Resolution (FY19 Q4 Progress Report)

In Q4, we have completed the fabrication of the first set of four 32-pixel MMC gamma detector arrays (Figure 1.) After we had finally identified and corrected the problems with the deposition of the paramagnetic Ag:Er sensor in Q3, we deposited and patterned the insulators and adhesion layers and electroplated the Au absorber to complete the device.

42 ENGINEERING↗
DOE OSTI2019

Sandia National Laboratories (FY19 Progress Report)

The Energetic Neutrons campaign led by Sandia National Laboratories (SNL) had a successful year testing electronic devices under 14 MeV neutron irradiation at OMEGA. During FY19 SNL employees were trained to take over new responsibilities while visiting LLE, continued collaborating with external organizations and generated knowledge that supports SNL's National Security mission.

99 GENERAL AND MISCELLANEOUS↗
DOE OSTI2019

CICE Consortium Progress Report, June 2018 - December 2019

The CICE Consortium accomplished a number of major upgrades to our sea ice model code, scripts and testing infrastructure, while strengthening our visibility in the international modeling community. We released CICE versions 6.0.0, 6.0.1, 6.0.2 and 6.1.0, all of which include updated releases of Icepack. Major new capabilities include a floe size distribution, new coupling infrastructure, improvements to all of CICE’s dynamics options, a new atmospheric data set for historical simulations, overhauled documentation, and more robust and flexible scripts for running and testing the code. Several key testing processes were automated this year. In addition, the team is actively engaged in planning our first user workshop and tutorial in February 2020. In addition to overseeing modifications to the Consortium’s resources and code releases, management tasks included meeting with and updating the Consortium’s Sponsors group in October 2018, prioritizing tasks by mapping them onto potential release targets, and rescuing early CICE releases (version 1 through 3.14) from a disappearing LANL archive.

54 ENVIRONMENTAL SCIENCES↗
DOE OSTI2020

Partial support of the Condensed Matter and Materials Research Committee. Final progress report

The Condensed Matter and Materials Research Committee (CMMRC) is one of five standing committees of the National Academies’ Board on Physics and Astronomy (BPA) and is charged with assisting the BPA in achieving its goals—monitoring the health of physics and astronomy, identifying important new developments at the scientific forefronts, fostering interactions with other fields, strengthening connections to technology, facilitating effective service to the nation, and enhancing education in physics. CMMRC carries out its functions in several ways – providing expert advice to the BPA in monitoring the health of condensed matter and materials research and providing perspective on issues that arise in those fields; assisting other National Academies’ boards in developing proposals and initiating studies that impact these fields; providing long-term stewardship of National Academies reports that it has played a role in initiating and that are of importance to the condensed matter and materials research communities, and providing a means for dialog with federal agencies on these and related fields.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Wood-to-Fuel for California's Transportation Sector using Autothermal Pyrolysis (FRD-17-002 Progress Report)

During the month of January, further research was carried out on understanding and evaluating the availability and potential availability of fire clearing, and other, forestry residue in California. Further investigations into the negative emissions of biomass pyrolysis products and their upgrading for use in other products (such as fuels) by incorporating carbon capture, drying and compression, and sequestration systems were executed. The cost to achieve the maximum amount of negative emissions from these biomass-pyrolysis products with carbon capture and sequestration techniques was calculated. Sensitivity analysis was employed to understand how feedstock collection cost and product selling price affects this cost.

09 BIOMASS FUELS↗