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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 811 records · Page 45
All sourcesNASA NTRSDOE OSTI
DOE OSTI2017

Progress Report-Keystone 3

In the second quarter of FY2017, the focus of Keystone 3 was jointly on the establishment of methods for evaluation of high energy cells both electrochemically and through the use of advanced characterization techniques and resources, establishment of methods for the preparation of 1 Ah or larger cells, and use of different models to identify cell design parameters for achieving both 300 and 500 Wh/kg. These routes directly support the fourth quarter milestone in FY17 of achieving 300 Wh/kg and the ability to cycle the cell a minimum of 50 times. To facilitate discussions between the Keystone 3 team members biweekly meetings have been held to discuss path and to ensure progress is moving forward.

25 ENERGY STORAGE↗
DOE OSTI2018

Casting of Reinforced Concrete Beam: Project Progress

Aging concrete structures in nuclear power plants undergo mechanical, physical, chemical, and radioactive degradation. One of the chemical degradation mechanisms that is investigated in the research project under the Plant Modernization Pathway of the Light Water Reactor Sustainability Program is the alkali-silica reaction (ASR). The ASR is a chemical process that over time, causes expansion of calcium silicate hydrate gel. To date, the research project has studied the ASR gel formation and expansion in non-reinforced concrete specimens using vibro-acoustic modulation (VAM) technique. However, nuclear plant concrete structures are reinforced, and it might influence the application of VAM technique on reinforced concrete specimens compared to non-reinforced specimens. A research activity is initiated between Idaho National Laboratory, Vanderbilt University, and University of Nebraska - Lincoln to study the impact of reinforcement in concrete structures on the application of the VAM technique. To support this activity, University of Nebraska - Lincoln is casting and curing four reinforced concrete samples that at the end of the curing period will be transferred to Vanderbilt University to perform experimental VAM study. Vanderbilt University and Idaho National Laboratory will perform the data analysis and enhance the developed structural health monitoring framework. In this report, a progress on casting and curing of reinforced concrete samples at University of Nebraska – Lincoln is provided.

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND ↗
DOE OSTI2019

Identification and Shipment Progress of the INL and LANL Samples to Be Received at ORNL

Ferritic-martensitic steel Grade 92, with T91 as a reference, together with austenitic stainless steel (or Incoloy Alloy) 800H and its grain-boundary-engineered version 800H-TMP (ThermoMechanical Processing), is investigated in this project. A total of fifteen Grade 92 samples from two or three heats, four T91 samples from two heats, and six 800H and six 800H-TMP samples from one heat were selected, which were primarily irradiated in the Advanced Test Reactor of Idaho National Laboratory (INL), with the rest in the High Flux Isotope Reactor of Oak Ridge National Laboratory (ORNL), BOR-60 of Russia, and Phénix reactor of France. The samples were irradiated in the temperature range of 241 to 720°C and a dose range of 1.28 to ~70 displacements per atom. All the INL samples, most of the ORNL samples, and part of the LANL (Los Alamos National Laboratory) samples from the ATR, BOR-60 and Phénix reactors have been received at the Irradiated Materials Examination and Testing (IMET) hot cell facility and Low Activation Materials Design and Analysis (LAMDA) laboratory of ORNL. Post-irradiation examination of the received samples is in progress at ORNL. The effects of irradiation temperature, dose, reactor (e.g., dose rate, neutron-spectrum-induced difference in transmutation), TMP, and heats variation on the microstructures and mechanical properties of the samples will be evaluated.

36 MATERIALS SCIENCE↗
DOE OSTI2018

Recent Progress with APC Nb 3 Sn Conductors [Slides]

1.Development of APC-PIT multi wires started in 2017. Since then progress has been fast; 2.Tests up to 31 T at 4.2 K show that B irr is 26-27 T, B c2 is 27-28 T, ~1-2 T higher than RRP; 3. R&D in the past two years has led to significant improvement of wire recipe and quality. The non-Cu J c is on similar level with present RRP wires, in spite that the Nb 3 Sn % is still low and grain size is not fully refined due to unoptimized wire recipe and heat treatment; 4.The Nb 3 Sn layer J c at 16 T is ~2.5 times of RRP despite grain size not fully refined; 5.The improvement is still ongoing. The following levels are expected: 1) By improving conductor recipe and quality and heat treatment, the fine-grain Nb 3 Sn fraction can be increased to ~40%, as in standard tube type and PIT wires; 2) By optimizing O content and heat treatment, the grain size can be reduced to 50-65 nm or less, which leads to a Nb 3 Sn layer J c of 5000-6000 A/mm 2 for 4.2 K, 16 T. If so, this means the 4.2 K, 16 T non-Cu Jc can reach 2000-2400 A/mm 2 . This will surpass the FCC spec and also provide >30% margin. Above 16 T, the APC conductors should give extra Jc gain due to higher B irr and shift in F p -B curve peak to higher fields.

43 PARTICLE ACCELERATORS↗
DOE OSTI2019

Polymer Aging/Characterization Core Capability Enhancement is Underway (Progress Summary)

Motivation: Accelerated aging of polymeric materials is needed to predict their long-term mechanical functionality. Two key metrics used to evaluate their performance are compression set and load retention. Currently, specimens are aged under compressive strain at four different temperatures (25, 40, 55, and 70°C) for 1-2 years, and compression set and load retention are measured at various timepoints. At each timepoint, specimens are measured at three different relaxation times (immediately, 1 hr, and 24 hrs) after removal from the aging fixtures. The measurements include both thickness measurement and load testing. Time-temperature superposition (TTS) is applied to the isothermal data to obtain long-term predictions. There is a desire to reduce both the length of the studies and the amount of effort required to perform the studies. Significance: Additional aging ovens will provide the opportunity to add a higher fifth temperature, which could reduce the length of accelerated aging studies, as well as provide a spare oven in case one fails. If determined to be feasible, instrumented aging fixtures could reduce the amount of effort required to perform the studies, potentially eliminating the need to remove the specimens from the fixtures. Progress: Two new aging ovens have been received. The controllers were verified to be operational. The nitrogen purge still needs to be verified. Instrumented aging fixtures potentially including gap adjustment (to set the aging strain and measure specimen thickness) and a load transducer are under consideration.

36 MATERIALS SCIENCE↗
DOE OSTI2019

Batteries 2018 Annual Progress Report

This document summarizes the progress of VTO battery R&D projects supported during the fiscal year 2018 (FY 2018). In FY 2018, the DOE VTO battery R&D funding was approximately $101 million. Its R&D focus was on the development of high-energy batteries for PEVs and very high-power devices for hybrid vehicles. The electrochemical energy storage roadmap describes ongoing and planned efforts to develop electrochemical storage technologies for PEVs. To advance battery technology to improve the market penetration of PEVs and hybrid vehicles, the program focuses on overcoming specific technical barriers typically related to the battery’s cost, performance, life (both calendar life and cycle life), its tolerance to abusive conditions, and its recyclability/sustainability. Various battery chemistries are being investigated with that aim.

25 ENERGY STORAGE↗
DOE OSTI2019

Technology Integration 2018 Annual Progress Report

The FY 2018 Technology Integration Annual Progress Report covers 28 multi-year projects funded by the Vehicle Technologies Office. The report includes information on 21 competitively awarded projects, ranging from training on alternative fuels and vehicles for first responders, to safety training and design for maintenance facilities housing gaseous fuel vehicles, to electric vehicle community partner programs. It also includes seven projects conducted by several of VTO’s national laboratory partners, Argonne National Laboratory, Oak Ridge National Laboratory and the National Renewable Energy Laboratory. These projects range from a Technical Assistance project for business, industry, government and individuals, to the EcoCar 3 Student Competition, and the Fuel Economy Information Project.

33 ADVANCED PROPULSION SYSTEMS↗
DOE OSTI2019

Leveraging Connections 2018 Progress Report

This 2018 progress report contains a list of Los Alamos National Laboratory's top innovations of the time, including: Inventing - Los Alamos National Laboratory has been inventing for the past 75 years to accomplish the difficult, the unexpected and at times, what seems impossible. The Feynman Center is rethinking roadmaps for patent and software strategies to enable Los Alamos to achieve greater impact of its innovations; Innovating - The US technology advantage in national security is dependent on continual innovation. Los Alamos’ immense contributions in leading edge science and technology research and development are directed into solving complex and forthcoming national security challenges. Check out the Technology Snapshot platform at https://techsnapshot.lanl.gov to explore Los Alamos’s technologies ready to be developed into disruptive applications; Disrupting - Known well for developing the first nuclear weapon, big and small science at Los Alamos is behind many other disruptive innovations. This year we are highlighting Los Alamos’s leadership in small modular nuclear reactor design and development, work on international nuclear safeguards electronics instrumentation, and first demonstrated deployment of non-destructive testing to measure corrosion in nuclear material storage containers; Partnering - Los Alamos science has assisted partners big and small with their toughest challenges, this year Los Alamos scientists assisted two New Mexico farm owners—Tim Seaman with Manzanar Los Silvestres apple orchard in Abiquiu and Christopher Bassett of Freshies of New Mexico in El Guique — protect their crops from frost.

22 GENERAL STUDIES OF NUCLEAR REACTORS↗
DOE OSTI2019

Environmental ISR (Quarterly Progress Report Q3 FY19 April-June 2019)

Progress have been good on both projects. On the subsurface radionuclide project, graduate student, Emily Tran, submitted our first joint manuscript resulting from this collaboration to Water Resources. The manuscript covers batch and flow through experiments using radionuclides with and without bentonite colloids through a naturally fractured chalk rock. Solutions used were collected from a field site in Israel with high ionic strength and filtered prior to using in the experiment. Results show that the bentonite colloids are unstable under these high ionic strengths in carbonate rock in Israel. The U is not significantly eluted with or without bentonite colloids and cerium precipitates as a mobile colloid in the absence of colloids.

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEA↗
DOE OSTI2019

Annual Earth System Grid Federation 2019 Progress Report

Members of the Earth System Grid Federation (ESGF) gathered in Washington, DC, on December 3–7, 2018, for the 8th Annual ESGF Face-to-Face (F2F) Conference. The event packed 40 presentations, several plenary sessions, a poster session, guest speakers, an awards ceremony, and an Executive Committee (XC) meeting into the week. ESGF working teams (WTs) conduct daily operations remotely all over the world. Although most teams meet online regularly, in-person interaction is incredibly important for cementing relationships and evaluating progress.

54 ENVIRONMENTAL SCIENCES↗
DOE OSTI2019

Measurement of Fission Gas Release from Irradiated Fuel During Temperature Transients (Progress Report)

A device for real-time fuel heating observations and collection of fission gas release data is being developed to study nuclear fuel behavior during a temperature transient. The proposed system incorporates high heating and cooling rates, a digital violet laser microscope, mass spectrometry, and gamma ray spectrometry. By placing the system in a hot cell or in a hot cell–like enclosure, the capability could support study of a range of samples, including low and high burnup nuclear fuels. This report documents a conceptional design that incorporates a commercially available system that can be modified to achieve the desired specifications and proposed modifications. This report has been submitted in fulfillment of milestone M3FT-19OR020204082 titled, “Progress Report on Measurement of Fission Gas Release from Irradiated Fuel during Temperature Transient,” for the US Department of Energy Office of Nuclear Energy, Advanced Fuel Campaign of the Fuel Cycle R&D program.

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS↗
DOE OSTI2016

Progress in Overcoming Materials Challenges with Supercritical CO 2 Recompression Closed Brayton Cycles

The supercritical carbon dioxide (S-CO2) Brayton Cycle has gained significant attention in the last decade as an advanced power cycle capable of achieving high efficiency power conversion. Sandia National Laboratories, with support from the U.S. Department of Energy Office of Nuclear Energy (US DOE-NE), has been conducting research and development in order to deliver a technology that is ready for commercialization. There are a wide range of materials related challenges that must be overcome for the success of this technology. At Sandia, recent work has focused on the following main areas: (1) Investigating the potential for system cost re duction through the introduction of low cost alloys in low temperature loop sections, (2) Identifying material options for 10MW RCBC systems, (3) Understanding and resolving turbine degradation, (4) Identifying gas foil bearing behavior in CO 2 , and (5) Identifying the influence of gas chemistry on alloy corrosion. Progress in each of these areas is provided in this report.

36 MATERIALS SCIENCE↗
DOE OSTI2016

Strategic Petroleum Reserve Cemented Annulus Modeling and Testing; FY16 Progress

Sandia National Laboratories has begun developing modeling and analysis tools of flow through the cemented portion of a cemented annulus in a Strategic Petroleum Reserve (SPR) well since August of 2015. The goal of this work is to develop models and testing procedures to diagnose the health of cemented annuli at SPR sites. In Fiscal Year 2016 (FY16), we have developed several tests and associated models that we believe are sufficient for this purpose. This report outlines progress made in FY16 and future work.

36 MATERIALS SCIENCE↗
DOE OSTI2019

Wood-to-Fuel for California's Transportation Sector using Autothermal Pyrolysis August 2019 (Progress Report for FRD-17-002)

What we planned to accomplish this period: In the month of August we planned to get any comments or edits on the Site License Agreement from SPI for review, make further progress on the market assessment for the Wood-to-Bio-oil Market Report, and continue moving towards getting the subcontracts in place with Iowa State University and Frontline BioEnergy, LLC. What we actually accomplished this period: We finally received the updated Site License Agreement from SPI on August 21st. The only comments and edits on it are minor and should not take more than a couple of weeks of review internally (the only reason this is weeks instead of days is due to the Laboratory’s fiscal year end approaching on September 30, making for heavily increased workloads on our folks that review these documents, and making a few weeks, instead of days, more realistic) before we can pass it along to Iowa State University and Frontline BioEnergy, LLC.

09 BIOMASS FUELS↗
DOE OSTI2019

Progress Towards A New CTH Code Verification & Validation Test Suite

The CTH multiphysics hydrocode is used in a wide variety of important calculations. An essential part of ensuring hydrocode accuracy and credibility is thorough code verification and validation (V&V). In the past, CTH V&V work (particularly verification) has not been consistently well documented. In FY19, we have made substantial progress towards addressing this need. In this report, we present a new CTH V&V test suite composed of traditional hydrocode verification problems used by similar ASC codes as well as validation problems for some of the most frequently used materials models and capabilities in CTH. For the verification problems, we present not only results and computed errors, but also convergence rates. Validation problems include mesh refinement studies, providing evidence that results are converging.

71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSIC↗
DOE OSTI2019

Progress on a High Sensitivity, High Purity, One-Electron-One-Proton Search for the MiniBooNE Low Energy Excess in the MicroBooNE Detector

MicroBooNE is a large liquid argon time projection chamber (LArTPC) located at Fermilab. One of the experiments primary aims is to investigate the CCQE-like excess of ν ϵ events observed by MiniBooNE at low energy. A novel approach to analyzing LArTPC data using an amalgam of Deep Learning and traditional algorithms has been developed and is capable of end to end reconstruction and selection. We report here an overview and progress to event selection which yields greater than 99.999% rejection of backgrounds. Statistical, flux, and some cross section systematics have also been evaluated. Detector systematics and additional cross section systematics are still under study.

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND ↗
DOE OSTI2019

Sodium Fire Collaborative Study Progress (CNWG FY 2019)

This report discusses the progress on the collaboration between Sandia National Laboratories (Sandia) and Japan Atomic Energy Agency (JAEA) on the sodium fire research in fiscal year 2019. First, the current sodium pool fire model in MELCOR, which is adapted from CONTAIN-LMR code, is discussed. The associated sodium fire input requirements are also presented. A proposed model improvement developed at Sandia is discussed. Finally, the validation study of the sodium pool fire model in MELCOR carried out by a JAEA's staff is described. To validate this model, a JAEA sodium pool fire experiment (F7-1 test) is used. A preliminary calculation is performed using a modified MELCOR model from a previous experiment simulation. The results of the calculation are discussed as well as suggestions for improvement. Finally, recommendations are made for new MELCOR simulations for next fiscal year, 2020.

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗