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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 613 records · Page 34
All sourcesNASA NTRSDOE OSTI
DOE OSTI2012

Whole-House Design and Commissioning in the Project Home Again Hot-Humid New Construction Community

BSC has been working with Project Home Again since 2008 and has consulted on the design of around 100 affordable, energy efficient new construction homes for victims of hurricanes Katrina and Rita. This report details the effort on the final two phases of the project: Phases V and VI which resulted in a total of 25 homes constructed in 2011. The goal of this project was to develop and implement an energy efficiency package that will achieve at least 20% whole house source energy savings improvement over the B10 Benchmark.

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATI↗
DOE OSTI2012

Whole-House Design and Commissioning in the Project Home Again Hot-Humid New Construction Community

Building Science Corporation has been working with Project Home Again since 2008 and has consulted on the design of around 100 affordable, energy efficient new construction homes for victims of hurricanes Katrina and Rita. This report details the effort on the final two phases of the project: Phases V and VI, which resulted in a total of 25 homes constructed in 2011. The goal of this project was to develop and implement an energy efficiency package that will achieve at least 20% whole house source energy savings improvement over the B10 Benchmark.

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATI↗
DOE OSTI2013

Integration and Commissioning of a Prototype Federated Cloud for Scientific Workflows

The Fermilab Grid and Cloud Computing Department and the KISTI Global Science experimental Data hub Center propose a joint project. The goals are to enable scientific workflows of stakeholders to run on multiple cloud resources by use of (a) Virtual Infrastructure Automation and Provisioning, (b) Interoperability and Federat ion of Cloud Resources , and (c) High-Throughput Fabric Virtualization. This is a matching fund project in which Fermilab and KISTI will contribute equal resources .

97 MATHEMATICS AND COMPUTING↗
DOE OSTI2018

MELCOR Modeling of Non-LWR Systems Draft Report for the Nuclear Regulatory Commission

This report provides an overview of technical issues and design features relevant to advanced reactors and reviews MELCOR's current readiness for modeling accidents in such reactor types. This report describes advanced reactor physics models currently available or under development, and gauges the level of effort required to develop new models and capabilities applicable to assessing advanced reactor safety issues. Finally, this report reviews the available database that can be used in verification and validation of new models. Four general advanced reactor types are considered in this report: 1) High Temperature Gas-Cooled Reactor (HTGR); 2) Sodium Fast Reactor (SFR); 3) Molten Salt Reactor (MSR); 4) Fluoride Salt-Cooled High Temperature Reactor (FHR)

22 GENERAL STUDIES OF NUCLEAR REACTORS↗
DOE OSTI2018

Blinded by the Light: Commissioning of the Hall C SHMS Heavy Gas Cherenkov Detector

The University of Regina built a heavy gas Cherenkov (HGC) detector for use at the Thomas Jefferson National Accelerator Facility (JLab) as it enters a new era of 12 GeV experiments. This detector will play an important role in pi/K separation between 3 - 11 GeV/c in experimental Hall C and is housed in the Super High Momentum Spectrometer (SHMS). Recently, the first experimental data have become available, allowing the performance of the HGC to be evaluated. The calibration procedure developed is presented, as well as the characterization of the Poisson nature of the photomultiplier tube photoelectron response. Calculation of the HGC efficiency is also performed and used as an independent confirmation of the index of refraction of the Cherenkov media. This thesis also outlines JLab’s experimental Hall C, the data acquisition, the HGC simulation, and the particle identification capabilities of the HGC in an experimental setting.

Ambrose, George Ryan↗
DOE OSTI2015

Beamline XPD (28-ID, DW 100) Commissioning Radiation Survey Report

A radiological survey of the Beamline XPD (28ID, Damping Wiggler) was conducted on February 19, 2015 between 0030 and 0320 in accordance with the Beamline XPD (28-ID) Radiation Survey Plan [1]. This comprehensive survey was limited in scope because the FE slits were not fully open and the filters were not ALL out.

36 MATERIALS SCIENCE↗
DOE OSTI2015

Beamline IXS (10-ID, IVU 22) 25 mA Commissioning Radiation Survey Report

A comprehensive radiological survey of the Beamline IXS (10-ID, In-Vacuum Undulator) was conducted on March 2 and 4, 2015 in accordance with the Beamline IXS (10-ID) Radiation Survey Plan [1]. The purpose of the survey is to verify the shielding integrity of the four 10-ID beamline enclosures (10-ID-A, 10-ID-B, 10-ID-C and 10-ID-D) and transport pipe between 10-ID-B and 10-ID-C. During the surveys the stored beam current varied between 24.83 and 21.77 mA, the ID-10 straight section vacuum was around 0.58 ntorr, and front-end slits open near their hard stop limits.

36 MATERIALS SCIENCE↗
DOE OSTI2015

Beamline SRX (05-ID, IVU 21): 25 mA Commissioning Radiation Survey Report

A comprehensive radiological survey of the Beamline SRX (05-ID, In-Vacuum Undulator) was conducted on March 20, 2015 in accordance with the Beamline SRX (05-ID) Radiation Survey Plan [1]. The purpose of the survey is to verify the shielding integrity of the 3, 05-ID beamline enclosures (05-ID-A, 05-ID-B and 05-ID-D) and the transport pipe in between 05-ID-A, 05-ID-B and 05-ID-D. Enclosure 05-ID-C currently has only a transport pipe connecting 05-ID-B and 05-ID-D, but will serve as the experimental end station as future branch line for the second IVU. During the surveys the stored beam current varied between 21.04 and 24.87 mA, the 05ID straight section vacuum was around 0.43 ntorr, andfront-end slits opened near their hard stop limits.

36 MATERIALS SCIENCE↗
DOE OSTI2015

Beamline CHX (11-ID, IVU 20): 25 mA Commissioning Radiation Survey Report

A comprehensive radiological survey of the Beamline CHX (11-ID, In-Vacuum Undulator) was conducted on March 12 and 13, 2015 in accordance with the Beamline CHX (11-ID) Radiation Survey Plan [1]. Some initial setup of the beamline and front end slits was needed and completed on March 09, 2015. The purpose of the survey was to verify the shielding integrity of the two 11-ID beamline enclosures (11-ID-A and 11-ID-B) and transport pipe between 11-ID-A and 11-ID-B.

36 MATERIALS SCIENCE↗
DOE OSTI2015

Beamline HXN (03-ID, IVU 20): 25 mA Commissioning Radiation Survey Report

A comprehensive radiological survey of the Beamline HXN (03-ID, In-Vacuum Undulator) was conducted on February 27 and March 9, 2015 in accordance with the Beamline HXN (03-ID) Radiation Survey Plan [1]. The purpose of the survey is to verify the shielding integrity of the three, 03-ID beamline enclosures (03-ID-A, 03-ID-B, and 03-ID-C) and transport pipes between 03-ID-A and 03-ID-B, and between 03-ID-B and 03-ID-C. During the surveys the stored beam current varied between 20.75 and 23.15 mA,the ID-03 straight section vacuum was approximately 0.76 ntorr, and front-end slits were open near their hard stop limits.

36 MATERIALS SCIENCE↗
DOE OSTI2015

Beamline XPD (28-ID, DW 100) 25 mA Commissioning Radiation Survey Report

A comprehensive radiological survey of the Beamline XPD (28-ID, Damping Wiggler) was conducted on March 16, March 30 and April 09, 2015 in accordance with the Beamline XPD (28-ID) Radiation Survey Plan [1]. The purpose of the survey is to verify the shielding integrity of the two 28-ID beamline enclosures in use (28-ID-A, 28-ID-C) and the transport pipe in between 28-ID-A and 28-ID-C. Enclosure 28-ID-B currently has only a transport pipe connecting 28-ID-A and 28-ID-C, and is expected to be used as the experimental end station for future branch line.

36 MATERIALS SCIENCE↗
DOE OSTI2014

Applying Matlab LOCO to the NSLSII Storage Ring Commissioning

Linear Optics from Closed Orbits (LOCO) has been a powerful beam-based diagnostics and optics control method for storage rings and synchrotrons worldwide ever since it was established at NSLS by J. Safranek. This method measures the orbit response matrix and optionally the dispersion function of the machine. The data are then fitted to a lattice model by adjusting parameters such as quadrupole and skew quadrupole strengths in the model, BPM gains and rolls, corrector gains and rolls of the measurement system. Any abnormality of the machine that affects the machine optics can then be identified. The resulting lattice model is equivalent to the real machine lattice as seen by the BPMs. Since there are usually two or more BPMs per betatron period in modern circular accelerators, the model is often a very accurate representation of the real machine. According to the fitting result, one can correct the machine lattice to the design lattice by changing the quadrupole and skew quadrupole strengths. LOCO is so important that it is routinely performed at many electron storage rings to guarantee machine performance, especially after the Matlab-based LOCO code became available. The Matlab version includes a user-friendly interface, with many useful fitting and analysis options.

36 MATERIALS SCIENCE↗
DOE OSTI2021

Commissioning of a Cask Enabling Characterization of Irradiated Nuclear Fuels with Pulsed Neutrons

Irradiation tests are a key component of nuclear fuel development and identifying typical and atypical regions in the irradiated fuel volume relies on very few characterization techniques. The goal of the effort reported here is to provide complementary measurements adding to the available parameter space for post irradiation examination as well as to inform subsequent hot cell PIE examinations by identifying typical and atypical regions with respect to microstructure, tomographic data, or isotope densities. Pulsed neutrons, enabling diffraction as well as energy-resolved neutron imaging and neutron absorption resonance spectroscopy, offer unique capabilities for this purpose. Time-of-flight neutron diffraction has the potential to offer efficient, non-destructive and non-contact microstructural characterization of irradiated fuel pins with spatial resolution of 1 mm 3 to 1 cm 3 while for energy-resolved neutron imaging (and by extension tomography) a resolution of 100 μm was demonstrated. The potential results include crystallinity vs. amorphous volumes and microstructural information such as phase compositions, lattice strains (indicative of residual stresses or chemistry variations) and textures from the diffraction data as well as distances (e.g. pellet to cladding), cracks, and isotopic distributions of minor actinides, fission products as well as fission gas partial pressures e.g. in the plenum from energy resolved neutron imaging.

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS↗