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Prognostic Analysis of the Tactical Quiet Generator

Description: The U.S. Army needs prognostic analysis of mission-critical equipment to enable condition-based maintenance before failure. ORNL has developed and patented prognostic technology that quantifies condition change from noisy, multi-channel, time-serial data. This report describes an initial application of ORNL's prognostic technology to the Army's Tactical Quiet Generator (TQG), which is designed to operate continuously at 10 kW. Less-than-full power operation causes unburned fuel to accumulate on… more
Date: September 1, 2008
Creator: Hively, Lee M
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Summary Report for the Initiation of Compact Development for Particles with 425-micron Kernels

Description: The purpose of this research was the initiation of overcoating TRISO particles with 425 {micro}m kernels. In the AGR-1 task, the overcoating process was optimized for particles with an outer diameter (OD) of 780 {micro}m and a 350 {micro}m kernel. Therefore it needed to be determined how well the overcoating process used to fabricate AGR-1 compacts would perform on particles with an 855 {micro}m OD and a 425 {micro}m kernel. The matrix properties and overcoating procedures were altered from the… more
Date: September 1, 2007
Creator: Pappano, Peter J
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

PWR Facility Dose Modeling Using MCNP5 and the CADIS/ADVANTG Variance-Reduction Methodology

Description: The feasibility of modeling a pressurized-water-reactor (PWR) facility and calculating dose rates at all locations within the containment and adjoining structures using MCNP5 with mesh tallies is presented. Calculations of dose rates resulting from neutron and photon sources from the reactor (operating and shut down for various periods) and the spent fuel pool, as well as for the photon source from the primary coolant loop, were all of interest. Identification of the PWR facility, development o… more
Date: September 1, 2007
Creator: Blakeman, Edward D; Peplow, Douglas E.; Wagner, John C; Murphy, Brian D & Mueller, Don
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Evaluation of the French Haut Taux de Combustion (HTC) Critical Experiment Data

Description: In the 1980s, a series of critical experiments referred to as the Haut Taux de Combustion (HTC) experiments was conducted by the Institut de Radioprotection et de Surete Nucleaire (IRSN) at the experimental criticality facility in Valduc, France. The plutonium-to- uranium ratio and the isotopic compositions of both the uranium and plutonium used in the simulated fuel rods were designed to be similar to what would be found in a typical pressurized-water reactor fuel assembly that initially had a… more
Date: September 1, 2008
Creator: Mueller, Don; Elam, Karla Riggle & Fox, Patricia B
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radiation Embrittlement Archive Web App User Guide

Description: The Radiation Embrittlement Archive (REAP) Web App User Guide describes the software requirements to use the REAP web app, how to navigate, search, enter and extract data from the archive.
Date: September 1, 2013
Creator: Klasky, Hilda B; Williams, Paul T & Bass, Bennett Richard
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Neutron Diffraction Residual Strain Tensor Measurements Within The Phase IA Weld Mock-up Plate P-5

Description: Oak Ridge National Laboratory (ORNL) has worked with NRC and EPRI to apply neutron and X-ray diffraction methods to characterize the residual stresses in a number of dissimilar metal weld mockups and samples. The design of the Phase IA specimens aimed to enable stress measurements by several methods and computational modeling of the weld residual stresses. The partial groove in the 304L stainless steel plate was filled with weld beads of Alloy 82. A summary of the weld conditions for each plate… more
Date: September 1, 2011
Creator: Hubbard, Camden R
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Reactor Technology Options Study for Near-Term Deployment of GNEP Grid-Appropriate Reactors

Description: World energy demand is projected to significantly increase over the coming decades. The International Energy Agency projects that electricity demand will increase 50% by 2015 and double by 2030, with most of the increase coming in developing countries as they experience double-digit rates of economic growth and seek to improve their standards of living. Energy is the necessary driver for human development, and the demand for energy in these countries will be met using whatever production techno… more
Date: September 1, 2007
Creator: Ingersoll, Daniel T. & Poore, Willis P., III
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Investigation of Pipelines Integrity Associated With Pump Modules Vibration for Pumping Station 9 of Alyeska Pipeline Service Company

Description: Since the operation of PS09 SR module in 2007, it has been observed that there is vibration in various parts of the structures, on various segments of piping, and on appurtenance items. At DOT Pipeline and Hazardous Materials Safety Administration (PHMSA) request, ORNL Subject Matter Experts support PHMSA in its review and analysis of the observed vibration phenomenon. The review and analysis consider possible effects of pipeline design features, vibration characteristics, machinery configurati… more
Date: September 1, 2009
Creator: Wang, Jy-An John
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Characterization of Porosity Development in Oxidized Graphite using Automated Image Analysis Techniques

Description: This document reports on initial activities at ORNL aimed at quantitative characterization of porosity development in oxidized graphite specimens using automated image analysis (AIA) techniques. A series of cylindrical shape specimens were machined from nuclear-grade graphite (type PCEA, from GrafTech International). The specimens were oxidized in air to various levels of weight loss (between 5 and 20 %) and at three oxidation temperatures (between 600 and 750 oC). The procedure used for specim… more
Date: September 1, 2009
Creator: Contescu, Cristian I & Burchell, Timothy D
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hot Water Distribution System Program Documentation and Comparison to Experimental Data

Description: In 2003, the California Energy Commission s (CEC s) Public Interest Energy Research (PIER) program funded Oak Ridge National Laboratory (ORNL) to create a computer program to analyze hot water distribution systems for single family residences, and to perform such analyses for a selection of houses. This effort and its results were documented in a report provided to CEC in March, 2004 [1]. The principal objective of effort was to compare the water and energy wasted between various possible hot w… more
Date: September 1, 2007
Creator: Baskin, Evelyn; Craddick, William G; Lenarduzzi, Roberto; Wendt, Robert L & Woodbury, Professor Keith A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

White Paper on Data Repository Reorganization Proposal for the xLPR Project

Description: As the xLPR project moves along, it is important to properly manage the knowledge generated by the different groups. We focus specifically on the knowledge and communications written in files, including general documents, source code and executable files. Data generated through the project are different in nature and, for this reason, need to be treated differently. To that end, ORNL put in place a series of tools that facilitate proper storage and management of project data, document and code … more
Date: September 1, 2012
Creator: Klasky, Hilda B; Williams, Paul T & Bass, Bennett Richard
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Shape trends and triaxiality in neutron-rich odd-mass Y and Nbisotopes

Description: New level schemes of Y and Nb isotopes are proposed based on measurements of prompt gamma rays from 252Cf fission at Gammasphere. Shape trends regarding triaxiality and quadrupole deformations are studied.
Date: September 28, 2004
Creator: Luo, Y. X.; Rasmussen, J. O.; Gelberg, A.; Stefanescu, I.; Hamilton, J. H.; Ramayya, A. V. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

SystemBurn: Principles of Design and Operation Release 3.0

Description: As high performance computing technology progresses toward the progressively more extreme scales required to address critical computational problems of both national and global interest, power and cooling for these extreme scale systems is becoming a growing concern. A standardized methodology for testing system requirements under maximal system load and validating system environmental capability to meet those requirements is critical to maintaining system stability and minimizing power and coo… more
Date: September 1, 2012
Creator: Dobson, Jonathan D; Kuehn, Jeffery A; Poole, Stephen W; Hodson, Stephen W; Glandon, Steven R; Reister, David B et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Finite element analysis of multilayer coextrusion.

Description: Multilayer coextrusion has become a popular commercial process for producing complex polymeric products from soda bottles to reflective coatings. A numerical model of a multilayer coextrusion process is developed based on a finite element discretization and two different free-surface methods, an arbitrary-Lagrangian-Eulerian (ALE) moving mesh implementation and an Eulerian level set method, to understand the moving boundary problem associated with the polymer-polymer interface. The goal of this… more
Date: September 1, 2011
Creator: Hopkins, Matthew Morgan; Schunk, Peter Randall; Baer, Thomas A. (Proctor & Gamble Company, West Chester, OH); Mrozek, Randy A. (Army Research Laboratory, Adelphi, MD); Lenhart, Joseph Ludlow (Army Research Laboratory, Adelphi, MD); Rao, Rekha Ranjana et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analysis of Natural Graphite, Synthetic Graphite, and Thermosetting Resin Candidates for Use in Fuel Compact Matrix

Description: The AGR-1 and AGR-2 compacting process involved overcoating TRISO particles and compacting them in a steel die. The overcoating step is the process of applying matrix to the OPyC layer of TRISO particles in a rotating drum in order to build up an overcoat layer of desired thickness. The matrix used in overcoating is a mixture of natural graphite, synthetic graphite, and thermosetting resin in the ratio, by weight, of 64:16:20. A wet mixing process was used for AGR-1 and AGR-2, in that the graph… more
Date: September 1, 2011
Creator: Trammell, Michael P & Pappano, Peter J
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Solar-Assisted Electric Vehicle Charging Station Interim Report

Description: Oak Ridge National Laboratory (ORNL) has been awarded $6.8 million in the Department of Energy (DOE) American Recovery and Reinvestment Act (ARRA) funds as part of an overall $114.8 million ECOtality grant with matching funds from regional partners to install 125 solar-assisted Electric Vehicle (EV) charging stations across Knoxville, Nashville, Chattanooga, and Memphis. Significant progress has been made toward completing the scope with the installation of 25 solar-assisted charging stations a… more
Date: September 1, 2011
Creator: Lapsa, Melissa Voss; Durfee, Norman; Maxey, L Curt & Overbey, Randall M
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

White Paper on the Use of Team Calendars with the JIRA Issue Tracking System and Confluence Collaboration Tools for the xLPR Project

Description: ORNL was tasked by xLPR project management to propose a team calendar for use within the xLPR consortium. Among various options that were considered, the approach judged by ORNL to best fit the needs of the xLPR project is presented in this document. The Atlassian Team Calendars plug-in used with the Confluence collaboration tool was recommended for several reasons, including the advantage that it provides for a tight integration between Confluence (found at https://xlpr.ornl.gov/wiki ) and xLP… more
Date: September 1, 2012
Creator: Klasky, Hilda B.; Williams, Paul T. & Bass, Bennett Richard
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radiation Stability Studies

Description: From abstract: "An investigation of the radiation stabilities of aqueous solutions of sodium ethylenediamine tetraacetate and sodium acetate was made using a 3000-curie Co⁶⁰ source...A study of the behavior of the standard-size Beckman type glass pH electrodes in a solution containing 0.36 curie of Ce¹⁴⁴-Pr¹⁴⁴ activity per milliliter showed the useful electrode life to be of the order of two to eight days."
Date: September 22, 1952
Creator: Blanco, R. E.; Kibbey, A. H. & Pannell, J. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Abrasive Blasting for Cleaning Parts

Description: Abstract: A demonstration on August 22, 1945, showed that Alpha or Beta M or K parts, including insulators, can be well cleaned with a pressure-feed abrasive blaster. The abrasive is a slurry of alumina and water mixed with high velocity air in a special feed nozzle. The slurry is continuously recycled.
Date: September 1945
Creator: McWherter, Jack R. & Yerazunis, Stephen
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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