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WELDING AND BRAZING OF HIGH-TEMPERATURE RADIATORS AND HEAT EXCHANGERS

Description: Procedures were developed for fabricating highperformance radiators and heat exchangers for the Aircraft Nuclear Propulsion (ANP) Program. These components, which contain multitudes of tube-to-tube sheet and tube-to-fin joints, are similar in design to those under consideration for a variety of space vehicle applications. In order to ensure reliability of the tube-to-tube sheet joints, techniques producing welds of extremely high quality were used and back brazing of the welds with a suitable a… more
Date: February 20, 1962
Creator: Slaughter, G.M. & Patriarca, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Collector sealants and breathing. Final Report, 25 September 1978-31 December 1979

Description: The objectives of this program were: (1) to investigate the pertinent properties of a variety of possible sealants for solar collectors and identify the most promising candidates, and (2) to study the effect of breathing in flat-plate, thermal solar collector units. The study involved two types of sealants, Class PS which includes preformed seals or gaskets and Class SC which includes sealing compounds or caulks. It was the intent of the study to obtain data regarding initial properties of cand… more
Date: February 20, 1980
Creator: Mendelsohn, M A; Luck, R M; Yeoman, F A & Navish, Jr, F W
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of marketable solar assisted heat pumps. Phase II. Summary report, technical results

Description: A water source heat pump has been designed that is capable of operating over the range from 40 to 110/sup 0/F entering water temperature and has a heating coefficient of performance greater than six in the upper portion of this range. A computerized heat pump balance program was written to allow the performance of either a water-to-water or a water-to-air heat pump to be predicted in either the heating or cooling mode. A detailed program description, flow charts, and sample outputs are appended… more
Date: February 20, 1981
Creator: Hundt, R. & Heard, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Simulation Strategies for Shock-Turbulence Interactions

Description: The computational challenge of predicting shock-turbulence interactions stems from the fundamentally different physics at play. Shock waves are microscopically thin regions wherein flow properties change rapidly over a distance roughly equal to the molecular mean free path; hence, they are essentially strong discontinuities in the flow field. Turbulence, on the other hand, is a chaotic phenomenon with broadband spatial and temporal scales of motion. Most shock-capturing methods rely on strong n… more
Date: February 20, 2008
Creator: Cook, A; Larsson, J; Cabot, W & Lele, S K
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

FY 2007 Miniature Spherical Retroreflectors Final Report

Description: Miniature spherical retroreflectors, less than 8 millimeters in diameter, are currently being developed to enhance remote optical detection of nuclear proliferation activities. These retroreflecting spheres resemble small, sand-colored marbles that have the unique optical property of providing a strong reflection directly back to the source (i.e., retroreflecting) when illuminated with a laser. The addition of specific coatings, sensitive to specific chemicals or radioactive decay in the enviro… more
Date: February 20, 2008
Creator: Anheier, Norman C.; Bernacki, Bruce E. & Krishnaswami, Kannan
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Block V solar cell module: design and test specification for intermediate-load applications, 1981

Description: The requirements for the design and test of terrestrial solar cell modules for one phase of DOE's Low-Cost Solar Array Project are presented. Intermediate-load modules designed to meet this specification will generally have the following design features and characteristics: (1) nominal operating voltage (V/sub no/) between 5 Vdc and 20 Vdc; (2) ability to be series-connected to worst-case open-circuit voltages of 1000 Vdc; (3) dimensions not exceeding 1.22 m x 2.44 m (4 ft x 8 ft); (4) flat-pla… more
Date: February 20, 1981
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High-resolution crystal spectrometer for the 10-60 (angstrom) EUV region

Description: A vacuum crystal spectrometer with nominal resolving power approaching 1000 is described for measuring emission lines with wavelength in the extreme ultraviolet region up to 60 Angstroms. The instrument utilizes a flat octadecyl hydrogen maleate (OHM) crystal and a thin-window 1-D position-sensitive gas proportional detector. This detector employs a 1 {micro}m-thick 100 x8 mm{sup 2} aluminized polyimide window and operates at one atmosphere pressure. The spectrometer has been implemented on the… more
Date: February 20, 2004
Creator: Beiersdorfer, P; Brown, G V; Goddard, R & Wargelin, B J
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Development of K-Basin High-Strength Homogeneous Sludge Simulants and Correlations Between Unconfined Compressive Strength and Shear Strength

Description: K-Basin sludge will be stored in the Sludge Transport and Storage Containers (STSCs) at an interim storage location on Central Plateau before being treated and packaged for disposal. During the storage period, sludge in the STSCs may consolidate/agglomerate, potentially resulting in high-shear-strength material. The Sludge Treatment Project (STP) plans to use water jets to retrieve K-Basin sludge after the interim storage. STP has identified shear strength to be a key parameter that should be b… more
Date: February 20, 2011
Creator: Onishi, Yasuo; Baer, Ellen BK; Chun, Jaehun; Yokuda, Satoru T.; Schmidt, Andrew J.; Sande, Susan et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Solar pilot plant, phase I. Quarterly report No. 1, July--December 1975

Description: Honeywell Inc. is investigating the technical and economic feasibility of generating electricity from solar energy. During the first 6 months of the program (1 July--31 December 1975), a preliminary design baseline for a 10-MW(e) solar pilot plant was generated and analyzed. Subsequently, several changes were made to improve performance and/or reduce cost. Conceptual designs and research experiments were generated for three key subsystems--collector, steam generator, and thermal storage. Limite… more
Date: February 20, 1976
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hanford Site Annual Treatability Studies Report Calendar Year 2001

Description: This report provides information required to be reported annually by the Washington Administrative Code (WAC) 173-303-071 (3)(r)(ii)(F) and (3)(s)(ix) on the treatability studies conducted on the Hanford Site in 2000. These studies were conducted as required by WAC 173-303-071, "Excluded Categories of Waste," sections (3)(r) and (s). Unless otherwise noted, the waste samples were provided by and the treatability studies were performed for the U.S. Department of Energy, Richland Operations Offic… more
Date: February 20, 2002
Creator: Grohs, Eugene L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Documentation Package for the RFID Temperature Monitoring System (Of Model 9977 Packages at NTS).

Description: The technical basis for extending the Model 9977 shipping package periodic maintenance beyond the one-year interval to a maximum of five years is based on the performance of the O-ring seals and the environmental conditions. The DOE Packaging Certification Program (PCP) has tasked Argonne National Laboratory to develop a Radio-Frequency Identification (RFID) temperature monitoring system for use by the facility personnel at DAF/NTS. The RFID temperature monitoring system, depicted in the figure… more
Date: February 20, 2009
Creator: Chen, K.; Tsai, H. & Sciences, Decision and Information
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Research, Monitoring, and Evaluation for the Federal Columbia River Estuary Program.

Description: The purpose of this document is to describe research, monitoring, and evaluation (RME) for the Federal Columbia River Estuary Program, hereafter called 'the Estuary Program'. The intent of this RME effort is to provide data and information to evaluate progress toward meeting program goals and objectives and support decision making in the Estuary Program. The goal of the Estuary Program is to understand, conserve, and restore the estuary ecosystem to improve the performance of listed salmonid po… more
Date: February 20, 2008
Creator: Johnson, Gary E. & Diefenderfer, Heida L. (Pacific Northwest National Laboratory)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Water-Soluble 2-Hydroxyisophthalamides for Sensitization of Lanthanide Luminescence

Description: A series of octadentate ligands featuring the 2-hydroxyisophthalamide (IAM) antenna chromophore (to sensitize Tb(III) and Eu(III) luminescence) has been prepared and characterized. The length of the alkyl amine scaffold that links the four IAM moieties has been varied in order to investigate the effect of the ligand backbone on the stability and photophysical properties of the Ln(III) complexes. The amine backbones utilized in this study are N,N,N{prime},N{prime}-tetrakis-(2-aminoethyl)-ethane-… more
Date: February 20, 2008
Creator: Samuel, Amanda P. S.; Moore, Evan G.; Melchior, Marco; Xu, Jide & Raymond, Kenneth N.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Developing an Operational Capabilities Index of the Emergency Services Sector

Description: In order to enhance the resilience of the Nation and its ability to protect itself in the face of natural and human-caused hazards, the ability of the critical infrastructure (CI) system to withstand specific threats and return to normal operations after degradation must be determined. To fully analyze the resilience of a region and the CI that resides within it, both the actual resilience of the individual CI and the capability of the Emergency Services Sector (ESS) to protect against and resp… more
Date: February 20, 2012
Creator: Collins, M. J.; Eaton, L. K.; Shoemaker, Z. M.; Fisher, R. E.; Veselka, S. N.; Wallace, K. E. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Spatial Analysis of Emissions Sources for HCCI Combustion at Low Loads Using a Multi-Zone Model

Description: We have conducted a detailed numerical analysis of HCCI engine operation at low loads to investigate the sources of HC and CO emissions and the associated combustion inefficiencies. Engine performance and emissions are evaluated as fueling is reduced from typical HCCI conditions, with an equivalence ratio f = 0.26 to very low loads (f = 0.04). Calculations are conducted using a segregated multi-zone methodology and a detailed chemical kinetic mechanism for iso-octane with 859 chemical species. … more
Date: February 20, 2004
Creator: Aceves, S. M.; Flowers, D. L.; Espinosa-Loza, F.; Martinez-Frias, J.; Dec, J. E.; Sjoberg, M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Caustic Recycle from Hanford Tank Waste Using NaSICON Ceramic Membrane Salt Splitting Process

Description: A family of inorganic ceramic materials, called sodium (Na) Super Ion Conductors (NaSICON), has been studied at Pacific Northwest National Laboratory (PNNL) to investigate their ability to separate sodium from radioactively contaminated sodium salt solutions for treating U.S. Department of Energy (DOE) tank wastes. Ceramatec Inc. developed and fabricated a membrane containing a proprietary NAS-GY material formulation that was electrochemically tested in a bench-scale apparatus with both a simul… more
Date: February 20, 2009
Creator: Fountain, Matthew S.; Kurath, Dean E.; Sevigny, Gary J.; Poloski, Adam P.; Pendleton, J.; Balagopal, S. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Wavefront-sensor-based electron density measurements for laser-plasma accelerators

Description: Characterization of the electron density in laser produced plasmas is presented using direct wavefront analysis of a probe laser beam. The performance of a laser-driven plasma-wakefield accelerator depends on the plasma wavelength, hence on the electron density. Density measurements using a conventional folded-wave interferometer and using a commercial wavefront sensor are compared for different regimes of the laser-plasma accelerator. It is shown that direct wavefront measurements agree with i… more
Date: February 20, 2010
Creator: Plateau, Guillaume; Matlis, Nicholas; Geddes, Cameron; Gonsalves, Anthony; Shiraishi, Satomi; Lin, Chen et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Innovative Protocols for in SITU MTBE Degradation by Using Molecular Probes-An Enhanced Chemical-Bio Oxidation Technique

Description: In situ chemical oxidation (ISCO) is a common technology to cleanup petroleum hydrocarbon-contaminated soils and groundwater. Sodium percarbonate (SPC) is an oxidant which is activated by iron (Fe) to produce Fenton-like reactions. Western Research Institute, in conjunction with Regenesis and the U.S. Department of Energy, conducted a study that investigated the performance of a 'safe' oxidant, SPC, to cleanup groundwater and soils contaminated with petroleum hydrocarbons and associated contami… more
Date: February 20, 2009
Creator: Fallgren, Paul
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Integration and conventional systems at STAR

Description: At the beginning of the design and construction of the STAR Detector, the collaboration assigned a team of physicists and engineers the responsibility of coordinating the construction of the detector. This group managed the general space assignments for each sub-system and coordinated the assembly and planning for the detector. Furthermore, as this group was the only STAR group with the responsibility of looking at the system as a whole, the collaboration assigned it several tasks that spanned … more
Date: February 20, 2002
Creator: Matis, Howard S.; Brown, Ralph L.; Christie, William; Edwards, W.R.; Jared, Richard; Minor, Bob et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

HIGH TEMPERATURE HIGH PRESSURE THERMODYNAMIC MEASUREMENTS FOR COAL MODEL COMPOUNDS

Description: It is well known that the fluid phase equilibria can be represented by a number of {gamma}-models , but unfortunately most of them do not function well under high temperature. In this calculation, we mainly investigate the performance of UNIQUAC and NRTL models under high temperature, using temperature dependent parameters rather than using the original formulas. the other feature of this calculation is that we try to relate the excess Gibbs energy G{sup E}and enthalpy of mixing H{sup E}simulta… more
Date: February 20, 1999
Creator: Kabadi, Vinayak N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Heavy-Section Steel Irradiation (HSSI) Program (W6953) Monthly Letter Status Report - January 2001 - ORNL/HSSI (6953) MLSR-2001/4

Description: This report is issued monthly by the staff of the Heavy-Section Steel Irradiation (HSSI) Program (JCN:W6953) to provide the Nuclear Regulatory Commission (NRC) staff with summaries of technical highlights, important issues, and financial and milestone status within the program. This report gives information on several topics corresponding to events during the reporting month: (1) overall project objective, (2) technical activities, (3) meetings and trips, (4) publications and presentations, (5)… more
Date: February 20, 2001
Creator: Rosseel, T. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An investigation of the resistance rise and power fade in high-power Li-ion cells.

Description: Two different cell chemistries, Gen 1 and Gen 2, were subjected to accelerated aging experiments. In Gen 1 calendar-life experiments, useful cell life was strongly affected by temperature and time. Higher temperatures accelerated the degradation of cell performance. The rates of resistance increase and power fade followed simple laws based on a power of time and Arrhenius kinetics. The data have been modeled using these two concepts, and the calculated data agree well with the experimental valu… more
Date: February 20, 2002
Creator: Bloom, I.; Jones, S. A.; Battaglia, V. S.; Polzin, E. G.; Henriksen, G. L.; Motloch, C. G. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

2002 Wastewater Land Application Site Performance Reports for the Idaho National Engineering and Environmental Laboratory

Description: The 2002 Wastewater Land Application site Performance Reports for the Idaho National Engineering and Environmental Laboratory describe site conditions for the facilities with State of Idaho Wastewater Land Application Permits. Permit-required monitoring data are summarized, and permit exceedences or environmental impacts relating to the operation of the facilities during the 2002 permit year are discussed.
Date: February 20, 2003
Creator: Meachum, T. R. & Lewis, M. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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