UNT Libraries Government Documents Department - 37 Matching Results

Search Results

Results: 1 - 24 next
open access

Chemical Technology Division Annual Technical Report for 1984

Description: Report on studies of advanced batteries, aqueous batteries, advanced fuel cells, coal utilization, methodologies for recovery of energy from municipal waste, solid and liquid desiccants, nuclear technology related to waste management, and physical chemistry of selected materials in environments simulating those of fission, fusion, and other energy systems.
Date: February 1985
Creator: Argonne National Laboratory. Chemical Technology Division.
Item Type: Refine your search to only Report
open access

Comparison of the CRAY X-MP-4, Fujitsu VP-200, and Hitachi S-810/20 : an Argonne Perspective

Description: A set of programs, gathered from major Argonne computer users, was run on the current generation of supercomputers: the CRAY X-MP-4, Fujitsu VP-200, and Hitachi S-810/20. The results show that a single processor of a CRAY X-MP-4 is a consistently strong performer over a wide range of problems. The Fujitsu and Hitachi excel on highly vectorized programs and offer an attractive opportunity to sites with IBM-compatible computers.
Date: October 1985
Creator: Dongarra, J. J. & Hinds, Alan
Item Type: Refine your search to only Report
open access

Decontamination and Decommissioning of the Argonne National Laboratory Building 350 Plutonium Fabrication Facility : Final Report

Description: In 1973, Argonne National Laboratory began consolidating and upgrading its plutonium-handling operations with the result that the research fuel-fabrication facility located in Building 350 was shut down and declared surplus. Sixteen of the twenty-three gloveboxes which comprised the system were disassembled and relocated for reuse or placed into controlled storage during 1974 but, due to funding constraints, full-scale decommissioning did not start until 1978. Since that time the fourteen remai… more
Date: February 1985
Creator: Kline, W. H.; Moe, H. J. & Lahey, T. J.
Item Type: Refine your search to only Report
open access

Experimental Study on Impact/Fretting Wear in Heat Exchanger Tubes

Description: A data bank of field experiences with heat exchanger tube vibration reveals numerous cases of tube failures at, or near, the baffle. The objective of this study is to provide qualitative impact/fretting wear information for heat exchanger tubes through the performance of a series of tests involving the pertinent parameters: impact force level, between the tube and its support; tube to support plate hole clearance; tube support plate thickness; and tube vibration frequency. The characteristics o… more
Date: April 1985
Creator: Cha, J. H.; Wambsganss, M. W. & Jendrzejczyk, J. A.
Item Type: Refine your search to only Report
open access

Extraction and Recovery of Plutonium and Americium from Nitric Acid Waste Solutions by the TRUEX Process : Continuing Development Studies

Description: This report summarizes the work done to date on the application of the TRUEX solvent extraction process for removing and separately recovering plutonium and americium from a nitric acid waste solution containing these elements, uranium, and a complement of inert metal ions. This simulated waste stream is typical of a raffinate from a tributyl phosphate (TBP)-based solvent extraction process for removing uranium and plutonium from dissolved plutonium-containing metallurgical scrap. The TRUEX pro… more
Date: September 1985
Creator: Leonard, R. A.; Vandegrift, G. F.; Kalina, D. G.; Fischer, D. F.; Bane, R. W.; Burris, L. et al.
Item Type: Refine your search to only Report
open access

Fluid Excitation Forces Acting on a Tube Array

Description: Fluid forces are important in the assessment of vibration of the Space Shuttle Main Engine liquid oxygen posts. This report summarizes the available data on fluid excitation forces acting on tube arrays in turbulent crossflow, and test results for an array of tubes subject to turbulent flow. The fluctuating drag and lift forces are measured as a function of Reynolds number, incoming flow conditions, and tube location in an array.
Date: September 1985
Creator: Chen, Shoei-Sheng & Jendrzejczyk, J. A.
Item Type: Refine your search to only Report
open access

Fluid Forces on Two Circular Cylinders in Crossflow

Description: Fluid excitation forces are measured in a water loop for two circular cylinders arranged in tandem and normal to flow. The Strouhal number and fluctuating drag and lift coefficients for both cylinders are presented for various spacings and incoming flow conditions. Results show the effects of Reynolds number, pitch ratio, and upstream turbulence on the fluid excitation forces.
Date: June 1985
Creator: Jendrzejczyk, J. A. & Chen, Shoei-Sheng
Item Type: Refine your search to only Report
open access

General Theory for Dynamic Instability of the SSME LOX Posts

Description: A general theory of fluid-elastic instability for a tube array in crossflow is presented for application to the space shuttle main engine liquid oxygen (SSME LOX) posts. Various techniques to obtain the motion-dependent fluid-force coefficients are discussed and the general instability characteristics are summarized. The theory is also used to evaluate the results of other mathematical models for crossflow-induced instability.
Date: September 1985
Creator: Chen, Shoei-Sheng
Item Type: Refine your search to only Report
open access

Heat Exchanger Vibration Analysis (HXVA) for Prediction of Tube Bundle Instabilities

Description: Pre and postprocessors have been written for an established hydraulic program (COMMIX-IHX) which enables prediction of the internal crossflow field for each tube of Argonne's Test Heat Exchanger and identification of those tubes most likely to experience fluid-elastic instability, together with the instability vibration mode. While the direct use of the HXVA method is limited to single pass, single-segmentally baffled tube bundle configurations, its algorithms and methods can be applied to any … more
Date: May 1985
Creator: Mulcahy, T. M.; Wambsganss, M. W. & Yang, C. I.
Item Type: Refine your search to only Report
open access

Humic Substances in Natural Waters and Their Complexation With Trace Metals and Radionuclides : A Review

Description: Section I introduces the material contained in the rest of the report. Section II presents the origin and characteristics of humic materials as we understand them today and outlines the methods that have been used to separate and analyze these substances. Section III focuses on the general problem of metal-organic interactions and treats some of the factors that are important in chelating and complexing of metal ions by humic substances. Section IV deals specifically with the complexing o… more
Date: July 1985
Creator: Boggs, Sam, Jr.; Livermore, David & Seitz, Martin G.
Item Type: Refine your search to only Report
open access

In-Cell Reaction Rate Distributions and Cell-Average Reaction Rates in Fast Critical Assemblies

Description: Measurements are described for determining average values of fission rates in uranium-235, uranium-238 and plutonium-239 and capture rates in uranium-238 for heterogeneous cells used to construct fast critical assemblies. The measurements are based on irradiations of foils of uranium-238, uranium-235 and plutonium-239 with counting of fission and capture products using gamma-ray spectroscopy. Both plate and pin cells are considered. Procedures are described for inferring cell-average reaction r… more
Date: August 1985
Creator: Brumbach, S. B. & Gasidlo, J. M.
Item Type: Refine your search to only Report
open access

Leakage Flow-Induced Vibration of an Eccentric Tube-in-Tube Slip Joint

Description: Eccentricity of a specific slip-joint design separating two cantilevered, telescoping tubes did not create any self-excited lateral vibrations that had not been observed previously for a concentric slip joint. In fact, the eccentricity made instabilities less likely to occur, but only marginally. Most important, design rules previously established to avoid instabilities for the concentric slip joint remain valid for the eccentric slip joint.
Date: August 1985
Creator: Mulcahy, T. M.
Item Type: Refine your search to only Report
open access

Li-Alloy/FeS Cell Design and Analysis Report

Description: This report contains historical information on the Li-alloy/FeS system that will be useful in its future applications. This document includes the following: (1) the chemical and electrochemical reactions for the Li-alloy/FeS system, accomplishments in past cell development efforts, and performance attained by state-of-the-art cells vs performance goals; (2) detailed drawings of state-of-the-art cell designs, documentation of cell fabrication techniques, and comparisons of alternative types of c… more
Date: July 1985
Creator: Gay, E. C.; Steunenberg, Robert K.; Miller, W. E.; Battles, J. E.; Kaun, T. D.; Martino, F. J. et al.
Item Type: Refine your search to only Report
open access

NNWSI Phase II Materials Interaction Test Procedure and Preliminary Results

Description: The Nevada Nuclear Waste Storage Investigations (NNWSI) project is investigating the volcanic tuff beds of Yucca Mountain, Nevada, as a potential location for a high-level radioactive waste repository. This report describes a test method (Phase II) that has been developed to measure the release of radionuclides from the waste package under simulated repository conditions, and provides information on materials interactions that may occur in the repository. The results of 13 weeks of testing usin… more
Date: January 1985
Creator: Bates, John K. & Gerding, Thomas J.
Item Type: Refine your search to only Report
Back to Top of Screen