422 Matching Results

Search Results

Results: 1 - 24 next
open access

Construction of a Large Transverse Electromagnetic Cell

Description: Report issued by the U.S. National Bureau of Standards discussing the construction of large electromagnetic cells. As stated in the introduction, "this instruction provides information and procedures necessary to fabricate a large transverse electromagnetic (TEM) cell to be used for experimental "electromagnetic interference" (EMI) evaluation studies" (p. 1). This report includes illustrations, and photographs.
Date: February 1979
Creator: Decker, W. F. & Wilson, W. A.
Partner: UNT Libraries Government Documents Department
open access

Unavailability Modeling and Analysis of Redundant Safety Systems

Description: Analytical expressions have been developed to estimate the average unavailability of an m-out-of-n (m/n, 1 less than or equal to m less than or equal to n less than or equal to 4) standby safety system of a nuclear power plant. The expressions take into account contributions made by testing, repair, equipment failure, human error, and different testing schemes. A computer code, ICARUS, has been written to incorporate these analytical equations. The code is capable of calculating the average una… more
Date: October 1979
Creator: Argonne National Laboratory. Reactor Analysis and Safety Division.
Partner: UNT Libraries Government Documents Department
open access

A Quasi-Eulerian Method for Analyzing Slug Impact and Coolant Spillage in a Fast-Reactor Accident

Description: This report describes a quasi-Eulerian method which has been incorporated into the ICECO code to study slug impact and coolant spillage problems in a fast-reactor accident. The quasi-Eulerian cells used in this method are located on the tops of the regular cells. The axial size of the quasi-Eulerian cells varies according to the gap generated at the reactor head-wall junction. Penetration holes on the cover head are modeled on the top center of the quasi-Eulerian cells. Fluid variables in these… more
Date: December 1979
Creator: Chu, Han Y.
Partner: UNT Libraries Government Documents Department
open access

LIMBO Computer Code for Analyzing Coolant-Voiding Dynamics in LMFBR Safety Tests

Description: The LIMBO (liquid metal boiling) code for the analysis of two-phase flow phenomena in an LMFBR reactor coolant channel is presented. The code uses a non-equilibrium, annular, two-phase flow model, which allows for slip between the phases. Furthermore, the model is intended to be valid for both quasi-steady boiling and rapid coolant voiding of the channel. The code was developed primarily for the prediction of, and the posttest analysis of, coolant-voiding behavior in the SLSF P-series in-pile s… more
Date: October 1979
Creator: Bordner, G. L.
Partner: UNT Libraries Government Documents Department
open access

Effects of Environment on the Low-Cycle Fatigue Behavior of Type 304 Stainless Steel

Description: The low-cycle fatigue behavior of Type 304 stainless steel has been investigated at 593 degrees C in a dynamic vacuum of better than 1.3 x 10⁻⁶ Pa (10⁻⁸ torr). The results concerning the effects of strain range, strain rate and tensile hold time on fatigue life are presented and compared with results of similar tests performed in air and sodium environments. Under continuous symmetrical cycling, fatigue life is significantly longer in vacuum than in air; in the low strain range regime, the effe… more
Date: December 1979
Creator: Argonne National Laboratory. Materials Science Division.
Partner: UNT Libraries Government Documents Department
open access

New Radionuclide Generator Systems for Use in Nuclear Medicine

Description: A current emphasis in nuclear medicine is to better match the physical lifetime of the radionuclides used in vivo for diagnosis and treatment to the biological lifetime of the diagnostic procedure or to minimize radiation dose to areas other than those to be treated. In many cases the biological lifetime is on the order of minutes. Since the direct production of radionuclides with half lives of minutes requires the user to be near a suitable reactor or accelerator, this study was undertaken to … more
Date: 1979
Creator: Atcher, Robert Whitehill
Partner: UNT Libraries Government Documents Department
open access

Sodium Hydride Precipitation in Sodium Cold Traps

Description: A series of experiments have been performed to test a calculational model for precipitation of NaH in sodium cold traps. The calculational model, called ACTMODEL, is a computer simulation that uses the system geometry and operating conditions as input to calculate a mass-transfer coefficient and the distribution of NaH in a cold trap. The ACTMODEL was tested using an analytical cold trap (ACT) that is simple and essentially one-dimensional. The ACT flow and temperature profile can be controlled… more
Date: 1979?
Creator: Argonne National Laboratory. Chemical Engineering Division.
Partner: UNT Libraries Government Documents Department
open access

Design of a System using CPC Collectors to Collect Solar Energy and to Produce Industrial Process Steam

Description: A system has been designed to use CPC collectors to collect solar energy and to generate steam for industrial process heat purposes. The system is divided into two loops with the collectors in the collector loop to operate a pre-heater and the collectors in the boiler loop to heat water to elevated pressures and temperatures. A flash boiler is used to throttle the heated water to steam. Two types of CPC collectors are chosen. In the collector loop the CPC collectors are fitted with concentric t… more
Date: August 1979
Creator: Argonne National Laboratory. Solar Energy Group.
Partner: UNT Libraries Government Documents Department
open access

Nondestructive Evaluation Techniques for Silicon Carbide Heat-Exchanger Tubes : Second Annual Report, October 1978-September 1979

Description: This report discusses the development of ultrasonic testing, acoustic microscopy, dye-enhanced radiography, holographic interferometry, and infrared scanning techniques for flaw detection in silicon carbide (SiC) heat-exchanger tubing. Both preservice and in-service testing requirements are discussed. An ultrasonic boreside probe and an acoustic microscope stage have been designed for continuous monitoring of SiC tubing. Preliminary results with these acoustic systems are presented. In addition… more
Date: November 1979
Creator: Kupperman, D. S.; Yuhas, D.; Deininger, W. & Sciammarella, Cesar A.
Partner: UNT Libraries Government Documents Department
open access

Finite-Element Method for Above-Core Structures

Description: Three-dimensional finite-element models for the treatment of the nonlinear, transient response of a fast breeder reactor's above-core structures are described. For purposes of treating arbitrarily large rotations, node orientations are described by unit vectors and the deformable elements are treated by a corotational formulation in which the coordinate system is embedded in the elements. Deformable elements may be connected either to nodes directly or through rigid bodies. The time integration… more
Date: December 1979
Creator: Kennedy, J. M. & Belytschko, Ted B.
Partner: UNT Libraries Government Documents Department
open access

Radiological and Environmental Research Division Annual Report: Part 1, Fundamental Molecular Physics and Chemistry, October 1978-September 1979

Description: Annual report of the Argonne National Laboratory Radiological and Environmental Research Division regarding activities related to molecular physics and chemistry. This report summarizes work on the chemical physics of atoms and molecules, especially their interaction with external agents such as photons and electrons.
Date: 1979?
Creator: Argonne National Laboratory. Radiological and Environmental Research Division.
Partner: UNT Libraries Government Documents Department
open access

Radiological and Environmental Research Division Annual Report: Part 2, Center for Human Radiobiology, July 1978-June 1979

Description: Annual report of the Argonne National Laboratory Radiological and Environmental Research Division regarding activities related to the Center for Human Radiobiology. This report discusses studies on radium dial painters and other persons with industrial or medical exposure to intake of radium.
Date: 1979?
Creator: Argonne National Laboratory. Radiological and Environmental Research Division.
Partner: UNT Libraries Government Documents Department
open access

Radiological and Environmental Research Division Annual Report: Part 4, Atmospheric Physics, January-December 1979

Description: Annual report of the Argonne National Laboratory Radiological and Environmental Research Division regarding activities related to atmospheric physics. This report discusses programs involving air pollutants, and the dry deposition of airborne particles and trace gases.
Date: 1979?
Creator: Argonne National Laboratory. Radiological and Environmental Research Division.
Partner: UNT Libraries Government Documents Department
open access

Fuel Cycle Programs, Quarterly Progress Report: July-September 1979

Description: Quarterly report of the Argonne National Laboratory Chemical Engineering Division regarding activities related to properties and handling of radioactive materials, operation of nuclear reactors, and other relevant research.
Date: 1979
Creator: Steindler, M. J.; Couture, R. A.; Flynn, K. F.; Jardine, L. J.; Mecham, W. J.; Seitz, M. G. et al.
Partner: UNT Libraries Government Documents Department
open access

Physics Division Annual Review: 1 April 1979 -31 March 1980

Description: The Physics Division's program in nuclear physics covers a broad span of activities within that discipline. The object of this research is to understand the properties of atomic nuclei, their structure and the mechanisms of nuclear reactions. Work is carried out under a variety of subprograis: theory, heavy-ion physics, medium-energy physics and nuclear research.
Date: 1979?
Creator: Schiffer, John P.
Partner: UNT Libraries Government Documents Department
open access

Materials Technology for Coal-Conversion Processes Quarterly Report: April-June 1979

Description: Quarterly report on the activities of the Argonne National Laboratory Materials Science Division regarding economical conversion of coal into clean and usable fuels through the use of durable materials systems. This project is designed to provide part of the materials information necessary for successful operation of coal-conversion systems.
Date: November 1979
Creator: Argonne National Laboratory. Materials Science Division.
Partner: UNT Libraries Government Documents Department
open access

An Analytical Study of the Feasibility of Irradiating U233/Th232 Metal Fuel Experiments in EBR-II

Description: Recent concerns about the proliferation and diversion of plutonium have lead to reconsideration of Uranium-233/Thorium-232 fuel cycles. Although thorium fuels have been studied earlier, much of that work is incomplete; consequently, additional irradiation studies will be necessary.
Date: 1979?
Creator: Foltman, A. J. & Meneghetti, D.
Partner: UNT Libraries Government Documents Department
open access

Migration of Uranium Process Wastes from the Uranium-233--Thorium-232 Cycle

Description: With the advent of fuel loadings of uranium-233 in the Shippingport Reactor, it has become important to understand the migratory behavior of uranium. The purpose of this study is the determination of the parameters influencing the migration of uranium(VI), the most likely chemical form of uranium to be mobilized from a repository. Samples of rhyolite tuff were used to measure the absorption coefficients of solutions of uranium (VI) in ground waters. In addition, columns of tuff were used to mea… more
Date: 1979?
Creator: Fried, Sherman; Sabau, Carmen; Hines, John & Friedman, Arnold
Partner: UNT Libraries Government Documents Department
open access

Development of a MK-II Loop to Simulate Reactor Hydraulic Conditions

Description: The Mk-IIC Integral Loop was modified to provide an in-pile experimental apparatus that would simulate the subassembly coolant flow rate and inlet pressure head of the Fast Test Reactor (FTR). There were two main design changes. First, the safety dump tanks were removed from the Mk-IIC loop and replaced by a second annular linear induction pump (ALIP). Second, a flow restricting orifice was sized so that the hydraulic requirements of prototypical test-section coolant velocity and pressure head … more
Date: January 1979
Creator: Page, R. J. & Robinson, L. E.
Partner: UNT Libraries Government Documents Department
open access

HYCSOS : A Chemical Heat Pump and Energy Conversion System Based on Metal Hydrides

Description: The current status of the HYCSOS chemical heat pump and energy conversion system based on metal hydrides is described. Heat transfer fluid loops were insulated and modified for isothermal operation. Software development for HYCSOS manual mode operation was completed. Routines to handle data acquisition, logging, compression, correction and plotting, using a Tektronix Graphics system with flexible disk data storage, provide a rapid and versatile means of presenting HYCSOS data for analysis. Adva… more
Date: April 1979
Creator: Sheft, Irving; Gruen, Dieter M. & Lamich, George
Partner: UNT Libraries Government Documents Department
open access

Evaluating Computer Program Performance on the CRAY-1

Description: The Advanced Scientific Computers Project of Argonne's Applied Mathematics Division has two objectives: to evaluate supercomputers and to determine their effect on Argonne's computing workload. Initial efforts have focused on the CRAY-1, which is the only advanced computer currently available. Users from seven Argonne divisions executed test programs on the CRAY and made performance comparisons with the IBM 370/195 at Argonne. This report describes these experiences and discusses various techni… more
Date: January 1979
Creator: Rudsinski, Larry & Pieper, Gail W.
Partner: UNT Libraries Government Documents Department
open access

The Status and Development Potential of Plate-Type Fuels for Research and Test Reactors

Description: A program of transient in-reactor experiments is being conducted by Argonne National Laboratory in the Transient Reactor Test (TREAT) facility to guide and support analyses of hypothetical core-disruptive accidents (HCDA) in liquid-metal fast breeder reactors (LMFBR). Test results provide data needed to establish the response of LMFBR cores to hypothetical accidents producing fuel failure, coolant boiling, and the movement of coolant, molten fuel, and molten cladding. These data include margins… more
Date: March 1979
Creator: Stahl, D.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen