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Kilowatt Isotope Power System: component test procedure for the ground demonstration system jet condenser focusing. 77-KIPS-59. Revision A

Description: This test procedure (No. 404A) provides a detailed description of the verification methods which shall be used in the development program to be conducted on the Kilowatt Isotope Power System (KIPS) Jet Condenser to fulfill the requirements of the Ground Demonstration Test Plan, Section 6.4. This is a revision of Test Procedure No. 404.
Date: March 14, 1978
Partner: UNT Libraries Government Documents Department
open access

Additional information for impact response of the restart safety rods

Description: WSRC-RP-91-677 studied the structural response of the safety rods under the conditions of brake failure and accidental release. It was concluded that the maximum impact loading to the safety rod is 6020 pounds based on conservative considerations that energy dissipation attributable to fluid resistance and reactor superstructure flexibility. The staffers of the Defense Nuclear Facility Safety Board reviewed the results and inquired about the extent of conservatism. By request of the RESTART tea… more
Date: October 14, 1991
Creator: Yau, W. W. F.
Partner: UNT Libraries Government Documents Department
open access

Quantitative study of mixing in annular and raschig ring filled tanks

Description: A quantitative study of mixing, which utilized the exit age distribution theory, has been completed for bench-scale annular and raschig ring filled tanks, in addition to a pilot-scale annular tank. A study of mixing and fluid flow in a full-scale, single-entry, raschig ring filled tank also was initiated. Results showed the bench-scale raschig ring filled tank approached plug-flow (no mixing) behavior. In a bench-scale annular tank, regardless of whether fluid entered tangentially or nontangent… more
Date: July 14, 1980
Creator: Fredrickson, M. A.
Partner: UNT Libraries Government Documents Department
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OTEC cold water pipe design for problems caused by vortex-excited oscillations

Description: Vortex-excited oscillations of marine structures result in reduced fatigue life, large hydrodynamic forces and induced stresses, and sometimes lead to structural damage and to diestructive failures. The cold water pipe of an OTEC plant is nominally a bluff, flexible cylinder with a large aspect ratio (L/D = length/diameter), and is likely to be susceptible to resonant vortex-excited oscillations. The objective of this report is to survey recent results pertaining to the vortex-excited oscillati… more
Date: March 14, 1980
Creator: Griffin, O. M.
Partner: UNT Libraries Government Documents Department
open access

Modeling of water spraying of field releases of hydrogen fluoride

Description: The effectiveness of water sprays to absorb HF releases has been recently demonstrated by extended laboratory and field tests. In this paper computer simulations are presented of the Hawk, Nevada Test Site, series of field tests, along with parametric studies of several cases which have not been studied in the field. The model used in these simulations, HFSPRAY, treats the gas-phase as an Eulerean fluid whereas the spray is described according to the Lagrangian approach by a finite number of dr… more
Date: October 14, 1990
Creator: Fthenakis, V.M. (Brookhaven National Lab., Upton, NY (United States)); Schatz, K.W. (Mobil Research and Development Corp., Princeton, NJ (United States)) & Zakkay, V. (New York Univ., NY (United States). Dept. of Applied Science)
Partner: UNT Libraries Government Documents Department
open access

Metal-containing plasma-polymerized coatings for laser-fusion targets

Description: Addition of metal to plastic layers in some direct drive laser fusion targets is needed to reduce electron induced fuel preheat. A plasma polymerization coating system was constructed to produce a metal seeded polymer by adding an organometallic gas to the usual trans-2-butene and hydrogen feedstocks. Since organometallic gases are highly reactive and toxic, safety is a major concern in the design of a coating system. Our coating apparatus was designed with three levels of containment to assure… more
Date: September 14, 1981
Creator: Letts, S. A. & Jordan, C. W.
Partner: UNT Libraries Government Documents Department
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Oscillating liquid flow ICF Reactor

Description: Oscillating liquid flow in a falling molten salt inertial confinement fusion reactor is predicted to rapidly clear driver beam paths of residual liquid droplets. Oscillating flow will also provide adequate neutron and x-ray protection for the reactor structure with a short (2-m) fall distance permitting an 8 Hz repetition rate. A reactor chamber configuration is presented with specific features to clear the entire heavy-ion beam path of splashed molten salt. The structural components, including… more
Date: December 14, 1990
Creator: Petzoldt, R.W.
Partner: UNT Libraries Government Documents Department
open access

Transient two-dimensional flow in porous media

Description: The transient flow of an isothermal ideal gas from the cavity formed by an underground nuclear explosion is investigated. A two-dimensional finite element method is used in analyzing the gas flow. Numerical results of the pressure distribution are obtained for both the stemming column and the surrounding porous media.
Date: September 14, 1979
Creator: Sharpe, L. Jr.
Partner: UNT Libraries Government Documents Department
open access

Geothermal reservoir engineering computer code comparison and validation using the GEONZ simulator program

Description: It was originally proposed to use the GEOTHERM geothermal simulator program to prepare solutions to the first five of the six Department of Energy computer code comparison sets. Valid solutions were anticipated in all of the five problems attempted, but it was expected that problems 3 and 4 might present some difficulties. A more recent version of the program, called GEONZ became available and was used successfully on problems 3 and 4. The new program, GEONZ, had additional capabilities that en… more
Date: November 14, 1980
Creator: Horne, R.N.; Ogbe, D.O.; Temeng, K. & Ramey, H.J. Jr.
Partner: UNT Libraries Government Documents Department
open access

Thermowell flow-induced vibrations measured in laboratory and FFTF plant piping

Description: This paper describes the various laboratory and field tests conducted to assure that flow-induced vibrations do not exist in the piping thermowells of the Fast Flux Test Facility. FFTF thermowells are subjected to a wide range of flowing sodium velocities during testing and operation. Early design work indicated a need to provide special attention to thermowell response in the drag direction at the higher sodium flow rates associated with FFTF testing. The results of this study provide some add… more
Date: January 14, 1980
Creator: Bartholf, L.W.
Partner: UNT Libraries Government Documents Department
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Flow through three-dimensional arrangements of cylinders with alternating streamwise planar tilt. Final report, ending September 1993

Description: In this report, fluid flow through a three-dimensional model for the fibrous filters is examined. In this model, the three-dimensional Stokes equation with the appropriate periodic boundary conditions is solved using the finite volume method. In addition to the numerical solution, we attempt to model this flow analytically by using the two-dimensional extended analytic solution in each of the unit cells of the three-dimensional structure. Particle trajectories computed using the superimposed an… more
Date: September 14, 1993
Creator: Sahraoui, M.; Marshall, H. & Kaviany, M.
Partner: UNT Libraries Government Documents Department
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A report to the Department of Energy on studies of complexity in fluid systems

Description: The objective of this project is to bring together researchers from several disciplines who share an interest in studying the development of complexity in fluid systems. The researchers involved have expertise in mathematics, numerical computation, and theoretical and experimental physics. There are three main subjects: the mathematical and phenomenological approaches to turbulence; the development of singularities in fluid flow, most particularly in the motion of interfaces also mathematical a… more
Date: January 14, 1994
Creator: Constantin, P.; Dupont, T. F.; Kadanoff, L. P. & Nagel, S.
Partner: UNT Libraries Government Documents Department
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Project CLEER: A study of the heat transfer characteristics of a capillary wetted surface

Description: An experimental program (Project Cleer) was initiated to investigate the heat transfer characteristics of a surface covered with a wick-like material and cooled by a capillary liquid. The preliminary heat transfer analyses developed and the measuring equipment and methods to be used are discussed. (LCL)
Date: May 14, 1968
Creator: Van Sant, J. H.
Partner: UNT Libraries Government Documents Department
open access

Two-phase-flow cooling concept for fusion reactor blankets

Description: The new two-phase heat transfer medium proposed is a mixture of potassium droplets and helium which permits blanket operation at hih temperature and low pressure, while maintaining acceptable pumping power requirements, coolant ducting size, and blanket structure fractions. A two-phase flow model is described. The helium pumping power and the primary heat transfer loop are discussed. (MOW)
Date: January 14, 1977
Creator: Bender, D. J. & Hoffman, M. A.
Partner: UNT Libraries Government Documents Department
open access

At-line benzene monitor for measuring benzene in precipitate hydrolysis aqueous

Description: A highly accurate and repeatable at-line benzene monitor (ALBM) has been developed to measure the benzene concentration in precipitate hydrolysis aqueous (PHA) in the DWPF. This analyzer was conceived and jointly developed within SRTC by the Analytical Development and the Defense Waste Process Technology Sections with extensive support from the Applied Statistics Group and the TNX Operations Section. It is recommended that an ALBM specifically adapted to DWPF analytical requirements be used to … more
Date: October 14, 1992
Creator: Jenkins, W. J.
Partner: UNT Libraries Government Documents Department
open access

Additional information for impact response of the restart safety rods

Description: WSRC-RP-91-677 studied the structural response of the safety rods under the conditions of brake failure and accidental release. It was concluded that the maximum impact loading to the safety rod is 6020 pounds based on conservative considerations that energy dissipation attributable to fluid resistance and reactor superstructure flexibility. The staffers of the Defense Nuclear Facility Safety Board reviewed the results and inquired about the extent of conservatism. By request of the RESTART tea… more
Date: October 14, 1991
Creator: Yau, W. W. F.
Partner: UNT Libraries Government Documents Department
open access

Multiscale framework for predicting the coupling between deformation and fluid diffusion in porous rocks

Description: In this project, a predictive multiscale framework will be developed to simulate the strong coupling between solid deformations and fluid diffusion in porous rocks. We intend to improve macroscale modeling by incorporating fundamental physical modeling at the microscale in a computationally efficient way. This is an essential step toward further developments in multiphysics modeling, linking hydraulic, thermal, chemical, and geomechanical processes. This research will focus on areas where sever… more
Date: December 14, 2012
Creator: Andrade, José E & Rudnicki, John W
Partner: UNT Libraries Government Documents Department
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EBS Radionuclide Transport Abstraction

Description: The purpose of this report is to develop and analyze the engineered barrier system (EBS) radionuclide transport abstraction model, consistent with Level I and Level II model validation, as identified in Technical Work Plan for: Near-Field Environment and Transport: Engineered Barrier System: Radionuclide Transport Abstraction Model Report Integration (BSC 2005 [DIRS 173617]). The EBS radionuclide transport abstraction (or EBS RT Abstraction) is the conceptual model used in the total system perf… more
Date: July 14, 2006
Creator: Prouty, J.
Partner: UNT Libraries Government Documents Department
open access

Intercellular Genomics of Subsurface Microbial Colonies

Description: This report summarizes progress in the second year of this project. The objective is to develop methods and software to predict the spatial configuration, properties and temporal evolution of microbial colonies in the subsurface. To accomplish this, we integrate models of intracellular processes, cell-host medium exchange and reaction-transport dynamics on the colony scale. At the conclusion of the project, we aim to have the foundations of a predictive mathematical model and software that capt… more
Date: February 14, 2007
Creator: Ortoleva, Peter; Tuncay, Kagan; Gannon, Dennis & Meile, Christof
Partner: UNT Libraries Government Documents Department
open access

Final Technical Report on Grant DE-FG03-00ER15114

Description: The research under this grant has focused on three-dimensional numerical simulations, as well as on computational linear stability analysis. In the following, our main results for each of those areas will be described separately. In addition, copies of reprints are attached with this report.
Date: February 14, 2005
Creator: Meiburg, Eckart
Partner: UNT Libraries Government Documents Department
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