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Preliminary design review document application of multi-foil insulation to the Brayton Isotope Power System and conceptual design of multi-foil insulation for the flight system (phase I)

Description: The status of the effort to apply MULTI-FOIL thermal insulation in an effective manner to the Ground Development System (GDS) is reviewed. Heat loss measurements made on cylindrical and elbow heat sources using ''Tape'' and ''Conventional'' MULTI-FOIL indicate that the thermal losses are comparable on a per layer basis. However, use of the tape incurs a weight penalty, per layer, of about 20 percent. The effective thermal emissivity of the nickel layer/zirconia powder MULTI-FOIL is approximatel… more
Date: June 11, 1976
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Safety analysis report for packaging: neutron shipping cask, model 0. 5T

Description: The Safety Analysis Report for Packaging demonstrates that the neutron shipping cask can safely transport, in solid or powder form, all isotopes of uranium, plutonium, americium, curium, berkelium, californium, einsteinium, and fermium. The shipping cask and its contents are described. It also evaluates transport conditions, structural parameters (e.g., load resistance, pressure and impact effects, lifting and tiedown devices), and shielding. Finally, it discusses compliance with Chapter 0529 o… more
Date: June 11, 1976
Creator: Peterson, R. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

University of Utah Direct Contact Geothermal Power Project report. A computer program for determining the thermodynamic properties of water

Description: This program was written to be used as a subroutine. The program determines the thermodynamic properties of water given any of the following pairs of knowns to define a thermodynamic state: pressure and entropy, pressure and enthalpy, pressure and quality, temperature and pressure, or temperature and quality. These five pairs of knowns allow the user to evaluate any thermodynamic cycle using water, as a working fluid. The basic equations came from Keenan, Keyes, Hill and Moore, Steam Tables, Jo… more
Date: June 11, 1976
Creator: Riemer, D. H.; Jacobs, H. R. & Boehm, R. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Heating uranium alloy billets. [0. 75% Ti, 6% Nb, or 7. 5% Nb--2. 5% Zr]

Description: Data were obtained for the surface heat transfer coefficient of uranium and the alloys of uranium-0.75 wt percent titanium, uranium-6 wt percent niobium, and uranium-7.5 wt percent niobium-2.5 wt percent zirconium. Samples were heated to 850/sup 0/C in both a molten salt bath and an argon-purged air furnace, then the samples were cooled in air. Surface heat transfer coefficients were calculated from the experimental data for both heating and cooling of the metals. 4 fig, 4 tables.
Date: June 11, 1976
Creator: Bieber, C. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced waste forms research and development. Annual report

Description: Thermogravimetric analysis on cesium aluminosilicates was performed. Pollucite, CsAlSi/sub 2/O/sub 6/, appears to have more than adequate thermal stability for Cs fixation in supercalcine. The possibility of leaving Ru as RuO/sub 2/ during supercalcine crystallization is being assessed. The apatite solid solution (A/sub ss/) phases used in supercalcine phase formation models have been easily prepared as pure phases. Use of Ca instead of Sr as an alkaline earth additive yields a more stable A/su… more
Date: June 11, 1976
Creator: McCarthy, G. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Why partition nuclear waste

Description: A cursory review of literature dealing with various separatory processes involved in the handling of high-level liquid nuclear waste discloses that, for the most part, discussion centers on separation procedures and methodology for handling the resulting fractions, particularly the actinide wastes. There appears to be relatively little discussion on the incentives or motivations for performing these separations in the first place. Discussion is often limited to the assumption that we must separ… more
Date: June 11, 1976
Creator: Cohen, J. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Survey of applied and computational mathematics at LLL

Description: A summary of current activities in applied and computational mathematics at the Lawrence Livermore Laboratory is given. It is evident from the survey that there is a very broad spectrum of research and development in this area of mathematics. However, only a small percentage of the total effort is directly involved with fundamental research. The Laboratory is advised to adopt a formal policy to establish and support a research program in applied and computational mathematics. Coordination of re… more
Date: June 11, 1976
Creator: Chang, J.; Ekstrom, M. & Fritsch, F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Variable orifice for differential pumping in a vacuum system

Description: In differential pumping, the pumping speed has in the past been controlled by the size of the orifice between the vacuum chamber and the diffusion pump. This fixed orifice is usually in the valve gate of a high-vacuum valve (or in a baffle plate). To change the pumping speed, then, the valve must be removed and another valve with an orifice of a different size must be inserted. This process is time consuming and risks contamination of the system, which would require another pumpdown and bakeout… more
Date: June 11, 1976
Creator: Beeman, R. & Brajkovich, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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