475 Matching Results

Search Results

Results: 1 - 24 next
open access

HEAT RELEASE IN NUCLEAR REACTORS

Description: Discussions are included on energy sources and modes of local deposition of heat, fission fragment and BETA decay energy, neutron energy, energy release by BETA decay of activated nuclei, neutron flux distribution, gamma heating calculations, and integration of the gamma heating equation for simple cases. (M.H.R.)
Date: October 1, 1956
Creator: Alexander, L.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fast Reactor Physics Calculations

Description: Multigroup diffusion theory calculations performed in connection with the fast power breeder reactor development program at Argonne are summarized. The problems investigated relate to: steady-state properties- longterm changes; reactivity coefficients associated with temperature changes; effectiveness of various control methods; evaluation of neutron lifetime; various methods of radial power flattening; various parametric studies to determine optimum design points; accuracy of diffusion theory … more
Date: January 1, 1956
Creator: Avery, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hazards summary memorandum: Savannah River reactors the production of tritium using tubular fuel elements

Description: The Savannah River reactors were operated initially for the production of plutonium, and used slug-type natural uranium fuel elements. Recently one reactor was converted to the production of tritium, and other reactors will be converted soon. slug-type elements (of enriched uranium-aluminum) were charged into this reactor in order to reduce to a minimum the development effort required before the shift to tritium was made. It was recognized, however, that the slug elements would be deficient in … more
Date: September 1, 1956
Creator: Babcock, D. F. & Menegus, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Design data summary: Mark VIA fuel elements

Description: This report provides workable summary of the technical information developed to date for the Mark VIA fuel element. The report provides a satisfactory compilation of information for use as a basis for designing facilities for a production process.
Date: June 1, 1956
Creator: Babcock, D. F. & Woodhouse, J. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Natural convection reactor

Description: A previous report described the conceptual design of a plutonium producing reactor that may be characterized as follows: Power output (2000 MW); cooling - (natural convection of light water through the reactor, up through a draft tube to an evaporative cooling pond, then back to the reactor, and fuel (400 to 500 tons of uranium enriched to 1.2% U-235). Because this reactor would be cooled by the natural convection of light water, it is believed that the construction costs would be significantly… more
Date: May 1, 1956
Creator: Babcock, D. F.; Bernath, L.; Menegus, R. L. & Ring, H. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Photosynthetic Cycle and Respiration: Ligh-DarkTransients

Description: Studies of the transient changes in radiocarbon found in various photosynthetic and respiratory intermediates in Scenedesmus, which result when changing from a condition of steady-state photosynthesis in the light to dark and then back to light again, indicate the following metabolic mechanisms: (a) The carboxylation step in the carbon-reduction cycle of photosynthesis results in the formation of two molecules of 3-PGA from one RuDP molecule, one CO{sub 2}, and one H{sub 2}O: (b) This carboxyla… more
Date: March 1, 1956
Creator: Bassham, James A.; Shibata, Kazuo; Steenberg, Kjell; Bourdon,Jean & Calvin, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

MTR Fuel Elements Containing Plates With Pu-Al Alloy

Description: The first group of Pu--Al MTR fuel elements fubricated were rejected for excessive dimensions and blistering. The fuel element constitution and fubrication was reviewed, and a new Pu--Al ratio and revised rolling techniques were suggested. (D.E.B.)
Date: August 1, 1956
Creator: Beaver, R. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Heat transfer burnout of Mark VIII fuel

Description: The operating conditions to which the special Mark VIII quatrefoils will be exposed during the proposed piloting program have been compared with the conditions required to cause burnout, using an established method of calculating these conditions. The results of this comparison permit the following conclusions to be drawn: (1) With normal flow of coolant through the special elements the heat flux to be encountered in the R-8 cycle (1400 MW) will be 70% or that required to cause burnout (30% mar… more
Date: August 1, 1956
Creator: Bernath, L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An investigation of the aerodynamic characteristics at transonic Mach numbers of a swept-wing supersonic bomber configuration

Description: Report presenting an investigation of the aerodynamic characteristics of a swept-wing supersonic bomber configuration conducted in the 8-foot transonic tunnel. The wing had an aspect ratio of 3.5, taper ratio of 0.2, 47 degrees of sweepback of the 0.25-chord line, and airfoil sections which were 5.5 percent thick parallel to the plane of symmetry. Results regarding the longitudinal force characteristics, effects of wing incidence, a modified wing, various auxiliary wing devices, and horizontal-… more
Date: February 1, 1956
Creator: Bielat, Ralph P. & Cooper, J. Lawrence
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Investigation at Transonic Speeds of the Effects of Inlet Lip Stagger on the Internal-Flow Characteristics of an Unswept Semielliptical Air Inlet

Description: Report presenting an investigation in the transonic blowdown tunnel to determine the effects of variations in inlet lip swagger from 0 to 60 degrees on the internal-flow characteristics of an unswept semielliptical scoop-type air-inlet model without boundary-layer control. Tests were made for a range of Mach numbers and mass-flow ratios. Results regarding the flow over the fuselage nose, total-pressure recovery at inlet, flow distortions at inlet, and inlet-design considerations are presented.
Date: May 1, 1956
Creator: Bingham, Gene J. & Trescot, Charles D., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen