194 Matching Results

Search Results

prev Results: 49 - 72 next
open access

Effect of Design Variables on Performance of Mach 4.0 Hydrogen Expansion Engines

Description: Memorandum presenting performance calculations for hypothetical hydrogen expansion engines in which only a small part of the engine airflow passes through the heat exchanger. The flight path was representative of those for long-range, high-speed aircraft. Results regarding the off-design operation and engine performance are provided.
Date: July 22, 1958
Creator: Dugan, James F., Jr.
Partner: UNT Libraries Government Documents Department
open access

Effect of Design Variables on Performance of Mach 4.0 Hydrogen Expansion Engines

Description: Memorandum presenting performance calculations made for hypothetical hydrogen expansion engines in which only a small part of the engine airflow passes through the heat exchanger. The prescribed flight path was representative of those for long-range, high-speed aircraft. Results regarding the off-design operation and engine performance are provided.
Date: July 22, 1958
Creator: Dugan, James F., Jr.
Partner: UNT Libraries Government Documents Department
open access

SOLVENT EXTRACTION APPLIED TO REACTOR FUEL PROCESSING FIRST QUARTER CO-OP REPORT

Description: The solvent extraction of thorium with 42.5% TBP in a Decalin diluent was studied in a compound pulse column. The HETS for the extraction section of the column was 4.7 feet. A discussion of the method of gaphical calculations of a compound column is included. (auth)
Date: July 14, 1958
Creator: Dunn, W.E.
Partner: UNT Libraries Government Documents Department
open access

Examination of Factors Affecting the Quality of Vacuum Induction-Melted Uranium

Description: The following report examines primarily water and air factors that affect the quality of vacuum induction-melted uranium, yet follows experiments with other factors such as graphite and zirconium crucibles under dry and wet conditions, usage of hydrogen, oxygen, CO and other subject admitted to determine pressure-time relationships and residual gas compositions, as well as a study of water-gas reaction within the furnace.
Date: July 3, 1958
Creator: Endebrock, Roy W.; Foster, Ellis L. & Dickerson, Ronald F.
Partner: UNT Libraries Government Documents Department
open access

Examination of Factors Affecting the Quality of Vacuum Induction-Melted Uranium

Description: The following report examines primarily water and air factors that affect the quality of vacuum induction-melted uranium, yet follows experiments with other factors such as graphite and zirconium crucibles under dry and wet conditions, usage of hydrogen, oxygen, CO and other subject admitted to determine pressure-time relationships and residual gas compositions, as well as a study of water-gas reaction within the furnace.
Date: July 3, 1958
Creator: Endebrock, Roy W.; Foster, Ellis L. & Dickerson, Ronald F.
Partner: UNT Libraries Government Documents Department
open access

THE EFFECT OF PULSATION ON LIQUID-LIQUID MASS-TRANSFER RESISTANCES

Description: A study of individual mass-transfer resistances in liquid-liquid extraction and the effects on these of such variables as flow rate is presented. A partially miscible system was used in the determination of individual film mass- transfer resistances in a pulsed column and to investigate the effect of pulsed column variables, such as pulse frequency, pulse amplitude, and flow rates, on the individual resistances. (W.L.H.)
Date: July 1, 1958
Creator: Eugenio, M.R.
Partner: UNT Libraries Government Documents Department
open access

Experimental results of tests simulating plugging of a K tube with I & E slugs

Description: The purpose of this report is to present results of an experimental program directed toward determining the degree of protection offered by the Panellit protection system to flow losses to a single process tube containing I & E fuel elements in K reactor.
Date: July 7, 1958
Creator: Fitzsimmons, D. E. & Hesson, G. M.
Partner: UNT Libraries Government Documents Department
open access

Theoretical Studies of the Solidification of Uranium Castings

Description: The evaluation of factors involved in the production of sound uranium castings is the objective of a program of study now in progress. A mathematical model have been developed to calculate the time-temperature relationships in a cylinifical uranium casting during it solidification. Finite-difference equations are used, and the solution is obtained by use of a digital computer. Studies of the effects of such variables as the superheat, rate of pour, mold preheat, mold size, and others are possib… more
Date: July 11, 1958
Creator: Fletcher, Billie L.; Foster, Ellis L., Jr.; Franklin, Charles K.; Lechler, Andrew; Schwartz, Benjamin L. & Dickerson, Ronald F.
Partner: UNT Libraries Government Documents Department
open access

Theoretical Studies of the Solidification of Uranium Castings

Description: Report discussing a method of evaluating factors relevant to the creation of sound uranium castings. From abstract: "A mathematical model has been developed to calculate the time-temperature relationships in a cylindrical uranium casting during its solidification. Finite-difference equations are used, and the solution is obtained by use of a digital computer."
Date: July 11, 1958
Creator: Fletcher, Billie L.; Foster, Ellis L., Jr.; Franklin, Charles K.; Lechler, Andrew; Schwartz, Benjamin L. & Dickerson, Ronald F.
Partner: UNT Libraries Government Documents Department
open access

Low-speed experimental determination of the effects of leading-edge radius and profile thickness on static and oscillatory lateral stability derivatives for a delta wing with 60 degrees of leading-edge sweep

Description: Report presenting an investigation to determine the effects of leading-edge radius and profile thickness on the oscillatory lateral stability derivatives for a series of delta wings with 60 degrees of leading-edge sweep. The wings were oscillated in yaw about their vertical axes. Results indicated that there were noticeable decreases in all the derivatives due to increase in leading-edge radius at angles of attack above approximately 12 degrees.
Date: July 1958
Creator: Fletcher, Herman S.
Partner: UNT Libraries Government Documents Department
open access

Effects of Boattail Area Contouring and Simulated Turbojet Exhaust on the Loading and Fuselage-Tail Component Drag of a Twin-Engine Fighter-Type Airplane Model

Description: "An investigation of a twin-engine fighter-type airplane model has been conducted in the Langley 16-foot transonic tunnel to determine the effect on drag of a fuselage volume addition incorporating streamline contouring and more extensive boattailing of the engine shrouds. The effect of hot exhausts from the turbojet engines was simulated with hydrogen peroxide gas generators using scaled nonafterburning engine nozzles. Afterbody pressure distributions, base drag coefficients, and forces on the… more
Date: July 14, 1958
Creator: Foss, Willard E., Jr.; Runckel, Jack F. & Lee, Edwin E., Jr.
Partner: UNT Libraries Government Documents Department
open access

Wind-tunnel investigation of the high-subsonic static longitudinal stability characteristics of several wing-body configurations designed for high lift-drag ratios at a Mach number of 1.4

Description: Report presenting testing in the high-speed 7- by 10-foot tunnel to investigate the high-subsonic static longitudinal stability characteristics and lift-drag ratios of several wing-body models designed to provide high lift-drag ratios at Mach number 1.4. The basic configuration had a thin highly swept wing of aspect ratio 2.91 with NACA 65-A series airfoil sections. Results regarding longitudinal stability, lift, drag, and lift-drag ratio are provided.
Date: July 1958
Creator: Fournier, Paul G.
Partner: UNT Libraries Government Documents Department
open access

Casting Uranium-5 W/O Zirconium-1.5 w/o Niobium Alloys Into Zirconium and Zircaloy-2 Containers

Description: A series of experimental castings have been made with the object of exploring the proposition that uranium and high uranium alloys could be bonded to zirconium and zirconium alloys by a direct casting method. Unalloyed uranium and uranium alloyed with 5 wt. % Zr and 1.5 wt. % Nb have been cast into zirconium and Zircaloy-2 molds of vsrious shpes and sizes. Castings made in cans of circular cross section were well bonded and sound, provided the molds were outgassed at elevated temperature before… more
Date: July 1958
Creator: Frank, J. W. & Macherey, R. E.
Partner: UNT Libraries Government Documents Department
open access

Statistical Study of Turbulence: Spectral Functions and Correlation Coefficients

Description: "In reading the publications on turbulence of different authors, one often runs the risk of confusing the various correlation coefficients and turbulence spectra. We have made a point of defining, by appropriate concepts, the differences which exist between these functions. Besides, we introduce in the symbols a few new characteristics of turbulence" (p. 1).
Date: July 1958
Creator: Frenkiel, Francois N.
Partner: UNT Libraries Government Documents Department
open access

Annual Report ONR Project a-2049. Interim Report

Description: The objective of this program is to conduct a broad basic program of analytical and experimental research into the fundamental behavior of gas- lubricated bearings and to establish general design criteria for these bearings. The work to date has included both theoretical and experimental phases of hydrodynamic and hydrastatic lubrication phenomena, supplemented by a digital computer program. (W. L.H.)
Date: July 15, 1958
Creator: Fuller, D. D.
Partner: UNT Libraries Government Documents Department
open access

COMMENTS ON GCR FUEL ELEMENT DESIGN

Description: Criteria are presented in an effort to develop a basis for judging fuel element shapes for gas cooled reactors. Included are discussions of fabricability, surface to volume ratio, structural suitability, internal and external thermal paths, and thermal stability of structure. Diagrams of various configurations are also included along with a numbered comparison of the merits of each (J.R.D.)
Date: July 10, 1958
Creator: Furgerson, W.T.
Partner: UNT Libraries Government Documents Department
open access

Temperatures From Underground Detonation, Shot Rainier

Description: The results of temaperature measuring experiments conducted for Rainier shot, Operation Plumbbob are described, The temperature distribution in the surrounding tuff resulting from the detonation of an underground nuclear device yielding 1.7 kilotons of energy has been measured, Data indicate peak temperatures in the vicinity or 90 deg existing in the central regions which drop rapidly to approach ambient temperatures at distances of about l80 feet from the original ground zero, Based on measure… more
Date: July 1, 1958
Creator: Goodale, T. C.; Ragent, B.; Samuel, A. H.; Anderson, A. L.; Nielsen, D. E. & Olsen, J. L.
Partner: UNT Libraries Government Documents Department
open access

Analog Computer Study of the Operation of the Gas-Cooled Loop on the Oak Ridge Research Reactor

Description: An annlog computer study of the ORR gas-cooled loop was made. The effects on fuel and gas temperatures of changing gas (nitrogen) flow rates, turning the heater on and off, and inserting or removing the fuel were determined. It was found that the temperature of the sample, if fuel, could be raised more rapidly than it could be reduced, and that the temperature could be reduced faster with high rates of flow. All of the equations used in building up the computer are given, and some of them are d… more
Date: July 1, 1958
Creator: Green, F. P.; Neill, F. H.; Short, B. E. & Winton, M. L.
Partner: UNT Libraries Government Documents Department
open access

Quarterly Report of the Solution Corrosion Group for the Period Ending July 31, 1958

Description: 6 6 5 4 ; 6 6 5 6 4 8 4 : the chemica: stability of possible fuel solutions, and the results obtained from these runs have been compared with data obtained by others. A solution containing 0.04 m UO/sub 2/SO/ sub 4/, 0.03 m CuSO/sub 4/, 0.03 m NiSO/sub 4/, and 0.023 m D/sub 2/SO/sub 4/ in heavy water was not completely stable at 175 deg C or at other higher temperatures. About 7% of the copper was lost at 175 to 275 deg C, and an additional 9% was lost when the temperature was increased to 300 … more
Date: July 31, 1958
Creator: Griess, J. C.; Savage, H. C.; Greeley, R. S.; English, J. L.; Bolt, S. E.; Buxton, S. R. et al.
Partner: UNT Libraries Government Documents Department
open access

Altitude Performance of the Afterburner on the Iroquois Turbojet Engine. Coord. No. AF-P-6

Description: "The performance and operational characteristics of two afterburner configurations for the Iroquois turbojet engine were evaluated in an altitude test chamber over a range of afterburner equivalence ratios at afterburner-inlet pressures from 733 to 3186 pounds per square foot absolute. These conditions correspond to an altitude range from 38,700 to 66,800 feet at a flight Mach number of 1.5. The only difference between the two afterburner configurations was in the pattern of afterburner fuel in… more
Date: July 28, 1958
Creator: Groesbeck, Donald E. & Peters, Daniel J.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen