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NPR graphite and fuel temperatures

Description: No Description Available.
Date: October 13, 1958
Creator: Carson, A. B.
Partner: UNT Libraries Government Documents Department
open access

Avoidance of bulk temperature limits 105-D and F

Description: With higher power levels and probably higher river temperatures, the forthcoming warm water season is expected to impose bulk outlet temperature limits, with consequent production losses, on all Hanford reactors to an even greater extent than last year. The problem has received the attention of a number of management and engineering personnel, but the basis for this study was a letter originating in the Production Operation suggesting two alternate schemes for increasing the flow of process wat… more
Date: June 13, 1958
Creator: Corley, J. P.
Partner: UNT Libraries Government Documents Department
open access

Bulk outlet temperature limits and increased reactor power levels

Description: In a recent report, means of circumventing the present bulk temperature limits are suggested. These have definite merit but do not present an over-all picture of the problem. Therefore, this bulk temperature limit is reviewed in order to place the problem in its full perspective. A program of action is suggested that should lead to: Revised operating conditions and process piping to obtain higher power levels at the same bulk outlet temperature; The completion of production tests to permit high… more
Date: June 13, 1958
Creator: Jones, S. S.
Partner: UNT Libraries Government Documents Department
open access

EXPLOSIVE REACTIONS DURING REPROCESSING OF REACTOR FUELS CONTAINING URANIUM AND ZIRCONIUM OR NIOBIUM

Description: Small particles of zirconinm formed during mechancal operations have caused serious industrial explosions. Particles of this type will not be encountered during aqueous chemical reprocessing. However, small panticles of metallic phases rich in zirconium or niobium, produced by selective leaching of a more reactive uranium-rich phase, can enter into violently explosive reactions. The conditions under which explosions with zirconium-bearing alloys may be expected during chemical reprocessing have… more
Date: November 13, 1958
Creator: Gens, T.A.
Partner: UNT Libraries Government Documents Department
open access

HRT MOCKUP IODINE REMOVAL AND RECOMBINER TESTS

Description: Tests have been run in the HRT core system mockup which demonstrate that iodine can be successfully removed from dry steam by a silver bed. Such a bed is recommended to prevent iodine poisoning of the HRT recombiner catalyst. An added advantage will be removal of I/sup 135/ from circulation, whereby reducing neutron losses a Xe/sup 135/, a daughter. Four experiments were made with the silvered Alundum pellets during which experimental mass transfer coefficients were determined. At 110 deg C the… more
Date: January 13, 1958
Creator: Harley, P.H.
Partner: UNT Libraries Government Documents Department
open access

PHASE I--FOREIGN REACTOR FUEL SAMPLE IRRADIATION OF U-S$sub 1$-Al ALLOY. IRRADIATION REQUEST ORNL-MTR-35

Description: The following data summarize the results of calculations presented in this report to determine the irradiation testing for Phase I of Irradiation Request ORNLMTR-35. This phase of the program entails exposure of a 48 wt.% U-3 wt.% Si-49 wt.% Al alloys inthe beryllium reflector of the MTR. (auth)
Date: October 13, 1958
Creator: Leitten, C.F. & Thurber, W.C.
Partner: UNT Libraries Government Documents Department
open access

INVESTIGATION OF EFFECT OF SEAL CONFIGURATION ON MIXING FLOW AND RADIATION DAMAGE IN HRT-TYPE CIRCULATING PUMPS. Supplement No. 1

Description: The effect of seal configuration on the rate of mixing flow between the impeller cavity and the motor cavity of a Westinghouse Model 400 A pump was extended to include a configuration wherein the lower radinl bearing acts as a secondary seal. This arrangement increases the life of the motor windings; however, the life of the lower radial and thrust bearings is shortened because of inadequate cooling. (J.E.D.)
Date: January 13, 1958
Creator: Moyers, J.C.
Partner: UNT Libraries Government Documents Department
open access

Free-Spinning-Tunnel Investigation of a 1/28-Scale Model of the North American FJ-4 Airplane

Description: Report on an investigation to determine the erect and inverted spin and recovery characteristics of a model of the North American FJ-4 airplane. The testing found that either a flat-type of steep-type spin may be obtained when the airplane is spinning erect. The optimum recovery technique from inverted spins was full rudder reversal with simultaneous movement of the ailerons to full with the stick maintained full forward.
Date: January 13, 1958
Creator: Healy, Frederick M.
Partner: UNT Libraries Government Documents Department
open access

Experimental Investigation of Extreme Internal Flow Turning at the Cowl Lip of an Axisymetric Inlet at a Mach Number of 2.95

Description: Memorandum presenting an experimental investigation of the pressure-recovery performance of a fixed-geometry, two-cone, two-drag inlet at Mach number 2.95. Low drag was achieved by use of an internally cylindrical cowl with rapid flow turning that was within 4 degrees of the wedge angle for shock detachment. Results regarding the inlet performance and evaluation of inlet performance are provided.
Date: May 13, 1958
Creator: Weston, Kenneth C. & Kowalski, Kenneth L.
Partner: UNT Libraries Government Documents Department
open access

Free-Flight Aerodynamic-Heating Data at Mach Numbers Up to 10.9 on a Flat-Faced Cylinder

Description: Memorandum presenting a five-stage rocket-propelled model flown up to a Mach number of 10.9 and a corresponding free-stream Reynolds number of 6.57 x 10(exp 6) based on nose diameter. Temperatures were measured at 16 stations on the inside of a flat-faced cylinder made of copper. Results regarding the flight test, wall temperatures, heat-transfer data, measurement repeatibility and effects of angle of attack, comparison of measured and theoretical stagnation-point heating rates, and measured an… more
Date: January 13, 1958
Creator: Bland, William M., Jr.; Swanson, Andrew G. & Kolenkiewicz, Ronald
Partner: UNT Libraries Government Documents Department
open access

A REVIEW OF THE DATA AND OBSERVATIONS TAKEN FOR THE PURPOSE OF LOCATING AND ESTIMATING THE SIZE OF THE HOLE IN THE CORE

Description: Two different measurements of the weight of D/sub 2/O required to fill the blanket to the level at which spillover into the core occurs and visual observation of this level, using a periscope, places the elevation of the hole (or crack) in the core vessel within about 1/2 in.~ of 812 ft 5 in., or approximately 1 to 1 1/2 in below the intersection of the 30 and 90 deg cones. The inherent errors involved in estimating a liquid level in the highpressure system by weighing the liquid drained to the… more
Date: June 13, 1958
Creator: Winkle, R.V. & Guymon, R.H.
Partner: UNT Libraries Government Documents Department
open access

Screening Tests of Mechanical Pipe Joints for a Fused Salt Reactor System

Description: The testing and evaluation of three types of mechanical joints in a circulating molten fluoride salt system, at temperatures up to 1600 F, were accomplished. The feasibility of these joints for use in a large scale molten salt system is discussed. Design criteria and operating techniques are described. Measurements were made of the leakage rates of helium through the Joints. The effects of thermal cycling, atmospheric oxidation, salt corrosion, and thermal stresses were noted. Disassembly and r… more
Date: August 13, 1958
Creator: McDonald, W. B.; Storto, E. & Olson, A. S.
Partner: UNT Libraries Government Documents Department
open access

UPPER ATMOSPHERE MONITORING PROGRAM. Quarterly Report Covering Period October 1, 1957 thru January 31, 1958. Report No. 1863

Description: An apparatus designed to tsst aerosol filter efficiency at pressures equal to or less than atmospheric and at linear face velocities of 5 to 1000 ft/ min is described. Aerosol collection efficiency studies were completed for IPC paper at 20,000 and 40,000 ft. Data developed in these studies indicate that ia the impaction and diffusion regions collection efficiency increases with altitude for all linear face velocities less than 800 ft/min. A propeller-type flowmeter, calibrated to measure the v… more
Date: June 13, 1958
Creator: Stern, S.; Jones, S.; Schekman, A. & Stuart, R.
Partner: UNT Libraries Government Documents Department
open access

PRELIMINARY INVESTIGATIONS INTO THE PREPARATION OF EXTRUDED GRAPHITE

Description: Graphite was prepared by means of hydraulic extrusion, with densities as high as 1.90 gm/cc, in rods of up to 9/4-in. in diam. Densities higher than 1.90 gm/cc can be obtained by impregnating the graphite. It may be possible, by properly controlling the particle size distribution in the feed material, to achieve higher densities without impregnation. Variables studied included die temperature, mixing technique, binder material, baking procedures, some lubricants and additives, and preliminary w… more
Date: March 13, 1958
Creator: Gibson, W.B.
Partner: UNT Libraries Government Documents Department
open access

Fast Neutron Effects on Du Pont 1290 Film

Description: Abstract: "Fast neutron effects on a widely used x-ray film have been investigated. The neutron flux was provided by the (d, t) reaction of a Cockcroft-Walton accelerator. Integrated exposures to 10-10 n/cm-2 were given the film. It was found that perturbations on film that were pre-exposed to Co-60 gamma rays from 10 to 2000 r were negligible. Simultaneous exposure of neutrons plus gammas also indicated negligible effect on the film insofar as the gamma dose was concerned."
Date: June 13, 1958
Creator: Block, Seymour & Hughes, Lewis
Partner: UNT Libraries Government Documents Department
open access

Fission Product Traps for Use in High-Temperature Gas-Cooled Graphite Reactors

Description: A proposal is given of an approach to a fission-product trapping system which appears feasible on the basis of thermodynamic and other data available. Reactor and trapping conditions are outlined. The half-lives, fission yields, and volatility of the fission products of interest are described. To provide the most effective retention at elevated temperatures, two types of reagents are required: a highly electropositive metal that will not melt or appreciably vaporize and which will form stable n… more
Date: March 13, 1958
Creator: Zumwalt, L. R.
Partner: UNT Libraries Government Documents Department
open access

Fast-Neutron Surveys Using Indium-Foil Activation

Description: Activation of indium foils by thermal neutrons has been applied to measurement of fast-neutron fluxes. Foils are encased in paraffin spheres placed in cadmium boxes. The high-energy neutrons that penetrate the cadmium become thermal neutrons; the thermal-neutron flux is proportional to the incident fast-neutron flux over a range of about 20 kev to 20 Mev. The foils are removed from the boxes and counted on a methane-flow proportional counter. High instantaneous neutron fluxes are easily detecte… more
Date: August 13, 1958
Creator: Stephens, Lloyd D. & Smith, Alan R.
Partner: UNT Libraries Government Documents Department
open access

Design, Development and Research Contract DDR-33

Description: This report summarizes experimental results obtained for the General Electric Company under terms of Design, Development and Research Contrast DDR-33. A discussion of the results, the manner in which they were obtained and their probable accuracy are included. Suggested improvements or modifications of properties of this nature be contemplated.
Date: March 13, 1958
Creator: Johanson, L. M.; Campbell, Robert J. & Mueller, Edward E
Partner: UNT Libraries Government Documents Department
open access

Effect of Target-Type Thrust Reverser on Transonic Aerodynamic Characteristics of a Single-Engine Fighter Model

Description: A brief investigation of a target-type thrust reverser on a single-engine fighter model has been conducted in the Langley 16-foot transonic tunnel at Mach numbers from 0.20 to 1.05. At Mach numbers of 0.80, 0.92, and 1.05, a hydrogen peroxide turbojet-engine simulator was operated with the thrust reverser extended. The angle of attack was varied from 0 degrees to 5 degrees at these Mach numbers.
Date: January 13, 1958
Creator: Swihart, John M.
Partner: UNT Libraries Government Documents Department
open access

Effect of inlet aspect ratio on the starting and pressure recovery characteristics of a rectangular swept scoop inlet tested at a Mach number of 3.1

Description: Report presenting an experimental investigation of a rectangular swept scoop inlet designed for and tested at a free-stream Mach number of 3.1 to determine the effect of inlet aspect ratio on the minimum inlet starting concentration ratio and the resulting inlet total-pressure recovery. Results regarding the determination of the starting contraction ratio, effect of inlet aspect ratio on the inlet starting characteristics, total-pressure recovery and mass-flow variations, and effects of inlet a… more
Date: January 13, 1958
Creator: Mackley, Ernest A.
Partner: UNT Libraries Government Documents Department
open access

Effects of External Store-Pylon Configuration and Position on the Aerodynamic Characteristics of a 45 Degree Swept Wing-Fuselage Combination at a Mach Number of 1.61

Description: Report presenting an investigation of a pylon-mounted-store airplane configuration in the supersonic pressure tunnel at a Mach number of 1.61. Forces and moments of a complete wing-fuselage-store-pylon combination was measured for a variety of pylon-mounted store locations below the wing. Results regarding the effect of store position on the aerodynamic characteristics in pitch, effect of store position on the aerodynamic characteristics in sideslip, store fins and store tail cone, double-store… more
Date: May 13, 1958
Creator: Morris, Odell A.
Partner: UNT Libraries Government Documents Department
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