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in subjects: "Engineering And Equipment"

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A PULSED EDDY CURRENT TEST SYSTEM USING REFLECTED FIELDS

An eddy current test system is described in which the test information is detected as a series of fields reflected from the metal surface and interior. Pulsed electromagnetic fields are caused to impinge upon the test specimen. These fields are restricted to a small cross sectional area over a path in space long enough to be useful for test purposes by devices called mask-apenture assemblies. This approach provides a number of advantages over conventional eddy current methods of comparable capa… more

Date: June 11, 1962

Creator: Renken, C. J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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ON TWO-DIMENSIONAL FLUID MOTION THROUGH A SPOUT COMPOSED OF FOUR PLANE WALLS

The mapping function, the complex potential, and the equations for the streamlines and equipotential lines for the fluid motion through a spout were obtained. One nudiscussed. (auth)

Date: October 17, 1960

Creator: Yeh, G.C.K.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Feasibility Study of a New Mass Flow System. Quarterly Report No. 5, June 1, 1961 to August 31, 1961

Activities are reported on development work on a mass flow system capable of measuring externally the properties of homogeneous flow, slurries, highly corrosive fluids, and multi-phase fiuids. In the proposed system, the fluid passes through an S-shaped tube wherein measurements of angular momentum and density yield mass flow directly. (B.O.G.)

Date: September 20, 1961

Creator: Haffner, J. W.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Experimental Investigation of the Effects of Ultrasonic Vibrations on Burnout Heat Flux With Boiling Water. Quarterly Technical Progress Report, January-March 1961

In this investigation, the effect of an ultrasonic field on the maximum nucleate heat flux (burnout) that can be sustained by boiling water in a flow system will be determined. The water will flow in the direction of sound propagation within an annular flow channel bounded on the outside by a glass tube and on the inside by a 0.25-in. OD heating element. The design of the test section and flow system is given. (D.L.C.)

Date: October 31, 1961

Creator: Romie, F. E.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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X-Ray Diffraction Camera for the Alignment of Large Single Crystals

A back-reflection Laue camera with three rotation axes and three orthogonal translation axes is described. This camera allows the alignment of large single crystals with a precision of plus or minus 0.25 deg . The degree of single crystallinity of a specimen may be examined. In addition it is possible to accurately mark a crystal for subsequent utilization. (auth)

Date: June 1, 1961

Creator: Meyerhoff, R.W.; Bailey, D.M. & Smith, J.F.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Grounding of Beta Sources by an Auxiliary Alpha Source

A Po/sup 210/ source was used to furnish a reliab1e ground for both electron and positron sources. This was done to prevent the electron and positron sources from charging during BETA spectral studies in magnetic lens spectrometers. An approximately 20- mu c Po/sup 210/ source was placed 1.2 in. behind a 4- mu c Na/sup 2 / 2>s positron emitter backed by 20- mu g/cm/sup 2/ Formvar in the spectrometer; this arrangement resulted in a charging rate decrease of approximately 80%. When the source was… more

Date: December 1, 1960

Creator: Nichols, R. T. & Jensen, E. N.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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NEUTRON RADIOGRAPHY: A 1962 PROGRESS REPORT

The possibility of improved detection discrimination between selected materials; the high absorption of several 1ight materials such as hydrogen, lithium, and boron; and the relatively low absorption of many heavy materials are some characteristics which make neutron radiographic inspection attractive as a complementary technique to xradiography. A study of neutron radiography is reported in which the emphasis has been placed upon determining many of the characteristics of various techniques fo… more

Date: August 17, 1962

Creator: Berger, Harold

Item Type: Article

Partner: UNT Libraries Government Documents Department

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A Bibliography on Gas Lubricated Bearings-Revised. Interim Report

A compilation of 290 references on gas bearings is presented. In most cases an English resume' of each reference is included a translation being made when required. The references are arranged alphabetically by first author. Indexes included are the year of origin corporate author, subject, patent number, and country of origin. (J.R.D.)

Date: September 15, 1959

Creator: Sciulli, E. B.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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STUDIES IN CONTACT MICRO-RADIOGRAPHY

A study was made of contact microradiographic techniques for the x-ray evaluation of tin specimens or selected small regions in large specimens. Extraneous absorbers such as air and the film holder were removed to permit the use of low-energy x rays, and high-resolution plates were used which permit magnifications up to 500x. Microradiographs are presented for graphite-coated uranium carbide particles, nickel screen, thin graphite section, and various fibrous materials. It is concluded that the… more

Date: October 31, 1963

Creator: McClung, R W

Item Type: Article

Partner: UNT Libraries Government Documents Department

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HEAT-TRANSFER EXPERIMENTS ON A PROPOSED FUEL ASSEMBLY FOR THE EXPERIMENTAL GAS COOLED REACTOR. SECTION II FO FUEL-ASSEMBLY HEAT-TRANSFER AND CHANNEL PRESSURE-DROP EXPERIMENT FOR THE EGCR RESEARCH AND DEVELOPMENT PROGRAM

Heat-transfer data are presented for the Experimental Gas Cooled Reactor Title I seven-rod fuel-assembly design. The effect on heat transfer of (1) the radial location of the outer six rods of the seven-fuel-rod cluster and of (2) the addition of helical-finned spacers at the midpoint of each of the seven fuel rods is discussed. The heattransfer data were obtained to verify preliminary general assumptions pertaining to the heat-transfer characteristics of the seven- rod fuel-assembly design and… more

Date: April 12, 1960

Creator: Beaudoin, C.L. & Higgins, R.M.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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SPECIAL HEAT TRANSFER PHENOMENA FOR SUPERCRITICAL FLUIDS

Present-day knowledge concerning the molecular structure of supercritical fluids is briefly reviewed. It is shown that liquid-like and gas-like phases may coexist at supercritical pressures, although they may not be in equllibrium with each other. it is postulated that on the basis of the coexistence of these two phases a "boiling-like" phenomenon may provide the mechanism of heat transfer to supercritical fluids at high heat fluxes and certain other conditions. An unusual mode of hea… more

Date: January 1, 1956

Creator: Goldmann, K

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Free-Oscillation Variable-Deflection Dynamic Rig

Sandia Corporation Dynannic Rig No. 11 was designed to facilitate the dynamic stability testing of store models in the Sandia Corporation 12" x 12" blow down wind-tunnel facility. The rig was designed to provide a convenient and rapid method for shifting model center of rotation with respect to the rig oscillating head, and to make it possible to easily adjust the deflection mechanism to deflect and release the model at any angle desired within limits of the model and mechanism. Also, the rig h… more

Date: November 1, 1959

Creator: Maydew, R. C. & Weydert, J. C.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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High-Speed Auto-Data System for Blast Studies

A multichannel high-speed automated system for recording digitally the outputs of the analog transducers used in the study of blast effects from small HE charges is described. Test phenomena associated with these studies are recorded in 10 to 40 msec. Installation and operation of this data handling system are described. (J.R.D.)

Date: July 1, 1960

Creator: Jones, R. D. & Smith, J. D.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Examination of a Nonregenerative Heat Exchanger From the u.s.s. Nautilus (Ssn-571)

Selected components from a staianless steel nonregenerative heat exchanger removed from the U.S.S. Nautilus (SSN571) have been examined for evidence of stress-corrosion cracking. The examination was conducted on three baffle plates, all primary-face seal welds, and the tubes and the surrounding tube sheets of 7 out of a total of 35 tubes. Maximum operating temperature of the heat exchanger was 260 ction prod- F for the inlet primary water and 164 ction prod- F for the exit secondary water. Chlo… more

Date: February 19, 1960

Creator: Berry, W. E.; Stewart, O. M. & Fink, F. W.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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A STUDY OF THE VARIATION OF STEAM VELOCITY IN VERTICAL BOILING CHANNELS

An analysis was made to correlate experimental boiling heat-transfer data with the variable relative velocity (C/sub s/ C/sub L/). The correlation was based on a boiling model or mechanism. The range of variables encountered included pressure, water velocity, power density, subcooling, steamvolume fraction, steam quality, and channel distance. Forced and natural circulation tests were investigated. Results are reported. (W.L.H.)

Date: November 1, 1960

Item Type: Report

Partner: UNT Libraries Government Documents Department

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A CORRELATION OF PULSE COLUMN LIQUID-LIQUID HEAT TRANSFER. Progress Report No. 23 on THE PERFORMANCE OF CONTACTORS FOR LIQUID-LIQUID EXTRACTION

Submitted as a thesis by William Berdell Barlage, Jr. Heat transfer studies were refined and extended to the point where the results could be generalized into a mathematical correlation valid over a reasonably wide range of variables. An extended study was made of the rate of heat transfer between benzene and water in direct contact in a pulse column, and of the operating variables which controlled the behavior. In this mode of heat transfer the benzene was dispersed as a family of droplets int… more

Date: October 23, 1959

Creator: Barlage, W.B. Jr. & Pike, F.P.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Investigation of Vapor Volume Fraction and Slip Velocity Under the Euratom Program. Quarterly Progress Report, April 15, 1963-June 30, 1963

Vapor volume fraction (void fraction) experiments using a gamma attenuation technique were planned. The experimental program required designing a test section and a steam generator. While the design of the test section was straightforward, the steam generator required considerably more attention because of the large flow and power requirements. Both designs were completed. All components of the gamma attenuation detection system were assembled and checked to be sure they were in proper operatin… more

Date: July 10, 1963

Item Type: Report

Partner: UNT Libraries Government Documents Department

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STEAM SEPARATION TECHNOLOGY UNDER THE EURATOM PROGRAM. Quarterly Progress Report, January 1, 1963-March 31, 1963

For purposes of analysis and experiment the centrifugal type downflow separator was divided into the inlet nozzle, separating zone, and outlet nozzle. The analysis and experiments have resulted in a new outlet design, a method of determining separating length, and a more effective inlet nozzle. The results have caused a reduction in pressure loss from 5 ft of water for the reference design to 1.5 ft of water for the new design at a flow rate of 1400 gpm. A reactor core riser and downcomer regio… more

Date: April 10, 1963

Item Type: Report

Partner: UNT Libraries Government Documents Department

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STEAM SEPARATION TECHNOLOGY UNDER THE EURATOM PROGRAM. Quarterly Progress Report, July 1, 1963-September 30, 1963

Calibration of the liquid-level detector for steam-water facility is complete from 600 to 2000 psig. Permissible steam release rates for 24 and 36 inches above the interface are established for the test pressures. The correlalation equation which relates steam void fraction to basic system parameters is further refined to include ail the data from this program as well as from the low-pressure steam-water facility. By addition of another dimensionless term to the equation it is possible to exten… more

Date: October 10, 1963

Item Type: Report

Partner: UNT Libraries Government Documents Department

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STEAM SEPARATION TECHNOLOGY UNDER THE EURATOM PROGRAM. Quarterly Progress Report, April 1, 1963-June 30, 1963

Installation of the test equipment and checkout of the steam-water test facility's controls for the first series of tests was completed with favorable results. Tests to determine the relation between steam void fraction and superficial steam velocity are complete through the pressure range of 600 to 2,000 psig. A correlation equation which relates steam void fraction to basic system parameters ia reported. The liquid level detector is in operation, and preliminary tests were performed. Detector… more

Date: July 10, 1963

Item Type: Report

Partner: UNT Libraries Government Documents Department

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A Nonbond Detector for Hollow Slugs

A tester was developed to detect nonbonded areas between the cladding and the core of hollow slugs. These slugs are one inch in diameter and eight inches long, and have a 3/8 inch axial hole. The tester employs an ultrasonic detector previously developed at the Savannah River Laboratory. A transducer 5/ 16 inch in diameter was developed to pass down the inside of the slug and a mechanical feeder was constructed to provide an automatic inspection cycle. (auth)

Date: October 1, 1956

Creator: Ross, J. D. & Leep, R. W.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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An Analysis of Specific Heat Data for Water and Water Vapor in the Critical Region. Technical Report No. 8

A comprehensive review of the available data for the specific heat at constant pressure of water and water vapor is given for pressures from 14.22 to 4300 psia and temperatures from 680 to 800 deg F. ln addition a description is given of the various experimental techniques employed by different investigators to carry out measurements of this property. Deviations of up to 20% are shown to be in existence between the measured values of specific heat of different investigators. The estimated appar… more

Date: October 1, 1961

Creator: Nowak, E. S. & Grosh, R. J.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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High-Flux Heat Transfer Studies: An Analytical Investigation of Laminar Film Boiling

An analysis was made of siable, laminar, free convection, film boiling from isothermal vertical plates and horizontal cylinders surrounded by a saturated liquid, where radiation was only of minor importance. The mathematical techniques of boundary layer theory were used and the boundary layer equations were reduced to ordinary differential equations by means of a transformation similar to those used in free convection and condensation. The equations were solved for: (1) compressible flow with v… more

Date: October 1, 1959

Creator: McFadden, P. W. & Grosh, R. J.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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A Theoretical Study of the Transient Operation and Stability of Two-Phase Natural Circulation Loops

Mathematical models of the time-dependent behavior of two-phase natural- circulation loops were used to predict the operation and to explain the unusual instability sometimes observed. The initial results obtained for a loop similar to the Univ. of Minnesota loop were used to formulate a more complex and accurate model, and the predicted transient behavior was in close agreement with the experimental results from the Minnesota loop. For a 300psia, high-pressure loop, unstable oscillatory behavi… more

Date: June 1, 1961

Creator: Garlid, K.; Amundson, N. R. & Isbin, H. S.

Item Type: Thesis or Dissertation

Partner: UNT Libraries Government Documents Department