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The Brookhaven Chemonuclear in-Pile Test Loop

Description: The interest in utilizing reactor radiation energy (fission-fragment recoil and neutron-gamma) for production of chemicals has developed to the point where a loop to study chemonuclear system in a reactor under dynamic conditions is necessary.
Date: 1962
Creator: Tucker, Walter D.; Waide, C.; Bezler, P. & Steinberg, Meyer.
Partner: UNT Libraries Government Documents Department

Classification of explosives. Period covered: January--March 1976. Normal process development endeavor No. 216. [Transportation hazards]

Description: Sufficient supplies were purchased to test ten explosives using the NOL Card Gap Test as described in Department of the Army Technical Bulletin TB 700-2 (Explosives Hazard Classification Procedures) dated 19 May 1967. A calibration series was fired using pressed TNT (density = 1.626 Mg/m/sup 3/). The estimated 50 percent point was 158 cards.
Date: January 1, 1976
Creator: West, G. T.
Partner: UNT Libraries Government Documents Department

Packing procedure for shipment of PETN pellets. Final report, October 1975

Description: Three ''detonation tests'' and one ''burn test'' were performed on an AN can, Type AN 8024, containing PETN pellets. Test procedures were discussed with a representative of the Department of Transportation. The can contained all reactions and did not rupture in any of the tests. The packing procedure and container were deemed acceptable for the pellets tested. (auth)
Date: January 1, 1975
Creator: West, G. T.
Partner: UNT Libraries Government Documents Department

Solar power array for the concentration of energy. Technical report covering Task 2. Task 2. Modifications to a specular photometer

Description: This report describes the design, fabrication, and calibration which have been completed for the modified specular photometer. The basic instrument is designed to examine the reflection or transmission of solar materials by measuring the amount of radiation which is reflected or transmitted by the material into a given acceptance aperture. (WDM)
Date: February 1, 1976
Creator: Robinson, D. A.
Partner: UNT Libraries Government Documents Department

CRBRP flow induced vibration program

Description: The program to assure the structural adequacy of CRBRP components during its planned 30 years of operation is described. The program includes (1) an assessment of reactor components relative to their susceptibility to FIV, (2) designing to minimize component excitation due to FIV, (3) scale model tests to measure structural response during simulated operating conditions and (4) preoperational tests. An overview of the CRBRP test program is described. Additionally, details of scale model testing of reactor internals and the steam generator is described in more detail.
Date: January 1, 1977
Creator: Novendstern, E H; Grochowski, F A; Yang, T M; Ryan, J A & Mulcahy, T M
Partner: UNT Libraries Government Documents Department

Effect of tube-support interaction on the vibration of a tube on multiple supports

Description: The effects of tube orientation (horizontal/vertical), tube/support misalignment, fluid medium (air/water), tube/support-hole clearance, support thickness, exciting force amplitude, and support spacing on the vibrational characteristics (resonant frequencies, mode shapes, and damping) and displacement response amplitude of a multi-span tube were determined from thirteen different tests. The test model features a 15.875 mm (0.625 in.) dia x 3.175 mm (0.125 in.) thick x 5.232 m (206 in.) long seamless Croloy (2-/sup 1///sub 4/% Cr--1% Mo) tube, and combinations of four support thicknesses (12.70 mm (/sup 1///sub 2/ in.), 19.05 mm (/sup 3///sub 4/ in.), 38.10 mm (1/sup 1///sub 2/ in.), and 50.80 mm (2 in.)) and three sizes of diametral clearance of tube/support-hole (0.254 mm (10 mils), 0.508 mm (20 mils), and 0.762 mm (30 mils)). The test results were compared with the analytical results based on the multi-span beam with ''knife-edge'' supports.
Date: January 1, 1977
Creator: Shin, Y. S.; Jendrzejczyk, J. A. & Wambsganss, M. W.
Partner: UNT Libraries Government Documents Department

Geothermal R and D Project report for period July 1, 1976 to September 30, 1976

Description: Progress in the third quarter of 1976 is reported for the geothermal energy projects conducted by or under the direction of the Idaho National Engineering Laboratory of the Energy Research and Development Administration. These projects include the Raft River geothermal development within reservoir and surface testing programs; the Boise Space Heating Project; the design and analysis of power conversion concepts for generating electricity from moderate temperature (approximately 150/sup 0/C or 300/sup 0/F) resources; advanced heat exchanger research and testing; and studies relating to a variety of direct uses of geothermal heat energy.
Date: December 1, 1976
Creator: Kunze, J. F. (ed.)
Partner: UNT Libraries Government Documents Department

Solar heating and cooling of mobile homes, Phase II. Final report

Description: The specific objectives of the Phase II program were: (1) through system testing, confirm the feasibility of a solar heated and cooled mobile home; (2) update system performance analysis and provide solar heating and cooling computer model verification; (3) evaluate the performance of both an absorption and a Rankine air conditioning system; (4) perform a consumer demand analysis through field survey to ascertain the acceptance of solar energy into the mobile home market; and (5) while at field locations to conduct the consumer demand analysis, gather test data from various U.S. climatic zones. Results are presented and discussed. (WHK)
Date: December 1, 1976
Creator: Jacobsen, A. A.
Partner: UNT Libraries Government Documents Department

Program plan for the Brayton Isotope Power System. Phase I. Design, fabrication and test of the Brayton Isotope Power System

Description: Phase I of an overall program for the development of a 500 to 2000 W(e) (EOM), 7-y life, power system for space vehicles is discussed. The system uses a closed Brayton dynamic system to convert energy from an isotope heat source at a net efficiency greater than 25 percent. This first phase, a 35-month effort, is for the conceptual design of a 1300 W(e), 450 lb flight system and the design, fabrication, and test of a ground demonstration system. The flight system will use, for the baseline design, two of the multihundred-watt (MHW) heat sources being developed. The Ground Demonstration System will simulate, as closely as possible, the Brayton Isotope Power Flight System and will utilize components and technology being developed for the Mini-Brayton rotating unit, recuperator and heat source assembly, respectively. The Ground Demonstration System includes a performance test and a 1000-h endurance test.
Date: October 22, 1975
Partner: UNT Libraries Government Documents Department

Preliminary development of inservice inspection methods for LMFBR's

Description: Although firm requirements have not yet been established in the United States for inservice inspection of LMFBR's, some initial development work on potentially applicable nondestructive testing methods has been conducted by the Hanford Engineering Development Laboratory. The paper contains a synopsis of investigations conducted in each of the following areas: ultrasonic examination of austenitic stainless steel welds, electro-thermal NDT method for stainless steel components, eddy current methods for in-situ examination of heat exchanger tubes, and under-sodium viewing and ranging. Development activities and experimental results obtained to date in each of these areas are highlighted, along with comments on potential applicability for inservice inspection of LMFBR's.
Date: March 1, 1976
Creator: Spanner, J. C.
Partner: UNT Libraries Government Documents Department

Development of all-beryllium riveted structures. [Frustrum; cylinders; cones]

Description: Results are presented of a development program aimed at making a full-scale, all-beryllium frustrum by riveted assembly methods. Included are descriptions of the sheet-metal fabrication practices and assembly plans. Results of extensive mechanical testing of both ingot- and powder-source beryllium products that are presented include tensile, notch-tensile, bearing, and shear tests. Although the full-size structure has not been built, examples are given of several conical and cylindrical structures that were made. The largest of these is a 20-in. diameter, 15-in. long cylinder that was roll-formed from one 0.050-in. thick ingot sheet and assembled with 60 countersunk rivets. Tensile testing of riveted flat coupons is also reported as is bulge testing of riveted cylindrical shells. A cost comparison of riveted deep-drawn and powder-source cylinders is made. Results show that when strength and dimensional tolerance requirements are not severe, a riveted assembly approach is warranted. 33 figures, 8 tables. (auth)
Date: April 20, 1976
Creator: Floyd, D. R.; Leslie, W. W.; Miley, D. V. & Nokes, R. W.
Partner: UNT Libraries Government Documents Department

Thermoelectric materials evaluation program. Quarterly technical task report No. 44. [GdSe/sub x/; TPM-217]

Description: This document covers: N-type material development (gadolinium selenide; synthesis, analysis, processing, element contacting, compatibility, life testing), TPM-217 P-type characterization (element contacting, compatibility, life and performance testing, partition), and couple development (TPM-217/N-rare earth chalcogenide, TPM-217/3N-PbTe). (DLC)
Date: December 1, 1974
Creator: Hampl, E. F. Jr.
Partner: UNT Libraries Government Documents Department

Freeze block testing of buried waste lines

Description: An investigation was conducted to demonstrate application of freeze blocking in waste transfer lines such that a hydrostatic pressure test can be applied. A shop test was conducted on a 20-foot length, 3-inch schedule 40, carbon steel pipe using a coolant of dry ice and Freon. The positive results from these tests prompted a similar employment of the freeze block method in hydrostatic pressure testing the feed inlet leading to 241-S-101 Waste Tank. This pipeline is a 3-inch schedule 10, stainless steel pipe approximately 800 feet long. The freeze block was formed near the lower end of the pipe as it entered the 101-S Waste Tank and a pressure hold test was applied to this pipeline. This test proved the integrity of the pipeline in question, and demonstrated the validity of freeze blocking an open-ended pipeline which could not be hydrotested in other conventional ways. The field demonstration facility, costing $30,200 was completed late in 1975.
Date: May 20, 1976
Creator: Robbins, E. D. & Willi, J. C.
Partner: UNT Libraries Government Documents Department

Thermoelectric materials evaluation program. Quarterly technical task report No. 46. [N-type GdSe/sub x/; P-type TPM-217 ((Cu, Ag)Se/sub 2/)]

Description: The following were conducted on the N-type gadolinium selenide materials: synthesis, analyses, processing, element contacting (sputter coating), compatibility and life testing, and thermal expansion measurements. The following were done on the P-type TPM-217 material (Cu/sub 1/./sub 97/Ag/sub 0/./sub 03/Se/sub 1/./sub 9945/): preparation and analyses, element contacting, stability, compatibility, and life and performance testing. Development and testing of couples and modules are also reported. 24 fig, 27 tables. (DLC)
Date: February 1, 1976
Creator: Hampl, E. F. Jr.
Partner: UNT Libraries Government Documents Department

Computer controlled data measurement and analysis system used for measuring switching parameters of semiconductors. [Employs HP 2114B minicomputer; reports contain all applicable coding in assembly language]

Description: A computer-controlled data acquisition system which was employed to measure the threshold switching parameters of amorphous semiconductors is described. This system is capable of measuring the delay time required for a sample to switch, the electrical energy put into a sample and the charge passing through it during the delay time, and its ambient temperature. With this equipment an experimenter is able to control the magnitude and maximum duration of the voltage applied to a sample, the time interval between applications of voltage, and the load resistor in series with a sample. An HP 2114B minicomputer provides control and analysis capabilities for this system. Basically, this apparatus is a constant voltage pulse generator and signal processor. Major modules of this system are a transistorized high voltage switch, a digitally controlled high voltage resistor and power supply, a low-thermal-noise input-scanner, a precision timer, and two analog integrators. The amplitude of a voltage pulse can be varied from 0V to 1 kV and the maximum duration can be varied from 10 ..mu..s to 300 s. During the voltage pulse, a signal which represents the current through a sample is processed by analog integrators and signal multipliers. If the sample switches to a low-resistance state during a voltage pulse, this equipment automatically detects the event and removes the voltage from the sample to prevent sample deterioration. Following the voltage pulse, a teletypewriter prints the raw data from the integrators, power supply, and timer and the calculated values of the charge and energy input. 44 figures, 2 tables. (auth)
Date: January 1, 1976
Creator: Culp, C. H. & Eckels, D. E.
Partner: UNT Libraries Government Documents Department

Program for alloy development for irradiation performance in fusion reactors

Description: The use of fission reactors as irradiation test facilities for structural materials for a fusion environment is discussed. A comparison is made of displacement damage and helium production in fast fission and fusion reactors for stainless steel. (MOW)
Date: January 1, 1977
Creator: Stiegler, J. O. & Reuther, T. C.
Partner: UNT Libraries Government Documents Department

Pressure drawdown and build-up analyses in geothermal reservoirs

Description: Classical well analyses were performed using Systems, Science and Software's Quasi-Active Geothermal Reservoir simulator (QUAGMR). QUAGMR solves the equations of heat flow and unsteady Darcian fluid flow in one, two, or three space dimensions. The computer model is capable of handling a single-phase liquid-water system or a multiphase liquid/vapor system. Pressure drawdown and build-up well-tests are performed to acquire permeability data for the reservoir. Classical well-test interpretation assumes that only a single phase is flowing during the test. This assumption can lead to dramatic errors in the permeability data if, in fact, there is multiphase flow during the test. Several calculations were performed which demonstrate these errors in interpretation. A suite of four problems is presented to illustrate these results. One and two-dimensional problems were formulated with single and multiphase flow during the well-test. In the single phase problems, very good agreement with the classical theory was obtained. However, in the multiphase problems, the classical interpretation led to gross errors in the permeability data. These results indicate the need for a simulator which will handle multiphase flow in a geothermal system. Without this capability, errors in the interpretation of well flow data could lead to mismanagement of the reservoir engineering of the geothermal field.
Date: March 1, 1976
Creator: Rice, L. F.
Partner: UNT Libraries Government Documents Department

Joint U. S. --U. S. S. R. test of U. S. MHD electrode systems in U. S. S. R. U-02 MHD facility (phase I). Final report

Description: The first (Phase I) joint U.S.-U.S.S.R. test of U.S. electrode materials was carried out in Moscow between September 25 and October 8, 1975 in the Soviet U-02 MHD facility. The test procedure followed closely a predetermined work plan designed to test five different zirconia based materials and the cathode and anode electrode wall modules under MHD operating conditions. The materials which were selected were 88Zr0/sub 2/-12Y/sub 2/0/sub 3/, 82Zr0/sub 2/-18Ce02, 50Zr0/sub 2/-50Ce0/sub 2/, 25Zr0/sub 2/-75Ce0/sub 2/ and 20Zr0/sub 2/-78Ce0/sub 2/-2Ta/sub 2/0/sub 5/. The electrode modules were constructed by Westinghouse Research and Development Laboratory. Each of the five electrode materials had four different current densities established between the anode and cathode during the experiment which lasted a total of 127 hours. There were four main phases in the test schedule: (1) start-up of the channel over a specific heating period. No seed (K/sub 2/C0/sub 3/) introduction - 18 hours. (2) Electrical tests at operating temperature to investigate electro-physical characteristics of the channel and electrodes - 6 hours. (3) Operating life test - 94 hours. (4) Shut-down of the channel over a specific cool down period - 9 hours. All except six electrode pairs performed satisfactorily during the entire test. These were the pairs which were designated to carry maximum or near maximum current density. Five pairs failed early in the life test and the sixth pair failed in the last several hours. Failure was not due to the electrode materials, however, but due to lead-out melting caused by joule heating in the platinum wires. The U-02 facility is described and the operational parameters are given for each phase of the test. The electrode and insulating walls are described and the appropriate parameters that are used to predict the performance of the module are given.
Date: January 1, 1976
Creator: Hosler, W R
Partner: UNT Libraries Government Documents Department

Diffusion of gases in solids: rare gas diffusion in solids; tritium diffusion in fission and fusion reactor metals. Final report

Description: Major results of tritium and rare gas diffusion research conducted under the contract are summarized. The materials studied were austenitic stainless steels, Zircaloy, and niobium. In all three of the metal systems investigated, tritium release rates were found to be inhibited by surface oxide films. The effective diffusion coefficients that control tritium release from surface films on Zircaloy and niobium were determined to be eight to ten orders of magnitude lower than the bulk diffusion coefficients. A rapid component of diffusion due to grain boundaries was identified in stainless steels. The grain boundary diffusion coefficient was determined to be about six orders of magnitude greater than the bulk diffusion coefficient for tritium in stainless steel. In Zircaloy clad fuel pins, the permeation rate of tritium through the cladding is rate-limited by the extremely slow diffusion rate in the surface films. Tritium diffusion rates through surface oxide films on niobium appear to be controlled by cracks in the surface films at temperatures up to 600/sup 0/C. Beyond 600/sup 0/C, the cracks appear to heal, thereby increasing the activation energy for diffusion through the oxide film. The steady-state diffusion of tritium in a fusion reactor blanket has been evaluated in order to calculate the equilibrium tritium transport rate, approximate time to equilibrium, and tritium inventory in various regions of the reactor blanket as a function of selected blanket parameters. Values for these quantities have been tabulated.
Date: September 1, 1976
Creator: Abraham, P. M.; Chandra, D.; Mintz, J. M.; Elleman, T. S. & Verghese, K.
Partner: UNT Libraries Government Documents Department

Evaluating aeroshell materials for the MJS/multi-hundred watt heat source. [Reentry survival from an aborted launch]

Description: In order to evaluate the possibility of improving upon an existing aeroshell design for the Multi-Hundred Watt power source, a trade-off study was conducted on a variety of candidate aeroshell materials. Mariner Jupiter/Saturn mission requirements and aeroshell material criteria were established to form a basis for the evaluation. Material data searches and reentry analyses were made to permit preparation of a quantitative comparison matrix. Depending upon the designer's constraints, either the well-known polycrystalline graphites (POCO-AXF-5Q, ATJS) or the more complex composite materials (AVCO 3D C/C, Pyrocarb-406) may be chosen.
Date: July 1, 1976
Creator: Bennett, G. L.; Hagan, J. C. & Tantino, D. C.
Partner: UNT Libraries Government Documents Department