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LLL Geothermal Industrial Support Program in chemistry and materials for FY76T and FY77

Description: A proposed program is outlined covering the following areas: scale characterization and control, brine and effluent characterization, suspended solids characterization and control, effluent condition for reinjection, corrosion surveillance and Geothermal Loop Experimental Facility support, and materials testing and evaluation. (MHR)
Date: July 29, 1976
Creator: Quong, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Interaction of an iridium-clad RTG heat source unit with a simulated terrestrial environment. [/sup 238/PuO/sub 2/]

Description: An iridium-clad, 100-W /sup 238/PuO/sub 2/ sphere, a prototype for the multihundred-watt radioisotope thermoelectric generator, was exposed for 1 y to a simulated temperate humid climate in an environmental test chamber containing sandy soil. The hot sphere sank into the soil after the first rain, then gradually acquired a hard crust around it as a result of the rainwater reacting with the hot soil during successive rains. Time and temperature profiles of the sphere were recorded during the wee… more
Date: February 1, 1976
Creator: Patterson, J. H.; Herrera, B.; Nelson, G. B.; Matlack, G. M. & Waterbury, G. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analysis of ultrasonic inspection data for Pilgrim 1 Reactor Nozzle N-2B

Description: The ultrasonic examination data relative to the discontinuity located in the pilgrim I reactor Vessel Nozzle N-2B weld was reviewed. The data was obtained during the 1976 in-service inspection. The results of the review of several examinations are tabulated, test conditions discussed, and a conclusion made as to probable flaw size.
Date: April 1, 1976
Creator: Klindt, K. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Performance test of a bladeless turbine for geothermal applications

Description: The Possell bladeless turbine was tested at the LLL Geothermal Test Facility to evaluate its potential for application in the total flow process. Test description and performance data are given for 3000, 3500, 4000, and 4500 rpm. The maximum engine efficiency observed was less than 7 percent. It is concluded that the Possell turbine is not a viable candidate machine for the conversion of geothermal fluids by the total flow process. (LBS)
Date: March 24, 1976
Creator: Steidel, R. & Weiss, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Diffuser augmentation of wind turbines

Description: Wind tunnel investigation of models of two diffuser design concepts is directed toward unconventional, very short, cost-effective configurations. One approach uses the energetic external wind to prevent separation of the diffuser's internal boundary layer. Another method used high lift airfoil contours for the diffuser wall shape. Diffuser model tests have indicated almost a doubling of wind power extraction capability for DAWTs compared to conventional turbines. Economic studies of DAWTs have … more
Date: January 1, 1976
Creator: Foreman, K. M.; Gilbert, B. & Oman, R. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Technological considerations in emergency instrumentation preparedness. Phase II-C. Emergency radiological and meteorological instrumentation for fuel reprocessing facilities

Description: A reference fuel reprocessing plant, postulated to process fuels from light water reactors with initial enrichments less than 5 percent /sup 235/U or equivalent fissile content, with exposures in the vicinity of 40,000 MWd/MTU and cooling times of approximately 150 days, was used to determine the sources and magnitudes of radionuclide releases to the environment in the event of postulated accidents within the plant. Based on these estimates of accident generated conditions, performance criteria… more
Date: August 1, 1976
Creator: Andersen, B. V.; Carter, L. A. & Droppo, J. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Evaluation of alkaline etchants for printed wiring boards

Description: A propietary, alkaline copper-ammonia complex etchant was evaluated for use in production of printed wiring boards (PWBs). A better etchant than the standard chromic-sulfuric acid etchant was needed because of the numerous disadvantages associated with use of the latter. Testing of the alkaline etchant involved etching identical circuit patterns with both etchants, micro-sectioning samples, and measuring conductor widths. There was little dimensional difference between the two systems. Inspecti… more
Date: September 1, 1976
Creator: Evans, M. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Asymmetry of thermal propagation velocity in a long force-cooled superconducting test line

Description: The phenomenon was observed of thermal destruction of superconductivity by current in a force-cooled test model power transmission line of 20 m length at currents up to 9 kA and temperatures between 8 and 14/sup 0/K. This line, fabricated by soldering doubly-stabilized Nb/sub 3/Sn tapes to each side of a bar of Ofhc copper (0.3 cm x 1.58 cm), was enclosed in a German silver cryogen flow tube. The cryogen (He gas) was controlled at a flow rate of 0.5 to 0.7 gm/sec. Destruction was initiated by a… more
Date: January 1, 1976
Creator: Hoffer, J. K.; Kerr, E. C. & Overton, W. C. Jr.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Surface effects on semiconductors. Final report

Description: Semiconductor bi-polar and field-effect transistors were contaminated with sodium ions, subjected to high temperature reverse bias, measured electrically, and examined internally to study the effects of inversion, depletion, and accumulation in crystalline silicon. This study was terminated because of the inability to induce electrical degradation through surface contamination at a level consistently high enough to permit statistically valid correlations and conclusions. (auth)
Date: January 1, 1976
Creator: Rauch, E. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Update on the development of 120-keV multi-megawatt neutral beam source

Description: The next generation of U.S. fusion experiments, which includes TFTR, MFTF, and Doublet III, will utilize neutral-beam injection for plasma heating. TFTR, for example, desires 20 MW of 120-keV deuterium atoms in pulses of 0.5-sec duration at 5-minute intervals from a total of 12 individual neutral-beam modules. A discussion is given of some of the design details of a 15-A, 120-keV, 0.5-sec ion-source module that has recently been built to test design concepts for TFTR sources, and some of the fe… more
Date: November 1, 1976
Creator: Haughian, J. M.; Baker, W. R.; Biagi, L. A.; Hopkins, D. B.; Owren, H. M. & Paterson, J. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Reservoir engineering report for the magma-SDG and E geothermal experimental site near the Salton Sea, California

Description: A description of the Salton Sea geothermal reservoir is given and includes approximate fault locations, geology (lithology), temperatures, and estimates of the extent of the reservoir. The reservoir's temperatures and chemical composition are also reviewed. The flow characteristics are discussed after analyses of drillstem tests and extended well tests. The field production, reserves and depletion are estimated, and the effects of fractures on flow and depletion are discussed. The reservoir is … more
Date: July 12, 1976
Creator: Schroeder, R. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Penetration of HEPA filters by alpha recoil aerosols

Description: Tests at Oak Ridge National Laboratory confirmed that alpha-emitting particulate matter does penetrate high-efficiency filter medium, identical to that used in HEPA filters, much more effectively than do non-radioactive or beta-gamma active aerosols. Filter retention efficiencies drastically lower than the 99.97 percent quoted for ordinary particulate matter have been observed with /sup 212/Pb, /sup 253/Es, and /sup 238/Pu sources, indicating that the phenomenon is common to all of these and pr… more
Date: January 1, 1976
Creator: McDowell, W. J.; Seeley, F. G. & Ryan, M. T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Materials Science Division coal technology seventh quarterly report, April--June 1976. [Gasification plant materials]

Description: Preliminary analysis of test results of 15 ceramic refractories for slagging gasifiers indicates that the magnesia-chrome, chrome-bonded alumina, and fusion-cast spinel bricks have substantially better abrasion-corrosion resistance than the other compositions. Thermal-shock testing has indicated that resistance to spalling of ceramic coatings can be improved with the use of graded alumina-chromia and magnesia-alumina multilayer coatings. The first corrosion-erosion test run for a total of 100-h… more
Date: January 1, 1976
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Investigation of fracture in pressurized gas metal arc welded beryllium

Description: Premature failures during proof testing of pressurized-gas-metal-arc (PGMA) welded beryllium assemblies were investigated. The failures were almost entirely within the beryllium (a forming grade, similar to HP-10 or S-240), close to and parallel to the weld interface. The aluminum-silicon weld filler metal deposit was not centered in the weld groove in the failed assemblies, and failure occurred on the side of the weld opposite the bias in the weld deposit. Tensile tests of welded samples demon… more
Date: May 20, 1976
Creator: Heiple, C. R.; Merlini, R. J. & Adams, R. O.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced geothermal primary heat exchanger (APEX). Quarterly progress report Q-3, 1 January 1976-31 March 1976

Description: The APEX program is designed to investigate the concept that a continuously recirculating flow of fine solid particles in the brine stream will substantially retard the formation of scale in the primary heat exchanger. The primary technical effort during this reporting period has been the installation, checkout and calibration of the test system under a variety of flow conditions. The baseline heat transfer tests and the baseline recirculating bed tests have been completed. Work is in progress … more
Date: January 1, 1976
Creator: Addoms, J. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Experimental stress analysis for four 24-in. ANSI standard B16. 9 tees

Description: The experimental stress analysis and low cycle fatigue tests of four tees tested by Combustion Engineering, Inc. (E-E) under subcontract to Union Carbide Nuclear Division are described. These tests are part of the ORNL Design Criteria for Piping and Nozzles Program which is being conducted for the development of design criteria for nuclear power plant service piping components. The test assemblies were fabricated at C-E from commercially obtained ANSI B16.9 tees and matching diameter steel pipe… more
Date: January 1, 1976
Creator: Hayes, J. K. & Moore, S. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

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.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Tritium storage development. Progress report No. 9, July--September 1976. [Tritiated concrete-polymer]

Description: Lysimeter testing of the polymer impregnated tritiated concrete (PITC) specimens at the Savannah River Plant has continued. After thirty-one weeks, a constant average tritium fraction release rate of 1.16 x 10/sup -6/ day/sup -1/ was reached in the percolate water with no measurable release into the air. Data from this experiment projected to long-term tritium releases estimate that a complete tritium release from the PITC will require 2,370 years and that the maximum fraction of the initially … more
Date: January 1, 1976
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

PDP-11 debugging tool. [Stand-alone hardware device for debugging hardware and software problems]

Description: Debugging a PDP-11 system can be quite frustrating; programs like ODT are helpful, but they must be integrated into existing software. Also, ODT adds overhead to the system, since it is interrupt driven through software traps. This characteristic makes it dangerous to use in real-time systems. A stand-alone hardware device was developed which can be connected to a PDP-11 running any software package. It has most of the features of ODT plus some unique features. Since it operates in a real-time,… more
Date: January 1, 1976
Creator: Tolmie, D. E. & Gallegos, M. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Electroforming Repair of a Nozzle Approach Section

Description: Procedures were developed to repair by nickel plating the approach section of the 2.44-m (8-foot) HTST combustor from Langley Research Center. A 20.3-cm (8-inch) diameter test part fabricated by using the same procedures that were used for the full-size part showed good integrity and, when subjected to burst test, did not fail until it reached 8000 psi. This was a good indication that the repair procedure would be adequate for the full-size nozzle section, since intended operating pressure is o… more
Date: August 1, 1976
Creator: Johnson, H. R. & Dini, J. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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