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CdSiAs/sub 2/ thin films for solar cell applications. First quarter report April 9, 1979-June 30, 1979

Description: Near stoichiometric bulk polycrystalline CdSiAs/sub 2/ has been synthesized by two techniques: (1) direct fusion of the elements and (2) direct fusion of the binaries SiAs, Cd/sub 3/As/sub 2/ and CdAs/sub 2/. The latter technique resulted in denser ternary material with good homogeneity. The above binaries melt congruently and were also formed by direct fusion. Sputtered ternary films were formed using a bulk CdSiAs/sub 2/ target, and a composite target of CdAs/sub 2/ discs in a Si plate. Compo… more
Date: July 25, 1979
Creator: Burton, L.C. & Slack, L.H.
Item Type: Refine your search to only Report
open access

Design of a negative ion neutral beam system for TNS

Description: A design is presented that suggests that a negative ion neutral beam based on direct extraction is applicable to TNS, assuming technological advancements in several areas. Improvements in negative ion sources, direct energy conversion of charged beams, and high speed cryogenic pumping are needed. The increase in efficiency over a positive ion system and the encouraging results of the first attempt at a total design justify increased effort in the development of the above mentioned areas.
Date: January 25, 1979
Creator: Easoz, J. R. & Sink, D. A.
Item Type: Refine your search to only Article
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Design of a positional reference system for ultraprecision machining

Description: The primary goal for an ultraprecision turning machine is to have the capability to position precisely the cutting points of a tool along a defined contour with respect to the part. In order to accomplish this goal, the use of a stable-positional-reference system has become apparent. Several efforts have been made by representatives of the diamond-turning community to design such a needed reference system. Efforts made at Y-12 to design the needed system are reviewed.
Date: September 25, 1979
Creator: Arnold, J. B.; Burleson, R. R. & Pardue, R. M.
Item Type: Refine your search to only Report
open access

Design of an Advanced Bundle Divertor for the Demonstration Tokamak Hybrid Reactor

Description: The conclusion of this work is that a bundle divertor, using an improved method of designing the magnetic field configuration, is feasible for the Demonstration Tokamak Hybrid Reactor (DTHR) investigated by Westinghouse. The most significant achievement of this design is the reduction in current density (1 kA/cm/sup 2/) in the divertor coils in comparison to the overall averaged current densities per tesla of field to be nulled for DITE (25 kA/cm/sup 2/) and for ISX-B/sup 2/ (11 kA/cm/sup 2/). … more
Date: January 25, 1979
Creator: Yang, T. F.; Lee, A. Y.; Ruck, G. W.; Prevenslik, T. V. & Smeltzer, G.
Item Type: Refine your search to only Article
open access

Design tradeoff studies and sensitivity analysis. Appendix B

Description: The results of the design trade-off studies and the sensitivity analysis of Phase I of the Near Term Hybrid Vehicle (NTHV) Program are presented. The effects of variations in the design of the vehicle body, propulsion systems, and other components on vehicle power, weight, cost, and fuel economy and an optimized hybrid vehicle design are discussed. (LCL)
Date: May 25, 1979
Item Type: Refine your search to only Report
open access

Development of an 8 kW wind turbine generator for residential type applications. Phase I: design and analysis. Volume 1. Executive summary

Description: The Composite Bearingless Wind Turbine was developed at the United Technologies Research Center following many years of bearingless rotor research and development for helicopter applications. The current 8 kW contract was begun in October 1977 with delivery of the prototype scheduled for November 1979. The contract consists of two phases. Phase I encompasses the complete design of the system and supporting analytical and experimental studies. The Phase I final report has been completed, and thi… more
Date: June 25, 1979
Creator: Cheney, M C
Item Type: Refine your search to only Report
open access

Development of an 8 kW wind turbine generator for residential type applications. Phase I: design and analysis. Volume II. Technical report

Description: This Phase I summary report contains a description of the 8 kW wind energy conversion system developed by the United Technologies Research Center (UTRC) for the Department of Energy. The wind turbine employs the UTRC Bearingless Rotor Concept in conjunction with a passive pendulum control system which controls blade pitch for start-up, efficient power generation, and high-speed survivability. The report contains a summary of the experimental and analytical programs in support of design efforts.… more
Date: June 25, 1979
Creator: Cheney, M C
Item Type: Refine your search to only Report
open access

Effect of torus wall flexibility on hydro-structural interaction in BWR containment system

Description: The MARK I boiling water reactor (BWR) containment system is comprised of a light-bulb-shaped reactor compartment connected through vent pipes to a torus-shaped and partially water-filled pressure suppression chamber, or the wetwell. During either a normally occurring safety relief valve (SRV) discharge or a hypothetical loss-of-coolant accident (LOCA), air or steam is forced into the wetwell water pool for condensation and results in hydrodynamically induced loads on the torus shell. An analyt… more
Date: April 25, 1979
Creator: Lu, S.C.H.; McCauley, E.W. & Holman, G.S.
Item Type: Refine your search to only Article
open access

Electrostatic levitation, control and transport in high rate, low cost production of inertial confinement fusion targets

Description: Inertial confinement fusion requires production of power plant grade targets at high rates and process yield. A review of present project specifications and techniques to produce targets is discussed with special emphasis on automating the processes and combining them with an electrostatic transport and suspension system through the power plant target factory.
Date: May 25, 1979
Creator: Hendricks, C. D. & Johnson, W. L.
Item Type: Refine your search to only Article
open access

Enhanced fuel production in thorium fusion hybrid blankets utilizing uranium multipliers

Description: The multiplication of 14 MeV D-T fusion neutrons via (n,2n), (n,3n), and fission reactions by /sup 238/U is well known and established. This study consistently evaluates the effectiveness of a depleted (tails) UO/sub 2/ multiplier on increasing the production of /sup 233/U and tritium in a thorium/lithium fusion--fission hybrid blanket. Nuclear performance is evaluated as a function of exposure and zone thickness.
Date: January 25, 1979
Creator: Pitulski, R. H.; Chapin, D. L. & Klevans, E.
Item Type: Refine your search to only Article
open access

Evaluation of reaction kinetics for gas-powder systems

Description: Kinetic models for the reaction between a gas and powder are presented and discussed. Rates from the progressive conversion model are dependent on the amount of material present. This model is described by an equation that yields both the rate constant and the reaction order. The phase boundary model produces rates for topochemical reactions which are dependent on the powder surface area. Applications of these models to uranium powder hydriding are discussed. Computer programs for analyzing dat… more
Date: June 25, 1979
Creator: Stakebake, J.L. & Bixby, G.E.
Item Type: Refine your search to only Report
open access

Fusion blanket integral neutronics experiments

Description: The feasibility of conducting fusion blanket integral neutronics experiments at the Rotating Target Neutron Source-II (RTNS-II) accelerator facility and the Tokamak Fusion Test Reactor (TFTR) was investigated. RTNS-II recently became operational, and the TFTR is scheduled to begin D-T operations during 1983. The experiments would provide reaction rate data of direct importance to blanket design in environments (neutron spectra) close to those expected in actual blankets. Data of this kind are e… more
Date: January 25, 1979
Creator: Green, L.
Item Type: Refine your search to only Article
open access

Linear variable differential transformer and its uses for in-core fuel rod behavior measurements

Description: The linear variable differential transformer (LVDT) is an electromechanical transducer which produces an ac voltage proportional to the displacement of a movable ferromagnetic core. When the core is connected to the cladding of a nuclear fuel rod, it is capable of producing extremely accurate measurements of fuel rod elongation caused by thermal expansion. The LVDT is used in the Thermal Fuels Behavior Program at the U.S. Idaho National Engineering Laboratory (INEL) for measurements of nuclear … more
Date: June 25, 1979
Creator: Wolf, J.R.
Item Type: Refine your search to only Article
open access

MIT LMFBR blanket research project. Quarterly progress report, April 1-June 30, 1979

Description: In designing a plutonium-uranium core with thorium internal blankets there are several parameters that must be investigated to identify the design with the best performance. Choices include: the amount of moderation in the blanket, whether moderation is incorporated from the outset or added after an assembly is shuffled to the external blanket, and the cycle length both for the core and internal blanket assemblies. To investigate the effect of these parameters several core and blanket burnup an… more
Date: July 25, 1979
Creator: Driscoll, M.J.
Item Type: Refine your search to only Report
open access

Potential commercial reactor based on a small tokamak hybrid design

Description: An ignition tokamak reactor design has been obtained which represents a starting point for the conceptual design of a 1000 MW/sub e/ commercial system. The design includes Nb/sub 3/Sn superconducting coils (TF, OH, and SF), water-cooled fissile blanket (e.g., uranium oxide), positive-ion based neutral beams with no direct energy recovery, and an ignited plasma with a = 0.9 m and an aspect ratio A = 4.0. The TF coil bore has a vertical bore of 7 m and a horizontal bore of 5 m both of which are a… more
Date: January 25, 1979
Creator: Sink, D. A.
Item Type: Refine your search to only Article
open access

Preliminary design data package. Appendix C

Description: The design requirements, design philosophy, method and assumptions, and preliminary computer-aided design of the Near-Term Hybrid Vehicle including its electric and heat power units, control equipment, transmission system, body, and overall vehicle characteristics are presented. (LCL)
Date: July 25, 1979
Item Type: Refine your search to only Report
open access

Stainless steel blanket concept for tokamaks

Description: The purpose of this joint ORNL/Westinghouse Program is to develop a design concept for a tokamak reactor blanket system which satisfies engineering requirements for a utility environment. While previous blanket studies have focused primarily on performance issues (thermal, neutronic, and structural), this study has emphasized consideration of reliability, fabricability, and lifetime.
Date: January 25, 1979
Creator: Karbowski, J.S.; Lee, A.Y.; Prevenslik, T.V.; Ruck, G.W. & Shannon, T.E.
Item Type: Refine your search to only Article
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