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OCH Spacer Design

Description: The purpose of the OCH module spacers is to keep the given dimension of .224-inch between the 1.83-inch absorber plates. This distance is determined by two liquid argon gaps of .09-inch each and a readout board of .044-inch. The spacer should be made out of a material that would give a minimum thermal contraction movement. Also the dimension of the spacer will be determined dependent upon the load applied to the spacers and the strength of the material chosen. Considering both thermal contracti… more
Date: February 4, 1987
Creator: Kurita, C. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Design and fabrication of end spacers for a 13T Nb{sub 3}Sn dipole magnet

Description: A 13 Tesia R&D dipole magnet is currently being constructed using Nb{sub 3}Sn superconducting cable. The four-layer ``cosine-theta`` magnet uses a wide cable ({approximately}15 mm) that will undergo a 650 C reaction after each layer is wound. About 75 bronze spacers at the magnet ``ends`` separate the winding blocks in such a way that the stored strain energy in the cable is minimized and the integrated field harmonics are reduced. Wax prototypes of the designed spacers were made on a 5-axis mi… more
Date: October 17, 1994
Creator: Caspi, S.; Ghiorso, W.B. & Wandesforde, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Transverse Pressure Difference Across Staggered and Inclined Spacers in the Art Fuel-to-NaK Heat Exchanger

Description: The ART fuel-to-NaK heat exchanger was modified with six 60 staggered spacers and six 60 inclined spacers alterately placed. Transverse pressure taps were installed across one spacer of each type. The average transverse pressure difference across each instrumented spacer was expressed in terms of the ratio of the transverse pressure difference to the quantity, pu/sup 2//2g,, over the Reynolds modulus range of 3,000 to 8,O00. For the inclined spacer, this term fell between 1.4 and 1.1; for the s… more
Date: June 29, 1956
Creator: Wantland, J. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A validation of the WINDOW4/FRAME3 linear interpolation methodology

Description: The validity of a method to reduce the total number of computer simulations which must be run to determine the U-values of a window product line with multiple glazing options is examined. The accuracy and limits of this method, which uses the WINDOW4 and FRAME simulation programs, is evaluated by comparing the edge, frame, and total window U-values calculated on the basis of single point FRAME simulations to those U-values as calculated on the basis of four point FRAME simulations combined with… more
Date: August 1, 1993
Creator: Beck, F. A. & Arasteh, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

New coil end design for the RHIC Arc dipole

Description: To simplify production, the number of parts in the ends, about 64 in each coil end, was reduced by using thicker spacers between the turns, to about 23. A new computer program was written which gives a description of each turn closely resembling the turn as made. The output of this program is processed by newly written computer programs which change the parts descriptions into forms which are used by a computer-controlled, 5-axis milling machine. The solid spacers replace spacers assembled from… more
Date: June 1, 1994
Creator: Morgan, G. H.; Morgillo, A.; Power, K. & Thompson, P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Uranium Alloy Fuel Element Fabrication Development for HNPF Core I

Description: A fuel element, consisting of a cluster of stainlesssteel-clad sodium- bonded, U - 10 wt.% Mo fuel rods, has been proposed for the first core loading in the Hallam Nuclear Power Facility. Analytical data on density, soundness, chemical composition, dimensions, and surface finish were obtained from more than 100 heats of fuel slugs which were vacuum cast in graphite molds. The quality levels obtained were satisfactory, and casting was proven to be a feasible fabrication method for U - 10 wt.% Mo… more
Date: November 1, 1960
Creator: Cobb, S. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Galvanic corrosion test measurements zircaloy process tube hydriding problem

Description: In September of 1965, a program was launched to investigate the cause and to determine appropriate corrective or preventive action for hydriding of Zircaloy process tubes in K Reactors. One phase of the investigation was specifically directed to the measurement of galvanic corrosion currents flowing between the Zircaloy process tube and the aluminum spacers. Production Test IP-807 authorized in-reactor galvanic test measurements in order to secure data relating to the hydriding problem. It is t… more
Date: August 21, 1967
Creator: Thorson, W. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Cleanup Verification Package for the 118-C-1, 105-C Solid Waste Burial Ground

Description: This cleanup verification package documents completion of remedial action for the 118-C-1, 105-C Solid Waste Burial Ground. This waste site was the primary burial ground for general wastes from the operation of the 105-C Reactor and received process tubes, aluminum fuel spacers, control rods, reactor hardware, spent nuclear fuel and soft wastes.
Date: July 25, 2007
Creator: Capron, M. J. Appel and J. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A CFD M&S PROCESS FOR FAST REACTOR FUEL ASSEMBLIES

Description: A CFD modeling and simulation process for large-scale problems using an arbitrary fast reactor fuel assembly design was evaluated. Three dimensional flow distributions of sodium for several fast reactor fuel assembly pin spacing configurations were simulated on high performance computers using commercial CFD software. This research focused on 19-pin fuel assembly “benchmark” geometry, similar in design to the Advanced Burner Test Reactor, where each pin is separated by helical wire-wrap spacers… more
Date: September 1, 2008
Creator: Hamman, Kurt D. & Berry, Ray A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Dynamic load test of Arquin-designed CMU wall.

Description: The Arquin Corporation has developed a new method of constructing CMU (concrete masonry unit) walls. This new method uses polymer spacers connected to steel wires that serve as reinforcing as well as a means of accurately placing the spacers so that the concrete block can be dry stacked. The hollows of the concrete block are then filled with grout. As part of a New Mexico Small Business Assistance Program (NMSBA), Sandia National Laboratories conducted a series of tests that dynamically loaded … more
Date: February 1, 2010
Creator: Jensen, Richard Pearson
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Testing of Compact Bolted Fasteners with Insulation and Friction-Enhanced Shims for NCSX

Description: The fastening of the National Compact Stellarator Experiment's (NCSX) modular coils presented a number of engineering and manufacturing challenges due to the high magnetic forces, need to control induced currents, tight tolerances and restrictive space envelope. A fastening method using high strength studs, jack nuts, insulating spacers, bushings and alumina coated shims was developed which met the requirements. A test program was conducted to verify the design. The tests included measurements … more
Date: February 4, 2009
Creator: L. E. Dudek, J.H. Chrzanowski, G. Gettelfinger, P. Heitzenroeder, S. Jurczynski, M. Viola and K. Freudenberg
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Static load test of Arquin-designed CMU wall.

Description: The Arquin Corporation has developed a new method of constructing CMU (concrete masonry unit) walls. This new method uses polymer spacers connected to steel wires that serve as reinforcing as well as means of accurately placing the spacers so that the concrete block can be dry stacked. The hollows of the concrete block used in constructing the wall are then filled with grout. As part of a New Mexico Small Business Assistance Program (NMSBAP), Sandia National Laboratories conducted a series of t… more
Date: December 1, 2008
Creator: Jensen, Richard Pearson & Cherry, Jeffery L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effects of duct configuration on flow and temperature structure in sodium-cooled 19-rod simulated LMFBR fuel bundles with helical wire-wrap spacers

Description: Thermal-hydrodynamic testing of sodium-cooled 19-rod simulated LMFBR fuel bundles is being conducted at the O ak Ridge National Laboratory in the Fuel Failure Mockup (FFM), an engineering-scale high-temperature sodium facility which provides prototypic flows, temperatures and power densities. Electrically heated bundles have been tested with two scalloped and two hexagonal duct configurations. Peripheral helical flows, attributed to the spacers, have been observed with strengths dependent upon … more
Date: January 1, 1976
Creator: Wantland, J. L.; Fontana, M. H.; Gnadt, P. A.; Hanus, N.; MacPherson, R. E. & Smith, C. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Honeycomb spacer crush stength test results

Description: This report discusses aluminum honeycomb spacers, which are used as an energy absorbent material in shipping packages for off site shipment of radioactive materials and which were ordered in two crush strengths, 1,000 psi and 2,000 psi for use in drop tests requested by the Packaging and Transportation group as part of the shipping container rectification process. Both the group as part of the shipping container rectification process. Both the vendor and the SRTC Materials Laboratory performed … more
Date: September 15, 1993
Creator: Leader, D. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Temperature distributions in a reactor fuel plate

Description: A report about the effects upon the fuel plate temperatures of introducing channel spacers into the proposed curved plate subassembly for the super critical water reactor.
Date: 1954
Creator: Redmond, R. F.; Chastain, Joel W.; Long, J. K.; Jung, R. G. & Fawcett, Sherwood L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Initiation Pressure Thresholds from Three Sources

Description: Pressure thresholds are minimum pressures needed to start explosive initiation that ends in detonation. We obtain pressure thresholds from three sources. Run-to-detonation times are the poorest source but the fitting of a function gives rough results. Flyer-induced initiation gives the best results because the initial conditions are the best known. However, very thick flyers are needed to give the lowest, asymptotic pressure thresholds used in modern models and this kind of data is rarely avail… more
Date: February 28, 2007
Creator: Souers, P. C. & Vitello, P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Impact of Aluminum on Anticipated Corrosion in a Flooded SNF Multi Canister Overpack (MCO)

Description: Corrosion reactions in a flooded MCO are examined to determine the impact of aluminum corrosion products (from aluminum basket grids and spacers) on bound water estimates and subsequent fuel/environment reactions during storage. The mass and impact of corrosion products were determined to be insignificant, validating the choice of aluminum as an MCO component and confirming expectations that no changes to the Technical Databook or particulate mass or water content are necessary.
Date: July 6, 1999
Creator: Duncan, D. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Preliminary analysis of the impact of the General Electric wave beam grid spacer on GCFR core performance. [Thermal/hydraulic; mechanical]

Description: The three analyses relate to thermal/hydraulic and mechanical design evaluations of a staggered wave beam grid spacer for a GCFR fuel assembly. The calculated pressure loss coefficient was compared to the loss coefficent measured in water flow tests of an LMFBR assembly. The calculated value was 15% higher than the average experimental value for a Reynolds Number of 40,000. The heat transfer analysis showed that the wave beam caused a temperature increase in the cladding of approximately 50/sup… more
Date: January 1, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Test Results for RD3c, A Nb3Sn Common-Coil Racetrack Dipole Magnet

Description: The Superconducting Magnet Group at Lawrence Berkeley Laboratory has been developing racetrack technology for economical, high-field accelerator magnets from brittle superconductor. Recent tests have demonstrated (1) robust, reusable, double-layer, flat racetrack, wind and react Nb{sub 3}Sn coils, (2) a reusable, easily assembled, coil-support structure that can minimize conductor movement, and (3) 15T dipole fields, with no degradation. RD3c is our first attempt to compare measured and calcula… more
Date: August 1, 2002
Creator: Lietzke, A. F.; Caspi, S.; Coccoli, M.; Dietderich, D. R.; Ferracin, P.; Gourlay, S. A. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Finite element analyses of continuous filament ties for masonry applications:final report for the Arquin Corporation.

Description: Finite-element analyses were performed to simulate the response of a hypothetical masonry shear wall with and without continuous filament ties to various lateral loads. The loads represented three different scenarios: (1) 100 mph wind, (2) explosive attack, and (3) an earthquake. In addition, a static loading analysis and cost comparison were performed to evaluate optimal materials and designs for the spacers affixed to the filaments. Results showed that polypropylene, ABS, and polyethylene (hi… more
Date: June 1, 2006
Creator: Quinones, Armando (Arquin Corporation, La Luz, NM); Bibeau, Tiffany A. & Ho, Clifford Kuofei
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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