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Semiconductor Bridge Cable Test

Description: The semiconductor bridge (SCB) is an electroexplosive device used to initiate detonators. A C cable is commonly used to connect the SCB to a firing set. A series of tests were performed to identify smaller, lighter cables for firing single and multiple SCBs. This report provides a description of these tests and their results. It was demonstrated that lower threshold voltages and faster firing times can be achieved by increasing the wire size, which reduces ohmic losses. The RF 100 appears to be a reasonable substitute for C cable when firing single SCBs. This would reduce the cable volume by 68% and the weight by 67% while increasing the threshold voltage by only 22%. In general, RG 58 outperforms twisted pair when firing multiple SCBs in parallel. The RG 58's superior performance is attributed to its larger conductor size.
Date: January 1, 2002
Creator: KING, TONY L.
Partner: UNT Libraries Government Documents Department

Testing of the Sunstove Organization`s Sunstove Solar Oven

Description: A Sunstove Organization`s Sunstove was tested at Sandia`s Solar Thermal Test Facility. It was instrumented with five type K thermocouples to determine warm-up rates when empty and when a pot containing two liters of water was placed inside. It reached inside air temperatures above 115{degrees}C (240{degrees}F). It heated two liters of water from room temperature to 80{degrees}C (175{degrees}F) in about two hours. Observations were made on the cooling and reheating rates during a cloud passage. The adverse effects of wind on the operation of the solar oven were also noted.
Date: March 1, 1997
Creator: Moss, T.A.
Partner: UNT Libraries Government Documents Department

Issues associated with manipulator-based waste retrieval from Hanford underground storage tanks with a preliminary review of commercial concepts

Description: Westinghouse Hanford Company (WHC) is exploring commercial methods for retrieving waste from the underground storage tanks at the Hanford site in south central Washington state. WHC needs data on commercial retrieval systems equipment in order to make programmatic decisions for waste retrieval. Full system testing of retrieval processes is to be demonstrated in phases through September 1997 in support of programs aimed to Acquire Commercial Technology for Retrieval (ACTR) and at the Hanford Tanks Initiative (HTI). One of the important parts of the integrated testing will be the deployment of retrieval tools using manipulator-based systems. WHC requires an assessment of a number of commercial deployment systems that have been identified by the ACTR program as good candidates to be included in an integrated testing effort. Included in this assessment should be an independent evaluation of manipulator tests performed to date, so that WHC can construct an integrated test based on these systems. The objectives of this document are to provide a description of the need, requirements, and constraints for a manipulator-based retrieval system; to evaluate manipulator-based concepts and testing performed to date by a number of commercial organizations; and to identify issues to be resolved through testing and/or analysis for each concept.
Date: September 17, 1996
Creator: Berglin, E.J.
Partner: UNT Libraries Government Documents Department

Refinement, testing, and application of an Integrated Data Assimilation/Sounding System (IDASS) for the DOE/ARM Experimental Program. Final report for period September 20, 1990 - May 8, 1997

Description: This report describes work done by NCAR under the ''Refinement, Testing, and Application of an Integrated Data Assimilation/Sounding System (IDASS) for the DOE/ARM Experimental Program''. It includes a discussion of the goals, findings and a list of 27 journal articles, 92 non-refereed papers and 30 other presentations not associated with a formal publication.
Date: April 9, 2002
Creator: Parsons, David B.
Partner: UNT Libraries Government Documents Department

Reproducibility: A Major Source of Uncertainty in Weighing

Description: Balance confirmation tests usually include eccentricity, linearity, and repeatability. The latter is a measure of the random variability of the instrument. Further, repeatability is usually based on 10 consecutive measurements of a mass standard in a short period of time. The test results are used to verify the balance performs within manufacturer's specifications. These test results are often used in calculating an estimate of the uncertainty in measurements made with the balance. Uncertainty estimates, used to quantify the quality of measurements, must accurately estimate the magnitude of these errors. Does the repeatability test provide a realistic estimate of the random variation in the weighing process? The authors had concerns that it may not. The reproducibility estimate of the balance needs to be determined for the variables that will change between measurements of the same material while the other parameters are held constant by procedures and training.
Date: May 21, 2003
Creator: Clark, J.P.
Partner: UNT Libraries Government Documents Department

Development & Testing of Industrial Scale, Coal Fired Combustion System, Phase 3

Description: In the third quarter of calendar year 1997, 10 days of tests on the 20 MMBtu/hr combustor-boiler facility were performed. The total test days on the Philadelphia facility to the end of September 1997 was 93, of which 19 tests were implemented as part of another DOE project. This exceeds the planned 63 test days for this project. Key project objectives have been exceeded, including NO emissions as low as 0.07 lb/MMBtu and SO emissions as low as 0.2 x 2 lb/MMBtu. The tests in the present quarter focussed on further optimizing post-combustion sorbent injection for SO2 and NOx control processes. The results were in the same range as in previous tests. In addition, initial tests of Coal Tech�s post-combustion NOx control process were implemented on a 100 MW and a 37 MW utility boiler, and NOx reductions as high as 40% were measured in the latter boiler.
Date: January 15, 1998
Creator: Zauderer, Bert
Partner: UNT Libraries Government Documents Department

RHIC status

Description: The design and construction status of the Relativistic Heavy Ion Collider, RHIC, which is in the seventh year of a nine year construction cycle, is discussed. Those novel performance features of a heavy ion collider that are distinct from hadron colliders in general are noted. These features are derived from the experimental requirements of operation with a variety of ion species over a wide energy range, including collisions between protons and ions, and between ions of unequal energies. Section 1 gives a brief introduction to the major parameters and overall layout of RHIC. A review of the superconducting magnet program is given in Section 2. Activities during the recent Sextant Test are briefly reviewed in Section 3. Finally, Section 4 presents the plans for RHIC commissioning in 1999.
Date: August 1, 1997
Creator: Peggs, S.
Partner: UNT Libraries Government Documents Department

Testing of the Burns-Milwaukee`s Sun Oven

Description: A Burns-Milwaukee Sun Oven was tested at Sandia`s Solar Thermal Test Facility. It was instrumented with five type K thermocouples to determine warm-up rates when empty and when a pot containing two liters of water was placed inside. It reached inside air temperatures above 160{degrees}C (320{degrees}F). It heated two liters of water from room temperatures to 80{degrees}C, (175{degrees}F), in 75 minutes. Observations were also made on the cooling and reheating rates during a cloud passage. The adverse effects of wind on operation of the solar oven was also noted.
Date: March 1, 1997
Creator: Moss, T.A.
Partner: UNT Libraries Government Documents Department

W-026, acceptance test report TRU empty drum compactor (submittal{number_sign}634)

Description: On 10/19/96 and 10/21/96, the 06/04/96 version of the Empty Drum Compactor Acceptance Test Procedure was used to perform tests by INET Corporation at the Hanford WRAP facility. The INET compaction components were installed in the Diversified glovebox. The Diversified glovebox and cart and the INET compaction components, EDC HPU and drum centering device constitute the Empty Drum Compactor.
Date: June 18, 1997
Creator: Watson, T.L.
Partner: UNT Libraries Government Documents Department

IGT Stack No. 6 (SDG{ampersand}E-1) Test Plan and Component Specification Document: Topical report, March 1996

Description: The purpose of Stack-6 (SDG{ampersand}E-1) is to scale up and demonstrate the long term performance and endurance characteristics of the IMHEX stack design and the Generation No. 2 cell components (improved pore matching electrodes) in a 20 cell subscale stack test.
Date: December 31, 1997
Partner: UNT Libraries Government Documents Department

Development of high temperature catalytic membrane reactors. Final report

Description: Early efforts in 1992 were focused on relocating the membrane reactor system from Alcoa Separation Technology, Inc.`s Warrendale, PA facility to laboratory space at the University of Pittsburgh Applied Research Center (UPARC) in Harmarville, PA following the divestiture of Alcoa Separations to US Filter, Inc. Reconstruction was completed in March, 1992, at which time the reactor was returned to ethylbenzene dehydrogenation service. Efforts on ethylbenzene dehydrogenation to styrene focused on optimizing hybrid reactor performance relative to packed bed operation. Following this, the reactor system was converted to isobutane dehydrogenation. Experimentation on isobutane dehydrogenation focused on design of an inert reactor, evaluation of commercial light alkane dehydrogenation catalysts, and modeling of membrane reactor performance relative to the performance of a packed bed reactor. This report summarizes the effort in 1992 on the development of ceramic membranes as dehydrogenation reactors. In addition, outside interactions on behalf of this investigation are discussed.
Date: February 28, 1992
Creator: Gallaher, G.; Gerdes, T. & Gregg, R.
Partner: UNT Libraries Government Documents Department

Excitation Methods for Bridge Structures

Description: This paper summarizes the various methods that have been used to excited bridge structures during dynamic testing. The excitation methods fall into the general categories of ambient excitation methods and measured-input excitation methods. During ambient excitation the input to the bridge is not directly measured. In contrast, as the category label implies, measured-input excitations are usually applied at a single location where the force input to the structure can be monitored. Issues associated with using these various types of measurements are discussed along with a general description of the various excitation methods.
Date: February 8, 1999
Creator: Farrar, C.R.; Duffy, T.A.; Cornwell, P.J. & Doebling, S.W.
Partner: UNT Libraries Government Documents Department


Description: As part of the Low-Energy Demonstration Accelerator (LEDA) portion of the Advanced Accelerator Applications (AAA) project we have fabricated and will perform high-power RF tests on Section 2 of the 700-MHz Coupled-Cavity Drift-Tube Linac (CCDTL). This CCDTL section contains six, two-gap accelerating cells. This portion of the CCDTL was designed to accelerate the 100-mA, LEDA RFQ proton beam to 7.3 MeV. This paper reports on the process and results of tuning Section 2 leading up to high-power RF testing.
Date: June 1, 2001
Creator: Rybarcyk, L. & Wood, R
Partner: UNT Libraries Government Documents Department

Test plan and report for maxi-drill model 3030 foot-clamp

Description: This test plan and report defines the testing performed to determine whether the MAXIDRILL Model 3030 Footclamp meets the needs of RMCS operations. This document reports the outcome of the test pesformed. The new footclamp will enhance the safety of RMCS operations.
Date: June 24, 1999
Creator: Boger, R. M.
Partner: UNT Libraries Government Documents Department

Active Control of Magnetically Levitated Bearings

Description: This report summarizes experimental and test results from a two year LDRD project entitled Real Time Error Correction Using Electromagnetic Bearing Spindles. This project was designed to explore various control schemes for levitating magnetic bearings with the goal of obtaining high precision location of the spindle and exceptionally high rotational speeds. As part of this work, several adaptive control schemes were devised, analyzed, and implemented on an experimental magnetic bearing system. Measured results, which indicated precision positional control of the spindle was possible, agreed reasonably well with simulations. Testing also indicated that the magnetic bearing systems were capable of very high rotational speeds but were still not immune to traditional structural dynamic limitations caused by spindle flexibility effects.
Date: March 1, 2001
Partner: UNT Libraries Government Documents Department

A study of the ignition processes in a center-hole-fired thermal battery

Description: The ignition processes that take place during activation of a 16 cell, center hole fired thermal battery were examined by monitoring the voltage of each cell during activation. The average rise time of each cell to a voltage of 1.125 V was determined for the LiSi/LiCl-LiBr-LiF/FeS{sub 2} electrochemical system. The effects of heat pellet composition, center hole diameter, and the load on the activation parameters were examined for three different igniters. A large variability in individual cell performance was evident along with cell reversal, depending on the location of the cell in the stack. It was not possible to draw detailed statistical information of the relative ignition sequence due to the intrinsic large scatter in the data.
Date: April 1, 1998
Creator: Guidotti, R.A. & Reinhardt, F.W.
Partner: UNT Libraries Government Documents Department

Cathode limited charge transport and performance of thin-film rechargeable lithium batteries

Description: Several types of thin-film rechargeable batteries based on lithium metal anodes and amorphous V{sub 2}O{sub 5} (aV{sub 2}O{sub 5}), LiMn{sub 2}O{sub 4}, and LiCoO{sub 2} cathodes have been investigated in this laboratory. In all cases, the current density of these cells is limited by lithium ion transport in the cathodes. This paper, discusses sources of this impedance in Li-aV{sub 2}O{sub 5} and Li-LiMn{sub 2}O{sub 4} thin-film cells and their effect on cell performance.
Date: November 1, 1994
Creator: Bates, J.B.; Hart, F.X.; Lubben, D.; Kwak, B.S. & van Zomeren, A.
Partner: UNT Libraries Government Documents Department