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101-SY waste sample speed of sound/rheology testing for sonic probe program

Description: One problem faced in the clean-up operation at Hanford is that a number of radioactive waste storage tanks are experiencing a periodic buildup and release of potentially explosive gases. The best known example is Tank 241-SY-101 (commonly referred to as 101-SY) in which hydrogen gas periodically built up within the waste to the point that increased buoyancy caused a roll-over event, in which the gas was suddenly released in potentially explosive concentrations (if an ignition source were presen… more
Date: July 25, 1994
Creator: Cannon, N. S.
Partner: UNT Libraries Government Documents Department
open access

241-SY-101 air lance removal lessons learned

Description: An emergency task was undertaken to remove four air lances and one thermocouple (TC) tree from tank 241-SY-101 (SY-101). This resulted from video observation that these pipes were being severely bent during periodic gas release events that regularly occurred every three to four months. At the time, the gas release events were considered to be the number one safety issue within the US Department of Energy (DOE) complex. This emergency removal task was undertaken on an extremely short schedule th… more
Date: October 11, 1994
Creator: Moore, T. L. & Titzler, P. A.
Partner: UNT Libraries Government Documents Department
open access

500 CFM portable exhauster temperature and humidity analysis

Description: 500 cfm portable exhausters will be utilized on single shell tanks involved in saltwell pumping. This will be done, in part, to remove flammable gases from the tank vapor space. The exhaust filter train, fan, stack, and associated instrumentation and equipment are mounted on a portable skid. The design analysis and basis for the skid system design are documented in reference 1. A pumped drainage collection system is being added to the existing portable exhausters. Additional equipment and instr… more
Date: May 20, 1999
Creator: BIELICKI, B.E.
Partner: UNT Libraries Government Documents Department
open access

Accelerated aging of solid lubricants for the W76-1 TSL : effects of polymer outgassing.

Description: The behavior of MoS{sub 2} lubricants intended for the W76-1 TSL was evaluated after 17 and 82 thermal cycles, each lasting seven days and including a low temperature of -35 C and a high temperature of 93 C, in a sealed container containing organic materials. The MoS{sub 2} was applied by tumbling with MoS{sub 2} powder and steel pins (harperized), or by spraying with a resin binder (AS Mix). Surface composition measurements indicated an uptake of carbon and silicon on the lubricant surfaces af… more
Date: September 1, 2006
Creator: Dugger, Michael Thomas; Wallace, William O. & Huffman, Elizabeth M.
Partner: UNT Libraries Government Documents Department
open access

Acceptance test report, 241-SY-101 Flexible Receiver System, Phase 1 testing

Description: This document summarizes the results of the Phase 1 acceptance test of the 241-SY-101 Flexible Receiver System (FRS). This acceptance test consisted of a pressure-decay/leak test of the containment bag to verify that the seams along the length of the bag had been adequately sealed. The sealing integrity of the FRS must be verified to ensure that the release of waste and aerosols will be minimized during the removal of the test mixer pump from Tank 241-SY-101. The FRS is one of six major compone… more
Date: February 6, 1995
Creator: Ritter, G. A.
Partner: UNT Libraries Government Documents Department
open access

Acceptance test report, 241-SY-101 Flexible Receiver System, Phase 2 testing

Description: This document summarizes the results of the Phase 2 acceptance test of the 241-SY-101 Flexible Receiver System (FRS). The FRS is one of six major components of the Equipment Removal System, which has been designed to retrieve, transport, and store the test mixer pump currently installed in Tank 241-SY-101. The purpose of this acceptance test is to verify the strength of the containment bag and bag bottom cinching mechanism. It is postulated that 68 gallons of waste could be trapped inside the p… more
Date: February 6, 1995
Creator: Ritter, G. A.
Partner: UNT Libraries Government Documents Department
open access

Acceptance test report, 241-SY-101 Flexible Receiver System, Phase 3 testing

Description: This document summarizes the results of the phase 3 acceptance test of the 241-SY-101 Flexible Receiver System (FRS). The purpose of this acceptance test is to verify the sealing integrity of the FRS to ensure that the release of waste and aerosols will be minimized during the removal of the test mixer pump from Tank 241-SY-101. The FRS is one of six major components of the Equipment Removal System, which has been designed to retrieve, transport, and store the mixer pump. This acceptance test w… more
Date: February 6, 1995
Creator: Ritter, G. A.
Partner: UNT Libraries Government Documents Department
open access

Acquisition and reduction of data obtained from Tank 101-SY in-situ ball rheometer

Description: Development of the ball rheometer to measure rheological properties and density of the waste in Hanford Tank 241-SY-101 will be completed around September 1994. Since the ball rheometer project began, a mixer pump has been installed in this tank, and by all accounts this pump has been very successful at mitigating the flammable gas problem associated with Tank 101-SY. Present plans now call for the use of mixer pumps in several other tanks. The ball rheometer will serve as a diagnostic tool for… more
Date: December 1, 1994
Creator: Shepard, C. L.; Chieda, M. A. & Kirihara, L. J.
Partner: UNT Libraries Government Documents Department
open access

Adhesive Testing for the BTeV Pixel Detector

Description: The basic unit of the BTeV pixel detector is a multi-chip module which is comprised of a silicon sensor module bump-bonded to a number of readout chips. The pixel module will then be glued to a high intensity interconnect (HDI) cable using electrically conductive adhesive, and then onto a substrate using another kind of adhesive with reasonable thermal conductivity. This report is mostly addressed to the need of the latter--the substrate adhesive. The aim of this technical note is to summarize … more
Date: December 1, 2005
Creator: Lei, C. M.; Kwan, Simon; Hicks, D.; Hahn, Eileen; Hoffman, Jay; Austin, Sharon et al.
Partner: UNT Libraries Government Documents Department
open access

Advanced Photon Source accelerator ultrahigh vacuum guide

Description: In this document the authors summarize the following: (1) an overview of basic concepts of ultrahigh vacuum needed for the APS project, (2) a description of vacuum design and calculations for major parts of APS, including linac, linac waveguide, low energy undulator test line, positron accumulator ring (PAR), booster synchrotron ring, storage ring, and insertion devices, and (3) cleaning procedures of ultrahigh vacuum (UHV) components presently used at APS.
Date: March 1, 1994
Creator: Liu, C. & Noonan, J.
Partner: UNT Libraries Government Documents Department
open access

Alkali--Metal Corrosion Studies.

Description: No Description Available.
Date: October 31, 1969
Creator: Harms, W. O.; DeVan, J. H. & Litman, A. P.
Partner: UNT Libraries Government Documents Department
open access

ALUMINA-CLAD UO$sub 2$ FOR FUEL APPLICATIONS

Description: Using a special reactive form of high-purity alumina, claddings were applied to UO/sub 2/ particles by a tumbling technique. The clad pellets were isostatically pressed at 100,000 psi and then sintered at 2800 deg F in hydrogen. crack-free spheroidal pellets ranging from 1000 to 2000 mu in diameter were produced. The dense Al/sub 2/O/sub 3/ envelopes surrounding the UO/sub 2/ particles were estimated to be 300 to 500 mu thick. The Al/sub 2/O/sub 3/ claddings protected the UO/sub 2/ from oxidati… more
Date: February 18, 1959
Creator: Smalley, A.K.; Riley, W.C. & Duckworth, W.H.
Partner: UNT Libraries Government Documents Department
open access

Annual Summary Research Report in Physics, July 1, 1959-June 30, 1960

Description: Research in theoretical and experimental physics is summarized. The method of Wyse and Mayall for estimation of density distributions in stellar galaxies from observed rotational velocities was extended to a more realistic model. Methods of calculating pair production or bremsstrahiung cross sections are discussed. The presence of 10 previously unreported gamma rays was observed in the decay of Ag/sup 1//sup 1//sup 3/. The photoproton yield from Be/ sup 9/ was investigated. Theoretical studies … more
Date: September 1, 1960
Partner: UNT Libraries Government Documents Department
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An approximate-reasoning-based method for screening flammable gas tanks

Description: High-level waste (HLW) produces flammable gases as a result of radiolysis and thermal decomposition of organics. Under certain conditions, these gases can accumulate within the waste for extended periods and then be released quickly into the dome space of the storage tank. As part of the effort to reduce the safety concerns associated with flammable gas in HLW tanks at Hanford, a flammable gas watch list (FGWL) has been established. Inclusion on the FGWL is based on criteria intended to measure… more
Date: March 1, 1998
Creator: Eisenhawer, S.W.; Bott, T.F. & Smith, R.E.
Partner: UNT Libraries Government Documents Department
open access

Assessment of alternative mitigation concepts for Hanford flammable gas tanks

Description: This report provides a review and assessment of four selected mitigation concepts: pump jet mixing, sonic vibration, dilution, and heating. Though the relative levels of development of these concepts are quite different, some definite conclusions are made on their comparative feasibility. Key findings of this report are as follows. A mixer pump has proven to be a safe and effective active mitigation method in Tank 241-SY-101, and the authors are confident that mixer pumps will effectively mitig… more
Date: September 1994
Creator: Stewart, C. W.; Schienbein, L. A.; Hudson, J. D.; Eschbach, E. J. & Lessor, D. L.
Partner: UNT Libraries Government Documents Department
open access

Base program on energy related research. Quarterly progress report, May--July 1995

Description: Accomplishments are briefly summarized for the following tasks: oil and gas; advanced systems applications; environmental technologies; applied energy science; and remediation. Subtasks under oil and gas are: CROW{trademark} process modeling; miscible/immiscible gas injection processes; development of a portable data acquisition system and coalbed methane simulator; and tank bottom waste processing using the TaBoRR{trademark} process. Subtasks for advanced system applications are: development a… more
Date: August 1, 1995
Partner: UNT Libraries Government Documents Department
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Base program on energy related research. Quarterly technical progress report, November 1993--January 1994

Description: This report consists of brief reports on a number of processes involving: gas injection in oil wells; coalbed methane recovery simulation; a portable data acquisition system; development of a premium fuel from western coal; optimization of recycle oil process for eastern oil shales; solid waste management and waste product utilization; mercury recovery from coal; remedial action taken with contaminated soils; and heavy oil/plastics co-processing.
Date: July 1, 1994
Partner: UNT Libraries Government Documents Department
open access

Black chrome outgassing study

Description: This report covers why black chrome is of interest, why its outgassing is relevant, how the study was conducted, examples of resultant data, and a conclusion. Black chrome is of interest in several areas of activity. Vacuum outgassing characteristics must be known to establish the pumping speed requirements. How much gas is evolved determines the pump speed required. The species of gas evolved determines the type of pump. The outgassing characteristics must be known to determine needed preclean… more
Date: January 1, 1979
Creator: Beat, T.
Partner: UNT Libraries Government Documents Department
open access

Buoyancy and Dissolution of the Floating Crust Layer in Tank 241-SY-101 During Transfer and Back-Dilution

Description: To remediate gas retention in the floating crust layer and the potential for buoyant displacement gas releases from below the crust, waste will be transferred out of Hanford Tank 241-SY-101 (SY-101) in the fall of 1999 and back-diluted with water in several steps of about 100,000 gallons each. To evaluate the effects of back-dilution on the crust a static buoyancy model is derived that predicts crust and liquid surface elevations as a function of mixing efficiency and volume of water added duri… more
Date: November 22, 1999
Creator: Stewart, C. W.; Sukamto, J. H.; Cuta, J. M. & Rassat, S. D.
Partner: UNT Libraries Government Documents Department
open access

Buoyant Response of the Tank 241-SY-101 Crust to Transfer and Back-Dilution

Description: The mixer pump installed in Hanford Tank 241-SY-101 (SY-101) in July 1993 has prevented the large buoyant displacement gas release events (BD GRE) it has historically exhibited. But the absence of periodic disruption from GREs and the action of mixing have allowed the crust to grow. The accelerated gas retention has resulted in over 30 inches of waste level growth and the flammable gas volume stored in the crust has become a hazard. To remediate gas retention in the crust and the potential for … more
Date: November 8, 1999
Creator: Stewart, CW
Partner: UNT Libraries Government Documents Department
open access

Calculated CIM Power Distributions for Coil Design

Description: Excessive bed expansion and material expulsion have occurred during experiments with the 3-inch diameter Cylindrical Induction Melter (CIM). Both events were attributed in part to the high power density in the bottom of the melter and the correspondingly high temperatures there. It is believed that the high temperatures resulted in the generation of gasses at the bottom of the bed which could not escape. The gasses released during heating and the response of the bed to gas evolution depend upon… more
Date: February 17, 1999
Creator: Hardy, B. J.
Partner: UNT Libraries Government Documents Department
open access

CALCULATION OF THE REQUIREMENTS FOR OPERATION OF REFRACTORY-METAL COMPONENTS AT HIGH TEMPERATURE IN VACUUM

Description: Equations based on kinetic theory relate the contamination of refractory metals in vacuum to the appropriate variables. Several examples are given for which the allowable system pressures are calculated. The examples illustrate the effect of varying several parameters. The importance of the sticking factor for active gases on hot refractory metals and its effect on the system design are discussed. The data for estimating the sticking factor for O/sub 2/ on Nb are given, along with some estimate… more
Date: September 18, 1962
Creator: Clausing, R.E.
Partner: UNT Libraries Government Documents Department
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