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Seismic analysis of reactor exhaust air filter compartment

Description: The Filter Compartment (FC) in this analysis is a generic reactor airborne activity confinement filter compartment which possesses all the essential physical and mechanical properties of the Savannah River Site (SRS) confinement filters of Reactor Buildings K, L, and P. The filters belong to the Airborne Activity Confinement System (AACS). These filters absorb a significant amount of radioactive effluents from the exhausting air. The seismic excitation is input indirectly from the output of the… more
Date: September 24, 1990
Creator: Gong, Chung; Funderburk, E.L. & Jerrell, J.W.
Partner: UNT Libraries Government Documents Department
open access

A first simulation study of the barrel-endcap transition region in a calorimeter of the scintillator tile design

Description: We have made a first study of the calorimetric response to 10 GeV/c charged pions in the transition region between barrel and endcap for the scintillator-tile design pursued at Argonne National Laboratory using the simulation program ANLSIM. For (very nearly) projective tower orientations in the barrel, the crack appears deep within a narrow angular range, causing a loss of the response in that region up to 40%. Pointing the towers onto the beam axis 35 cm or more away from the nominal-interact… more
Date: August 24, 1990
Creator: Proudfoot, J. & Trost, H. J.
Partner: UNT Libraries Government Documents Department
open access

Establishment and maintenance of a coal sample bank and data base

Description: In the project status report for 4/9/90--7/8/90, Table 2 presented update results of a comparative study of coal sample deterioration in several container types including foil laminate bags. This table contained an erroneous entry (foil laminate bag {minus}20 mesh, alkali extraction 65.4% transmittance). The alkali extraction test on {minus}20 mesh coal stored in foil laminate bags for 52 weeks was repeated in duplicate on another bag (after 64 weeks total storage) resulting in a measurement of… more
Date: October 24, 1990
Creator: Davis, A.
Partner: UNT Libraries Government Documents Department
open access

(Fourth international conference on fusion reactor materials)

Description: This report summarizes the International Conference on Fusion Reactor Materials (ICFRM-4) which was held December 4--9, 1989, in Kyoto, Japan, as well as the results of several workshops, planning meetings, and laboratory visits made by the travelers. The ICFRM-4 is the major forum to present and exchange information on materials research and development in support of the world's fusion development efforts. About 360 papers were presented by the 347 conference attendees. Highlights of the confe… more
Date: January 24, 1990
Creator: Bloom, E. E.
Partner: UNT Libraries Government Documents Department
open access

Janus Upgrade using brewster angle disk amplifier technology. [Janus laser system]

Description: The Nuclear Test and Experimental Science Program (NTES) has requested that the Laser Program design and price an upgrade to the Janus laser system (JANUS UPGRADE) capable of reliably delivering in excess of 200 joules per beamline in a range of pulse forms to three experiment areas. The facility is to have the following characteristics: three experiment areas, two high energy beams, each with 200--400 joule/1 ns at a wavelength of 1.053 or 1.064 microns, and 125--250 J/1 ns when frequency doub… more
Date: October 24, 1990
Creator: Hunt, J.; Boben, R.; Blocker, R.; Clark, J.; Henesian, M.; Victoria, J. et al.
Partner: UNT Libraries Government Documents Department
open access

Application of sedimentation model to uniform and segregated fluidized beds

Description: This paper incorporates concepts of unimodal and bimodal sedimentation to develop a model that accurately predicts bed expansion during particulate fluidization. During bed expansion a particle is considered to be fluidized not by the pure fluid, but by a slurry consisting of the pure fluid and other surrounding particles. The contributions of the other surrounding particles to the additional buoyant and drag forces are accounted for with the use of effective fluid or slurry properties, density… more
Date: October 24, 1990
Creator: Shippy III, J.L. & Watson, J. S.
Partner: UNT Libraries Government Documents Department
open access

Final environmental information volume for the coke oven gas cleaning project at the Bethlehem Steel Corporation Sparrows Point Plant

Description: Bethelehem Steel Corporation (BSC) is planning to conduct a demonstration project involving an integrated system that can be retrofitted into coke oven gas handling systems to address a variety of environmental and operational factors in a more cost-effective manner. Successful application of this technology to existing US coke plants could: (1) reduce emissions of sulfur dioxide, cyanide, and volatile organic compounds (including benzene) (2) reduce the cost and handling of processing feed che… more
Date: April 24, 1990
Partner: UNT Libraries Government Documents Department
open access

(Irradiation embrittlement of reactor pressure vessels)

Description: The traveler served as a member of the two-man US Nuclear Regulatory Commission sponsored team who visited the Prometey Complex in Leningrad to assess the potential for expanded cooperative research concerning integrity of the primary pressure boundary in commercial light-water reactors. The emphasis was on irradiation embrittlement, structural analysis, and fracture mechanics research for reactor pressure vessels. At the irradiation seminar in Cologne, presentations were made by German, French… more
Date: September 24, 1990
Creator: Corwin, W.R.
Partner: UNT Libraries Government Documents Department
open access

Proof of concept and performance optimization of high gravity batch type centrifuge for dewatering fine coal

Description: Coal Technology Corporation (CTC) believes that the new CTC high gravity, high production, batch type centrifugal dryer technology can play a significant role in improving the product quality as well as costs of operation in coal processing plants. It is further believed that the new centrifugal dryer technology can form an important part in systems used to clean up the millions of tons of coal fines in refuse piles and ponds. It is anticipated that the new centrifuge can become an important an… more
Date: July 24, 1990
Creator: Smith, L. B. & Durney, T. E. Jr.
Partner: UNT Libraries Government Documents Department
open access

A numerical theory of lattice gas and lattice Boltzmann methods in the computation of solutions to nonlinear advective-diffusive systems

Description: A numerical theory for the massively parallel lattice gas and lattice Boltzmann methods for computing solutions to nonlinear advective-diffusive systems is introduced. The convergence theory is based on consistency and stability arguments that are supported by the discrete Chapman-Enskog expansion (for consistency) and conditions of monotonicity (in establishing stability). The theory is applied to four lattice methods: Two of the methods are for some two-dimensional nonlinear diffusion equatio… more
Date: September 24, 1990
Creator: Elton, A.B.H.
Partner: UNT Libraries Government Documents Department
open access

(Acidic deposition and the environment)

Description: The travelers presented several papers at the Fourth International Conference on Acidic Deposition. These covered the following topics: atmospheric chemistry and deposition of airborne nitrogen compounds, soil solution chemistry in high-elevation spruce forests, and forest throughfall measurements for estimating total sulfur deposition to ecosystems. In addition, S. E. Lindberg was invited to organize and chair a conference session on Throughfall and Stemflow Experiments, and to present an invi… more
Date: October 24, 1990
Creator: Garten, C. T.; Lindberg, S. E. & Van Miegroet, H.
Partner: UNT Libraries Government Documents Department
open access

Collisional Processes of Interest in MFE Plasma Research

Description: Research on this grant is devoted to the calculation of heavy particle collision cross sections needed for diagnostic studies of magnetic fusion plasmas. This work requires the development and testing of new theoretical methods, with the implementation of benchmarked techniques to collisions pertinent to fusion reactors. Within the last context, we have provided charge-exchange-recombination cross sections to specific n,1-levels for diagnostic studies on TFTR and for a major compilation for IAE… more
Date: May 24, 1990
Creator: Olson, R. E.
Partner: UNT Libraries Government Documents Department
open access

Particle size distribution of indoor aerosol sources

Description: As concern about Indoor Air Quality (IAQ) has grown in recent years, it has become necessary to determine the nature of particles produced by different indoor aerosol sources and the typical concentration that these sources tend to produce. These data are important in predicting the dose of particles to people exposed to these sources and it will also enable us to take effective mitigation procedures. Further, it will also help in designing appropriate air cleaners. A new state of the art techn… more
Date: October 24, 1990
Creator: Shah, K.B.
Partner: UNT Libraries Government Documents Department
open access

Report of Foreign Travel of S. H. Liu, September 1990

Description: The author was one of 26 invited lecturers to discuss the latest developments of the physical aspects of electrochemistry. He interacted extensively with other lecturers and many participants from developing countries. He also visited with the Director of the Italian Synchrotron Radiation Source now under construction in Trieste, Italy.
Date: September 24, 1990
Creator: Liu, S. H.
Partner: UNT Libraries Government Documents Department
open access

Theoretical approach for enhanced mass transfer effects in-duct flue gas desulfurization processes

Description: During the reporting of July 1 to September 30, 1990, bench- and pilot-scale experiments were conducted to measure mass transfer and kinetic rates under simulated duct-injection conditions. This report describes the results of stirred-tank modelling experiments; experiments with moist solids in a short-time differential reactor in order to study and compare SO{sub 2} conversions; an investigation of the agglomeration of damp Ca(OH)-based solids; and evaluation of speciality sorbents.
Date: October 24, 1990
Partner: UNT Libraries Government Documents Department
open access

The single electron chemistry of coals. [Quarterly] report, April 1, 1990--June 30, 1990

Description: TCNQ Charge Transfer Complexes with Coals. TCNQ can be readily deposited in coals from pyridine solution. IR spectra of TCNQ and TCNQ in Illinois No. 6 coal are shown in Fig. 1. It is clear that the stretching frequency has been shifted by the full 44 cm{sup {minus}1} caused by the transfer of a single electron. Similar behavior has been observed with a variety of coals, including lignites, subbituminous and a range of bituminous coals. There are two possible explanations for the observed shift… more
Date: July 24, 1990
Creator: Larsen, John W. & Flowers, Robert A., II
Partner: UNT Libraries Government Documents Department
open access

Establishment and maintenance of a coal sample bank and data base. [Quarterly] project status report, July 9, 1990--October 8, 1990

Description: In the project status report for 4/9/90--7/8/90, Table 2 presented update results of a comparative study of coal sample deterioration in several container types including foil laminate bags. This table contained an erroneous entry (foil laminate bag {minus}20 mesh, alkali extraction 65.4% transmittance). The alkali extraction test on {minus}20 mesh coal stored in foil laminate bags for 52 weeks was repeated in duplicate on another bag (after 64 weeks total storage) resulting in a measurement of… more
Date: October 24, 1990
Creator: Davis, A.
Partner: UNT Libraries Government Documents Department
open access

Applications of Micellar Enzymology to Clean Coal Technology. Third Quarterly Report

Description: This project is designed to develop methods for pre-combustion coal remediation by implementing recent advances in enzyme biochemistry. The novel approach of this study is incorporation of hydrophilic oxidative enzymes in reverse micelles in an organic solvent. Enzymes from commercial sources or microbial extracts are being investigated for their capacity to remove organic sulfur from coal by oxidation of the sulfur groups, splitting of C-S bonds and loss of sulfur as sulfuric acid. Dibenzothio… more
Date: July 24, 1990
Creator: Walsh, Carol T.
Partner: UNT Libraries Government Documents Department
open access

EC Driver - 41" Stroke Hydraulic Cylinder

Description: It was decided to use a hydraulic cylinder resting on the floor of the argon spill trough in the EC carriage to drive the EC's motion on the center beam. Space was limited due to the spill bellows and their required support and containment system. The 0.0. of the cylinder had to be limited to 3 to 3-1/2 inches, maximum. The weight of a wet EC and carriage is estimated to be 320 tons. The rolling coefficient of friction of the Tychoway rollers chosen to guide the EC and carriage along the harden… more
Date: May 24, 1990
Creator: Jaques, A.
Partner: UNT Libraries Government Documents Department
open access

Seismic analysis of reactor exhaust air filter compartment

Description: The Filter Compartment (FC) in this analysis is a generic reactor airborne activity confinement filter compartment which possesses all the essential physical and mechanical properties of the Savannah River Site (SRS) confinement filters of Reactor Buildings K, L, and P. The filters belong to the Airborne Activity Confinement System (AACS). These filters absorb a significant amount of radioactive effluents from the exhausting air. The seismic excitation is input indirectly from the output of the… more
Date: September 24, 1990
Creator: Gong, Chung; Funderburk, E. L. & Jerrell, J. W.
Partner: UNT Libraries Government Documents Department
open access

Applications of Micellar Enzymology to Clean Coal Technology. [Laccase From Polyporus Versicolor]

Description: This project is designed to develop methods for pre-combustion coal remediation by implementing recent advances in enzyme biochemistry. The novel approach of this study is incorporation of hydrophilic oxidative enzymes in reverse micelles in an organic solvent. Enzymes from commercial sources or microbial extracts are being investigated for their capacity to remove organic sulfur from coal by oxidation of the sulfur groups, splitting of C-S bonds and loss of sulfur as sulfuric acid. Dibenzothio… more
Date: July 24, 1990
Creator: Walsh, C. T.
Partner: UNT Libraries Government Documents Department
open access

Computer Studies of the Dynamic Strength of Ceramics

Description: Using a new constitutive model, we performed computer studies concerning the dynamic yield strength of six ceramics, SiC, TiB{sub 2} A1N, two types of B{sub 4}C, and partially stabilized zirconia. The relative importance of the thermomechanical variables, strain, strain-rate, pressure, and temperature, as well as the Bauschinger effect, is demonstrated in determining the time response of ceramics to high-train-rate deformation. The constitutive model is easy to implement in a hydrodynamic compu… more
Date: September 24, 1990
Creator: Steinberg, Daniel
Partner: UNT Libraries Government Documents Department
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