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Confirmation test for gas/slurry flow in SRC-I coal liquefaction process. Internal R and D final report

Description: The overall objective of program 12.11.1 was to provide data needed to confirm the design of the transport system, slurry heat exchangers, and slurry feed manifolds for the SRC-I Demonstration Plant. Because of lack of funds, the program was terminated before most of the work was completed. Two studies related to distribution of two-phase flow in the heat exchanger tubes were finished. A special system was designed to measure slurry concentration and flow rate in different tubes. Results showed… more
Date: September 1, 1983
Creator: Moujaes, S.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reasons for the termination of, and DOE losses in, a geothermal demonstration powerplant project

Description: The 50-megawatt Baca geothermal demonstration powerplant project, located in northern New Mexico, was the Department of Energy's (DOE's) initial effort to demonstrate geothermal powerplant technology. The project, started in 1978, was believed to have a high probability of success, and its cost was to be shared equally with the industry participants. GAO's review showed that the project was terminated in January 1982 because sufficient geothermal steam to operate the powerplant could not be obt… more
Date: September 29, 1983
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Comparative analysis of internal fuel motion in annular fuel designs

Description: In this paper, the whole-core reactivity consequences of internal fuel motion in three annular fuel designs during a hypothetical 3 dollars/s transient overpower (TOP) accident are compared to determine the effect of geometric design variations. The PINEX-2 and PINEX-3 experiments were performed in the TREAT reactor using annular fuel pins irradiated in GETR. This paper investigates three combinations of solid and annular axial blankets and fission gas plena: top annular blanket and plenum, bot… more
Date: September 16, 1983
Creator: Smith, D. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Theoretical and experimental studies of fixed-bed coal gasification reactors. Final report

Description: A laboratory fixed-bed gasification reactor was designed and built with the objective of collecting operational data for model validation and parameter estimation. The reactor consists of a 4 inch stainless steel tube filled with coal or char. Air and steam is fed at one end of the reactor and the dynamic progress of gasification in the coal or char bed is observed through thermocouples mounted at various radial and axial locations. Product gas compositions are also monitored as a function of t… more
Date: September 1, 1983
Creator: Joseph, B.; Bhattacharya, A.; Salam, L. & Dudukovic, M.P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Effects of nominal and crack-tip strain rate on IGSCC susceptibility in CERT tests

Description: Constant extension rate tests have been performed on sensitized Type 316 stainless steel in oxygenated water (8 ppM O/sub 2/) containing chloride ion impurities (0.5 ppM) over a range of strain rates from 10/sup -5/ to 2 x 10/sup -7/ s/sup -1/. The susceptibility to IGSCC (as quantified by parameters such as crack length at failure) increases with a decrease in strain rate. A model consistent with the observed and postulated crack growth behavior and with a fracture criterion is presented and u… more
Date: September 1, 1983
Creator: Maiya, P.S. & Shack, W.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Computed tomography using synchrotron radiation

Description: X-ray computed tomography (CT) is a widely used method of obtaining cross-sectional views of objects. The high intensity, natural collimation, monochromaticity and energy tunability of synchrotron x-ray sources could potentially be used to provide CT images of improved quality. The advantages of these systems would be that images could be produced more rapidly with better spatial resolution and reduced beam artifacts. In addition, images, in some cases, could be acquired with elemental sensitiv… more
Date: September 1, 1983
Creator: Thompson, A. C.; Llacer, J.; Finman, L. C.; Hughes, E. B.; Otis, J. N.; Wilson, S. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Initial radiation dosimetry at Hiroshima and Nagasaki

Description: The dosimetry of A-bomb survivors at Hiroshima and Nagasaki is discussed in light of the new dosimetry developed in 1980 by the author. The important changes resulting from the new dosimetry are the ratios of neutron to gamma doses, particularly at Hiroshima. The implications of these changes in terms of epidemiology and radiation protection standards are discussed. (ACR)
Date: September 1, 1983
Creator: Loewe, W.E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Hot dry rock geothermal energy development program. Annual report, fiscal year 1982

Description: Emphasis in the Hot Dry Rock Program was on development of methods to produce the hydraulic fractures required to connect the deep, inclined wells of the Phase II system at Fenton Hill. Environmental surveillance, instrument development, laboratory and modeling studies, and other supporting activities were continued. After two unsuccessful attempts to fracture hydraulically through inflatable packers, formation breakdown was produced in an uncased section near the bottom of well EE-2 by pumping… more
Date: September 1, 1983
Creator: Smith, M.C.; Nunz, G.J. & Ponder, G.M. (eds.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Analytic representation of three-dimensional stellarator field

Description: The stellarator configuration can be greatly simplified when toroidal harmonics are introduced. The toroidal function satisfies Laplace's equation and together with toroidal field and vertical field, a small-aspect-ratio stellarator can be constructed with an aspect ratio as low as 3.6. This functional presentation suggests a very fast computation of particle orbits and magnetic configuration.
Date: September 1, 1983
Creator: Yoshikawa, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Post-test examination observations for the W-2 SLSF experiment. [Sodium Loop Safety Facility]

Description: Gamma scanning measurements revealed that the axial power profile in these test trains was more peaked than expected based on pretest calculations and critical facility measurements. These results implied that the thermal flux incident on the test assembly was greater than expected, which was manifested in highly skewed and extensive fuel melting zones in the outer pin fuel pellets. Observations indicated that the extent of fuel melting near the midplane exceeded 90% of the pellet radius in som… more
Date: September 1, 1983
Creator: Pitner, A. L.; Smith, D. E. & Culley, G. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Wave Dynamics of Regular and Chaotic Rays

Description: In order to investigate general relationships between waves and rays in chaotic systems, I study the eigenfunctions and spectrum of a simple model, the two-dimensional Helmholtz equation in a stadium boundary, for which the rays are ergodic. Statistical measurements are performed so that the apparent randomness of the stadium modes can be quantitatively contrasted with the familiar regularities observed for the modes in a circular boundary (with integrable rays). The local spatial autocorrelati… more
Date: September 1, 1983
Creator: McDonald, S. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Evaluation of the IRAD sonic extensometers for application in the Canadian Underground Research Laboratory (FY 1983)

Description: This report supplements an earlier study that discussed the suitability of using the IRAD sonic extensometer in the Underground Research Laboratory proposed by the Atomic Energy of Canada, Ltd. In particular, it addresses the first and fourth recommendations made in that report concerning the basic accuracy of the instrument and evaluation of the electronic circuitry, respectively.
Date: September 1, 1983
Creator: Glenn, H.D. & Butler, L.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Coal-liquid fuel/diesel engine operating compatibility. Final report

Description: This work is intended to assess the possibilities of using coal-derived liquids (CDL) represented by a specific type (SRC II) and shale-derived distillate fuel in blends of petroleum-derived fuels in medium-speed, high-output, heavy-duty diesel engines. Conclusions are as follows: (1) Blends of solvent refined coal and diesel fuel may be handled safely by experienced diesel engine mechanics. (2) A serious corrosion problem was found in the fuel pump parts when operating with solvent refined coa… more
Date: September 1, 1983
Creator: Hoffman, J.G. & Martin, F.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fifty megawatt klystron for the Stanford Linear Collider

Description: The proposed Stanford Linear Collider (SLC) has been designed to provide 50 on 50 GeV electron-positron collisions. The performance of the 240 klystrons driving the two-mile long linac must be upgraded to achieve at least 50 Megawatts of peak power output at a pulse of 5 ..mu..sec and a pulse repetition frequency of 180 pulses per second. The operating frequency of the upgraded linac will continue to be 2856 MHz. A klystron amplifier meeting these new requirements has been designed to operate a… more
Date: September 1, 1983
Creator: Lee, T. G.; Lebacqz, J. V. & Konrad, G. T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Intense positron beams: linacs. Preworkshop copy

Description: Beams of monoenergetic positrons with energies of a few eV to many keV have been used in experiments in atomic physics, solid state physics and materials science. The production of positron beams from a new source, an electron linac, is described. Intense, pulsed beams of low-energy positrons have been produced by a high-energy beam from an electron linac. The production efficiency, moderator geometry, beam spot size and other positron beam parameters have been determined for electrons with ene… more
Date: September 1, 1983
Creator: Howell, R. H.; Alvarez, R. A.; Woodle, K. A.; Dhawan, S.; Egan, P. O.; Hughes, V. W. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Models and simulations

Description: On-line mathematical models have been used successfully for computer controlled operation of SPEAR and PEP. The same model control concept is being implemented for the operation of the LINAC and for the Damping Ring, which will be part of the Stanford Linear Collider (SLC). The purpose of this paper is to describe the general relationships between models, simulations and the control system for any machine at SLAC. The work we have done on the development of the empirical model for the Damping R… more
Date: September 1, 1983
Creator: Lee, M. J.; Sheppard, J. C.; Sullenberger, M. & Woodley, M. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Angle-Resolved Photoemission Extended Fine Structure

Description: Core level angle-resolved photoemission intensity oscillates sinusoidally with increasing photoelectron momentum. Interference between direct and scattered photo-emission causes this angle-resolved photoemission extended fine structure (ARPEFS). We will discuss an analytic single-scattering theory which quantitatively describes the oscillations. The procedures for extracting surface geometry information from photoemission measurements will be illustrated with S(1s) ARPEFS from S on Ni(100) and … more
Date: September 1983
Creator: Barton, J. J.; Bahr, C. C.; Hussain, Z.; Robey, S. W.; Klebanoff, L. E. & Shirley, D. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Effects of sodium environment on the mechanical properties of Fe-2 1/4Cr-1Mo steel

Description: Mechanical property data on isothermally annealed, thermally aged, and sodium-exposed Fe-2 1/4Cr-1Mo steel are analyzed to evaluate the influence of the sodium environment as well as the effects of the microstructural and compositional changes that occur in the steel during long-term exposure to sodium. Correlations are developed to predict the environmental effects on tensile, creep, fatigue, and creep-fatigue properties of Fe-2 1/4Cr-1Mo steel in sodium. The results indicate that at temperatu… more
Date: September 1, 1983
Creator: Chopra, O,K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Deploymerization of coal by direct solvent attack. Semi-annual report, April 1, 1983-August 31, 1983

Description: The depolymerization of Illinois No. 6 coal by a series of solvents having different basecities (pK/sub a/) and nucleophilicities (Swain-Scott nu values) showed no dependence on either the basicity of nucleophilicity of the solvents. As expected, the conversion decreases as the temperature of the reaction is reduced, but the lower the reaction temperature, the higher the percentage of amine incorporation becomes in the products. 5 tables.
Date: September 15, 1983
Creator: Larsen, J. W. & Mohammadi, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Legal factors affecting the financing of small scale hydroelectric projects

Description: An introduction to the major business organizational options open to small-scale hydroelectric (SSH) projects is given. The major federal income tax treatments of these options are compared. Significant general federal income tax factors affecting SSH projects are reintroduced and explained. Some of the special federal income tax problem areas in SSH development are isolated. Tax benefit flow through or transfer mechanisms are discussed. Tax exempt financing opportunities for private SSH projec… more
Date: September 1, 1983
Creator: Wilson, W. H.; Ringo, M. J. & Forgione, N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Long-term exposure of /sup 238/PuO/sub 2/ to a terrestrial environment. Volume 2

Description: Two environmental simulation chambers were used to study the behavior of a /sup 238/PuO/sub 2/ heat source deposited in a humid, temperate environment. Large fragments from an impact-tested source were deposited in the first chamber, and fines from the source were placed in the second. Plutonium released into the soil, the soil drainages, and the condensates from the dehumidifiers were monitored throughout the experiment. The concentration of plutonium released into the soil drainages increased… more
Date: September 1, 1983
Creator: Patterson, J. H.; Heaton, R. C.; Herrera, B.; Nelson, G. B. & Steinkruger, F. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Broad-band soft x-ray diagnostic instruments at the LLNL Novette laser facility

Description: Complementary broad-band instruments have been developed to measure time dependent, absolute soft x-ray spectra at the Lawrence Livermore National Laboratory (LLNL) Nd glass laser irradiation facilities. Absolute flux measurements of x rays emitted from laser-produced plasmas are important for understanding laser absorption and energy transport. We will describe two new 10-channel XRD systems that have been installed at the LLNL Novette facility for use in the 0.15- to 1.5-keV range. Since XRD … more
Date: September 15, 1983
Creator: Tirsell, K.G.; Lee, P.H.Y.; Nilson, D.G. & Medecki, H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Experimental study of electron beam induced removal of H/sub 2/S from geothermal fluids

Description: The treatment of geothermal steam by electron beam irradiation is a potential alternative method of H/sub 2/S removal which can be applied upstream or downstream and has no chemical requirements. The experimental work reported here examines the effectiveness of electron beam treatment of geothermal fluids. These fluids are produced by combining the constituents in a heated cell, which contains an electron beam transparent window. Irradiation of the contents and subsequent chemical analysis allo… more
Date: September 1, 1983
Creator: Helfritch, D.J.; Singhvi, R.; Evans, R.D. & Reynolds, W.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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