10 Matching Results

Search Results

PG and E Geysers Retrofit Project, Units 1-12. Draft Condensed Report

Description: The purpose of this work is to demonstrate whether there is a cost benefit to Pacific Gas and Electric Company in replacing the present iron catalyst/caustic/peroxide system used in the direct contact condenser units versus an alternative approach using surface condensers and the Stretford System.
Date: August 3, 1979
Partner: UNT Libraries Government Documents Department

Experimental study of the dynamic viscosity of some anhydrous silicate melts to 1953 K at 150 kPa. [Alluvium]

Description: The dynamic viscosity was measured for six anhydrous silicate melts, obtained by fusing various rocks collected from the Department of Energy's Nevada Test Site, from 1393 to 1953 K at 150 kPa. These silicate melts exhibit Newtonian behavior in this temperature interval. Experimental results indicate that tuff viscosity > alluvium viscosity > basalt viscosity. At 1673 K, viscosities of Schooner tuff (Ue20..mu..-330'), alluvium (U10ba), and Danny Boy basalt (Ue18q No. 2) are 28,460 Pa.s, 4,820 Pa.s, and 12.6 Pa.s, respectively. Activation energies for viscous flow in the interval between 1393 and 1953 K range from 268 to 393 kJ/mole.
Date: April 3, 1979
Creator: Weed, H.C.; Piwinskii, A.J. & Dibley, L.L.
Partner: UNT Libraries Government Documents Department

ISC origin times for announced and presumed underground nuclear explosions at several test sites

Description: Announced data for US and French underground nuclear explosions indicate that nearly all detonations have occurred within one or two tenths of a second after the minute. This report contains ISC origin-time data for announced explosions at two US test sites and one French test site, and includes similar data for presumed underground nuclear explosions at five Soviet sites. Origin-time distributions for these sites are analyzed for those events that appeared to be detonated very close to the minute. Particular attention is given to the origin times for the principal US and Soviet test sites in Nevada and Eastern Kazakhstan. The mean origin times for events at the several test sites range from 0.4 s to 2.8 s before the minute, with the earlier mean times associated with the Soviet sites and the later times with the US and French sites. These times indicate lower seismic velocities beneath the US and French sites, and higher velocities beneath the sites in the USSR 9 figures, 8 tables.
Date: December 3, 1979
Creator: Rodean, H.C.
Partner: UNT Libraries Government Documents Department

Thermal analysis of mounting plate and instrument holder in upper core support structure for LOFT Core III

Description: The maximum temperature drop that could occur across the mounting plate or instrument holder is about 9/sup 0/F. This is based on conservative data and assumptions. Gamma heating was estimated from calculations for 55 MW operation; the value used was 0.015 Watts/gram of metal. The mounting plate is the restriction orifice on top of the upper end box on the center fuel assembly. The instrument holder is bolted to the top of this plate. Only steady state operation is considered.
Date: July 3, 1979
Creator: Rhodes, H.F.
Partner: UNT Libraries Government Documents Department

Atomic coherence created by a pulsed dye laser

Description: Level population as a function of laser pulse envelope area for an atom which could be approximated as a two level system was measured. An ideal two-level system under the action of an oscillating force is one of a few quantum mechanical systems for which the time-dependent Schroedinger equation can be solved exactly. The solution predicts that the population of the upper state, for a system which was entirely in the lower state at t = 0, varies as sin/sup 2/A, where A = ..integral../sub 0//sup t/ ..cap omega..(t) dt, and ..cap omega.. = e epsilon/sub 0/(t) x/sub 12//h-bar.
Date: October 3, 1979
Creator: Scarl, D.
Partner: UNT Libraries Government Documents Department

Site suitability criteria for solidified high level waste repositories

Description: The NRC is developing a framework of regulations, criteria, and standards. Lawrence Livermore Laboratory provides broad technical support to the NRC for developing this regulatory framework, part of which involves site suitability criteria for solidified high-level wastes (SHLW). Both the regulatory framework and the technical base on which it rests have evolved in time. This document is the second report of the technical support project. It was issued as a draft working paper for a programmatic review held at LLL from August 16 to 18, 1977. It was printed and distributed solely as a briefing document on preliminary methodology and initial findings for the purpose of critical review by those in attendance. These briefing documents are being reprinted now in their original formats as UCID-series reports for the sake of the historical record. Analysis results have evolved as both the models and data base have changed. As a result, the methodology, models, and data base in this document are severely outmoded.
Date: April 3, 1979
Creator: Heckman, R.A.; Holdsworth, T.; Isherwood, D.; Towse, D.F. & Dayem, N.L.
Partner: UNT Libraries Government Documents Department

Near Term Hybrid Passenger Vehicle Development Program. Phase I, Final report. Appendix D: sensitivity analysis

Description: This report on the Sensitivity of Mission Analysis and Trade-off Studies provides an analysis of the sensitivity of the results of previous mission analysis and performance specification studies to the possible variations of the values of significant parameters as projected to the year 1985. These parameters include vehicle usage by purpose, driving cycles, trip lengths, ownership projections, and life-cycle costs. Tabulated data are included from calculations with variations in these parameters. (LCL)
Date: July 3, 1979
Creator: Traversi, M.
Partner: UNT Libraries Government Documents Department

Model of emittance growth in a self-pinched beam

Description: A semi-phenomenological formula is proposed for the change of emittance of a self-pinched beam which is not matched to its equilibrium radius. Near equilibrium this formula, coupled with an envelope equation, yields the damped sausage oscillations observed in simulation and experiments. For a beam which is injected cold (no transverse velocity spread), the formula coincides with the analytically calculated initial growth of emittance. The basic theory is developed here and used to compute the linear damping rate for several current profiles. The resultant non-linear increase in equilibrium quantities is also calculated in lowest order of the degree of mismatch.
Date: December 3, 1979
Creator: Lee, E.P. & Yu, S.S.
Partner: UNT Libraries Government Documents Department

Future role of geopressured resources in US energy policy: a scenario approach and analysis. Final report, July 1, 1978-March 31, 1979

Description: The potential contribution of future geopressured energy - especially methane - to the US and the world's needs is examined through several scenarios. Although such production may not become competitive, if it does the eventual producible reserves from the Gulf Coast region seem likely to fall between 100 and 10,000 quads. The world's potential from similar resources is not known but may well be 10 times as great. The contribution to the projected future demand for hydrocarbons is found to become substantial in most of the success scenarios. The potential impact on fuel imports and their future prices is discussed. Although technical uncertainties are far too great at present for accurate projections, this could change rapidly as field data becomes available from DOE's R and D program.
Date: April 3, 1979
Creator: Brown, W.M.
Partner: UNT Libraries Government Documents Department