46 Matching Results

Search Results

Results: 1 - 24 next
open access

Energy Efficiency and Least-Cost Planning: The Best Way to Save Money and Reduce Energy Use in Hawaii

Description: If the 500 MW geothermal project on the Big Island of Hawaii is developed as planned, the Wao Kele O Puna rain forest will be severely damaged or destroyed. If this happens the State will lose one of its most precious resources. It would be tragic for this to happen, since on a least-cost basis, the geothermal project does not make economic sense. Improving energy efficiency in the commercial and residential sectors of Hawaii can save about 500 MW of power at a cost of $700 million.
Date: May 21, 1990
Creator: Mowris, Robert J.
Partner: UNT Libraries Government Documents Department
open access

(Evaluations of neutron reactions with sup 52 Cr, sup 56 Fe, sup 58 Ni)

Description: The traveler organized and chaired the meeting of the NEANDC/NEACRP Nuclear Data Evaluation Cooperation Subgroup-I: Intercomparison of USA, European, and Japanese Evaluations for {sup 52}Cr, {sup 56}Fe, and {sup 58}Ni, held on December 3, 1990, at the NEA Data Bank in Saclay, France. The traveler held discussions with Subgroup-II members to keep track of the activities of this group in which the traveler is a member. Highlights and/or recommendations of these meetings, as well as observations o… more
Date: December 21, 1990
Creator: Fu, C.Y.
Partner: UNT Libraries Government Documents Department
open access

Bearing staking process investigation using a designed experiment

Description: A designed experiment was performed on the staking operation of a miniature precision bearing. Three variables were controlled during the experiment: staking force, tool diameter, and bearing-to-wheel fit. The study showed that the current staking tool diameter is highly sensitive to staking force and to bearing-to-wheel fit, whereas a smaller diameter tool is not. The study also shows that, with the current process, bearing movement under a 100-Newton (N) force can be estimated at 0.009 in. to… more
Date: December 21, 1990
Creator: Armstrong, K.P.
Partner: UNT Libraries Government Documents Department
open access

Monthly energy review, September 1990. [Contains Glossary]

Description: This report presents current data on production, consumption, stocks, imports, exports, and prices of the principal energy commodities in the United States. Also included are data on international production of crude oil, consumption of petroleum products, petroleum stocks, and production of electricity from nuclear-powered facilities.
Date: December 21, 1990
Partner: UNT Libraries Government Documents Department
open access

Detoxification and Generation of Useful Products From Coal Combustion Wastes

Description: Electric utilities are on the brink of a new era in waste disposal problems. This research project addresses the issue of how to effectively dispose of flyash, bottom ash, desulfurization sludge through the generation of chemically-hardened material that could potentially be used as a cement or as a synthetic aggregate. The specific goals of this study were: (1) to study the hardness of mixtures of flyash, bottom ash, and DSG treated with lime and other hardening agents; (2) to determine the op… more
Date: November 21, 1990
Partner: UNT Libraries Government Documents Department
open access

The use of ion beam techniques to characterize lead diffusion in minerals

Description: The characterization of diffusion of lead and other trace elements in certain mineral phases has great significance in reconstructing the thermal history of the earth's crust. Such studies permit better interpretation of ages'' obtained from isotopic dating. This study uses ion implantation to introduce lead into the minerals apatite and zircon. Diffusion profiles are obtained using Rutherford backscattering (RBS) and the results fit with a model to determine D. Results for apatite over the tem… more
Date: September 21, 1990
Creator: Cherniak, D.J.; Lanford, W.A. (State Univ. of New York, Albany, NY (USA)) & Ryerson, F.J. (Lawrence Livermore National Lab., CA (USA))
Partner: UNT Libraries Government Documents Department
open access

Electrocatalysis of anodic oxygen-transfer reactions at modified lead dioxide electrodes

Description: The electrocatalytic activities were compared for pure and chloride-doped beta-PbO{sub 2} (Cl-PbO{sub 2}) films on gold and platinum substrates. Rate constants were increased significantly for oxidations of Mn{sup 2+}, toluene, benzyl alcohol, dimethylsulphoxide (DMSO) and benzaldehyde in acidic media by the incorporation of Cl{sup {minus}} into the oxide films. These reactions are concluded to occur by the electrocatalytic transfer of oxygen from H{sub 2}O to the reaction products. Results of … more
Date: September 21, 1990
Creator: Hsiao, Yun-Lin.
Partner: UNT Libraries Government Documents Department
open access

An investigation of the mechanisms of calcination and sulfation in coal-water mixtures

Description: The purpose of this investigation is to study the mechanisms of sulfur capture when burning coal-water-limestone mixtures (CWLM) in fluidized beds. Special care is taken to make comparisons with to dry coal and sorbent under comparable experimental conditions. A series of experiments were performed in an eight-inch diameter bubbling fluidized bed combustor to address this problem. 33 refs., 17 figs., 5 tabs.
Date: September 21, 1990
Creator: Christofides, N.
Partner: UNT Libraries Government Documents Department
open access

Precipitation of jarosite-type double salts from spent acid solutions from a chemical coal cleaning process

Description: The precipitation of jarosite compounds to remove Na, K, Fe, and SO{sub 4}{sup 2{minus}} impurities from spent acid solutions from a chemical coal cleaning process was studied. Simple heating of model solutions containing Fe{sub 2}(SO{sub 4}){sub 3}, Na{sub 2}SO{sub 4}, and K{sub 2}SO{sub 4} caused jarosite (KFe{sub 3}(SO{sub 4}){sub 2}(OH){sub 6}) to form preferentially to natrojarosite (NaFe{sub 3}(SO{sub 4}){sub 2}(OH){sub 6}). Virtually all of the K, about 90% of the Fe, and about 30% of th… more
Date: September 21, 1990
Creator: Norton, G.
Partner: UNT Libraries Government Documents Department
open access

Spin motion of electrons in the SLC linac

Description: It is generally expected that the depolarizing effects of the linear accelerator RF fields will be small. Recently Bill Atwood raised the question whether this conclusion is still correct in view of the fact that the particles in the SLC spend a larger fraction of their time at phase angles off crest'' due to BNS damping; since radial fields are in quadrature with the accelerating field this might imply that depolarizing effects are larger. On the other hand, because of the smaller emittance of… more
Date: November 21, 1990
Creator: Panofsky, W. K. H.
Partner: UNT Libraries Government Documents Department
open access

LIMB demonstration project extension

Description: The purpose of the DOE limestone injection multistage burner (LIMB) Demonstration Project Extension is to extend the data base on LIMB technology and to expand DOE's list of Clean Coal Technologies by demonstrating the Coolside process as part of the project. The main objectives of this project are: to demonstrate the general applicability of LIMB technology by testing 3 coals and 4 sorbents (total of 12 coal/sorbent combinations) at the Ohio Edison Edgewater plant; and to demonstrate that Cool… more
Date: September 21, 1990
Partner: UNT Libraries Government Documents Department
open access

(Temperature coefficient of U-235 fueled thermal reactors and nuclear data on eta at thermal neutron energies and 239-Pu fission cross sections between 1 and 100 keV)

Description: The Evaluation Cooperation Subgroup, Actinide Data in the Thermal Energy Range,'' met primarily to discuss problems related to the temperature coefficient of U-235 fueled thermal reactors and nuclear data on eta at thermal neutron energies, the number of neutrons emitted per neutron absorbed. The preliminary results of the eta measurements done by M. Moxon of Harwell at Oak Ridge were presented and preliminary results by H. Weigman of Geel with a new method were presented. All three measurement… more
Date: December 21, 1990
Creator: Weston, L.W.
Partner: UNT Libraries Government Documents Department
open access

Followup review of major system aquisitions and major projects

Description: In 1985, we reviewed the Department's procedures and practices for managing and controlling its major acquisition program, both for major systems and major projects. The 1985 review resulted in the identification of significant deficiencies. We found, for example, deficiencies relating to documentation and reporting requirements for major acquisitions. The purpose of this review was to determine if this condition had been corrected. The review included an examination of applicable laws, Executi… more
Date: November 21, 1990
Partner: UNT Libraries Government Documents Department
open access

The growth, structure, and thermal stability of vapor deposited ultra-thin metal films: Rh on Ag(100), Au on Pd(110), and Pt on Pd(110)

Description: The growth, structure, and thermal stability of ultra-thin metal films (Rh on Ag(100); Au on Pd(110) and Pt on Pd(110)) is investigated using surface sensitive techniques. The three systems studied present a variety of differing characteristics which can contribute to the growth mode, two-dimensional structure, and thermal stability of the films. The main factors contributing to the differing properties of the three systems presented here are: (1) the different substrate morphologies; (2) the d… more
Date: September 21, 1990
Creator: Schmitz, P.
Partner: UNT Libraries Government Documents Department
open access

High precision numerical solutions to electric fields in a radial drift chamber

Description: A modification to the proportional chamber design makes it possible to achieve 5{mu}m spatial resolution in particle tracking. Achieving this requires knowing exactly what the electric field is in the chamber, and simple approximations to the field are not accurate enough. The operation of the chamber and techniques which accurately evaluate the electric field are discussed.
Date: September 21, 1990
Creator: Faust, Jonathan
Partner: UNT Libraries Government Documents Department
open access

An analysis of commerical zeolite catalysts by multinuclear NMR

Description: This work involves studying two commercial hydrocracking catalysts by solid state multinuclear NMR silicon 29 and aluminum 27 with the goal of developing a method of determining the fraction zeolite in the catalysts. The zeolite fraction is known to be one of the faujasite zeolites type X or Y. The clay matrix of the catalyst is assumed to be kaolinite. Fresh, air-exposed commercial hydrocracking catalysts were provided by Phillips Petroleum. Sample 33351-86 was known to be a physical mixture o… more
Date: September 21, 1990
Creator: Flanagan, L.
Partner: UNT Libraries Government Documents Department
open access

Report of Foreign Travel of Peter F. Toreorelli, August-September 1990

Description: The traveler participated in the 1990 European Workshop on Lead-Lithium Corrosion and Chemistry. Main areas of emphasis in the European liquid metal (exclusively Pb-17 at. % Li) program are now on deposition effects and corrosion-resistant surface product layers that can also serve as barriers to tritium permeation and insulators. Dr. Tortorelli also visited Harwell Laboratory to discuss innovative methods of corrosion analysis. He attended the 16th Symposium on Fusion Technology in London and … more
Date: September 21, 1990
Creator: Tortorelli, Peter F.
Partner: UNT Libraries Government Documents Department
open access

XAPiir: A recursive digital filtering package

Description: XAPiir is a basic recursive digital filtering package, containing both design and implementation subroutines. XAPiir was developed for the experimental array processor (XAP) software package, and is written in FORTRAN. However, it is intended to be incorporated into any general- or special-purpose signal analysis program. It replaces the older package RECFIL, offering several enhancements. RECFIL is used in several large analysis programs developed at LLNL, including the seismic analysis packag… more
Date: September 21, 1990
Creator: Harris, David
Partner: UNT Libraries Government Documents Department
open access

Synthesis, characterization, and reactivity of sulfided hexanuclear molybdenum cluster compounds

Description: Hexanuclear molybdenum clusters with mixed chloride and sulfide bridging ligands were prepared by reacting {alpha}-MoCl{sub 2} with sodium hydrosulfide in the presence of sodium butoxide. The resulting species, Mo{sub 6}Cl{sub (8-x)}S{sub x}{center dot}npy(x {congruent} 3.6, n {congruent} 4, py = pyridine), was pyrophoric and insoluble. The mixed sulfide chloride cluster species Mo{sub 6}S{sub 4}Cl{sub 4}{center dot}6OPEt{sub 3} and Mo{sub 6}S{sub {approximately}5}Cl{sub {approximately}3}{cente… more
Date: September 21, 1990
Creator: Spink, D.
Partner: UNT Libraries Government Documents Department
open access

System 80+{trademark} Standard Design: CESSAR design certification. Volume 9: Amendment I

Description: This report, entitled Combustion Engineering Standard Safety Analysis Report -- Design Certification (CESSAR-DC), has been prepared in support of the industry effort to standardize nuclear plant designs. These volumes describe the Combustion Engineering, Inc. System 80{sup +}{trademark} Standard Design. This volume 9 discusses Electric Power and Auxiliary Systems.
Date: December 21, 1990
Partner: UNT Libraries Government Documents Department
open access

System 80+{trademark} Standard Design: CESSAR design certification. Volume 7: Amendment I

Description: This report, entitled Combustion Engineering Standard Safety Analysis Report - Design Certification (CESSAR-DC), has been prepared in support of the industry effort to standardize nuclear plant designs. These documents describe the Combustion Engineering, Inc. System 80+{sup TM} Standard Design. This report, Volume 7, in conjunction with Volume 6, provides a description of engineered safety features.
Date: December 21, 1990
Partner: UNT Libraries Government Documents Department
open access

System 80+{trademark} Standard Design: CESSAR design certification. Volume 6: Amendment I

Description: This report, entitled Combustion Engineering Standard Safety Analysis Report - Design Certification (CESSAR-DC), has been prepared in support of the industry effort to standardize nuclear plant designs. These documents describe the Combustion Engineering, Inc. System 80+{sup TM} Standard Design. This report, Volume 6, in conjunction with Volume 7, provides a description of engineered safety features.
Date: December 21, 1990
Partner: UNT Libraries Government Documents Department
open access

System 80+{trademark} Standard Design: CESSAR design certification. Volume 11: Amendment I

Description: This report, entitled Combustion Engineering Standard Safety Analysis Report -- Design Certification (CESSAR-DC), has been prepared in support of the industry effort to standardize nuclear plant designs. These volumes describe the Combustion Engineering, Inc. System 80{sup +}{trademark} Standard Design. This volume 11 discusses Radiation Protection, Conduct of Operations, and the Initial Test Program.
Date: December 21, 1990
Partner: UNT Libraries Government Documents Department
open access

Transverse mode coupling in RHIC

Description: In the Proceedings of the Workshop on the RHIC Performance, it was stated that the transverse mode coupling instability, posed a potential intensity limitation for protons. This was based on the expression I{sub b} = 4(E{sub t}/qe) Q{sub s} 4 {radical}{pi} {sigma} {ell}/(Im (Z{sub {perpendicular}}) < {beta}{sub {perpendicular}} > R 3) where E{sub t} is the total energy, q the charge state, Q{sub s} the synchrotron tune, < {beta}{sub {perpendicular}} > the average beta function, R the machine ra… more
Date: February 21, 1990
Creator: Raka, E.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen