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Ablation gas dynamics of low-Z materials illuminated by soft x-rays

Description: Though many of our results will have much greater generality, the main purpose of this paper is to provide a simple, accurate, physical theory of what happens when a Planckian spectrum of soft x-rays is incident on one side of the slab of initially cold, dense material, of small nuclear charge Z. Our approach will be to consider in some detail the idealized situation. A semi-infinite (x {le} 0) slab of initially cold (T < 300 K), dense ({rho} {approximately} 1 {minus} 10 g/cc), low-Z (Z < 5) ma… more
Date: September 6, 1991
Creator: Hatchett, S.P.
Item Type: Refine your search to only Article
open access

Advanced coal-fueled gas turbine systems. Technical progress report, July--September 1991

Description: Five slagging combustor tests (CR1-2 through CR1-6) were conducted. Since integrating the slagging cyclone separator into the combustor system, noticeable quantities of char have been collected in the cyclone slag bucket and detected in the exhaust gases. The primary purpose of the CR1-X series of tests was to quantify the amount of char produced by the subscale slagging combustor system. The secondary purpose of this test series was to quantify the slag separation efficiency of the curved body… more
Date: November 6, 1991
Item Type: Refine your search to only Report
open access

Carbon tetrachloride contamination, 200 West Area, Hanford Site: Arid Site Integrated Demonstration for remediation of volatile organic compounds

Description: The Arid State Integrated Demonstration is a US Department of Energy (DOE) program targeted at the acquisition, development, demonstration, and deployment of technologies for evaluation and cleanup of volatile organic and associated contaminants in soils and ground waters. Several DOE laboratories, universities, and industry will participate in the program. Candidate technologies will be demonstrated in the areas of site characterization; performance prediction, monitoring, and evaluations; con… more
Date: May 6, 1991
Creator: Last, G.V. (Pacific Northwest Lab., Richland, WA (United States)) & Rohay, V.J. (Westinghouse Hanford Co., Richland, WA (United States))
Item Type: Refine your search to only Report
open access

Carbon tetrachloride contamination, 200 West Area, Hanford Site: Arid Site Integrated Demonstration for remediation of volatile organic compounds

Description: The Arid State Integrated Demonstration is a US Department of Energy (DOE) program targeted at the acquisition, development, demonstration, and deployment of technologies for evaluation and cleanup of volatile organic and associated contaminants in soils and ground waters. Several DOE laboratories, universities, and industry will participate in the program. Candidate technologies will be demonstrated in the areas of site characterization; performance prediction, monitoring, and evaluations; con… more
Date: May 6, 1991
Creator: Last, G. V. & Rohay, V. J.
Item Type: Refine your search to only Report
open access

Catalysts and process development for synthesis gas conversion to isobutylene. Quarterly report, July 1, 1991--September 30, 1991

Description: The objectives of this project are to develop a new catalyst, the kinetics for this catalyst, simulate the performance of fixed bed trickle flow reactors, slurry flow reactors, and fixed bed gas phase reactors for conversion of a hydrogen-lean synthesis gas to isobutylene. The goals for this year were to recruit and organize the project team, complete the literature and patent searches, complete the management plan and other reporting requirements, complete the revision and upgrading of existin… more
Date: November 6, 1991
Creator: Anthony, R. G. & Akgerman, A.
Item Type: Refine your search to only Report
open access

D0-EC RTD Wiring Layout (South Calorimter)

Description: The temperature of the South End-Calorimeter of the D-Zero detector is to be monitored by several RTD temperature sensors. The location and other important information pertaining to each individual RTD is included in the following tables, which are grouped by bundle number. There are nine 60 pin port connectors. Each connector corresponds to a bundle of twisted pairs. Twisted pairs, of one of eight colors along with either a black or white wire, run to 10-pin connectors which have a mate on the… more
Date: August 6, 1991
Creator: Leibfritz, J.R.
Item Type: Refine your search to only Report
open access

Development of a building wake/stack height numerical modeling capability

Description: We are developing state-of-the-art numerical tools which can be used to provide reliable estimates of potential emissions at various LLNL sites. In particular we have focused our efforts in generating models which can simulate the wind flow and dispersion of airborne pollutants around surface-mounted structures such as buildings or building complexes. To achieve this goal, we have adopted two different but complementary approaches in the modeling of this complex problem. The first approach empl… more
Date: September 6, 1991
Creator: Lee, R.L. & McCallen, R.C.
Item Type: Refine your search to only Report
open access

End Calorimeter Warm Tube Heater

Description: The Tevatron accelerator beam tube must pass through the End Calorimeter cryostats of the D-Zero Collider Detector. Furthermore, the End Calorimeter cryostats must be allowed to roll back forty inches without interruption of the vacuum system; hence, the Tev tube must slide through the End Calorimeter cryostat as it is rolled back. The Tev pass through the End Calorimeter can actually be thought of as a cluster of concentric tubes: Tev tube, warm (vacuum vessel) tube, IS layers of superinsulati… more
Date: August 6, 1991
Creator: Primdahl, K.
Item Type: Refine your search to only Report
open access

Establishment and maintenance of a coal sample bank and data base

Description: Headspace oxygen contents of several designated drums containing {minus}l inch and {minus}{1/4} inch coal were measured. These measurements were later discontinued by agreement with the Project Manager, as the leakage of plastic drums and buckets has been well documented. During the current reporting period a total of 65 data printouts were distributed. In addition, 10 special data requests were fulfilled by either search/sort and printout or creation of a data disk, resulting in distribution o… more
Date: February 6, 1991
Creator: Davis, A.
Item Type: Refine your search to only Report
open access

Establishment and maintenance of a coal sample bank and data base. [Quarterly] project status report, October 9, 1990--January 8, 1991

Description: Headspace oxygen contents of several designated drums containing {minus}l inch and {minus}{1/4} inch coal were measured. These measurements were later discontinued by agreement with the Project Manager, as the leakage of plastic drums and buckets has been well documented. During the current reporting period a total of 65 data printouts were distributed. In addition, 10 special data requests were fulfilled by either search/sort and printout or creation of a data disk, resulting in distribution o… more
Date: February 6, 1991
Creator: Davis, A.
Item Type: Refine your search to only Report
open access

Estimates of DWPF canister production

Description: Specification 1.2 of the repository program's Waste Acceptance Preliminary Specifications requires that the DWPF estimate the radionuclide inventory, and provide the error of the estimate, for each waste type (assumed to be each sludge batch). The inventory of any radionuclide is directly proportional to the number of canisters produced from that sludge batch. Thus, estimating the number of canisters to be produced from each sludge batch is an important part of complying with this specification… more
Date: December 6, 1991
Creator: Plodinec, M. J.
Item Type: Refine your search to only Report
open access

Estimates of DWPF canister production

Description: Specification 1.2 of the repository program`s Waste Acceptance Preliminary Specifications requires that the DWPF estimate the radionuclide inventory, and provide the error of the estimate, for each waste type (assumed to be each sludge batch). The inventory of any radionuclide is directly proportional to the number of canisters produced from that sludge batch. Thus, estimating the number of canisters to be produced from each sludge batch is an important part of complying with this specification… more
Date: December 6, 1991
Creator: Plodinec, M. J.
Item Type: Refine your search to only Report
open access

Financial statistics of selected publicly owned electric utilities 1989. [Contains glossary]

Description: The Financial Statistics of Selected Publicly Owned Electric Utilities publication presents summary and detailed financial accounting data on the publicly owned electric utilities. The objective of the publication is to provide the Federal and State governments, industry, and the general public with data that can be used for policymaking and decision making purposes relating to publicly owned electric utility issues. 21 tabs.
Date: February 6, 1991
Item Type: Refine your search to only Report
open access

Integrated DWPF Melter System (IDMS) campaign report: The first two noble metals operations

Description: The Integrated DWPF Melter System (IDMS) is designed and constructed to provide an engineering-scale representation of the DWPF melter and its associated feed preparation and off-gas systems. The facility is the first pilot-scale melter system capable of processing mercury, and flowsheet levels of halides and noble metals. In order to characterize the processing of noble metals (Pd, Rh, Ru, and Ag) on a large scale, the IDMS will be operated batchstyle for at least nine feed preparation cycles.… more
Date: June 6, 1991
Creator: Hutson, N. D.; Zamecnik, J. R.; Smith, M. E.; Miller, D. H. & Ritter, J. A.
Item Type: Refine your search to only Report
open access

Integrated process for reprocessing spent nuclear fuel

Description: This invention is comprised of a process for recovering nuclear fuel from spent fuel assemblies that employs a single canister process container. The cladding and fuel are oxidized in the container, the fuel is dissolved and removed from the container for separation from the aqueous phase, the aqueous phase containing radioactive waste is returned to the container. This container is also the disposal vessel. Add solidification agents and compress container for long term storage.
Date: March 6, 1991
Creator: Forsberg, C. W.
Item Type: Refine your search to only Patent
open access

Ligand intermediates in metal-catalyzed reactions

Description: This report consists of six sections, which cover pi/sigma equilibria in aldehyde and ketone complexes, abstraction of vinylic protons from alkene complexes, mechanism of rearrangement of alkylidene to alkene complexes, rearrangement of terminal acetylene to vinylidene complexes, synthesis and reactivity of lithiocarbide complexes, and new catalysts for the epimerization of secondary alcohols; carbon-hydrogen bond activation in alkoxide complexes. (WET)
Date: September 6, 1991
Creator: Gladysz, J.A.
Item Type: Refine your search to only Report
open access

Ligand intermediates in metal-catalyzed reactions. Annual technical report, September 1, 1990--August 31, 1991

Description: This report consists of six sections, which cover pi/sigma equilibria in aldehyde and ketone complexes, abstraction of vinylic protons from alkene complexes, mechanism of rearrangement of alkylidene to alkene complexes, rearrangement of terminal acetylene to vinylidene complexes, synthesis and reactivity of lithiocarbide complexes, and new catalysts for the epimerization of secondary alcohols; carbon-hydrogen bond activation in alkoxide complexes. (WET)
Date: September 6, 1991
Creator: Gladysz, J. A.
Item Type: Refine your search to only Report
open access

Liquid Phase Methanol LaPorte Process Development Unit: Modification, Operation, and Support Studies

Description: The objectives of this program are to implement and test the process improvements identified through the engineering studies of the current program (Contract DE-AC22-85PC80007), to demonstrate the capability of long-term catalyst activity maintenance, and to perform process and design engineering work that can be applied to a scale-up Liquid Phase Methanol (LPMEOH) facility. An optional series of Process Development Unit (PDU) runs is offered to extend the testing of the process improvements. A… more
Date: August 6, 1991
Creator: Brown, D. M. & Frank, M. E.
Item Type: Refine your search to only Report
open access

Liquid Phase Methanol LaPorte Process Development Unit: Modification, Operation, and Support Studies. Quarterly Technical Progress Report No. 16, 1 April--30 June 1991

Description: The objectives of this program are to implement and test the process improvements identified through the engineering studies of the current program (Contract DE-AC22-85PC80007), to demonstrate the capability of long-term catalyst activity maintenance, and to perform process and design engineering work that can be applied to a scale-up Liquid Phase Methanol (LPMEOH) facility. An optional series of Process Development Unit (PDU) runs is offered to extend the testing of the process improvements. A… more
Date: August 6, 1991
Creator: Brown, D. M. & Frank, M. E.
Item Type: Refine your search to only Report
open access

Meteorological conditions during the winter validation study at Rocky Flats, Colorado: An overview

Description: The objective for the Winter Validation Study was to gather field data for validation of the Terrain-Responsive Atmospheric Code (TRAC) under winter time meteorological conditions. Twelve tracer tests were conducted during a two-week period in February 1991. Each test lasted 12 hours, with releases of SF{sub 6} tracer from the Rocky Flats Plant near Golden, Colorado. The tests included ground-based and airborne sampling to 16 km from the release point. This presentation summarizes meteorologica… more
Date: November 6, 1991
Creator: Hodgin, C.R.
Item Type: Refine your search to only Report
open access

An MHD heat source based on intermetallic reactions

Description: The main objective of this program was the development of an MHD heat source of potential use in Space - Based Multi Megawatt, MHD Power Systems. The approach is based on extension of high temperature chemical/ion release technology developed by the General Sciences, Incorporated (GSI) team and successfully applied in other Space Applications. Solid state reactions have been identified which can deliver energy densities and electrons in excess of those from high energy explosives as well as oth… more
Date: May 6, 1991
Creator: Sadjian, H.; Zavitsanos, P. (General Sciences, Inc., Souderton, PA (United States)) & Marston, C.H. (Villanova Univ., PA (United States))
Item Type: Refine your search to only Report
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