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Report on water quality, sediment and water chemistry data for water and sediment samples collected from source areas to Melton Hill and Watts Bar reservoirs (open access)

Report on water quality, sediment and water chemistry data for water and sediment samples collected from source areas to Melton Hill and Watts Bar reservoirs

Contamination of surface water and sediments in the Clinch River and Watts Bar Reservoir (CR/WBR) system as a result of past and present activities by the US Department of Energy (DOE) on the Oak Ridge Reservation (ORR) and also activities by non-ORR facilities are being studied by the Clinch River Environmental Restoration Program (CR-ERP). Previous studies have documented the presence of heavy metals, organics, and radionuclides in the sediments of reservoirs in the vicinity. In support of the CR-ERP, during the summer of 1991, TVA collected and evaluated water and sediment samples from swimming areas and municipal water intakes on Watts Bar Reservoir, Melton Hill Reservoir and Norris Reservoir, which was considered a source of less-contaminated reference or background data. Despite the numerous studies, until the current work documented by this report, relatively few sediment or water samples had been collected by the CR-ERP in the immediate vicinity of contaminant point sources. This work focused on water and sediment samples taken from points immediately downstream from suspected effluent point sources both on and off the ORR. In August and September, 1994, TVA sampled surface water and sediment at twelve locations in melton Hill and Watts Bar Reservoirs.
Date: August 18, 1995
Creator: Tomaszewski, T.M.; Bruggink, D.J. & Nunn, D.L.
System: The UNT Digital Library
Tokamak Physics EXperiment (TPX): Toroidal field magnet design, development and manufacture. SDRL 29, Analysis results. Volume 3 (open access)

Tokamak Physics EXperiment (TPX): Toroidal field magnet design, development and manufacture. SDRL 29, Analysis results. Volume 3

The electromagnetic analysis is mainly based on model built with 3-D electromagnetic software OPERA/TOSCA. In the process of evaluating the software package, some models are also built with 3-D boundary element electromagnetic software AMPERES. Fortran programs are also developed at B&W to perform Monte-Carlo simulations of the field error analysis to assist tolerance determinations.
Date: August 18, 1995
Creator: Xu, Minfeng
System: The UNT Digital Library
Tokamak Physics EXperiment (TPX): Toroidal field magnet design, development and manufacture. SDRL 32, Coil assembly documentation. Volume 5 (open access)

Tokamak Physics EXperiment (TPX): Toroidal field magnet design, development and manufacture. SDRL 32, Coil assembly documentation. Volume 5

This document is intended to address the contract requirement for providing coil assembly documentation, as required in the applicable Statement of Work: `Provide preliminary procedures and preliminary design and supporting analysis of the equipment, fixtures, and hardware required to integrate and align the impregnated coil assemblies with the coil cases and intercoil structure. Each of the three major processes associated with the coil case and intercoil structure (ICS), TF Case Fabrication, Coil Preparation for Case Assembly are examined in detail. The specific requirements, processes, equipment, and technical concerns for each of these assembly processes is presented.
Date: August 18, 1995
Creator: Weber, C.M.
System: The UNT Digital Library
Variable input coupler design for storage ring cavities (open access)

Variable input coupler design for storage ring cavities

Magnetic loop type input couplers are used for coupling rf power from waveguides to the storage ring cavities: In a high rf power and high beam current accelerating cavity, the change in beam loading results in high reflected power due to input rf mismatch. The coupler can be matched for a specific loading condition, but cannot be matched in other conditions. The input mismatch results in poor rf power efficiency and overheating of the ceramic window in the coupler. Therefore, coupling through the coupling loop must be adjustable for maximum operating power efficiency and coupler reliability. The adjustment of coupling can be made by changing the magnetic flux linkage through the loop area. This can be done either mechanically by moving the coupling loop position or electronically by using impedance matching to change the properties of low loss material such as ferrite. In the existing coupler design, to change the coupling the coupler loop is turned physically for matching. The cavity vacuum must be broken and pumped down again; this can cause long system down time.
Date: August 18, 1995
Creator: Kang, Y. W. & Kustom, R. L.
System: The UNT Digital Library
Tokamak Physics EXperiment (TPX): Toroidal field magnet design, development and manufacture. SDRL 46, CPDR review package. Volume 6 (open access)

Tokamak Physics EXperiment (TPX): Toroidal field magnet design, development and manufacture. SDRL 46, CPDR review package. Volume 6

This preliminary design reviews the overall design package for the magnet system. It is mostly presented in viewgraphs. The lengthy presentation took up two full days. Sections are given on TF SDD, TF magnet specifications, TF interface definition, drawing tree and design control, winding pack design, manufacturing, coil setup for VPI, TPX TF magnet assembly, TF materials and processes, quality assurance and test requirements, coil verification testing, TPX acceptance tools, and planning tools.
Date: August 18, 1995
Creator: Weber, C. M.
System: The UNT Digital Library
Tokamak Physics EXperiment (TPX): Toroidal magnet design, development and manufacture. SDRL 31, Magnet sensors. Volume 4 (open access)

Tokamak Physics EXperiment (TPX): Toroidal magnet design, development and manufacture. SDRL 31, Magnet sensors. Volume 4

The requirement for magnet sensors to verify the TF magnet system operation and aid in diagnostic assessment are defined. However, generally one does not specify such a system in the absence of a definition of the local I&C system. Also, one would expect that there would be great benefit (economy, redundancy, compatibility, etc.) in specifying common components for all of the magnet system. Thus specifying the sensors requirement we have tried to be flexible to accommodate future adjustments to these systems.
Date: August 18, 1995
Creator: Weber, C. M.
System: The UNT Digital Library
Technology development for iron Fischer-Tropsch catalysis. Quarterly technical progress report No. 3, April 1, 1995--June 30, 1995 (open access)

Technology development for iron Fischer-Tropsch catalysis. Quarterly technical progress report No. 3, April 1, 1995--June 30, 1995

The objective of this research project is to develop the technology for the production of physically robust iron-based Fischer-Tropsch catalysts that have suitable activity, selectivity and stability to be used in the slurry phase synthesis reactor development. The catalysts that are developed shall be suitable for testing in the Advanced Fuels Development Facility at LaPorte, Texas, to produce either low- or high-alpha product distributions. Previous work by the offeror has produced a catalyst formulation that is 1.5 times as active as the {open_quotes}standard-catalyst{close_quotes} developed by German workers for slurry phase synthesis. The proposed work will optimize the catalyst composition and pretreatment operation for this low-alpha catalyst. In parallel, work will be conducted to design a high-alpha iron catalyst this is suitable for slurry phase synthesis. Studies will be conducted to define the chemical phases present at various stages of the pretreatment and synthesis stages and to define the course of these changes. The oxidation/reduction cycles that are anticipated to occur in large, commercial reactors will be studied at the laboratory scale. Catalyst performance will be determined for catalysts synthesized in this program for activity, selectivity and aging characteristics. The research is divided into four major topical areas: (a) catalyst preparation …
Date: August 18, 1995
Creator: unknown
System: The UNT Digital Library
World Oil Production After Year 2000: Business As Usual or Crises? (open access)

World Oil Production After Year 2000: Business As Usual or Crises?

Deficient productive capacity has not yet caused an oil crisis, but that does not mean it never will. Significant increases in world oil demand will have to be met primarily from Persian Gulf supplies. This is a region with a history of wars, illegal occupations, soups, revolutions, sabotage, terrorism, and oil embargoes. To these possibilities may be added growing Islamist movements with various antipathies to the West. If oil production were constrained, oil prices could rise abruptly along with adverse world economic repercussions. If the IEA and EIA are correct on the demand side, deficient world oil productive capacity could cause an oil crisis within 15 years and political disruptions in Saudi Arabia could cause one sooner. However, if the increases in world oil demand were more moderate, and there is long-term relative peace in the Middle East, with increasing foreign participation in upstream oil activities, a business as usual world oil demand and supply situation would be a likely scenario for much of the next century.
Date: August 18, 1995
Creator: Riva, Joseph P
System: The UNT Digital Library