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in creator/contributor: "Miller, R. L."

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Removal of silica from Raft River geothermal water

Lack of sufficient quantities of clean surface or near-surface water at Raft River for cooling purposes dictates that cooled geothermal fluid, effluent from the Raft River 5 MW(e) Pilot Power Plant, must also be used as condenser coolant. Prior testing revealed that a water-treatment system would be required to reduce silica and calcium concentrations of the cooling fluid. The water-treatment system specified was to use dolomitic lime for both pH adjustment and source of magnesium. The dolomiti… more

Date: June 1, 1980

Creator: Suciu, D. F. & Miller, R. L.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Process and analytical studies of enhanced low severity co-processing using selective coal pretreatment

This report describes progress on research during the eleventh quarter of this contract dealing with applications of coal pretreatment techniques in coal/oil co-processing and direct hydroliquefaction. The objectives of the project are to investigate various coal pretreatment techniques and to determine the effect of these pretreatment procedures on the reactivity of the coal. Reactivity enhancement will be evaluated under both direct hydroliquefaction and co-processing conditions. Coal convers… more

Date: 1991-06~

Creator: Baldwin, R. M.; Gaur, S. & Miller, R. L.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

The ARIES-III D- sup 3 He tokamak reactor: Design-point determination and parametric studies

The multi-institutional ARIES study has generated a conceptual design of another tokamak fusion reactor in a series that varies the assumed advances in technology and physics. The ARIES-3 design uses a D-{sup 3}He fuel cycle and requires advances in technology and physics for economical attractiveness. The optimal design was characterized through systems analyses for eventual conceptual engineering design. Results from the systems analysis are summarized, and a comparison with the high-field, D… more

Date: January 1, 1991

Creator: Bathke, C. G.; Werley, K. A.; Miller, R. L.; Krakowski, R. A. (Los Alamos National Lab., NM (United States)) & Santarius, J. F. (Wisconsin Univ., Madison, WI (United States))

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Optimization and control of the plasma shape and current profile in noncircular cross-section tokamaks

High-..beta.. equilibria which are stable to all ideal MHD modes are found by optimizing the plasma shape and current profile for doublets, up-down asymmetric dees, and symmetric dees. The ideal MHD stability of these equilibria for low toroidal mode number n is analyzed with a global MHD stability code, GATO. The stability to high-n modes is analyzed with a localized ballooning code, BLOON. The attainment of high ..beta.. is facilitated by an automated optimization search on shape and current … more

Date: June 1, 1980

Creator: Moore, R. W.; Bernard, L. C.; Chan, V. S.; Davidson, R. H.; Dobrott, D. R.; Helton, F. J. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Parametric systems analysis of the Modular Stellarator Reactor (MSR)

The close coupling in the stellarator/torsatron/heliotron (S/T/H) between coil design (peak field, current density, forces), magnetics topology (transform, shear, well depth), and plasma performance (equilibrium, stability, transport, beta) complicates the reactor assessment more so than for most magnetic confinement systems. In order to provide an additional degree of resolution of this problem for the Modular Stellarator Reactor (MSR), a parametric systems model has been developed and applied… more

Date: May 1, 1982

Creator: Miller, R. L.; Krakowski, R. A. & Bathke, C. G.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Alpha-particle considerations relevant to the Reversed-Field Pinch Reactor (RFPR)

A primer on alpha-particle fundamentals as they relate to the conceptual design of the Reversed-Field Pinch Reactor (RFPR) is presented. A call for more research in this area is made.

Date: January 1, 1980

Creator: Miller, R. L.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Plasma physics aspects of ETF/INTOR

In order to achieve their principle technical objectives, the Engineering Test Facility (ETF) and the International Tokomak Reactor (INTOR) will require an ignited (or near ignited) plasma, sustained for pulse lengths of at least 100 secs at a high enough plasma pressure to provide a neutron wall loading of at least 1.3 MW/m/sup 2/. The ignited plasma will have to be substantially free of impurities. Our current understanding of major plasma physics characters is summarized.

Date: January 1, 1980

Creator: Peng, Y. K. M.; Rutherford, P. R.; Schmidt, J. A.; Cohn, D. R. & Miller, R. L.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Plasma engineering design of a compact reversed-field pinch reactor (CRFPR)

The rationale for and the characteristics of the high-power-density Compact Reversed-Field Pinch Reactor (CRFPR) are discussed. Particular emphasis is given to key plasma engineering aspects of the conceptual design, including plasma operations, current drive, and impurity/ash control by means of pumped limiters or magnetic divertors. A brief description of the Fusion-Power-Core integration is given.

Date: January 1, 1983

Creator: Bathke, C. G.; Embrechts, M. J.; Hagenson, R. L.; Krakowski, R. A. & Miller, R. L.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Evaluation of nuclear facility decommissioning projects. Three Mile Island Unit 2. Radioactive waste and laundry shipments. Volume 9. Summary status report

This document summarizes information concerning radioactive waste and laundry shipments from the Three Mile Island Nuclear Station Unit 2 to radioactive waste disposal sites and to protective clothing decontamination facilities (laundries) since the loss of coolant accident experienced on March 28, 1979. Data were collected from radioactive shipment records, summarized, and placed in a computerized data information retrieval/manipulation system which permits extraction of specific information. … more

Date: May 1, 1986

Creator: Doerge, D. H.; Miller, R. L. & Scotti, K. S.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Results of short-term corrosion evaluation tests at Raft River

Four categories of short-term materials evaluation tests were conducted in geothermal fluid from Raft River Geothermal Experiment, Well No. 1, to obtain corrosion data relevant to the design of the Raft River Thermal Loop Facility. Test programs are described and the testing philosophies are discussed. All materials and configurations which were tested are identified and details of posttest visual examinations are presented. The materials are then assigned to appropriate performance categories … more

Date: October 1, 1977

Creator: Miller, R. L.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Fusion burn dynamics in dense Z-pinches (DZP)

The fusion burn dynamics and energy yield of the dense Z-pinch (DZP) are examined using a profile-averaged, zero-dimensional time-dependent model. A range of conditions (fuel, line density, voltage, fusion-product heating, enthalpy endless, density and temperature profiles, current rise rate, electrode impurities) are examined. Magneto-hydrodynamic stability is assumed, and initial conditions are based on those ideally existing after the melting and ionization of a solid fiber of fusion fuel. P… more

Date: January 1, 1989

Creator: Krakowski, R. A.; Miller, R. L.; Bathke, C. G.; Werley, K. A.; Hagenson, R. L. (Los Alamos National Lab., NM (USA) & Phillips Petroleum Co., Bartlesville, OK (USA))

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Reactor Assessments of Advanced Bumpy Torus Configurations

Recently, several configurational approaches and concept improvement schemes were introduced for enhancing the performance of the basic ELMO Bumpy Torus (EBT) concept and for improving its reactor potential. These configurations include planar racetrack and square geometries, Andreoletti coil systems, and bumpy torus-stellarator hybrids (which include twisted racetrack and helical axis stellarator-snakey torus). Preliminary evaluations of reactor implications of each of these configurations hav… more

Date: January 1, 1983

Creator: Uckan, N. A.; Owen, L. W.; Spong, D. A.; Miller, R. L.; Ard, W. B.; Pipkins, J. F. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Fusion power from fast imploding liners

An approach to fusion power is described which proposes magnetically driving a thin metal shell at high velocity (approximately 10/sup 4/m/s) onto a warm (200 to 500 eV), dense (10/sup 24/ to 10/sup 25/ m/sup -3/) plasma. A description of the plasma/liner interaction by several analytic and numerical models is given. On the basis of theoretical scaling predictions, the advantages, disadvantages and uncertainties associated with a high-efficiency (recirculating power fraction less than or equal … more

Date: January 1, 1977

Creator: Krakowski, R. A.; Moses, R. W.; Miller, R. L. & Germwin, R. A.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Short-term pilot cooling tower tests

Two major problems are associated with the use of cooled geothermal water as coolant for the 5 MW(e) pilot plant at Raft River. They are: (1) a scaling potential owing to the chemical species present in solution, and (2) the corrosive nature of the geothermal water. Tests were conducted to obtain data so that methods can be devised to either reduce or eliminate effects from these problems. Data show that scaling can be prevented, but only by using a high concentration of dispersant. Pitting dat… more

Date: January 1, 1980

Creator: Suciu, D. F. & Miller, R. L.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Evaluation of nuclear facility decommissioning projects. Three Mile Island Unit 2 reactor coolant system and systems decontamination. Summary status report. Volume 1

This document summarizes information relating to the decontamination and restoration of the Three Mile Island Unit 2 reactor coolant system and other plant systems. Data have been collected from activity reports, reactor containment entry records, and other sources and entered in a computerized data system which permits extraction/manipulation of specific data which can be used in planning for recovery from a loss of coolant event similar to that experienced by the Three Mile Island Unit 2 on M… more

Date: May 1, 1986

Creator: Doerge, D. H.; Miller, R. L. & Scotti, K. S.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Conceptual design of the Fast-Liner Reactor (FLR) for fusion power

The generation of fusion power from the Fast-Liner Reactor (FLR) concept envisages the implosion of a thin (3-mm) metallic cylinder (0.2-m radius by 0.2-m length) onto a preinjected plasma. This plasma would be heated to thermonuclear temperatures by adiabatic compression, pressure confinement would be provided by the liner inertia, and thermal insulation of the wall-confined plasma would be established by an embedded azimuthal magnetic field. A 2- to 3-mu s burn would follow the approx. 10/sup… more

Date: February 1, 1979

Creator: Moses, R. W.; Krakowski, R. A. & Miller, R. L.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

ZTI: Preliminary characterization of an ignition class reversed-field pinch

A preliminary cost-optimized conceptual design of an intermediate-step, ignition-class RFP device (ZTI) for the study of alpha-particle physics in a DT plasma is reported. The ZTI design reflects potentially significant cost savings relative to similar ignition-class tokamaks for device parameters that reside on the path to a viable commercial RFP reactor. Reductions in both device costs and number of steps to commercialization portend a significantly reduced development cost for fusion. The me… more

Date: January 1, 1990

Creator: Bathke, C. G.; Krakowski, R. A.; Miller, R. L. & Werley, K. A.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

A DT fusion neutron source based on the reversed-field pinch

Results are presented from a preliminary scoping study of an ohmically-heated reversed-field pinch (RFP) operating with a steady-state DT fusion neutron wall loading in the range of 1 to 5 MW/m/sup 2/ while generating less than 100 MW total fusion power. These results are also useful in projecting the development of ignition/burn RFPs, as well as offering an economic source of DT neutrons for fusion nuclear testing. 14 refs.

Date: January 1, 1987

Creator: Bathke, C. G.; Krakowski, R. A.; Miller, R. L. & Werley, K. A.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

The TITAN Reversed-Field Pinch Reactor: Design-point determination and parametric studies

The multi-institutional TITAN study has examined the physics, technology, safety, and economics issues associated with the operation of a Reversed-Field Pinch (RFP) magnetic fusion reactor at high power density. A comprehensive system and trade study have been conducted as an integral and ongoing part of the reactor assessment. Attractive design points emerging from these parametric studies are subjected to more detailed analysis and design integration, the results of which are used to refine t… more

Date: January 1, 1987

Creator: Miller, R. L.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Compact reversed-field pinch reactors (CRFPR)

The unique confinement properties of the Reversed-Field Pinch (RFP) are exploited to examine physics and technical issues related to a compact, high-power-density fusion reactor. This resistive-coil, steady-state, toroidal device would use a dual-media power cycle driven by a fusion power core (FPC, i.e., plasma chamber, first wall, blanket, shield, and coils) with a power density and mass approaching values characteristic of pressurized-water fission rectors. A 1000-MWe(net) base case is selec… more

Date: January 1, 1986

Creator: Krakowski, R. A.; Miller, R. L.; Bathke, C. G.; Hagenson, R. L.; Copenhaver, C. & Werley, K. A.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Evaluation of nuclear facility decommissioning projects. Three Mile Island Unit 2 reactor building decontamination. Summary status report. Volume 2

This document summarizes information relating to decontamination of the Three Mile Island Unit 2 (TMI-2) reactor building. The report covers activities for the period of June 1, 1979 through March 29, 1985. The data collected from activity reports, reactor containment entry records, and other sources were entered into a computerized data system which permits extraction/manipulation of specific information which can be used in planning for recovery from an accident similar to that experienced at… more

Date: May 1, 1986

Creator: Doerge, D. H.; Miller, R. L. & Scotti, K. S.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Mild coal pretreatment to improve liquefaction reactivity

This report describes work completed during the fourth quarter of a three year project to study the effects of mild chemical pretreatment on coal dissolution reactivity during low severity liquefaction or coal/oil coprocessing. The overall objective of this research is to elucidate changes in the chemical and physical structure of coal by pretreating with methanol or other simple organic solvent and a trace amount of hydrochloric acid and measure the influence of these changes on coal dissoluti… more

Date: 1991-09~

Creator: Miller, R. L.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Comparison study of toroidal-field divertors for a compact reversed-field pinch reactor

Two divertor configurations for the Compact Reversed-Field Pinch Reactor (CRFPR) based on diverting the minority (toroidal) field have been reported. A critical factor in evaluating the performance of both poloidally symmetric and bundle divertor configurations is the accurate determination of the divertor connection length and the monitoring of magnetic islands introduced by the divertors, the latter being a three-dimensional effect. To this end the poloidal-field, toroidal-field, and divertor… more

Date: January 1, 1985

Creator: Bathke, C. G.; Krakowski, R. A. & Miller, R. L.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Process and analytical studies of enhanced low severity co-processing using selective coal pretreatment

This report describes progress on research during the seventh quarter of this contract dealing with applications of coal pretreatment techniques in coal hydroliquefaction. The objectives of the project are to investigate various coal pretreatment techniques and to determine the effect of these pretreatment procedures on the reactivity of the coal. Reactivity enhancement will be evaluated under both direct hydroliquefaction and co-processing conditions. Coal conversion utilizing low rank coals a… more

Date: 1990-09~

Creator: Baldwin, R. M. & Miller, R. L.

Item Type: Report

Partner: UNT Libraries Government Documents Department