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The attitudes of science policy, environmental, and utility leaders on US energy issues and fusion

Description: One example of basic and applied research at LLNL that has produced major, highly visible scientific and engineering advances has been the research related to controlled fusion energy. Continuing experimentation at LLNL and elsewhere is likely to demonstrate that fusion is a viable, inexhaustible alternative source of energy. Having conducted major fusion energy experiments for over 30 years at LLNL, it scientists and engineers recognized the enormous challenges that lay ahead in this important… more
Date: November 1, 1986
Creator: Miller, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Dual permeability modeling of flow in a fractured geothermal reservoir

Description: A three dimensional fracture system synthesis and flow simulation has been developed to correlate drawdown characteristics measured in a geothermal well and to provide the basis for an analysis of tracer tests. A new dual permeability approach was developed which incorporates simulations at two levels to better represent a discrete fracture system within computer limitations. The first incorporates a discrete simulation of the largest fractures in the system plus distributed or representative e… more
Date: January 1, 1986
Creator: Miller, J. D. & Allman, D. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Dual permeability modeling of solute transport in discrete fracture systems

Description: The flow and transport properties of a dual permeability model have been evaluated in a form which allows discrete simulation of the complete range of fracture size in a series of successively larger models up to reservoir scale. In matrix dual permeability modeling, the flow and transport processes occur in both matrix cells and the superimposed discrete fractures. The matrix cell models use Darcian flow and Fickian transport relationships to represent processes occurring in the numerous small… more
Date: January 1, 1988
Creator: Miller, J. D. & Clemo, T. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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The hydrophobic character of nonsulfide mineral surfaces as influenced by double-bond reactions of adsorbed unsaturated collector species

Description: A unique in-situ sampling technique has been developed which allowed for real-time analysis of surfactant adsorption processes on mineral single crystals. This technique couples FT-IR spectroscopy and internal reflection spectroscopy (FT-IR/IRS) and the mineral single crystal is referred to as a reactive'' internal reflect element (IRE). The single crystal is reactive in the sense that the adsorption occurs directly upon the surface of the IRE, which also serves to transmit IR electromagnetic r… more
Date: July 1991
Creator: Miller, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Characterization of multiphase fluid flow during air-sparged hydrocyclone flotation by x-ray CT

Description: During this quarter a new set of experiments was carried out with and without collector in order to understand the flow patterns inside the ASH unit for both hydrophilic and hydrophobic particles. These tests were designed to study the effects of percent solids in the feed, A* - the nondimensional ratio of overflow opening area to underflow opening area, and the effect of collector addition on the flow characteristics. These experiments were done with 0%, 5% and 15% solids in the feed. The latt… more
Date: March 1, 1993
Creator: Miller, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Design optimization analysis of the new SPR III-M reactor

Description: This report discusses the finite element method analysis which was used to refine the SPR III-M reactor fuel assembly mechanical design to withstand the stresses and strains of pulse-mode operation, which induces thermal shock loading in the fuel assembly components. The original reactor design was analyzed for its structural response to separate pulses at increasingly severe levels. Subsequent calculations at one consistent pulse level examined several design modifications, which will result i… more
Date: December 31, 1993
Creator: Miller, J. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Characterization of Multiphase Fluid Flow During Air-Sparged Hydrocyclone Flotation by X-Ray Ct. Thirteenth Quarterly Report: 14 August--13 November, 1993

Description: The research activities during this quarter of the DOE project, {open_quotes}Characterization of Multiphase Fluid Flow During Air-Sparged Hydrocyclone Flotation{close_quotes}, involved a detailed parametric study of the flotation response of the ASH, establishing an empirical correlation between flotation response and operating variables, and development of a phenomenological description of the observed responses. In these experiments with quartz particles, flotation response is essentially cha… more
Date: November 16, 1993
Creator: Miller, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Refining of fossil resin flotation concentrate from western coal. First quarterly final report, February 23, 1993--March 31, 1993

Description: During the first quarter of the project, from February 22, 1993 to March 31, 1993, the major work is to conduct project work plan and to organize the research term in order to successfully conduct this fossil resin refining project. Under a previous DOE-funded program, University of Utah and APT conducted a serious pilot-plant tests of selective flotation of fossil resin from Wasatch plateau coal (both UPL coal and CO-OP coal mines) of south central Utah. About 200 lbs high grade fossil resin f… more
Date: April 30, 1993
Creator: Miller, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The hydrophobic character of nonsulfide mineral surfaces as influenced by double-bond reactions of adsorbed unsaturated collector species. Progress report, 15 December 1992--14 December 1993

Description: Different collector adsorption phenomena including adsorption density, adsorption state, and conformation have been examined for soluble salt, semi-soluble salt and insoluble oxide mineral systems. In the case of the soluble salt system, the influence of crystal lattice defects on the surface charge of KCl and its flotation response was studied. In the case of semi-soluble salt minerals, the behavior of fatty acid collectors adsorbed at the surfaces of calcite and fluorite was determined by in-… more
Date: July 1, 1993
Creator: Miller, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermomechanical analysis of fast-burst reactors

Description: Fast-burst reactors are designed to provide intense, short-duration pulses of neutrons. The fission reaction also produces extreme time-dependent heating of the nuclear fuel. An existing transient-dynamic finite element code was modified specifically to compute the time-dependent stresses and displacements due to thermal shock loads of reactors. Thermomechanical analysis was then applied to determine structural feasibility of various concepts for an EDNA-type reactor and to optimize the mechani… more
Date: August 1, 1994
Creator: Miller, J. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Characterization of multiphase fluid flow during air-sparged hydrocyclone flotation by x-ray CT. Tenth quarterly report, 14 November 1992--13 February 1993

Description: During this quarter a new set of experiments was carried out with and without collector in order to understand the flow patterns inside the ASH unit for both hydrophilic and hydrophobic particles. These tests were designed to study the effects of percent solids in the feed, A* - the nondimensional ratio of overflow opening area to underflow opening area, and the effect of collector addition on the flow characteristics. These experiments were done with 0%, 5% and 15% solids in the feed. The latt… more
Date: March 1, 1993
Creator: Miller, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The hydrophobic character of nonsulfide mineral surfaces as influenced by double-bond reactions of adsorbed unsaturated collector species. Progress report

Description: The primary goal of this research is to improve the flotation efficiency of nonsulfide mineral systems by establishing the fundamental features of collector adsorption reactions and developing appropriate chemical control strategies. In situ real-time FR-IR/IRS measurements, nonequilibrium electrophoresis, vacuum flotation, contact-angle goniometry, and laser Raman spectroscopy have been used to accomplish this goal. These experimental techniques have led to the determination of important infor… more
Date: June 1, 1992
Creator: Miller, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Characterization of multiphase fluid flow during air-sparged hydrocyclone flotation by x-ray CT

Description: The effect of A* (the dimensionless ratio of overflow opening area to underflow opening area) on the fluid flow behavior of the 2 inch ASH-2C unit was studied for different percentage of solids in the suspension. Limestone, a hydrophilic solid was chosen for study. The particle size of the solids was taken as [minus]100 [plus]200 mesh. Three different concentrations of solids in the suspension were considered, 5, 10 and 20% by weight. The corresponding pulp densities of the feed suspension for … more
Date: August 17, 1992
Creator: Miller, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The hydrophobic character of nonsulfide mineral surfaces as influenced by double-bond reactions of adsorbed unsaturated collector species. Progress report, 15 December 1990--14 December 1991

Description: A unique in-situ sampling technique has been developed which allowed for real-time analysis of surfactant adsorption processes on mineral single crystals. This technique couples FT-IR spectroscopy and internal reflection spectroscopy (FT-IR/IRS) and the mineral single crystal is referred to as a ``reactive`` internal reflect element (IRE). The single crystal is reactive in the sense that the adsorption occurs directly upon the surface of the IRE, which also serves to transmit IR electromagnetic… more
Date: July 1, 1991
Creator: Miller, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Field comparison of conventional HVAC systems with a residential gas-engine-driven heat pump

Description: Through its Office of Federal Energy Management Program (FEMP), the US Department of Energy (DOE) provides technical and administrative support to federal agency programs directed at reducing energy consumption and cost in federal buildings and facilities. One such program is the New Technology Demonstration Program (NTDP). In this context, NTDP is a demonstration of a US energy-related technology at a federal site. Through a partnership with a federal site, the utility serving the site, a manu… more
Date: August 1, 1994
Creator: Miller, J. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Characterization of multiphase fluid flow during air-sparged hydrocyclone flotation by x-ray CT. Twelfth quarterly report, 14 May--13 August 1993

Description: During this quarter some experiments from the previous set were repeated to check the reproducibility of the results. Also, a new set of experiments was carried out to study the effects of (1) collector dosage, (2) Q* -- the nondimensional ratio of air flow rate to slurry flow rate, and (3) slurry pressure on the flow characteristics. Four different Q* values with hydrophobic particles in the feed slurry were studied. The value of A*, the dimensionless ratio of overflow opening area to underflo… more
Date: August 13, 1993
Creator: Miller, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Characterization of multiphase fluid flow during air-sparged hydrocyclone flotation by x-ray CT. Eighth quarterly report, 14 May 1992--13 August 1992

Description: The effect of A* (the dimensionless ratio of overflow opening area to underflow opening area) on the fluid flow behavior of the 2 inch ASH-2C unit was studied for different percentage of solids in the suspension. Limestone, a hydrophilic solid was chosen for study. The particle size of the solids was taken as {minus}100 {plus}200 mesh. Three different concentrations of solids in the suspension were considered, 5, 10 and 20% by weight. The corresponding pulp densities of the feed suspension for … more
Date: August 17, 1992
Creator: Miller, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The hydrophobic character of nonsulfide mineral surfaces as influenced by double-bond reactions of adsorbed unsaturated collector species. Progress report, 15 December 1992--14 December 1995

Description: Goal is to provide a basis for improved flotation separation efficiency in nonsulfide minerals by establishing the collector (surfactant) adsorption reactions and developing appropriate surface chemistry control strategies. In-situ measurements of surfactant adsorption were made for selected nonsulfide mineral systems using FT-IR/IRS with reactive internal reflection elements. The IRS adsorption density equation was developed to measure the surfactant adsorption, and its validity was confirmed … more
Date: June 1, 1995
Creator: Miller, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Characterization of multiphase fluid flow during air-sparged hydrocyclone flotation by x-ray CT. Final report, 14 August 1990--13 August 1994

Description: Air sparged hydrocyclone (ASH) flotation is a new particle separation technology that has been developed at the University of Utah. This technology combines froth flotation principles with the flow characteristics of a hydrocyclone such that the ASH system can perform flotation separations in less than a second. This feature provides the ASH with a high specific capacity, 100 to 600 times greater than the specific capacity of conventional flotation machines. In an effort to develop a more detai… more
Date: October 18, 1994
Creator: Miller, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of an On-Line Coal Washability Analyzer

Description: Washability analysis is the basis for nearly all coal preparation plant separations. Unfortunately, there are no on-line techniques for determining this most fundamental of all coal cleaning information. In light of recent successes at the University of Utah, it now appears possible to determine coal washability on-line through the use of x-ray computed tomography (CT) analysis. The successful development of such a device is critical to the establishment of process control and automated coal bl… more
Date: September 30, 1999
Creator: Miller, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Field monitoring and evaluation of a residential gas-engine-driven heat pump: Volume 1, Cooling season

Description: The Federal government is the largest single energy consumer in the United States; consumption approaches 1.5 quads/year of energy (1 quad = 10{sup 15} Btu) at a cost valued at nearly $10 billion annually. The US Department of Energy (DOE) Federal Energy Management Program (FEMP) supports efforts to reduce energy use and associated expenses in the Federal sector. One such effort, the New Technology Demonstration Program (NTDP), seeks to evaluate new energy-saving US technologies and secure thei… more
Date: September 1, 1995
Creator: Miller, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Field monitoring and evaluation of a residential gas-engine-driven heat pump: Volume 2, Heating season

Description: The Federal Government is the largest single energy consumer in the United States; consumption approaches 1.5 quads/year of energy (1 quad = 10{sup 15} Btu) at a cost valued at nearly $10 billion annually. The US Department of Energy (DOE) Federal Energy Management Program (FEMP) supports efforts to reduce energy use and associated expenses in the Federal sector. One such effort, the New Technology Demonstration Program (NTDP), seeks to evaluate new energy-saving US technologies and secure thei… more
Date: November 1, 1995
Creator: Miller, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Estimates of Refrigerator Loads in Public Housing Based on Metered Consumption Data

Description: The New York Power Authority (NYPA), the New York City Housing Authority (NYCHA), and the U.S. Departments of Housing and Urban Development (HUD) and Energy (DOE) have joined in a project to replace refrigerators in New York City public housing with new, highly energy-efficient models. This project laid the ground work for the Consortium for Energy Efficiency (CEE) and DOE to enable housing authorities throughout the United States to bulk-purchase energy-efficient appliances. DOE helped develop… more
Date: September 11, 1998
Creator: Miller, JD & Pratt, RG
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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