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5
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135
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122
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22
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19
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Degree Department
Country
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Year
Month
Day
Analysis of market penetration scenarios of clean coal technologies in China using the LLNL China Energy Model
This paper presents the results of an analysis of the market penetration of Clean Coal Technologies in the electric utility market in China. The analysis is based on a model of the Chinese energy system developed at Lawrence Livermore National Laboratory. Under this model, the market penetration of a technology depends on the relative prices of all technologies in a market. The model assumes that for each technology there is a distribution of effective prices to the consumers in the market place. The prices for each technology computed in the model are assumed to be the means of these distributions: sometime the effective price is greater than this and sometimes it is less. Thus even a relatively expensive technology may cost less than its competitors in a fraction of the transactions. Using several scenarios about the possible dispersion of prices, we estimate the market share of CCTs over the next 50 years. We find that some CCTs penetrate under all scenarios, but the more expensive ones only show significant penetration when larger values of price dispersion are assumed. Generally the penetration of the CCTs is 15% or less of the market by 2020. However, advanced pulverized coal does exceed 15% …
Date:
August 17, 1998
Creator:
Lamont, A
Object Type:
Report
System:
The UNT Digital Library
Annual Hanford Site environmental permitting status report
The information contained and/or referenced in this Annual Hanford Site Environmental Permitting Status Report (Status Report) addresses the State Environmental Policy Act (SEPA) of 1971 and Condition II.W. of the Resource Conservation and Recovery Act (RCRA) of 1976 Permit, Dangerous Waste Portion (DW Portion). Condition II.W. of the RCRA Permit specifies the Permittees are responsible for all other applicable federal, state, and local permits for the development and operation of the Hanford Facility. Condition II.W. of the RCRA Permit specifies that the Permittees are to use their best efforts to obtain such permits. For the purposes of permit condition, `best efforts` means submittal of documentation and/or approval(s) in accordance with schedules specified in applicable regulations, or as determined through negotiations with the applicable regulatory agencies. This Status Report includes information on all existing and anticipated environmental permitting. Environmental permitting required by RCRA, the Hazardous and Solid Waste Amendments (HSWA) of 1984, and non-RCRA permitting (solid waste handling, Clean Air Act Amendments of 1990, Clean Water Act Amendments of 1987, Washington State waste discharge, and onsite sewage system) is addressed. Information on RCRA and non-RCRA is current as of July 31, 1998. For the purposes of RCRA and the State of …
Date:
September 17, 1998
Creator:
Sonnichsen, J. C.
Object Type:
Report
System:
The UNT Digital Library
Application of adaptive optics for controlling the NIF laser performance and spot size
The National Ignition Facility (NIF) laser will use a 192-beam multi-pass architecture capable of delivering several MJ of UV energy in temporal pulse formats varying from sub-ns square to 20 ns precisely-defined high-contrast shapes. Each beam wavefront will be subjected to effects of optics inhomogeneities, figuring errors, mounting distortions, prompt and slow thermal effects from flashlamps, driven and passive air-path turbulence, and gravity-driven deformations. A 39-actuator intra-cavity deformable mirror, controlled by data from a 77-lenslet Hartman sensor will be used to correct these wavefront aberrations and thus to assure that stringent farfield spot requirements are met. We have developed numerical models for the expected distortions, the operation of the adaptive optic system, and the anticipated effects on beam propagation, component damage, frequency conversion, and target-plane energy distribution. These models have been extensively validated against data from LLNL's Beamlet, and Amplab lasers. We review the expected beam wavefront aberrations and their potential for adverse effects on the laser performance, describe our model of the corrective system operation, and display our predictions for corrected-beam operation of the NI
Date:
August 17, 1998
Creator:
Auerbach, J.; Bliss, E.; Henesian, M.; Lawson, J.; Manes, K.; Renard, P. et al.
Object Type:
Article
System:
The UNT Digital Library
Application of Damage Detection Techniques Using Wind Turbine Modal Data
As any structure ages, its structural characteristics will also change. The goal of this work was to determine if modal response data fkom a wind turbine could be used in the detection of damage. The input stimuli to the wind turbine were from traditional modal hammer input and natural wind excitation. The structural response data was acquired using accelerometers mounted on the rotor of a parked and undamaged horizontal-axis wind turbine. The bolts at the root of one of the three blades were then loosened to simulate a damaged blade. The structural response data of the rotor was again recorded. The undamaged and damage-simulated datasets were compared using existing darnage detection algorithms. Also, a novel algorithm for combining the results of different damage detection algorithms was utilized in the assessment of the data. This paper summarizes the code development and discusses some preliminary damage detection results.
Date:
December 17, 1998
Creator:
Gross, E.; Rumsey, M.; Simmermacher, T. & Zadoks, R.I.
Object Type:
Article
System:
The UNT Digital Library
The Aransas Pass Progress (Aransas Pass, Tex.), Vol. 90, No. 14, Ed. 1 Wednesday, June 17, 1998
Weekly newspaper from Aransas Pass, Texas that includes local, state, and national news along with advertising.
Date:
June 17, 1998
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Archer County News (Archer City, Tex.), No. 38, Ed. 1 Thursday, September 17, 1998
Weekly newspaper from Archer City, Texas that includes local, state and national news along with advertising.
Date:
September 17, 1998
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Archer County News (Archer City, Tex.), No. 51, Ed. 1 Thursday, December 17, 1998
Weekly newspaper from Archer City, Texas that includes local, state and national news along with advertising.
Date:
December 17, 1998
Creator:
Lewis, Shelley
Object Type:
Newspaper
System:
The Portal to Texas History
Atomic scale modeling of boron transient diffusion in silicon
We presents results from a predictive atomic level simulation of Boron diffusion in Silicon under a wide variety of implant and annealing conditions. The parameters for this simulation have been extracted from first principle approximation models and molecular dynamics simulations. The results are compared with experiments showing good agreement in all cases. The parameters and reactions used have been implemented into a continuum-level model simulator.
Date:
June 17, 1998
Creator:
Caturla, M. J.; Diaz de la Rubia, T.; Foad, M.; Giles, M.; Johnson, M. D.; Law, M. et al.
Object Type:
Article
System:
The UNT Digital Library
Attrition Resistant Iron-Based Fischer-Tropsch Catalysts
The Fischer-Tropsch (F-T) reaction provides a way of converting coal-derived synthesis gas (CO+H{sub 2}) to liquid fuels. Since the reaction is highly exothermic, one of the major problems in control of the reaction is heat removal. Recent work has shown that the use of slurry bubble column reactors (SBCRs) can largely solve this problem. Iron-based (Fe) catalysts are preferred catalysts for F-T when using low CO/H{sub 2} ratio synthesis gases derived from modern coal gasifiers. This is because in addition to reasonable F-T activity, the F-T catalysts also possess high water gas shift (WGS) activity. However, a serious problem with the use of Fe catalysts in a SBCR is their tendency to undergo attrition. This can cause fouling/plugging of downstream filters and equipment, making the separation of catalyst from the oil/wax product very difficult if not impossible, and results in a steady loss of catalyst from the reactor. The objectives of this research are to develop a better understanding of the parameters affecting attrition resistance of Fe F-T catalysts suitable for use in SBCRs and to incorporate this understanding into the design of novel Fe catalysts having superior attrition resistance. Catalyst preparations will be based on the use of spray …
Date:
September 17, 1998
Creator:
Goodwin, James G., Jr.; Spivey, James J.; Jothimurugesan, K. & Gangwal, Santosh K.
Object Type:
Report
System:
The UNT Digital Library
Basement Surface Faulting and Topography for Savannah River Site and Vicinity
This report integrates the data from more than 60 basement borings and over 100 miles of seismic reflection profiling acquired on the Savannah River Site to map the topography of the basement (unweathered rock) surface and faulting recorded on this surface.
Date:
December 17, 1998
Creator:
Cumbest, R.J.
Object Type:
Report
System:
The UNT Digital Library
The Bastrop Advertiser (Bastrop, Tex.), Vol. 144, No. 93, Ed. 1 Saturday, January 17, 1998
Semi-weekly newspaper from Bastrop, Texas that includes local, state, and national news along with advertising.
Date:
January 17, 1998
Creator:
McAuley, Davis
Object Type:
Newspaper
System:
The Portal to Texas History
The Bastrop Advertiser (Bastrop, Tex.), Vol. 145, No. 57, Ed. 1 Thursday, September 17, 1998
Semi-weekly newspaper from Bastrop, Texas that includes local, state, and national news along with advertising.
Date:
September 17, 1998
Creator:
McAuley, Davis
Object Type:
Newspaper
System:
The Portal to Texas History
The Bastrop Advertiser (Bastrop, Tex.), Vol. 145, No. 66, Ed. 1 Saturday, October 17, 1998
Semi-weekly newspaper from Bastrop, Texas that includes local, state, and national news along with advertising.
Date:
October 17, 1998
Creator:
McAuley, Davis
Object Type:
Newspaper
System:
The Portal to Texas History
The Bastrop Advertiser (Bastrop, Tex.), Vol. 145, No. 83, Ed. 1 Thursday, December 17, 1998
Semi-weekly newspaper from Bastrop, Texas that includes local, state, and national news along with advertising.
Date:
December 17, 1998
Creator:
McAuley, Davis
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 76, No. 93, Ed. 1 Tuesday, February 17, 1998
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
February 17, 1998
Creator:
Dobbs, Gary
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 76, No. 117, Ed. 1 Tuesday, March 17, 1998
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
March 17, 1998
Creator:
Dobbs, Gary
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 76, No. 144, Ed. 1 Friday, April 17, 1998
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
April 17, 1998
Creator:
Dobbs, Gary
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 76, No. 169, Ed. 1 Sunday, May 17, 1998
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
May 17, 1998
Creator:
Dobbs, Gary
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 76, No. 196, Ed. 1 Wednesday, June 17, 1998
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
June 17, 1998
Creator:
Dobbs, Gary
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 76, No. 222, Ed. 1 Friday, July 17, 1998
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
July 17, 1998
Creator:
Dobbs, Gary
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 76, No. 248, Ed. 1 Monday, August 17, 1998
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
August 17, 1998
Creator:
Dobbs, Gary
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 76, No. 275, Ed. 1 Thursday, September 17, 1998
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
September 17, 1998
Creator:
Dobbs, Gary
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 77, No. 15, Ed. 1 Tuesday, November 17, 1998
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
November 17, 1998
Creator:
Dobbs, Gary
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 77, No. 41, Ed. 1 Thursday, December 17, 1998
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
December 17, 1998
Creator:
Dobbs, Gary
Object Type:
Newspaper
System:
The Portal to Texas History