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Westinghouse program overview
The Westinghouse Solid Oxide Fuel Cell Development Program has been making rapid progress towards commercialization. The vision of a cost-competitive, ultra-high efficiency, environmentally friendly SOFC power generation product line for distributed power and cogeneration applications is nearing reality. This vision is centered around Pressurized SOFC/Gas Turbine Combined Cycle power generation systems in the 1-100 MWe power range, which are capable of producing electricity at efficiencies between 60 and 75%, depending on size and specific turbines selected. The fuel cell is air electrode supported.
Date:
December 31, 1996
Creator:
George, R.
Object Type:
Article
System:
The UNT Digital Library
Wet solids flow enhancemant
WE used glass beads of different sizes as.a model system to study the flow enhancing properties of Octadecyltrichlorosilane (OTS). 0TS provides Si(CH{sub 2}){sub 17}CH{sub 3} groups that bind with the surface hydrox groups to make it hydrophobic. Experimental data showed, indeed, that surface hydrophobicity promotes the flow of wet granular materials. Mixtures of different percentage of silanized/unsilanized particles were prepared for tensile strength measurements. The tensile strength decreased as more silanized particles were added to the samples. The relationship between dimensionless tensile strength and void fraction followed the correlation found by Pierrat (1994). Contact angles were larger for the silanized particles, as compared with unsilanized ones.
Date:
December 31, 1996
Creator:
Caram, H. S.; Foster, N. & Wildman, D. J.
Object Type:
Report
System:
The UNT Digital Library
Wetting behavior of selected crude oil/brine/rock systems. Topical report, March 1, 1995--March 31, 1996
Previous studies of crude oil/brine/rock (COBR) and related ensembles showed that wettability and its effect on oil recovery depend on numerous complex interactions. In the present work, the wettability of COBR ensembles prepared using Prudhoe Bay crude oil, a synthetic formation brine, and Berea Sandstone was varied by systematic change in initial water saturation and length of aging time at reservoir temperature (88 C). All displacement tests were run at ambient temperature. Various degrees of water wetness were achieved and quantified by a modified Amott wettability index to water, the relative pseudo work of imbibition, and a newly defined apparent advancing dynamic contact angle. Pairs of spontaneous imbibition (oil recovery by spontaneous imbibition of water) and waterflood (oil recovery vs. pore volumes of water injected) curves were measured for each of the induced wetting states. Several trends were observed. Imbibition rate, and hence water wetness, decreased with increase in aging time and with decrease in initial water saturation. Breakthrough recoveries and final oil recovery by waterflooding increased with decrease in water wetness. Correlations between water wetness and oil recovery by waterflooding and spontaneous imbibition are presented.
Date:
December 31, 1996
Creator:
Zhou, X.; Morrow, N.R. & Ma, S.
Object Type:
Report
System:
The UNT Digital Library
[Wheeler Avenue Baptist Church Bulletin: March 31, 1996]
Church bulletin listing the order of worship for the 7:30 and 11:00 Sunday morning services at the Wheeler Avenue Baptist Church, as well as various notes about upcoming events, congregational news, and other information of relevance to church members.
Date:
March 31, 1996
Creator:
Wheeler Avenue Baptist Church (Houston, Tex.)
Object Type:
Pamphlet
System:
The Portal to Texas History
Why mechanical subsystems are difficult to integrate
Though the theme of System Engineering is integration, and it is normal to attempt in integration to ignore the lines between disciplines, there are distinct characteristics of the mechanical design portion of any major system design project that make this difficult. How these characteristics compound the difficulty of integration is discussed and means to minimize the associated obstacles are suggested.
Date:
December 31, 1996
Creator:
Segalman, D.J.; Ortiz, K. & Wesner, J.J.
Object Type:
Article
System:
The UNT Digital Library
WINDII atmospheric wave airglow imaging
Preliminary WINDII nighttime airglow wave-imaging data in the UARS rolldown attitude has been analyzed with the goal to survey gravity waves near the upper boundary of the middle atmosphere. Wave analysis is performed on O[sub 2](0,0) emissions from a selected 1[sup 0] x 1[sup 0] oblique view of the airglow layer at approximately 95 km altitude, which has no direct earth background and only an atmospheric background which is optically thick for the 0[sub 2](0,0) emission. From a small data set, orbital imaging of atmospheric wave structures is demonstrated, with indication of large variations in wave activity across land and sea. Comparison ground-based imagery is discussed with respect to similarity of wave variations across land/sea boundaries and future orbital mosaic image construction.
Date:
December 31, 1996
Creator:
Armstrong, William T.; Hoppe, U. P.; Solheim, B. H. & Shepherd, G. G.
Object Type:
Article
System:
The UNT Digital Library
Winnetka deformation zone: Surface expression of coactive slip on a blind fault during the Northridge earthquake sequence, California. Evidence that coactive faulting occurred in the Canoga Park, Winnetka, and Northridge areas during the 17 January 1994, Northridge, California earthquake
Measurements of normalized length changes of streets over an area of 9 km{sup 2} in San Fernando Valley of Los Angeles, California, define a distinctive strain pattern that may well reflect blind faulting during the 1994 Northridge earthquake. Strain magnitudes are about 3 {times} 10{sup {minus}4}, locally 10{sup {minus}3}. They define a deformation zone trending diagonally from near Canoga Park in the southwest, through Winnetka, to near Northridge in the northeast. The deformation zone is about 4.5 km long and 1 km wide. The northwestern two-thirds of the zone is a belt of extension of streets, and the southeastern one-third is a belt of shortening of streets. On the northwest and southeast sides of the deformation zone the magnitude of the strains is too small to measure, less than 10{sup {minus}4}. Complete states of strain measured in the northeastern half of the deformation zone show that the directions of principal strains are parallel and normal to the walls of the zone, so the zone is not a strike-slip zone. The magnitudes of strains measured in the northeastern part of the Winnetka area were large enough to fracture concrete and soils, and the area of larger strains correlates with the area …
Date:
December 31, 1996
Creator:
Cruikshank, K. M.; Johnson, A. M.; Fleming, R. W. & Jones, R. L.
Object Type:
Report
System:
The UNT Digital Library
WIPP TRU waste transportation: A circle of safety
To support the mission of the Waste Isolation Pilot Plant (WIPP), the US department of Energy (DOE) and its management and operating contractor, the Waste Isolation Division (WID) of Westinghouse Electric Corporation, required a transportation system that would meet regulatory requirements and address the issues and concerns of the various stakeholders. The transport system is designed to transport 20,000 or more shipments of contact handled, radioactive, transuranic (TRU) waste over a thirty-five-year period in a safe manner. The system must also meet or exceed all safety requirements. To achieve this objective, the DOE and Westinghouse worked closely with the Western Governors` Association (WGA), the Southern States Energy Board (SSEB), the Indian tribes, and outside agencies to identify their concerns on the transport of radioactive material. Using the various inputs, the DOE and Westinghouse built a transportation system that has set standards for the transportation industry. The system incorporates an integrated equipment design, highly qualified drivers, training for emergency response personnel, and testing and evaluation of both equipment and personnel. Each portion of the system is like the arc of a circle. By connecting the arcs, a circle of safety is made around the transport of TRU wastes.
Date:
December 31, 1996
Creator:
Winkel, J. J. & Spooner, O. R.
Object Type:
Report
System:
The UNT Digital Library
Working group II report: Production and dynamics of high brightness beams
This paper summarizes the main discussions of the Working Group on the Production and Dynamics of High Brightness Beams. The following topics are covered in this paper. Proposed new electron sources and needed research on existing sources is covered. The discussions on issues relating to the description of phase space on non-thermalized electron beam distributions and the theoretical modeling on non-thermalized electron beam distributions is presented. Finally, the present status of the theoretical modeling of beam transport in bends is given.
Date:
December 31, 1996
Creator:
Sheffield, R.L.
Object Type:
Article
System:
The UNT Digital Library
Workshop on Feedback Stabilization of MHD Stabilities
The feedback stabilization of MHD instabilities is an area of research that is critical for improving the performance and economic attractiveness of magnetic confinement devices. A Workshop dedicated to feedback stabilization of MHD instabilities was held from December 11-13, 1996 at the Princeton Plasma Physics Laboratory, Princeton NJ, USA. The resulting presentations, conclusions, and recommendations are summarized.
Date:
December 31, 1996
Creator:
McGuire, K.; Kugel, H.; La Haye, R.; Mauel, M.; Nevins, W. & Prager, S.
Object Type:
Article
System:
The UNT Digital Library
A Workshop on Methods for Neutron Scattering Instrument Design. Introduction and Summary
The future of neutron and x-ray scattering instrument development and international cooperation was the focus of the workshop on ``Methods for Neutron Scattering Instrument Design`` September 23-25 at the E.O. Lawrence Berkeley National Laboratory. These proceedings are a collection of a portion of the invited and contributed presentations.
Date:
December 31, 1996
Creator:
Hjelm, Rex P.
Object Type:
Article
System:
The UNT Digital Library
WVU cooperative agreement, decontamination systems information and research program, deployment support leading to implementation
This program at West Virginia University is a Cooperative Agreement that focuses on R&D associated with hazardous waste remediation problems existing at DOE, Corps of Engineers, and private sector sites. The Agreement builds on a unique combination of resources coupling university researchers with DOE sponsored small businesses, leading toward field tests and large scale technology demonstrations of environmental technologies. Most of the Agreement`s projects are categorized in the Technology Maturity Levels under Gates 3-Advanced Development, Gate 4-Engineering Development, and Gate 5-Demonstration. The program includes a diversity of projects: subsurface contaminants; mixed wastes; mixed wastes/efficient separations; mixed wastes/characterization, monitoring, and sensor technologies; and decontamination and decommissioning/efficient separations.
Date:
December 31, 1996
Creator:
Cook, E.E.
Object Type:
Article
System:
The UNT Digital Library
The Wylie News (Wylie, Tex.), Vol. 49, No. 35, Ed. 1 Wednesday, January 31, 1996
Weekly newspaper from Wylie, Texas that includes local, state, and national news along with advertising.
Date:
January 31, 1996
Creator:
Cook, Margaret
Object Type:
Newspaper
System:
The Portal to Texas History
The Wylie News (Wylie, Tex.), Vol. 50, No. 9, Ed. 1 Wednesday, July 31, 1996
Weekly newspaper from Wylie, Texas that includes local, state and national news along with advertising.
Date:
July 31, 1996
Creator:
Cook, Margaret
Object Type:
Newspaper
System:
The Portal to Texas History
The Wynnewood Gazette (Wynnewood, Okla.), Vol. 94, No. 30, Ed. 1 Thursday, October 31, 1996
Weekly newspaper from Wynnewood, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 31, 1996
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
X-Ray Absorption and Electrochemical Studies of Direct Methanol Fuel Cell Catalysts
In order for polymer electrolyte fuel cells to operate directly on methanol instead of hydrogen, methanol oxidation must be catalyzed in the acidic cell environment. Pt-Ru and Pt-Ru oxide are considered to be the most active catalysts for this purpose; Ru enhances the Pt activity for reasons not yet fully understood. XAS and electrochemical techniques were used to study this enhancement. Preliminary results indicate that Ru does effect the d-band occupancy of Pt, which in turn may effect the kinetics of the methanol oxidation reaction on this metal by altering the strength of the Pt-CO bond. Further research is needed.
Date:
December 31, 1996
Creator:
Zurawski, D. J.; Aldykiewicz, A. J., (Jr.); Baxter, S. F. & Krumpelt, M.
Object Type:
Article
System:
The UNT Digital Library
Yield effects on bale density and time required for commercial harvesting and baling of switchgrass
The objective of this study was to obtain mowing, raking and baling data for switchgrass yields to determine whether economic projections for harvesting and baling are valid for switchgrass as an energy crop. The study demonstrated that data for haymaking cannot be extrapolated to switchgrass.
Date:
December 31, 1996
Creator:
Bransby, D.; Sladden, S. & Downing, M.
Object Type:
Article
System:
The UNT Digital Library
Yield stress anomaly in B2 FeAl
The studies on yield stress anomaly of B2 FeAl single crystals are reviewed in this paper. A positive temperature dependence of yield stress, so-called yield stress anomaly, is observed in B2 FeAl in which excess vacancies are fully annealed out. Associated with the anomaly, characteristic asymmetry is found between tension and compression. While the strain-rate sensitivity is almost zero in the temperature range of the yield stress anomaly, the stress relaxation becomes significant with increasing temperature, indicating that a recovery process is thermally activated. It is ascertained by the two-surface trace analysis that slip transition from <111> direction at intermediate temperature to <100> at high temperature occurs around the peak temperature. Even at the peak temperature, in addition, operative slip vector for yielding is confirmed to be predominantly <111> by TEM. Also, it is observed that <111>-type superdislocations are frequently climb-dissociated in the temperature range of the anomaly. APB formation on {l_brace}111{r_brace} plane is energetically favorable, which is in agreement with the Flinn`s calculation for the B2 superlattice that APB energy on {l_brace}111{r_brace} plane is lower than that on {l_brace}110{r_brace} plane. Such an anisotropy of APB energy would offer specific driving force for the climb dissociation on <111> superdislocations. On …
Date:
December 31, 1996
Creator:
Yoshimi, K.; Hanada, S. & Yoo, M.H.
Object Type:
Article
System:
The UNT Digital Library
A zooming Web browser
We are developing a prototype zooming World-Wide Web browser within Pad++, a multiscale graphical environment. Instead of having a single page visible at a time, multiple pages and the links between them are depicted on a large zoomable information surface. Pages are scaled so that the page in focus is clearly readable with connected pages shown at smaller scales to provide context. We quantitatively compared performance with the Pad++ Web browser and Netscape in several different scenarios. We examined how quickly users could answer questions about a specific Web site designed for this test. Initially we found that subjects answered questions slightly slower with Pad++ than with Netscape. After analyzing the results of this study, we implemented several changes to the Pad++ Web browser, and repeated one Pad++ condition. After improvements were made to the Pad++ browser, subjects using Pad++ answered questions 23% faster than those using Netscape.
Date:
December 31, 1996
Creator:
Bederson, Benjamin B.; Hollan, James D.; Stewart, Jason; Rogers, David; Vick, David; Ring, Laura et al.
Object Type:
Article
System:
The UNT Digital Library