Simulations of merging and squeezing bunches in booster and AGS (open access)

Simulations of merging and squeezing bunches in booster and AGS

N/A
Date: July 30, 2012
Creator: Gardner, C. J.
Object Type: Report
System: The UNT Digital Library
Messiah College Biodiesel Fuel Generation Project Final Technical Report (open access)

Messiah College Biodiesel Fuel Generation Project Final Technical Report

Many obvious and significant concerns arise when considering the concept of small-scale biodiesel production. Does the fuel produced meet the stringent requirements set by the commercial biodiesel industry? Is the process safe? How are small-scale producers collecting and transporting waste vegetable oil? How is waste from the biodiesel production process handled by small-scale producers? These concerns and many others were the focus of the research preformed in the Messiah College Biodiesel Fuel Generation project over the last three years. This project was a unique research program in which undergraduate engineering students at Messiah College set out to research the feasibility of small-biodiesel production for application on a campus of approximately 3000 students. This Department of Energy (DOE) funded research program developed out of almost a decade of small-scale biodiesel research and development work performed by students at Messiah College. Over the course of the last three years the research team focused on four key areas related to small-scale biodiesel production: Quality Testing and Assurance, Process and Processor Research, Process and Processor Development, and Community Education. The objectives for the Messiah College Biodiesel Fuel Generation Project included the following: 1. Preparing a laboratory facility for the development and optimization of processors …
Date: March 30, 2012
Creator: Zummo, Michael M.; Munson, J.; Derr, A.; Zemple, T.; Bray, S.; Studer, B. et al.
Object Type: Report
System: The UNT Digital Library
Port Aransas South Jetty (Port Aransas, Tex.), Vol. 41, No. 35, Ed. 1 Thursday, August 30, 2012 (open access)

Port Aransas South Jetty (Port Aransas, Tex.), Vol. 41, No. 35, Ed. 1 Thursday, August 30, 2012

Weekly newspaper from Port Aransas, Texas on Mustang Island that includes local, state and national news along with extensive advertising.
Date: August 30, 2012
Creator: Judson, Mary Henkel
Object Type: Newspaper
System: The Portal to Texas History
Hudspeth County Herald and Dell Valley Review (Dell City, Tex.), Vol. 56, No. 20, Ed. 1 Friday, March 30, 2012 (open access)

Hudspeth County Herald and Dell Valley Review (Dell City, Tex.), Vol. 56, No. 20, Ed. 1 Friday, March 30, 2012

Weekly newspaper from Dell City, Texas that includes local, state, and national news along with advertising.
Date: March 30, 2012
Creator: Stuart, Andrew
Object Type: Newspaper
System: The Portal to Texas History
Electra Star-News (Electra, Tex.), Vol. 106, No. 3, Ed. 1 Thursday, August 30, 2012 (open access)

Electra Star-News (Electra, Tex.), Vol. 106, No. 3, Ed. 1 Thursday, August 30, 2012

Weekly newspaper from Electra, Texas that includes local, state, and national news along with advertising.
Date: August 30, 2012
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Polk County Enterprise (Livingston, Tex.), Vol. 130, No. 74, Ed. 1 Sunday, September 30, 2012 (open access)

Polk County Enterprise (Livingston, Tex.), Vol. 130, No. 74, Ed. 1 Sunday, September 30, 2012

Semi-weekly newspaper from Livingston, Texas that includes local, state and national news along with advertising.
Date: September 30, 2012
Creator: Reddell, Valerie
Object Type: Newspaper
System: The Portal to Texas History
Chemical Facility Security: Issues and Options for the 112th Congress (open access)

Chemical Facility Security: Issues and Options for the 112th Congress

Report that describes several policy issues regarding chemical facility security and identifies policy options for congressional consideration.
Date: November 30, 2012
Creator: Shea, Dana A.
Object Type: Report
System: The UNT Digital Library
Carbon Capture and Sequestration: A Regulatory Gap Assessment (open access)

Carbon Capture and Sequestration: A Regulatory Gap Assessment

Though a potentially significant climate change mitigation strategy, carbon capture and sequestration (CCS) remains mired in demonstration and development rather than proceeding to full-scale commercialization. Prior studies have suggested numerous reasons for this stagnation. This Report seeks to empirically assess those claims. Using an anonymous opinion survey completed by over 200 individuals involved in CCS, it concludes that there are four primary barriers to CCS commercialization: (1) cost, (2) lack of a carbon price, (3) liability risks, and (4) lack of a comprehensive regulatory regime. These results largely confirm previous work. They also, however, expose a key barrier that prior studies have overlooked: the need for comprehensive, rather than piecemeal, CCS regulation. The survey data clearly show that the CCS community sees this as one of the most needed incentives for CCS deployment. The community also has a relatively clear idea of what that regulation should entail: a cooperative federalism approach that directly addresses liability concerns and that generally does not upset traditional lines of federal-state authority.
Date: April 30, 2012
Creator: Davies, Lincoln; Uchitel, Kirsten; Ruple, John & Tanana, Heather
Object Type: Report
System: The UNT Digital Library
Carbon Capture and Sequestration: A Regulatory Gap Assessment (open access)

Carbon Capture and Sequestration: A Regulatory Gap Assessment

Though a potentially significant climate change mitigation strategy, carbon capture and sequestration (CCS) remains mired in demonstration and development rather than proceeding to full-scale commercialization. Prior studies have suggested numerous reasons for this stagnation. This Report seeks to empirically assess those claims. Using an anonymous opinion survey completed by over 200 individuals involved in CCS, it concludes that there are four primary barriers to CCS commercialization: (1) cost, (2) lack of a carbon price, (3) liability risks, and (4) lack of a comprehensive regulatory regime. These results largely confirm previous work. They also, however, expose a key barrier that prior studies have overlooked: the need for comprehensive, rather than piecemeal, CCS regulation. The survey data clearly show that the CCS community sees this as one of the most needed incentives for CCS deployment. The community also has a relatively clear idea of what that regulation should entail: a cooperative federalism approach that directly addresses liability concerns and that generally does not upset traditional lines of federal-state authority.
Date: April 30, 2012
Creator: Davies, Lincoln; Uchitel, Kirsten; Ruple, John & Tanana, Heather
Object Type: Report
System: The UNT Digital Library
Impact of Contaminants Present in Coal-Biomass Derived Synthesis Gas on Water-gas Shift and Fischer-Tropsch Synthesis Catalysts (open access)

Impact of Contaminants Present in Coal-Biomass Derived Synthesis Gas on Water-gas Shift and Fischer-Tropsch Synthesis Catalysts

Co-gasification of biomass and coal in large-scale, Integrated Gasification Combined Cycle (IGCC) plants increases the efficiency and reduces the environmental impact of making synthesis gas ("syngas") that can be used in Coal-Biomass-to-Liquids (CBTL) processes for producing transportation fuels. However, the water-gas shift (WGS) and Fischer-Tropsch synthesis (FTS) catalysts used in these processes may be poisoned by multiple contaminants found in coal-biomass derived syngas; sulfur species, trace toxic metals, halides, nitrogen species, the vapors of alkali metals and their salts (e.g., KCl and NaCl), ammonia, and phosphorous. Thus, it is essential to develop a fundamental understanding of poisoning/inhibition mechanisms before investing in the development of any costly mitigation technologies. We therefore investigated the impact of potential contaminants (H{sub 2}S, NH{sub 3}, HCN, AsH{sub 3}, PH{sub 3}, HCl, NaCl, KCl, AS{sub 3}, NH{sub 4}NO{sub 3}, NH{sub 4}OH, KNO{sub 3}, HBr, HF, and HNO{sub 3}) on the performance and lifetime of commercially available and generic (prepared in-house) WGS and FT catalysts; ferrochrome-based high-temperature WGS catalyst (HT-WGS, Shiftmax 120™, Süd-Chemie), low-temperature Cu/ZnO-based WGS catalyst (LT-WGS, Shiftmax 230™, Süd-Chemie), and iron- and cobalt-based Fischer-Trospch synthesis catalysts (Fe-FT & Co-FT, UK-CAER). In this project, TDA Research, Inc. collaborated with a team at the University of Kentucky …
Date: September 30, 2012
Creator: Alptekin, Gokhan
Object Type: Report
System: The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 92, No. 64, Ed. 1 Friday, March 30, 2012 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 92, No. 64, Ed. 1 Friday, March 30, 2012

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: March 30, 2012
Creator: Yanelli, Adam
Object Type: Newspaper
System: The Portal to Texas History
Mineral Wells Index (Mineral Wells, Tex.), Vol. 113, No. 105, Ed. 1 Sunday, September 30, 2012 (open access)

Mineral Wells Index (Mineral Wells, Tex.), Vol. 113, No. 105, Ed. 1 Sunday, September 30, 2012

Dailly newspaper from Mineral Wells, Texas that includes local, state and national news along with advertising.
Date: September 30, 2012
Creator: May, David
Object Type: Newspaper
System: The Portal to Texas History
Impact Of Melter Internal Design On Off-Gas Flammability (open access)

Impact Of Melter Internal Design On Off-Gas Flammability

The purpose of this study was to: (1) identify the more dominant design parameters that can serve as the quantitative measure of how prototypic a given melter is, (2) run the existing DWPF models to simulate the data collected using both DWPF and non-DWPF melter configurations, (3) confirm the validity of the selected design parameters by determining if the agreement between the model predictions and data is reasonably good in light of the design and operating conditions employed in each data set, and (4) run Computational Fluid Dynamics (CFD) simulations to gain new insights into how fluid mixing is affected by the configuration of melter internals and to further apply the new insights to explaining, for example, why the agreement is not good.
Date: May 30, 2012
Creator: Choi, A. S. & Lee, S. Y.
Object Type: Report
System: The UNT Digital Library
Wharton Journal-Spectator (Wharton, Tex.), Vol. 123, No. 52, Ed. 1 Saturday, June 30, 2012 (open access)

Wharton Journal-Spectator (Wharton, Tex.), Vol. 123, No. 52, Ed. 1 Saturday, June 30, 2012

Semi-weekly newspaper from Wharton, Texas that includes local, state and national news along with advertising.
Date: June 30, 2012
Creator: Wallace, Bill
Object Type: Newspaper
System: The Portal to Texas History
Polk County Enterprise (Livingston, Tex.), Vol. 130, No. 100, Ed. 1 Sunday, December 30, 2012 (open access)

Polk County Enterprise (Livingston, Tex.), Vol. 130, No. 100, Ed. 1 Sunday, December 30, 2012

Semi-weekly newspaper from Livingston, Texas that includes local, state and national news along with advertising.
Date: December 30, 2012
Creator: Reddell, Valerie
Object Type: Newspaper
System: The Portal to Texas History
The Monitor (Mabank, Tex.), Vol. 39, No. 5, Ed. 1 Thursday, August 30, 2012 (open access)

The Monitor (Mabank, Tex.), Vol. 39, No. 5, Ed. 1 Thursday, August 30, 2012

Semi-weekly newspaper from Mabank, Texas that includes local Cedar Creek Lake area, state and national news along with extensive advertising.
Date: August 30, 2012
Creator: Cantrell, Pearl
Object Type: Newspaper
System: The Portal to Texas History
The Greensheet (Austin, Tex.), Vol. 35, No. 39, Ed. 1 Tuesday, October 30, 2012 (open access)

The Greensheet (Austin, Tex.), Vol. 35, No. 39, Ed. 1 Tuesday, October 30, 2012

Free weekly newspaper that includes business and classified advertising.
Date: October 30, 2012
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Design Concepts for Co-Production of Power, Fuels & Chemicals Via Coal/Biomass Mixtures (open access)

Design Concepts for Co-Production of Power, Fuels & Chemicals Via Coal/Biomass Mixtures

The overall goal of the program is to develop design concepts, incorporating advanced technologies in areas such as oxygen production, feed systems, gas cleanup, component separations and gas turbines, for integrated and economically viable coal and biomass fed gasification facilities equipped with carbon capture and storage for the following scenarios: (i) coproduction of power along with hydrogen, (ii) coproduction of power along with fuels, (iii) coproduction of power along with petrochemicals, and (iv) coproduction of power along with agricultural chemicals. To achieve this goal, specifically the following objectives are met in this proposed project: (i) identify advanced technology options and innovative preliminary design concepts that synergistically integrate plant subsections, (ii) develop steady state system simulations to predict plant efficiency and environmental signature, (iii) develop plant cost estimates by capacity factoring major subsystems or by major equipment items where required, and then capital, operating and maintenance cost estimates, and (iv) perform techno- economic analyses for the above described coproduction facilities. Thermal efficiencies for the electricity only cases with 90% carbon capture are 38.26% and 36.76% (HHV basis) with the bituminous and the lignite feedstocks respectively. For the coproduction cases (where 50% of the energy exported is in the form of electricity), …
Date: September 30, 2012
Creator: Rao, A. D.; Chen, Q. & Samuelsen, G. S.
Object Type: Report
System: The UNT Digital Library