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Evaluation of airborne geophysical surveys for large-scale mapping of contaminated mine pools: draft final report

Description: Decades of underground coal mining has left about 5,000 square miles of abandoned mine workings that are rapidly filling with water. The water quality of mine pools is often poor; environmental regulatory agencies are concerned because water from mine pools could contaminate diminishing surface and groundwater supplies. Mine pools are also a threat to the safety of current mining operations. Conversely, mine pools are a large, untapped water resource that, with treatment, could be used for a va… more
Date: December 28, 2006
Creator: Geosciences Division, National Energy Technology Laboratory, US Department of Energy, Pittsburgh, PA & Hammack, R. W.
Partner: UNT Libraries Government Documents Department
open access

Peaking of world oil production: Impacts, mitigation, & risk management

Description: The peaking of world oil production presents the U.S. and the world with an unprecedented risk management problem. As peaking is approached, liquid fuel prices and price volatility will increase dramatically, and, without timely mitigation, the economic, social, and political costs will be unprecedented. Viable mitigation options exist on both the supply and demand sides, but to have substantial impact, they must be initiated more than a decade in advance of peaking.... The purpose of this anal… more
Date: February 1, 2005
Creator: Hirsch, R.L. (SAIC); Bezdek, Roger (MISI) & Wendling, Robert (MISI)
Partner: UNT Libraries Government Documents Department
open access

Theoretical calculating the thermodynamic properties of solid sorbents for CO{sub 2} capture applications

Description: Since current technologies for capturing CO{sub 2} to fight global climate change are still too energy intensive, there is a critical need for development of new materials that can capture CO{sub 2} reversibly with acceptable energy costs. Accordingly, solid sorbents have been proposed to be used for CO{sub 2} capture applications through a reversible chemical transformation. By combining thermodynamic database mining with first principles density functional theory and phonon lattice dynamics c… more
Date: November 2, 2012
Creator: Duan, Yuhua
Partner: UNT Libraries Government Documents Department
open access

High Temperature Annealing Studies on the Piezoelectric Properties of Thin Aluminum Nitride Films

Description: A Rapid Thermal Annealing (RTA) system was used to anneal sputtered and MOVPE grown Aluminum Nitride (AlN) thin films at temperatures up to 1000°C in ambient and controlled environments. According to Energy Dispersive X-Ray Analysis (EDAX), the films annealed in an ambient environment rapidly oxidize after five minutes at 1000°C. Below 1000°C the films oxidized linearly as a function of annealing temperature which is consistent with what has been reported in literature [1]. Laser Doppler Vibrom… more
Date: May 1, 2008
Creator: Farrell, R.; Pagan, V. R.; Kabulski, A.; Kuchibhatl, Sridhar; Harman, J.; Kasarla, K. R. et al.
Partner: UNT Libraries Government Documents Department
open access

MITAS-2009 Expedition, U.S. Beaufort Shelf and Slope—Lithostratigraphy Data Report

Description: The volume of methane released through the Arctic Ocean to the atmosphere and its potential role in the global climate cycle have increasingly become the focus of studies seeking to understand the source and origin of this methane. In 2009, an international, multi-disciplinary science party aboard the U.S. Coast Guard icebreaker Polar Sea successfully completed a trans-U.S. Beaufort Shelf expedition aimed at understanding the sources and volumes of methane across this region. Following more tha… more
Date: September 17, 2012
Creator: Rose, K.; Johnson, J.E.; Phillips, S.C.; Smith, J.; Reed, A.; Disenhof, C. et al.
Partner: UNT Libraries Government Documents Department
open access

High Temperature, high pressure equation of state density correlations and viscosity correlations

Description: Global increase in oil demand and depleting reserves has derived a need to find new oil resources. To find these untapped reservoirs, oil companies are exploring various remote and harsh locations such as deep waters in Gulf of Mexico, remote arctic regions, unexplored deep deserts, etc. Further, the depth of new oil/gas wells being drilled has increased considerably to tap these new resources. With the increase in the well depth, the bottomhole temperature and pressure are also increasing to e… more
Date: July 31, 2012
Creator: Tapriyal, D.; Enick, R.; McHugh, M.; Gamwo, I. & Morreale, B.
Partner: UNT Libraries Government Documents Department
open access

Thermal Regime of a Cold Air Trap in Central Pennsylvania, USA: the Trough Creek Ice Mine

Description: Air temperatures internal and external to a talus cave (‘ice mine’) in central Pennsylvania were measured hourly for three years. Despite its location near the base of a talus slope, the cave demonstrated the thermal characteristics of an apparently static cave, with limited connections to the external environment other than through the cave entrance. Congelation ice that lasted until late spring formed as drip or flowstone and ponded ice from the limited influx of infiltrating water during lat… more
Date: August 6, 2012
Creator: Edenborn, Harry M.; Sams, James I. & Kite, Steven
Partner: UNT Libraries Government Documents Department
open access

State-of-the-art review of electrochemical noise sensors

Description: There are a number of different techniques capable of being used to measure corrosion within equipment. The most simple, the use of metal coupons, usually causes the process to be shut down, is manpower intensive, and has a time delay in getting the required corrosion information. Electrical Resistance (ER) techniques are often used but their response is very sensitive to temperature and they cannot differentiate between general and localized corrosion. Electrochemical techniques, such as linea… more
Date: September 1, 2001
Creator: Holcomb, Gordon R.; Covino, Bernard S., Jr. & Eden, D. (Intercorr International)
Partner: UNT Libraries Government Documents Department
open access

CO2 SELECTIVE CERAMIC MEMBRANE FOR WATER-GAS SHIFT REACTION WITH CONCOMITANT FOR THE RECOVERY OF CO2

Description: In this quarter we focus on the membrane synthesis via interphase impregnation and slip casting. The slip casting method shows very promising. A well-organized hydrotalcite layer has been deposited on the porous ceramic substrate. Under SEM examination, few defects were recognized. In addition, its particle size in the range of {approx}500{angstrom} is comparable to our existing Al{sub 2}O{sub 3} membrane with 100{angstrom} pore size. This membrane could be qualified for post-treatment with CVD… more
Date: November 15, 2002
Creator: Liu, Paul K.T.
Partner: UNT Libraries Government Documents Department
open access

24-CHANNEL GEOPHONE ARRAY FOR HORIZONTAL OR VERTICAL BOREHOLES

Description: This report describes the technical progress on a project to design and construct a multi-channel geophone array that improves tomographic imaging capabilities in both surface and underground mines. Especially important in the design of the array is sensor placement. One issue related to sensor placement is addressed in this report: the method for clamping the sensor once it is emplaced in the borehole. If the sensors (geophones) are not adequately coupled to the surrounding rock mass, the resu… more
Date: August 1, 2002
Creator: Westman, Erik C.
Partner: UNT Libraries Government Documents Department
open access

Advanced Hydrogen Transport Membranes for Vision 21 Fossil Fuel Plants

Description: Eltron Research Inc. and their team members are developing an environmentally benign, inexpensive, and efficient method for separating hydrogen from gas mixtures produced during industrial processes, such as coal gasification. This project was motivated by the National Energy Technology Laboratory (NETL) Vision 21 initiative which seeks to economically eliminate environmental concerns associated with the use of fossil fuels. This objective is being pursued using dense membranes based in part on… more
Date: July 30, 2002
Creator: Roark, Shane E.; Sammells, Anthony F.; Mackay, Richard A.; Pitzman, Lyrik Y.; Zirbel, Thomas A.; Barton, Thomas F. et al.
Partner: UNT Libraries Government Documents Department
open access

DEVELOPMENT OF A 400 LEVEL 3C CLAMPED DOWNHOLE SEISMIC RECEIVER ARRAY FOR 3D BOREHOLE SEISMIC IMAGING OF GAS RESERVOIRS

Description: Borehole seismology is the highest resolution geophysical imaging technique available to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently frustrated by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data needed … more
Date: September 1, 2002
Creator: Paulsson, Bjorn N.P.
Partner: UNT Libraries Government Documents Department
open access

NOVEL TECHNOLOGIES FOR GASEOUS CONTAMINANTS CONTROL

Description: The overall objective of this project is to develop technologies for cleaning/conditioning the syngas from an integrated gasification combined cycle (IGCC) system to meet the tolerance limits for contaminants such as H{sub 2}S, COS, NH{sub 3}, HCN, HCl, and alkali for fuel cell and chemical production applications. RTI's approach is to develop a modular system that (1) removes reduced sulfur species to sub-ppm levels using a hybrid process consisting of a polymer membrane and a regenerable ZnO-… more
Date: September 30, 2001
Creator: Turk, B. S.; Merkel, T.; Lopez-Ortiz, A.; Gupta, R. P.; Portzer, J. W.; Krishnan, G. N. et al.
Partner: UNT Libraries Government Documents Department
open access

EXPERIMENTAL AND THEORETICAL INVESTIGATIONS OF NEW POWER CYCLES AND ADVANCED FALLING FILM HEAT EXCHANGERS

Description: The final report for the DOE/UNM grant number DE-FG26-98FT40148 discusses the accomplishments of both the theoretical analysis of advanced power cycles and experimental investigation of advanced falling film heat exchangers. This final report also includes the progress report for the third year (period of October 1, 2000 to September 30, 2001). Four new cycles were studied and two cycles were analyzed in detail based on the second law of thermodynamics. The first cycle uses a triple combined cy… more
Date: December 1, 2001
Creator: Razani, Arsalan & Kim, Kwang J.
Partner: UNT Libraries Government Documents Department
open access

A Review of Carbon Dioxide Selective Membranes: A Topical Report

Description: Carbon dioxide selective membranes provide a viable energy-saving alternative for CO2 separation, since membranes do not require any phase transformation. This review examines various CO2 selective membranes for the separation of CO2 and N2, CO2 and CH4, and CO2 and H2 from flue or fuel gas. This review attempts to summarize recent significant advances reported in the literature about various CO2 selective membranes, their stability, the effect of different parameters on the performance of the … more
Date: December 1, 2003
Creator: Shekhawat, Dushyant; Luebke, David R. & Pennline, Henry W.
Partner: UNT Libraries Government Documents Department
open access

INTEGRATED SYSTEM TO CONTROL PRIMARY PM 2.5 FROM ELECTRIC POWER PLANTS

Description: This is the 6th Quarterly Report under this contract. During this period, the Advanced ElectroCore module precharger and its support frame were installed at Alabama Power Company's E.C. Gaston Steam Plant in Wilsonville, Alabama. This represents the vast portion of the installation work. Ductwork and instrumentation needs to installed before the Advanced ElectroCore module can be tested and demonstrated. Also, the Advanced ElectroCore test plan draft has been prepared, and a design arrangement … more
Date: March 1, 2002
Partner: UNT Libraries Government Documents Department
open access

ASSESSMENT OF THE PCFBC-EXPOSED AND ACCELERATED LIFE-TESTED CANDLE FILTERS

Description: Development of the hot gas filtration technology has been the focus of DOE/FETC and Siemens Westinghouse Power Corporation during the past twenty years. Systems development during this time has successfully lead to the generation and implementation of high temperature Siemens Westinghouse particulate filtration systems that are currently installed and are operational at Demonstration Plant sites, and which are ready for installation at commercial plant sites. Concurrently, materials development… more
Date: September 30, 1999
Creator: Alvin, M. A.
Partner: UNT Libraries Government Documents Department
open access

FUELS IN SOIL TEST KIT: FIELD USE OF DIESEL DOG SOIL TEST KITS

Description: Western Research Institute (WRI) has developed a new commercial product ready for technology transfer, the Diesel Dog{reg_sign} Portable Soil Test Kit, for performing analysis of fuel-contaminated soils in the field. The technology consists of a method developed by WRI (U.S. Patents 5,561,065 and 5,976,883) and hardware developed by WRI that allows the method to be performed in the field (patent pending). The method is very simple and does not require the use of highly toxic reagents. The aroma… more
Date: September 30, 2002
Creator: Sorini, Susan S.; Schabron, John F. & Joseph F. Rovani, Jr.
Partner: UNT Libraries Government Documents Department
open access

DETECTION OF UNAUTHORIZED CONSTRUCTION EQUIPMENT IN PIPELINE RIGHT-OF-WAYS

Description: Natural gas transmission companies mark the right-of-way areas where pipelines are buried with warning signs to prevent accidental third-party damage. Nevertheless, pipelines are sometimes damaged by third-party construction equipment. A single incident can be devastating, causing death and millions of dollars of property loss. This damage could be prevented if potentially hazardous construction equipment could be detected and identified before the pipeline was damaged. The Gas Technology Insti… more
Date: January 31, 2002
Creator: Huebler, James E.
Partner: UNT Libraries Government Documents Department
open access

PROOF OF PRINCIPAL TEST TO FEED AND METER GRANULAR COAL INTO 450 psig GAS PRESSURE

Description: The objective of this project is to demonstrate proof of principal to feed and meter granular coal into 450 psig gas pressure for use with pressurized fluidized bed combustors. This report summarizes work undertaken in the first quarter of 2000 in support of that objective. At the end of the last quarter the pump had been re-designed to incorporate a larger torque hub and provide a substantial increase in drive train strength to prevent recurrence of failures experienced during earlier testing.… more
Date: April 1, 2000
Creator: Aldred, Derek L.
Partner: UNT Libraries Government Documents Department
open access

DENSE MEDIA CYCLONE OPTIMIZATION

Description: The fieldwork associated with Task 1 (Baseline Assessment) was completed this quarter. Detailed cyclone inspections completed at all but one plant during maintenance shifts. Analysis of the test samples is also currently underway in Task 4 (Sample Analysis). A Draft Recommendation was prepared for the management at each test site in Task 2 (Circuit Modification). All required procurements were completed. Density tracers were manufactured and tested for quality control purposes. Special sampling… more
Date: September 10, 2001
Creator: Luttrell, Gerald H.
Partner: UNT Libraries Government Documents Department
open access

KINETICS OF DIRECT OXIDATION OF H2S IN COAL GAS TO ELEMENTAL SULFUR

Description: Removal of hydrogen sulfide (H{sub 2}S) from coal gasifier gas and sulfur recovery are key steps in the development of Department of Energy's (DOE's) advanced Vision 21 plants that employ coal and natural gas and produce electric power and clean transportation fuels. These Vision 21 plants will require highly clean coal gas with H{sub 2}S below 1 ppm and negligible amounts of trace contaminants such as hydrogen chloride, ammonia, alkali, heavy metals, and particulate. The conventional method of… more
Date: February 1, 2002
Creator: Kwon, K.C.
Partner: UNT Libraries Government Documents Department
open access

SiC-BASED HYDROGEN SELECTIVE MEMBRANES FOR WATER-GAS-SHIFT REACTION

Description: A hydrogen selective membrane as a membrane reactor (MR) can significantly improve the power generation efficiency with a reduced capital and operating cost for the waster-gas-shift reaction. Existing hydrogen selective ceramic membranes are not suitable for the proposed MR due to their poor hydrothermal stability. In this project we have focused on the development of innovative silicon carbide (SiC) based hydrogen selective membranes, which can potentially overcome this technical barrier. Duri… more
Date: December 1, 2000
Partner: UNT Libraries Government Documents Department
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