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Science and Technology Gaps in Underground Coal Gasification

Description: Underground coal gasification (UCG) is an appropriate technology to economically access the energy resources in deep and/or unmineable coal seams and potentially to extract these reserves through production of synthetic gas (syngas) for power generation, production of synthetic liquid fuels, natural gas, or chemicals. India is a potentially good area for underground coal gasification. India has an estimated amount of about 467 billion British tons (bt) of possible reserves, nearly 66% of which … more
Date: June 27, 2006
Creator: Upadhye, R; Burton, E & Friedmann, J
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Establishing a Secure Data Center with Remote Access: Preprint

Description: Access to existing travel data is critical for many analysis efforts that lack the time or resources to support detailed data collection. High-resolution data sets provide particular value, but also present a challenge for preserving the anonymity of the original survey participants. To address this dilemma of providing data access while preserving privacy, the National Renewable Energy Laboratory and the U.S. Department of Transportation have launched the Transportation Secure Data Center (TSD… more
Date: April 1, 2012
Creator: Gonder, J.; Burton, E. & Murakami, E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

LLNL Capabilities in Underground Coal Gasification

Description: Underground coal gasification (UCG) has received renewed interest as a potential technology for producing hydrogen at a competitive price particularly in Europe and China. The Lawrence Livermore National Laboratory (LLNL) played a leading role in this field and continues to do so. It conducted UCG field tests in the nineteen-seventies and -eighties resulting in a number of publications culminating in a UCG model published in 1989. LLNL successfully employed the ''Controlled Retraction Injection… more
Date: June 7, 2006
Creator: Friedmann, S J; Burton, E & Upadhye, R
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Map Matching and Real World Integrated Sensor Data Warehousing

Description: The inclusion of interlinked temporal and spatial elements within integrated sensor data enables a tremendous degree of flexibility when analyzing multi-component datasets. The presentation illustrates how to warehouse, process, and analyze high-resolution integrated sensor datasets to support complex system analysis at the entity and system levels. The example cases presented utilizes in-vehicle sensor system data to assess vehicle performance, while integrating a map matching algorithm to lin… more
Date: February 1, 2014
Creator: Burton, E.
Item Type: Refine your search to only Presentation
Partner: UNT Libraries Government Documents Department
open access

Free-Spinning Tunnel Investigation of a 1/20-Scale Model of the Douglas X-3 Airplane

Description: Report discussing the spin and spin-recovery characteristics of a model of the Douglas X-3 airplane in a free-spinning tunnel. The pitching-moment characteristics of the scale model were not found to be typical of larger scale results. The results indicated that at an altitude range of 15,000 to 30,000 feet, the X-3 will not exhibit unusual trim tendencies and it will be difficult to obtain erect spins unless the ailerons are full with the spin.
Date: December 26, 1951
Creator: Hultz, Burton E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radionuclide Reaction Chemistry as a Function of Temperature at the Cheshire Site

Description: The goals of this task were to evaluate the availability of published temperature-dependent thermodynamic data for radionuclides and sorbing minerals and to evaluate the applicability of published estimation methods for temperature-dependent aqueous complexation, radionuclide mineral precipitation, and sorption. This task fills a gap in the hydrologic source term (HST) modeling approach, which, with few exceptions, has neglected the effects of temperature on radionuclide aqueous complexation, u… more
Date: October 31, 2005
Creator: Burton, E A; Bruton, C J; Johnson, M R; Rard, J & Zavarin, M
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Silica Scale Management: Lowering Operating Costs through Improved Scale Control, and Adding Value by Extracting Marketable By-Products

Description: We are using laboratory and field experiments to design modeling tools and technology that will improve silica scale management practices in geothermal plants. Our work will help to lower operating costs through improved scale prediction and add new revenue streams from sale of mineral byproducts extracted from geothermal fluids. Improving the economics and effectiveness of scale control programs and/or extraction systems in geothermal operations requires a coupled kinetic-thermodynamic model o… more
Date: June 18, 2003
Creator: Burton, E. A.; Bourcier, W. L.; Wallce, A.; Bruton, C. J. & Leif, R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Contribution of Road Grade to the Energy Use of Modern Automobiles Across Large Datasets of Real-World Drive Cycles: Preprint

Description: Understanding the real-world power demand of modern automobiles is of critical importance to engineers using modeling and simulation to inform the intelligent design of increasingly efficient powertrains. Increased use of global positioning system (GPS) devices has made large scale data collection of vehicle speed (and associated power demand) a reality. While the availability of real-world GPS data has improved the industry's understanding of in-use vehicle power demand, relatively little atte… more
Date: January 1, 2014
Creator: Wood, E.; Burton, E.; Duran, A. & Gonder, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Static longitudinal stability and dynamic characteristics at high angles of attack and at low Reynolds numbers of a model of the X-3 supersonic research airplane

Description: Report presenting an investigation in the 20-foot free-spinning tunnel to determine the motions and trim conditions from 0 to 90 degrees angle of attack for the X-3 airplane, which is a supersonic airplane with an extremely long nose and s mall wing. Testing was conducted on several scales of models and component parts. Results from dynamic and static tests are provided.
Date: February 6, 1951
Creator: Burk, Sanger M., Jr. & Hultz, Burton E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Summary of Spin and Recovery Characteristics of 12 Models of Flying-Wing and Unconventional-Type Airplanes

Description: Report presenting a compilation of free-spinning model results of investigations of the spin and recovery characteristics of 12 flying-wing and unconventional-type designs. Dimensional data, mass data, and three-view drawings of the models that correspond to each of the 12 airplane designs are provided. Results regarding erect spins, inverted spins, and spin-recovery parachutes are also provided.
Date: March 1, 1951
Creator: Stone, Ralph W., Jr. & Hultz, Burton E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Investigation in Simulated Vertical Descent of the Characteristics of a Cargo-Dropping Device having Extensible Rotating Blades

Description: The characteristics of a cargo-dropping device having extensible rotating blades as load-carrying surfaces have been studied in simulated vertical descent in the Langley 20-foot free-spinning tunnel. The investigation included tests to determine the variation in vertical sinking speed with load. A study of the blade characteristics and of the test results indicated a method of dynamically balancing the blades to permit proper functioning of the device.
Date: July 1949
Creator: Stone, Ralph W., Jr. & Hultz, Burton E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fracture Permeability Evolution in Rock from the Desert Peak EGS Site

Description: Fluid flow experiments are being conducted on core specimens of quartz monzonite retrieved from depths of about 1 km at the Desert Peak East EGS site in Churchill County, Nevada. Our immediate goal is to observe permeability evolution in fractures at pressure and temperature conditions appropriate to the Desert Peak geothermal site. Longer term, we aim to evaluate mechanisms that control the evolution of fracture permeability. In the experiments saline water is flowed through an artificial frac… more
Date: April 8, 2004
Creator: Carlson, S. R.; Roberts, J. J.; Detwiler, R. L.; Burton, E. A.; Robertson-Tait, A.; Morris, C. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Using hyperspectral plant signatures for CO2 leak detection during the 2008 ZERT CO2 sequestration field experiment in Bozeman, Montana

Description: Hyperspectral plant signatures can be used as a short-term, as well as long-term (100-yr timescale) monitoring technique to verify that CO2 sequestration fields have not been compromised. An influx of CO2 gas into the soil can stress vegetation, which causes changes in the visible to nearinfrared reflectance spectral signature of the vegetation. For 29 days, beginning on July 9th, 2008, pure carbon dioxide gas was released through a 100-meter long horizontal injection well, at a flow rate of 30… more
Date: November 1, 2009
Creator: Male, E. J.; Pickles, W. L.; Silver, E. A.; Hoffmann, G. D.; Lewicki, J.; Apple, M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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