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1,747 Matching Results
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Upgrade Boilers with Energy-Efficient Burners; Industrial Technologies Program (ITP) Steam Tip Sheet No.24 (Fact Sheet)
These tip sheets provide steam system optimization information that can be implemented immediately in manufacturing facilities to achieve more energy-efficient processes.
Date:
April 1, 2004
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
Upgrading Methane Using Ultra-Fast Thermal Swing Adsorption Quarterly Report: January-March 2004
None
Date:
April 1, 2004
Creator:
Tonkovich, Anna Lee
Object Type:
Report
System:
The UNT Digital Library
USE OF COAL DRYING TO REDUCE WATER CONSUMED IN PULVERIZED COAL POWER PLANTS
This is the fifth Quarterly Report for this project. The background and technical justification for the project are described, including potential benefits of reducing fuel moisture, prior to firing in a pulverized coal boiler. A theoretical model, for computing the effects of dryer design and operating conditions on performance of a continuous flow fluidized bed dryer, operating at steady state conditions, is described. Numerical results from the model, compared to data from a pilot scale lignite dryer located at Great River Energy's Coal Creek Station, show good agreement. The dryer model was used to perform parametric calculations on the effects of dryer design and operating conditions on dryer performance and required in-bed heat transfer. Other analyses show the first order effects of firing lignite and PRB coals, dried to various moisture levels, on flow rates of coal, combustion air and flue gas, fan and mill power and unit heat rate.
Date:
April 1, 2004
Creator:
Levy, Edward K.; Sarunac, Nenad; Feng, Gu & Zhang, Wei
Object Type:
Report
System:
The UNT Digital Library
USING RECENT ADVANCES IN 2D SEISMIC TECHNOLOGY AND SURFACE GEOCHEMISTRY TO ECONOMICALLY REDEVELOP A SHALLOW SHELF CARBONATE RESERVOIR: VERNON FIELD, ISABELLA COUNTRY, MI
The principal objective of this demonstration project is to test surface geochemical techniques for detecting trace amounts of light hydrocarbons in pore gases as a means of reducing risk in hydrocarbon exploration and production. A major part of the remaining project will focus on using surface geochemistry to delineate prospects. A Niagaran reef field geochemical survey, the Bagley Prospect area in Otsego County, Michigan is scheduled to take place this summer. Previous wells drilled in Bagley Prospect area in the early 1970's and in place in late 2002 and early 2003 resulted in discoveries and numerous hydrocarbon shows in the Brown Niagaran reservoir interval. The Bagley region is still considered an area of interest by the industry and appears ripe for a geochemical survey. Our industry partner is interested in a possible test in the Bagley prospect because subsurface geophysical and geological interpretation indicates the presence of structures. Anomalous production and pressure data further suggest the region is not yet well understood and should not be considered mature. The most recent well, the Bagley 1-22A sidetrack, was unsuccessful at locating a new reef culmination to the south of the original vertical well and did not encounter hydrocarbon shows. The sidetrack …
Date:
April 1, 2004
Creator:
Wood, James R.; Wylie, A. & Quinlan, W.
Object Type:
Report
System:
The UNT Digital Library
USING RECENT ADVANCES IN 2D SEISMIC TECHNOLOGY AND SURFACE GEOCHEMISTRY TO ECONOMICALLY REDEVELOP A SHALLOW SHELF CARBONATE RESERVOIR: VERNON FIELD, ISABELLA COUNTY, MI
One of the main objectives of this demonstration project is to test surface geochemical techniques for detecting trace amounts of light hydrocarbons in pore gases as a means of reducing risk in hydrocarbon exploration and production. As part of the project, several field demonstrations were undertaken to assess the validity and usefulness of the microbial surface geochemical technique. The important observations from each of these field demonstrations are briefly reviewed in this annual report. These demonstrations have been successful in identifying the presence or lack of hydrocarbons in the subsurface and can be summarized as follows: (1) The surface geochemistry data showed a fair-to-good microbial anomaly that may indicate the presence of a fault or stratigraphic facies change across the drilling path of the State Springdale & O'Driscoll No.16-16 horizontal demonstration well in Manistee County, Michigan. The well was put on production in December 2003. To date, the well is flowing nearly 100 barrels of liquid hydrocarbons per day plus gas, which is a good well in Michigan. Reserves have not been established yet. Two successful follow-up horizontal wells have also been drilled in the Springdale area. Additional geochemistry data will be collected in the Springdale area in 2004. (2) …
Date:
April 1, 2004
Creator:
Wood, James R.; Wylie, A. & Quinlan, W.
Object Type:
Report
System:
The UNT Digital Library
Las Vegas Serves up Biodiesel for Local Schools
This 2-page Clean Cities fact sheet describes the use of biodiesel as a fuel source in buses by the Clark County School District, located in Las Vegas, NV. It includes information on the history of the program, along with contact information for the local Clean Cities Coordinator and Clark County School District.
Date:
April 1, 2004
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
Visualization of higher order finite elements.
Finite element meshes are used to approximate the solution to some differential equation when no exact solution exists. A finite element mesh consists of many small (but finite, not infinitesimal or differential) regions of space that partition the problem domain, {Omega}. Each region, or element, or cell has an associated polynomial map, {Phi}, that converts the coordinates of any point, x = ( x y z ), in the element into another value, f(x), that is an approximate solution to the differential equation, as in Figure 1(a). This representation works quite well for axis-aligned regions of space, but when there are curved boundaries on the problem domain, {Omega}, it becomes algorithmically much more difficult to define {Phi} in terms of x. Rather, we define an archetypal element in a new coordinate space, r = ( r s t ), which has a simple, axis-aligned boundary (see Figure 1(b)) and place two maps onto our archetypal element:
Date:
April 1, 2004
Creator:
Thompson, David C.; Pebay, Philippe Pierre; Crawford, Richard H. & Khardekar, Rahul Vinay
Object Type:
Report
System:
The UNT Digital Library
Warren Spahn Statue
Photograph of the Warren Spahn statue, at the Bricktown Ballpark.
Date:
April 2004
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Warren Spahn Statue
Photograph of the Warren Spahn statue, at the Bricktown Ballpark.
Date:
April 2004
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Warren Spahn Statue
Photograph of the Warren Spahn statue, at the Bricktown Ballpark.
Date:
April 2004
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Warren Spahn Statue
Photograph of the Warren Spahn statue, at the Bricktown Ballpark.
Date:
April 2004
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Warren Spahn Statue
Photograph of the Warren Spahn statue, at the Bricktown Ballpark.
Date:
April 2004
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Warren Spahn Statue
Photograph of the Warren Spahn statue, at the Bricktown Ballpark.
Date:
April 2004
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Warren Spahn Statue
Photograph of the Warren Spahn statue, at the Bricktown Ballpark.
Date:
April 2004
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
WB/GEF Renewable Energy Development Project: Renewable Energy in China
Fact sheet describes China's Renewable Energy Development Project to supply electricity to rural households and institutions with wind energy and solar power (photovoltaics). World Bank and Global Environmental Facility fund the project.
Date:
April 1, 2004
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
The White House - National Commission of the Terrorist Attacks on the United States.
Official statement by Condoleezza Rice delivered to the National Commission on Terrorist Attacks upon the United States .
Date:
April 2004
Creator:
United States. Office of the White House Press Secretary.
Object Type:
Text
System:
The UNT Digital Library
WindPACT Rotor Design Study: Hybrid Tower Design; Period of Performance: 29 June 2000 -- 28 February 2004
The cost of a wind turbine tower can represent as much as 20% of the cost of an entire megawatt-scale horizontal axis wind turbine (HAWT) and as much as 10% of the total cost of energy. The tower is a major cost component, and its design is important: Its structural properties are key to the response of the rotor; its height determines the wind regime that the rotor experiences; it allows access to the turbine nacelle and rotor; and it houses components of the electrical connection and the control and protection systems. Most large wind turbines installed in the United States use self-supporting steel tubular towers. The diameter of these tubes is limited by the size that can be transported by road (approximately 4.3 m). The base dimensions of a truss tower are not restrained by this limit, but trusses may require more maintenance. Guyed tube towers have been used, but they represent additional foundation costs and inconvenience. Addressing these limitations may lead to an alternative that avoids the problems. For this reason, the WindPACT Rotor Design Study was modified to include a study of a hybrid tower to determine the technical and economic feasibility of such a design.
Date:
April 1, 2004
Creator:
Malcolm, D. J.
Object Type:
Report
System:
The UNT Digital Library
The Wynnewood Gazette (Wynnewood, Okla.), Vol. 102, No. 1, Ed. 1 Thursday, April 1, 2004
Weekly newspaper from Wynnewood, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 1, 2004
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
X-Ray Line Measurements with High Efficiency Bragg Crystals
We have studied the focusing properties of two highly oriented pyrolitic graphite (HOPG) spectrometers, which differ in the degree of the mosaic spread: ZYA with a low mosaic spread ({gamma}=0.4 degrees) and ZYH with a large mosaic spread ({gamma}=3.5 degrees). In order to assess the crystal performance for a variety of different experiments, various K{alpha} and K{beta} x-ray lines have been produced using a high-intensity ({approx}>10{sup 17} W/cm{sup 2}) short-pulse ({approx} 100 fs) laser beam focused onto Ti, V, Zn, and Cu foils. The measured spectral resolution of the HOPG crystals in both first and second order diffraction has been compared with theoretical predictions. Using known values for the peak reflectivity of HOPG crystals, we have also computed K{alpha} x-ray conversion efficiencies of Ti, V, Zn, and Cu. These results are important to estimate the optimal conditions under which different types of HOPG monochromators can be used for the detection of weak x-ray signals as the one encountered in x-ray Thomson/Compton scattering experiments.
Date:
April 1, 2004
Creator:
Pak, A; Gregori, G; Knight, J; Campbell, K; Landen, O & Glenzer, S
Object Type:
Article
System:
The UNT Digital Library