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Ethanol Production, Distribution, and Use: Discussions on Key Issues
From production to the environment, presentation discusses issues surrounding ethanol as a transportation fuel.
Date:
May 14, 2008
Creator:
Harrow, G.
System:
The UNT Digital Library
Fuel Cell Bus Evaluation Results
Presentation on the results from the DOE fuel cell bus evaluation given at the Transportation Research Board's 87th annual meeting, January 14, 2008.
Date:
January 14, 2008
Creator:
Eudy, L.
System:
The UNT Digital Library
Air Cooling Technology for Power Electronics Thermal Control
Assessing potential for air cooling in power electronics is a critical factor in power electronics equipment. NREL aims to assess effective air cooling techniques for power electronics technologies.
Date:
November 14, 2007
Creator:
Bharathan, D.
System:
The UNT Digital Library
Why the Time is Right to Deploy Alternative Fuels
Presentation outlines industry trends and statistics that show why now is the time to deploy alternative fuels and vehicles.
Date:
September 14, 2007
Creator:
Harrow, G.
System:
The UNT Digital Library
Experimental Approaches to Predict the Behavior of Liquid Films
None
Date:
October 14, 2005
Creator:
Palmer, D. A.
System:
The UNT Digital Library
YMP Site Activity Update
None
Date:
July 14, 2005
Creator:
Bishop, L.
System:
The UNT Digital Library
Patch Management
None
Date:
May 14, 2004
Creator:
Christensen, Marvin J.; Fournier, K.; Brown, G.; Porter, F.; Kelley, R.; Kilbourne, C. et al.
System:
The UNT Digital Library
Numerical Simulation of Premixed Turbulent Methane Combustion
With adaptive-grid computational methodologies and judicious use of compressible and low Mach number combustion models, we are carrying out three-dimensional, time-dependent direct numerical simulations of a laboratory-scale turbulent premixed methane burner. In the laboratory experiment, turbulence is generated by a grid located in the throat of a 50mm diameter circular nozzle; swirl is be introduced by four tangential air jets spaced uniformly around the circumference of the nozzle just above the turbulence grid. A premixed methane flame is stabilized above the nozzle in the central core region where a velocity deficit is induced7the swirling flow. The time-dependent flow field inside the nozzle, from the turbulence grid and the high-speed jets, to the nozzle exit plane is simulated using an adaptive-grid embedded-boundary compressible Navier-Stokes solver. The compressible calculation then provides time-dependent boundary conditions for an adaptive low Mach number model of the swirl-stabilized premixed flame. The low Mach model incorporates detailed chemical kinetics and species transport using 20 species and 84 reactions. Laboratory diagnostics available for comparisons include characterizations of the flow field just down stream of the nozzle exit plane, and flame surface statistics, such as mean location, wrinkling and crossing frequencies.
Date:
June 14, 2003
Creator:
Day, Marc S.; Bell, John B.; Almgren, Ann S.; Beckner, Vincent E.; Lijewski, Michael J.; Cheng, Robert et al.
System:
The UNT Digital Library