scholarly journals Office of Inspector General audit report on the US Department of Energy`s large-scale demonstration and deployment projects

1999 ◽  
Author(s):  
Keyword(s):  
Large Scale ◽  
Department Of Energy ◽  
Audit Report ◽  
Inspector General ◽  
The Us

scholarly journals Dust devil vortex generation from convective cells

2015 ◽  
Vol 33 (11) ◽  
pp. 1343-1347 ◽  
Author(s):  
O. Onishchenko ◽  
O. Pokhotelov ◽  
W. Horton ◽  
V. Fedun
Keyword(s):  
Large Scale ◽  
Vortical Structure ◽  
Convective Motion ◽  
Department Of Energy ◽  
Hydrodynamic Theory ◽  
Dust Devil ◽  
Dust Devils ◽  
The Us ◽  
Instability Growth ◽  
Convective Cells

Abstract. We have developed a hydrodynamic theory of the nonlinear stage of dust devil generation in a convectively unstable atmosphere with large-scale seed vertical vorticity. It is shown that convective motion in such an atmosphere transforms into dust devils extremely fast. The strong vortical structure of the dust devils can be formed in a few minutes or even in a fraction of a minute. The formation process strongly depends on the convective instability growth rate and horizontal vorticity. The work is supported by the US Department of Energy under Contract DEFG02-04ER-54742.

The Cold Reality of Power

2001 ◽  
Vol 123 (06) ◽  
pp. 54-57 ◽  
Author(s):  
John R. Hull ◽  
Patrick E. Phelan
Keyword(s):  
Electric Power ◽  
Large Scale ◽  
High Temperature Superconductors ◽  
The United States ◽  
Department Of Energy ◽  
First Year ◽  
Manufacturing Plants ◽  
The Us ◽  
Total Lack ◽  
Power Application

This article highlights large-scale applications of high-temperature superconductors (HTS), based on copper-oxide ceramics, which have begun to occur in the United States. A number of major electric-power application projects have been undertaken as partnerships between the US Department of Energy and various companies. Superconductors are particularly appropriate for electric power applications because of the total lack of resistance in direct current applications and very low losses in alternating current. The low losses allow use of much higher current densities than can be achieved in normal conducting metals, such as copper or aluminum. An HTS transmission line has been operating at the Southwire Co. in Carrollton, GA, since January 5, 2000. Since then, the three 100-foot-long above-ground cables have supplied 1250 A at 12.4 kV to three manufacturing plants at the Southwire headquarters. During its first year of operation, the line supplied more than 5000 hours of operation at 100% load. Southwire’s HTS cables lose only about 0.5% of power during transmission, compared to 5 to 8 percent lost by traditional cables.

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