scholarly journals Closure to “Discussion of ‘Effect of Vortices Induced by Corona Discharge on Free-Convection Heat Transfer From a Vertical Plate’” (1969, ASME J. Heat Transfer, 91, p. 432)

1969 ◽  
Vol 91 (3) ◽  
pp. 433-433
Author(s):  
M. E. Franke
Keyword(s):  
Heat Transfer ◽  
Free Convection ◽  
Corona Discharge ◽  
Vertical Plate ◽  
Convection Heat Transfer ◽  
Convection Heat ◽  
Free Convection Heat

Effects of Corona Discharge on Free-Convection Heat Transfer Inside a Vertical Hollow Cylinder

1984 ◽  
Vol 106 (2) ◽  
pp. 346-351 ◽  
Author(s):  
M. E. Franke ◽  
K. E. Hutson
Keyword(s):  
Heat Transfer ◽  
Free Convection ◽  
Corona Discharge ◽  
Heat Transfer Rate ◽  
Hollow Cylinder ◽  
Transfer Rate ◽  
Convection Heat Transfer ◽  
Inside Surface ◽  
Convection Heat ◽  
Free Convection Heat

Vortex rolls induced inside a vertical hollow cylinder are found to increase the free-convection heat transfer rate from the inside surface. The vortex rolls are induced by the corona wind generated between 0.05-mm-dia wire electrodes placed vertically on the inside surface of the vertical hollow cylinder. The increase in heat transfer rate is determined experimentally and is based on the heat input required to maintain the inside surface of the cylinder at constant temperature. The experimental results without corona discharge are compared with an analytical heat balance. A Mach-Zehnder interferometer is used for boundary layer visualization.

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