Effects of the Corona Wind on the Cooling of a Horizontal Cylinder
Abstract
This thesis describes experiments conducted to determine the effect of the corona wind in the convective heat transfer from a horizontally mounted, heated aluminum cylinder. The cylinder was maintained at ground potential with respect to a positive high voltage emitter. Three types of emitter were used in the testing to create the corona wind: two stretched wires, 0.004 in and 0.0125 in diameter and a 19 point emitter. Tests in the free convection conditions and with the emitters at various distances and field voltages up to 15kV were performed to establish a baseline. Emitters with and without a metallic mesh grid and a two dimensional wooden shroud were tested in various configurations over a range of electrostatic field conditions. In addition, the velocity of the corona wind in certain configurations were measured and a blown air system were used to simulate the corona wind with uncharged air to compare their respective effects on the convective heat transfer from the cylinder. Additional keywords: electrostatic cooling; electric cooling; test equipment; computations; computer applications.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1984
- Accession Number
- ADA153101
Entities
People
- L. E. Hogue
Organizations
- Air Force Institute of Technology