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Thermal investigation of an electrical high-current arc with porous gas-cooled anode
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Winter, E. R. F. Schoeck, P. A. Eckert, E. R. G. |
| Copyright Year | 1984 |
| Description | The following guantities were measured on a high-intensity electric arc with tungsten cathode and transpiration-cooled graphite anode burning in argon: electric current and voltage, cooling gas flow rate (argon), surface temperature of the anode and of the anode holder, and temperature profile in three cross-sections of the arc are column. The last mentioned values were obtained from spectroscopic photographs. From the measured quantities, the following values were calculated: the heat flux into the anode surface, the heat loss of the anode by radiation and conduction, and the heat which was regeneratively transported by the cooling gas back into the arc space. Heat balances for the anode were also obtained. The anode losses (which are approximately 80% of the total arc power for free burning arcs) were reduced by transpiration cooling to 20%. The physical processes of the energy transfer from the arc to the anode are discussed qualitatively. |
| File Size | 1958793 |
| Page Count | 27 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19850011935 |
| Archival Resource Key | ark:/13960/t6g20tp68 |
| Language | English |
| Publisher Date | 1984-12-01 |
| Access Restriction | Open |
| Subject Keyword | Electronics And Electrical Engineering Electric Potential Spectroscopy Surface Temperature Spectra Temperature Profiles Heat Measurement Heat Flux Pyrometers Argon Anodes Electric Fields Energy Transfer Electric Current Heat Transfer Electric Arcs Cathodes Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
