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Experimental and theoretical investigation for the suppression of the plasma arc drop in the thermionic converter
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Shaw, D. T. Chang, T. Manikopoulos, C. N. Lee, C. H. Chiu, N. |
| Copyright Year | 1977 |
| Description | Ion generation and recombination mechanisms in the cesium plasma as they pertain to the advanced mode thermionic energy converter were studied. The decay of highly ionized cesium plasma was studied in the near afterglow to examine the recombination processes. Very low recombination in such a plasma may prove to be of considerable importance in practical converters. The approaches of external cesium generation were vibrationally excited nitrogen as an energy source of ionization of cesium ion, and microwave power as a means of resonant sustenance of the cesium plasma. Experimental data obtained so far show that all three techniques - i.e., the non-LTE high-voltage pulsing, the energy transfer from vibrationally excited diatomic gases, and the external pumping with a microwave resonant cavity - can produce plasmas with their densities significantly higher than the Richardson density. The implication of these findings as related to Lam's theory is discussed. |
| File Size | 2440959 |
| Page Count | 98 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19790011695 |
| Archival Resource Key | ark:/13960/t8sb8w56h |
| Language | English |
| Publisher Date | 1977-12-31 |
| Access Restriction | Open |
| Subject Keyword | Plasma Physics Cesium Ions Plasma Jets Plasma-particle Interactions Thermionic Power Generation Cavity Resonators Resonance Testing Nitrogen Plasma Control Microwave Plasma Probes Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
