THE FLUID TRANSPIRATION ARC AS A RADIATION SOURCE FOR SOLAR SIMULATION.
Semiannual progress rept. 1 Jul-31 Dec 67,
COLUMBIA UNIV NEW YORK ELECTRONICS RESEARCH LABS
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The report is one in a series of progress reports on a project to develop the fluid transpiration arc as a radiation source for solar simulation. Continuing with the colinear opposing flow geometry of the two electrode columns, a complete module has been designed, constructed, assembled and instrumented for operation and for analysis of radiation and energy dissipation. Work was also begun on assembly of spectral irradiance instrumentation. Preliminary testing disclosed two basic problems, requiring effort directed toward auxiliary development. These problems were 1 maintenance of the integrity and porosity of the tungsten porous anodes, specifically to avoid destruction or deterioration of the surface by melting 2 the need for a porous tungsten anode design which would ensure that all of the gas metered to the anode would enter the arc discharge--a requirement which was particularly acute at pressures above atmospheric. Both problems were successfully solved and the results incorporated into the program. Author
- Plasma Physics and Magnetohydrodynamics