Accession Number:

AD0281819

Title:

FLAME HEATED THERMIONIC CONVERTER RESEARCH

Descriptive Note:

Quarterly rept. no. 3, 1 Jan-31 Mar 1962

Corporate Author:

ATOMICS INTERNATIONAL CANOGA PARK CA

Report Date:

1962-03-31

Pagination or Media Count:

73.0

Abstract:

The 150 We electrically heated diode developed a Cs leak in the seal insulator. However, before the Cs exhausted, some data were obtained defining the necessary operating parameters for a triggered diode power inversion system. Four flame-heated thermionic converters are being constructed. The heater for these converters was tested. An emitter temperature of 1450 C was attained, along with a heat flux of 28 wsq cm. An analysis of possible efficiencies for diode heaters emphasized that heaters employing fuel injection, in combination with high efficiency heat exchanger, must eventually be developed. Testing of Durak-B coating for Mo metal continued. Analysis of results showed that the coating fails due to depletion of Si. Si may evaporate as SiO2 or diffuse into the Mo metal. Flame corrosion tests on SiC refractories showed the superiority of KT SiC.

Subject Categories:

  • Non-electrical Energy Conversion
  • Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE