Accession Number : AD0482513

Title :   THE DEVELOPMENT OF A FOSSIL FUEL FIRED HEAT PIPE FOR USE WITH THERMIONIC ENERGY CONVERTERS.

Descriptive Note : Quarterly technical rept. no. 2, 1 Oct-31 Dec 65,

Corporate Author : RADIO CORP OF AMERICA LANCASTER PA DIRECT ENERGY CONVERSION DEPT

Personal Author(s) : Hall, W. B. ; Kessler, S. W.

Report Date : MAY 1966

Pagination or Media Count : 43

Abstract : Work concerned the most efficient method of coupling a simulated thermionic converter to a heat pipe. The heat pipe incorporates a gas barrier and is used to conduct the heat from a fossil fuel burner to the simulated converter. A theoretical analysis of the operation of the heat pipe will be made and confirmed experimentally. Progress was made on the following tasks: the construction of a sodium heat pipe which operated to 1000 Centigrade; the evaluation of sodium as a working fluid; the evaluation of the wetting characteristics of lead on different capillary structures; the fabrication of vacuum tight ram seals and the development of a high strength alumina body for the barrier. Preliminary evaluations of the permeation characteristics of barrier materials was initiated. (Author)

Descriptors :   (*THERMIONIC CONVERTERS, HEAT TRANSFER), LIQUID METALS, SODIUM, SURFACE ACTIVE SUBSTANCES, LEAD(METAL), CAPILLARY TUBES, HEAT EXCHANGERS, CERAMIC MATERIALS, HEAT RESISTANT MATERIALS, BISMUTH, COMBUSTION, FUELS, PETROLEUM PRODUCTS, ALUMINUM COMPOUNDS, OXIDES, HEAT SHIELDS, TUNGSTEN, MOLYBDENUM.

Subject Categories : Electric Power Production and Distribution
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE