Accession Number : AD0286926

Title :   DESIGN ANALYSIS OF A PARTICLE THERMAL RADIATOR FOR SPACE VEHICLES

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : SMETANA,DUANE WENZEL

Report Date : AUG 1962

Pagination or Media Count : 1

Abstract : The design of a new type of thermal space radiator is extended. Micron-sized particles ar heated and electrically charged on a high potential spherical electrode and ejec ed into space. A second high potential spherical electrode of opposite polarity attracts these particles and changes th polarity of their charge upon contact. The particles then return to the first electrode to complete the cycle. Along their trajectories the particles radiate thermal energy, giving a high area-to-mass ratio because of their small size. Equations are presented which permit calculation of power radiated-to-mass ratios for the entire system. Results of a computer study indicate that at power levels above one megawatt the new type of particle radiator will weigh approximately four to eight percen of the weight of its conventional tube-and-header counterpart. Limitations of the theory are investigated and discussed. (Author)

Descriptors :   *SATELLITES (ARTIFICIAL), DESIGN, HEAT TRANSFER, PARTICLE TRAJECTORIES, PARTICLES, RADIATORS(HEATING AND COOLING), REFLECTION, THEORY

Distribution Statement : APPROVED FOR PUBLIC RELEASE