CHARGES BASED ON METAL POWDERS FOR A CLOSED TYPE THERMOELECTRIC GENERATOR
The possibility of development of charges on the base of powdered metal, magnesium and aluminum, for thermoelectric modules of pulsed closed-type electricity generators is considered. The chemical energy is converted into electricity when the charges are burned in air. The possibility to organize the effective diffusion combustion of large diameter charges in the regime of natural diffusion of an oxidizer is demonstrated. As for magnesium, it involves the use of combustion promoters. It is shown that complete combustion of the charge occurs without any combustion promoter with a special charge design in which the oxidant is supplied to the metal body with natural diffusion through special channels in the body. The excess nitrogen amount that reacts with the PAP-2 aluminum and the mass fraction of nitride in the combustion products have been estimated.