Abstract

SUPELANO GARCIA, Iván; SARMIENTO SANTOS, Armando  and  PARRA VARGAS, Carlos Arturo. Applying anormal glow discharge as a caloric source. Ciencia en Desarrollo [online]. 2017, vol.8, n.2, pp.25-29. ISSN 0121-7488.

Plasma technology is a science that is in a constant evolution from its beginnings, from applications from materials treatment until environmental applications. Particularly the glow discharge plasma offers a wide variety of uses, including plasma-chemical applications and thermo-chemical materials treatment. In the present work seeks to exploit the heat generation by the low pressure glow discharge, which is due to kinetic energy transfer from the plasma toward the electrodes. For this purpose a cylindrical reactor that generates a low-pressure glow discharge in gas argon was designed. The discharge cathode constitutes the internal electrode, while the anode, which also constitutes the chamber wall, is a metallic cylinder concentric to the cathode. To sustain the glow discharge a source of pulsed direct current is used and the discharge was generated at several currents in different gas atmospheres (N2, H2 y Ar). Through electrical measurements of the discharge parameters, power and energy consumption of the reactor is determined. These are compared with the values obtained for a commercial heating device based on electrical resistance.

Keywords : Glow discharge; cathode temperature; heat transferring.

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