Abstract

The concept of the electrothermal energetic plasma source (ETEPS) involves an energetic gaseous or liquid propellant injection into a confined non-ablative capillary. As the gaseous injection occurs, an arc discharge causes dissociation of the propellant with immediate ionization and combustion. This results in the release of chemical energy and formation of a highly energetic plasma [1]. The ETEPS concept aims to take the electrothermal-chemical (ETC) source concept and eliminate the combustion chamber by combining the plasma generation and chemical release of energy to form a high enthalpy flow. Previous computational work on the ETEPS concept has been conducted using a propellant mixture of ethanol, benzene, and gasoline for a preliminary analysis on the feasibility of ETEPS use for ETC launch systems.

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