Theoretical Design of an Ultra-High Specific Impulse Plasma Arc Propulsion System Utilizing Biological Waste for BCN Alternative Intelligent Manifolds

This paper presents a novel thermodynamic framework for an ultra-high specific impulse plasma arc propulsion system integrated with a boron-carbon-nitrogen (BCN) isoelectronic life form. Traditional aerospace engineering imposes a rigid trade-off between the high thrust of chemical rockets and the high specific impulse of electric propulsion. We circumvent this paradigm by utilizing biological waste streams—specifically aqueous ammonia generated from self-sustaining ecological domes—as direct propellants. By implementing a strict mass-conservation resource allocation function, we mathematically guarantee that essential elements required for replication are safely retained internally, while excess mass is accelerated via high-voltage bio-electric arc discharges within a hexagonal boron nitride (h-BN) chamber. Thermodynamic and stoichiometric formulations prove that the explosion dynamics convert 10 moles of liquid reactant into 17 moles of discrete plasma gas, establishing a low average molecular weight (M ≈ 11.3) via hydrogen cushioning. This yields a specific impulse range of 2,000 to 3,500 s alongside significant high-thrust capabilities, validating the inevitability of autonomous interstellar travel.