Published January 27, 2026 | Version v1
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The SCG-HMH Spaceship: A Regenerative, Self-Sustaining Starship Powered by Recycled Entropy and Stellar Heat (conceptual design - not a working prototype)

Description

Imagine a spaceship that doesn’t burn fuel, doesn’t rely on solar panels, and doesn’t need massive propellant tanks — a vessel that “skips along the stars” by chaining gravity assists, recycles every joule of its own waste heat, and turns the heat of a star into thrust and electricity when it flies close. That is the SCG-HMH Spaceship.At the heart of this spherical craft (scalable from 5 m probe to 18 m interplanetary habitat) is the Smart-Cryogenic HTS-MHD Hybrid Generator: a closed-loop engine that uses liquid nitrogen as both coolant and energy carrier. LN₂ absorbs waste heat from the quantum-hybrid AI array, solid-state lithium-metal batteries, and superconducting electromagnets, superheats to 2500–5000 K, expands 1:694 through a radial turbo-expander (mounted on zero-friction YBCO HTS bearings), and drives electrical output via superconducting induction and cold N₂ plasma MHD.The hull itself is the shield: a CNT-reinforced structure lined with YBCO HTS material that expels magnetic fields (Meissner effect), augmented by hexagonal superconducting electromagnets that create a variable mini-magnetosphere (60–240 m radius, inflated by plasma venting). This deflects 50–90% of charged cosmic rays and solar wind, while graphene cathodes enhance plasma conductivity for MHD harvesting. Permanent cryogenic tubes quench all internal heat (AI compute, battery discharge, magnet ramping) back into the LN₂ loop, turning what would be waste into additional expansion force — a living heat pump where entropy is continuously harvested for positive work.Simulations show apparent COP values of 1200–2000× in space (gross output >> parasitic input), surging even higher near stars as external flux becomes “free” superheating. The onboard AI self-regulates demand, heat quenching, and trajectory — optimizing gravity-assist chains for interstellar “skipping” with minimal energy expenditure.This is not fantasy — it’s an extreme extrapolation of proven technologies (NASA cryogenic systems, HTS flux-pinning, mini-magnetosphere concepts, solid-state batteries) woven into a single, regenerative ecosystem. While real-world limits (plasma conductivity, relativistic instability) remain, the SCG-HMH demonstrates what becomes possible when every loss is turned into fuel.
(references cited in paper)

Files

(SCG-HMH) Design Spec-Intergration-Caculations (Current) (2).pdf

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Additional details

Additional titles

Alternative title
Ion Electricity Generator
Alternative title
Super Efficient/Sustainable Generator
Alternative title
Over Unity Generator
Alternative title
Space applications for Energy/Thrust/Life-support
Alternative title
Entropy Generator
Alternative title
Magetosphere