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Project: Complete Autonomy Platform for Inhabited Oceanic Island

Brief Description

Floating platform SWAHH (Small Waterplane Area Hex Hull), designed for 15 people, built as a completely autonomous system with closed engineering, biotechnological, energy and economic cycles. Based on reproducibility of all technologies, maximum maintainability and independence from mainland for many years.

Architecture and Construction

  • Geometry: Hexagon (edge 20 m), platform thickness 2 m, honeycomb construction (20% volume filled), load-bearing top layer — 10 cm, bottom — 30 cm. External ring residential zone: 1st floor — 8 m wide, 2nd floor — 4 m. Terraces, cornices, canopies, garden, sports area, pool.
  • Columns: 6 ellipsoidal columns at platform vertices. Each column — large volume OWC chamber, provides buoyancy and stability. Height 12 m, ellipsoidal cross-section (dimensions see platform-construction.md), with dry compartment, shaft, rigid bulkhead. Floats — truncated ellipsoidal cones with hemispherical bottom, provide buoyancy reserve and level waterline.
  • Materials: Foam glass with basalt fiber reinforcement (fiber produced on-site), all large structures — casting only. Modules and molds reusable, part of tooling — foam glass, plastic or metal.
  • Construction: Layer-by-layer structure growth using solar concentrators (40–80 m² mirrors) and mini-furnace; possible assembly on unequipped shore. Mini-shop for repair and production of all elements (see mini-fab.md).

Energy

  • Wave generation (en-OWC): All 6 ellipsoidal columns work as OWC chambers. System produces from 100 to 500 kW at wave peak, base generation — 20–60 kW (see energy-systems.md). Two-chamber valves, double turbine scheme, part of flow to compressor for pneumatic network.
  • Solar concentrators: 80–85 m² mirrors, efficiency ~60%, up to 40–45 kW thermal power (water heating, desalination, tech processes).
  • Solar panels: 5–10 kW (all excess power — to accumulation and water heating).
  • Biogas and biofuel: Generation based on biofarm, energy reserve support.
  • Accumulation: Iron-nickel batteries (up to 1,200 kWh), pneumatic accumulators (up to 300 kWh, 2,000 m³ × 12 atm).
  • Backup and repair: All energy built on reproducible components, load control — automation and pneumatic drives.

Water Supply and Desalination

  • Desalinator: Vacuum cascade distillation, 2–3 m³/day (at 40 m² mirrors), up to 0.5 m³/day rainwater.
  • Reservoirs: At least 50 m³ fresh water reserve.
  • Recirculation: "Gray" water cleaned and goes to irrigation/technical needs. Separate fire network (on seawater), PVC/stainless/brass.
  • Automation: Pneumatic drives and membrane level sensors, emergency systems with floats.

Biosystem and Nutrition

  • Standard: 500 g protein, 500 g vegetables/fruits, 150 g grains/day per person + 20% reserve (see biosystem-food.md).
  • Animals: Guinea pigs (8+), goats (2×4), Vietnamese pigs (2×4), poultry (3 lines), fish (sturgeon, tilapia, etc.), insectarium (en-insects), worms.
  • Plants: Up to 300 m² hydro- and aquaponics (see aquaponic-algae.md, garden.md). Vegetables, greens, tubers, berries (en-everbearing), fruit trees, halophytes around perimeter, tropical and unusual species. Multi-tier, container, vertical plantings, dwarf trees.
  • Microalgae: 1–1.5 m³ photobioreactors (spirulina, chlorella), up to 3.5 tons biomass per year, up to 50% feed for animals and fish.
  • Fungi: On organic remains, additional protein, composites.
  • Cycles: All waste goes to compost, insects, algae or biogas; closed nutrition and fertilizer cycle.

Bioplastics, Materials, Mini-shop

  • Production: Bioplastics (PHB, PHA) from bacteria on waste and algae, fungal composites, cellulose.
  • Products: Disposable containers, packaging, filters, panels, insulation, part of hygiene — all molded on platform.
  • Cycle: All containers and packaging composted or go to biogas.
  • Mini-shop: Workbench, solar concentrator, lathe, mill, pneumatic tools, laboratory — for casting, assembly and equipment repair.

Pneumatic and Hydro-automation

  • Pneumatics: Valves, relays, drives, emergency systems, logic on membranes/jets/springs (see pneumo-automation.md).
  • Hydro-automation: Pumps, irrigation, emergency systems.
  • Backup: Any critical system controlled without electronics, down to manual mode.

Electrochemistry and Electrotechnologies

  • Electrolysis: Seawater — NaOH, Cl₂, NaClO, H₂, O₂ for disinfection, synthesis and fuels.
  • Galvanics: Part coating and repair, metal growing, corrosion protection.
  • Electroorganics: Hydrogen peroxide, biocides, EDM drilling (see electrochemistry.md).
  • Equipment: Electrodes (graphite, iron, copper), PVC reactors, power supplies — on solar/wave energy.

Safety, Emergency Systems, Communications

  • Fire network: Pumps (manual/electric/pneumatic), seawater hydrants, manual and automatic control.
  • Evacuation: 1 × 20-seat lifeboat, 2 × 10–12-seat rafts, emergency kits, protocols and regular drills.
  • Communications: Local network, emergency satellite communications, mechanical and pneumatic signals.
  • Backup: All emergency systems duplicated, priority — manual control (see safety-comm.md).

Household Chemicals and Hygiene

  • Closed cycles: Soap — from fats and NaOH (brine electrolysis). Surfactants — from saponin-containing plants (sapindus, soapwort). Cellulose and paper — from amaranth, moringa, microbial cellulose. Hypochlorite for disinfection — from brine after desalination. Enzymatic and biodegradable detergents, all safe for septic tanks (see hygiene-products.md).
  • Coverage: 2 sapindus + 2 m² soapwort = 100–200% household platform needs.

Economics and Finance

  • Capital costs: ~$250,000 for 15 people (see economics.md), including all engineering, biotechnological systems, starting materials, tools.
  • Reserves: 5–10% capital costs — "black fund" for failures and repair, minimal consumables and starter cultures fund.
  • Operation: Minimal expenses: only repair, electricity, regular diagnostics, consumables replenishment.

Emerging Technologies

  • Synthetic biology: Mini-fermenters, own production of vitamins, amino acids, enzymes, medicines (see emerging-tech.md).
  • Insectariums: Fast protein, waste disposal, backup nutrition line.
  • Fungi, microbial fuel cells: New materials, part of electricity on bacteria and compost.
  • 3D printing: Bioplastic and recycled plastic — for parts, packaging, repair.
  • Electroorganics: Simple chemical production on solar/wave energy.

Final Conclusions

  • Platform — completely reproducible and maintainable system with decades of autonomy.
  • Any block can be isolated or restarted, no "bottlenecks" for power, energy, hygiene, materials.
  • Critical are engineering culture, constant learning, storing all documentation on-site.

Document compiled from latest sources. For any block detail clarification — specify which section needs expanded version.