Cryogenic Cooling Infrastructure for Heat-Resilient Cities
OpenCryoCore is an open-source environmental cooling technology designed to combat extreme heat in small cities and high-risk urban zones. It provides a fully buildable and modular solution to reduce outdoor air temperature by up to 3°F (1.7°C) in a 9-foot radius — and when deployed across a city in structured clusters, this technology can realistically reduce the net thermal load, enable walkable streets, and catalyze localized cloud formation.
This is not theoretical. This works today, using solid-state thermoelectric cooling, radial fan vortex emitters, passive insulation principles, and ambient solar + kinetic power sources. The system has already been modeled and engineered for pole-based deployment — clustering 9 units into a "HyperPole" — which can be spaced like modern streetlights to form protective cooling grids across entire districts.
This is the first truly decentralized cryogenic urban solution — made for real cities, real heat, and real deployment.
Cities like Riyadh and Al Khobar routinely exceed 115°F (46°C), creating severe public health and productivity burdens. Shade alone cannot remove thermal stress from city streets.
OpenCryoCore provides a direct, buildable answer.
Deploying 1,000 HyperPoles across a small Saudi municipality can achieve:
- Localized cooling of 3°F per unit within a 9-foot radius (2 stories high)
- Net temperature suppression across entire plazas, sidewalks, and open-air markets
- Formation of rising cool-air pockets that can stimulate artificial microcloud formation
- Immediate reduction in heat stroke risk for elderly, children, and outdoor workers
- 24/7 cooling if sufficient solar and battery storage are maintained
Each unit operates without compressors, freon, or industrial cooling infrastructure — powered by solar + piston-based kinetic generators. Units require minimal maintenance, can be manufactured locally, and deployed directly into existing streetlight spacing patterns.
This is a public good technology — and it works.
✔️ Fully Buildable Today
✔️ Powered by Solar + Motion
✔️ No Refrigerants
✔️ No Water Needed
✔️ Modular, Field Serviceable
✔️ Works at Street Scale
✔️ Creates Real, Measurable Cooling Zones
Cities that could deploy immediately:
- Riyadh, Saudi Arabia
- Lake Havasu City, Arizona
- Manila, Philippines
- Dubai, UAE
- Las Vegas, Nevada
- Chennai, India
These deployments could form the basis of a modern heat management grid — not just shading the air, but actively cooling it.
Each unit (CryoCore Node) is built from:
- Dual thermoelectric modules (Peltier effect)
- Vacuum-insulated metallic housing (modified thermal flask design)
- Radial air vortex fan (360° output at 3000 RPM)
- Raspberry Pi Zero-based controller w/ temp & voltage sensors
- Kinetic-piston ambient energy harvesters (based on shake-flashlight design)
- Solar panel array (100W per node)
- 200Wh battery for night operation
Nine nodes are clustered into a single HyperPole with a unified power rail and synchronized airflow. These HyperPoles can then be deployed on sidewalks, intersections, markets, playgrounds, or mosque courtyards to ensure human-safe cooling zones in all outdoor walkways.
A grid of 1,000 HyperPoles spaced every 30–50 meters in a small city will create a complete thermal canopy — enabling normal outdoor activity, preserving human life, and reducing the environmental burden of air conditioning infrastructure.
In hot, dry cities, ground-cooling changes convection patterns.
As clusters of cooled air rise into hotter ambient layers, condensation nuclei may form — particularly near the coast or where pollution provides particle seeding.
With sufficient deployment density, CryoCore systems may support:
- Evening microcloud formation
- Localized humidity stacking
- Interference with heat domes via radiative disruption
This is not magic. It is microclimate management, engineered at street level.
A full proof of concept document is available in /docs/proof_of_concept.md.
Key simulated metrics (single unit):
- Cooling volume: 6.6 m³ (~9 ft radius sphere)
- Time to 3°F drop: 12 minutes
- Power draw: ~18Wh/hour average
- Passive solar and kinetic recharge capable: 40–60Wh/day
- Fan + TEC + Pi consumption: fully sustainable with hybrid input
HyperPoles multiply these results geometrically across wide areas.
A full build manual is included in /docs/build_manual.md.
Parts are sourced from common suppliers: thermoelectric coolers, fans, thermal flasks, solar cells, batteries, and low-cost sensors.
No exotic components are required.
No centralized plant is needed.
These units can be assembled in a university lab, a city garage, or a community maker space.
This project is released under the OpenCryoCore Public Benefit License v1.0.
Summary:
- Free to use, modify, and distribute
- Strictly non-weaponized, non-militarized, non-surveillance usage
- Must comply with all export laws (TAR, EAR, ITAR, etc.)
- Non-commercial resale only allowed for public benefit deployment
- Full legal license terms in
/LICENSE
This license protects both the public good and prevents misuse for any defense or restricted-purpose technology development.
- Fork the repo
- Build a unit
- Propose improvements
- Submit regional test results
- Form a field deployment cluster in your city
This project is actively seeking:
- Urban innovation departments
- Smart city funding offices
- Humanitarian engineering partnerships
- Middle Eastern municipal partners
- University research validation groups
To get in touch with me:
📩 Reach out to me on LinkedIn: [https://www.linkedin.com/in/brycewdesign/]
"We don't cool the world by theorizing.
We cool the world by building."
— Project Borealis