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Cola Gas Powers Rockets: China's Bold New Launch Tech
5 Jul
Summary
- Supercritical CO₂ offers a novel approach to rocket propulsion.
- Cold launches eliminate destructive heat from launch pads.
- This technology could significantly reduce launch costs and increase frequency.
Chinese aerospace startup Z-Trak Space is exploring an innovative launch system that harnesses supercritical carbon dioxide (CO₂), famously used in beverages. This novel approach aims to reduce the expensive infrastructure typically required for rocket launches.
The proposed technology employs a 'cold launch' method. Rockets are ejected using rapidly expanding, high-pressure CO₂ gas, with engines igniting only after the vehicle has safely ascended. This contrasts with conventional 'hot launches' where engines ignite on the launch pad, subjecting it to temperatures exceeding 3,000°C.
By avoiding direct exposure to scorching exhaust, this cold launch system bypasses the need for extensive protective measures and frequent repairs common with traditional launch facilities. Z-Trak Space believes this will lead to substantial cost reductions and allow for more frequent launch operations.
The initiative, a collaboration including Hunan-based Zhiyu Aerospace Technology and Chiyang Space Power Technology Company, could fundamentally alter the model for small liquid-fuel launch vehicles. Beyond cost savings, the use of non-toxic CO₂ also offers environmental benefits by avoiding harmful ground-level emissions.
