High-Temperature Heat Pipes
ACT (Advanced Cooling Technologies)
Alkali metal heat pipes operating from 400°C to 1,100°C using potassium, NaK, or sodium in stainless steel or Haynes envelopes for nuclear space power, solar thermal, and hypersonic applications.
Technical specifications
- Potassium Operating Range
- 400–1,000°C
- NaK Operating Range
- 500–800°C
- Sodium Operating Range
- 500–1,100°C
- Envelope Materials
- Stainless Steel, Inconel Alloy 600, Haynes
- IFL Temperature Uniformity
- ±0.1°C
- HPBC Temperature Uniformity
- 0.05–0.1°C
- PCHP Set Point Stability
- ±0.01°C
- Quality Certification
- AS9100, ISO 9001
About
ACT’s High-Temperature Heat Pipes use alkali metal working fluids — potassium, NaK alloy, and sodium — to operate across the 400°C to 1,100°C temperature range, far beyond conventional copper-water or aluminum-ammonia devices. These heat pipes use superalloy envelope materials including stainless steel, Inconel Alloy 600, and Haynes.
ACT collaborated with NASA on the Kilopower space fission power project beginning in 2015, developing alkali metal heat pipes to support small fission reactors for space transportation and surface power. Derived product lines include Isothermal Furnace Liners (±0.1°C uniformity), Heat Pipe Blackbody Cavities (0.05–0.1°C uniformity), and Pressure Controlled Heat Pipe furnaces (±0.01°C stability). Space applications include nuclear reactor heat transport, solar thermal receivers, and thermoelectric generator heat sources.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.
