Loop Heat Pipes (LHPs)
ACT (Advanced Cooling Technologies)
High-capacity two-phase heat transport devices that move larger amounts of heat over longer distances than conventional heat pipes, with sintered nickel, hybrid, and 3D-printed wick options.
Technical specifications
- Ammonia Operating Range
- -40°C to 70°C
- Titanium/Water Variant Range
- 70°C to 250°C
- Traditional Wick Pore Radius
- ~1 µm
- 3D-Printed Wick Pore Radius
- ~8–10 µm
- 3D-Printed Wick TRL
- 6
- Quality Certification
- AS9100
About
Loop Heat Pipes (LHPs) overcome the distance and capacity limitations of traditional axially-grooved heat pipes. By separating the liquid and vapor flow paths into a loop configuration, LHPs transport significantly larger heat loads over considerably longer distances with minimal temperature drop.
ACT manufactures all LHP components domestically under strict AS9100 quality controls. Common working fluids include ammonia (-40°C to 70°C), propylene or ethane for lower-temperature applications, and titanium/water variants for 70°C–250°C missions. ACT offers three wick manufacturing approaches: traditional sintered nickel (~1 µm pore radius, TRL 9), hybrid deposition process (TRL 3), and 3D-printed wick (8–10 µm pore radius, TRL 6) for rapid design iteration.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.
