Heat exchanger
Krill
Endurance's first hardware in the ocean. In August 2025 the team placed an 80 kW heat exchanger on a live 326 C vent on the Juan de Fuca Ridge, 1,600 meters down, and held it there for 10 days.
It validated efficient heat transfer in the exact environment every later system depends on. Concept to seafloor in months, not years.
2025
Ashes Vent Field at Axial
Seamount, off the Oregon Coast
Specifications
Type
Passive 80 kW thermosiphon heat exchanger with no moving parts
Working fluid
Operating enviroment
326 C vent fluid beside 2 C seawater
Deployment depth
1,600 m (pressure tested to 3,000 m)
Time on the seafloor
