Heatflow
A thermal management startup developing 3D-printed passive two-phase cooling solutions (thermosiphons) to eliminate energy-intensive fans and pumps in high-power electronics.
- CEO / Founder
- Paw Fallgaard Mortensen
- Team Size
- 1-10
- Stage
- Active
- Total Funding
- $1.9M
- Latest Round
- Grant
- Key Investors
- Innovation Fund Denmark, Danish AM Hub, Energy Cluster Denmark
Technology & Products
Key Products
3D-printed passive two-phase cooling solutions (thermosiphons) for high-power electronics, including a 600W cooling capacity aluminum evaporator for GPUs.
Technological Advantage
Passive 'gravity-driven' operation eliminates moving parts (pumps/fans), significantly increasing system lifespan and reliability while achieving heat transfer coefficients comparable to active liquid cooling.
Differentiation
Value Proposition
Reduces data center energy consumption by replacing active cooling with passive 3D-printed thermosiphons, offering higher reliability, zero-energy operation for the cooling unit, and enabling efficient waste heat reuse.
How They Differentiate
Heatflow utilizes metal additive manufacturing to create passive, gravity-driven thermosiphons that require zero energy (no pumps or fans) to operate, whereas competitors often rely on active liquid cooling or less complex traditional heat exchanger geometries.
Market & Competition
Target Customers
Data center operators, electric vehicle (EV) manufacturers, telecommunications infrastructure providers, and aerospace companies.
Industry Verticals
["Data Centers & High-Performance Computing","Automotive (Electric Vehicles)","Telecommunications","Aerospace & Space","Power Electronics"]
Competitors
Conflux Technology; Submer; Wieland Microcool
Growth & Milestones
Growth Metrics
Transitioned from academic R&D at Aalborg University to industrial pilot phase; participating in EU-wide 'GreenDC' sustainability initiatives.
Major Milestones
["Successful completion of the AM2PC (Additive Manufacturing for Two-Phase Cooling) project in 2022","Selection for the GreenDC project to optimize data center energy efficiency","Validation of 3D-printed thermosiphon prototypes achieving high-performance heat transfer without active power"]
Notable Customers
Danish Technological Institute, Energy Cluster Denmark