| 1.1 | The Limits of Conventional Fabrication
Traditional heat exchangers are built by stamping metal plates, stacking them, and brazing or welding them together. This process is well-established and cost-effective at scale -- but it fundamentally constrains what geometries are possible. Internal flow channels must be simple enough to stamp. Headers and manifolds are separate components, adding joints, weight, and potential leak points.
| 2.1 | What Additive Manufacturing Changes
3D metal printing (additive manufacturing) removes fabrication constraints entirely. Internal flow passages can follow optimized paths that would be impossible to stamp or machine. Surface area density can be maximized within compact volumes. Headers and manifolds can be integrated directly into the heat exchanger body, eliminating joints and reducing overall size.
| 2.2 | Design for Performance, Not for Process
Conventional heat exchanger design starts with "what can we manufacture?" Additive manufacturing flips this question to "what geometry delivers the best performance?" Flow paths can be shaped to minimize pressure drop while maximizing heat transfer surface. Wall thicknesses can vary locally to optimize thermal resistance. The result is heat exchangers that outperform conventional designs in both thermal capacity and energy efficiency.
| 2.3 | Material Flexibility
Additive manufacturing supports a range of metals including aluminum alloys, stainless steel, and nickel superalloys. This enables heat exchangers designed for specific operating environments -- from the moderate temperatures of data center cooling to the aggressive chemistries of geothermal applications.
| 3.1 | Phasic's Position
Phasic Energy leverages additive manufacturing to produce heat exchangers with geometries that conventional fabrication cannot achieve. The result is higher thermal performance, lower pressure drop, and more compact form factors -- purpose-built for applications where every watt of cooling capacity and every Pascal of pressure drop matters.
