While Conflux Technology has brought significant attention to the use of metal 3D printing for thermal applications, a closer look at the industry’s history reveals there is an exhaustive list of companies that have long-established expertise in this field.
TEMISTh, a Southern France-based company, has made it its core business. From cryogenic systems (cryogenic to 1000K) to high-pressure environments (up to 1000 bars), the company specializes in extreme-condition applications.
With Eplus3D’s Metal Powder Bed Fusion (MPBF™) technology as part of its production environment, TEMISTh can produce high-performance nickel-based alloy components, such as cold plates as well as lightweight heat exchangers with optimized internal flow channels.
The company combines CFD-driven fluid dynamics and FEA-validated mechanical designs to 3D print heat exchangers.
The DESOLINATION project
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The DESOLINATION project integrates Concentrated Solar Power (CSP) with advanced thermal exchange technology to enhance water desalination.
The core challenge lies in optimizing heat transfer between supercritical CO2 and a highly concentrated desalination solution – a task requiring intricate geometries that only AM can achieve.
Using the EP-M300 metal 3D printer, TEMISTh successfully 3D printed IN718 nickel-alloy heat exchanger cores with a 50μm layer thickness, completing the build in 130 hours of continuous printing. Post-process heat treatment achieved material density exceeding 99.9%, while the modular design allowed welding assembly into large-scale heat exchangers (0.4 x 1.2 x 1.6m³) – surpassing traditional manufacturing size constraints, the team said.
According to a press communication, rigorous testing under DESOLINATION conditions—high temperature, extreme pressure, and corrosive exposure—confirmed structural integrity and performance alignment with operational demands. These results not only validated CFD/FEA simulations but also established critical mass production parameters, demonstrating the feasibility of AM for industrial-scale thermal solutions.
“For over three years, we have partnered with Eplus3D to integrate additive manufacturing into our production. Their teams both in China and Germany have consistently supported our unique requirements, ensuring a seamless installation with expert technical guidance and training-driven optimizations. We especially value their responsive technical team, which helps minimize production downtime. This collaboration has enabled us to fully control our heat exchanger manufacturing, refine design methods, and shorten delivery times,” Jean-Michel HUGO, CEO TEMISTh.
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