# Andreï at the 21st International Stirling Engine Conference | Airthium (YC S17)

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- Published at: 2026-09-30 02:42:35 UTC
- Updated at: 2026-09-30 19:04:43 UTC

## Author
Franck Lahaye

## Subject
Airthium (YC S17)

## Content
Last month, Andreï attended and represented Airthium at the 21st International Stirling Engine Conference (ISEC) held in Pau, France.As one of the conference sponsors, Airthium was proud to stand alongside leading researchers, academics, and energy industry pioneers from around the globe who are pushing the boundaries of modern thermodynamic systems.Why this matters for Airthium:The Stirling cycle is the beating heart of our core technology. While traditional Stirling engines have historically faced trade-offs between efficiency, cost, and complexity, Airthium is reinventing the cycle with our proprietary, fast, near-isothermal compression and expansion.Being at ISEC gave us the opportunity to: Connect with the world’s top thermodynamicists & engineers: Exchanging insights on high-temperature materials, seal mechanics, and thermal fluid dynamics. Validate our technology approach: Presenting and discussing our unique architecture directly with the leading experts in Stirling engine design. Deepen industry ties: Connecting with major energy players (including partners like TotalEnergies and UPPA) who see advanced thermal engines as indispensable for industrial heat decarbonization and clean energy storage. Decarbonizing industrial heat requires bold, foundational thermodynamic breakthroughs. Events like ISEC reinforce just how timely and transformative Airthium's mission is.Thank you to all our investors and supporters who make this progress possible. Stay tuned for more technical and testing updates soon!The Airthium Team