Notes on engineering high-temperature systems, thermal process development, and building hard-tech products.https://reac.tech/https://reac.tech/blog/energy-density-thermal-storage/https://reac.tech/blog/energy-density-thermal-storage/Thermal storage media beat lithium-ion cells on volumetric energy density and lose badly at the system level. The gap is insulation — and it points at which metric actually matters.Sat, 07 Nov 2026 00:00:00 GMThttps://reac.tech/blog/what-breaks-in-foak-plants/https://reac.tech/blog/what-breaks-in-foak-plants/The models are usually right. The plant breaks anyway — because the design basis is a steady state and the plant is a sequence of transients.Sat, 31 Oct 2026 00:00:00 GMT