🧊 Deep Seed Vault: Wall Heat Leak, Cooling Power and Warm-Up (2D)

Cross-section of an insulated cold tunnel cut into warm deep rock, with the heat that leaks through the walls, the refrigeration power needed to hold the storage temperature and the warm-up after the plant stops. Set the tunnel size, insulation, rock, depth, temperatures, internal heat, refrigerator quality and stored mass, and see the cooling load, the electric power and how many days the contents stay safe. Radial heat conduction, warm-up, hold time and the second law are checked numerically, with four in-page numerical checks.

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install