🧊 Polar Station Heat Balance: Insulation, Wind Chill and Fuel Endurance (2D)

Cross-section of a heated polar habitat with wind and snow outside. Set the outside temperature and wind, insulation thickness, crew, air leakage, thermostat setting and fuel tank, and read the wall U-value, the heat loss, the heater power needed, the wind chill, the fuel use per day and how many days the tank lasts. A finite-difference wall solution and a thermostat run are checked against the formulas, with four in-page numerical checks.