There is a good idea along these lines, though. Have an outer shell cooled by dry ice, which takes about 6 times more heat per unit volume than nitrogen to heat from solid to gas at ambient temperature. The dry ice sublimes at −78C.
If you do this, the ΔT that the dry ice sees matters, so building the facility somewhere with a very cold winter temperature makes sense.
There is a good idea along these lines, though. Have an outer shell cooled by dry ice, which takes about 6 times more heat per unit volume than nitrogen to heat from solid to gas at ambient temperature. The dry ice sublimes at −78C.
If you do this, the ΔT that the dry ice sees matters, so building the facility somewhere with a very cold winter temperature makes sense.