Compensation for Nitrogen Loss in the Atmosphere of a Hermetically Sealed Inhabited Object

The causes of gaseous nitrogen (N 2 ) losses from the atmosphere of an inhabited space station and the methods for restoring the atmospheric composition are reviewed. The desirability of delivering compressed gaseous and solid N 2 to the station is shown. Expressions for calculating the amount of N 2 required for delivery to the space station are given. The refrigeration capacity of compressed and gaseous N 2 for thermostatting electronic devices is estimated.