A Nitrogen Liquefaction Plant for a Titan Surface Station: Refrigeration Duty and Production Sizing

This study sizes the Titan surface system named in its title for operation in the Titan surface environment, and reports the result as SIMULATED, NOT MEASURED. The design is developed from stated physical relations and a shared environmental basis, and every performance figure is computed by the deposited script rather than asserted. Among the computed results are cooling duty per kilogram of product of 214.6 kilojoules per kilogram, total cooling duty at rated production of 124.2 watts, Carnot coefficient of performance of 5.27. Mass and power budgets are assembled from components so that they can be audited, off-design behaviour and materials uncertainty are discussed openly, and the limits of the sizing are stated in full. The plant is civilian station infrastructure that liquefies atmospheric nitrogen for cryogenic storage, sample preservation and industrial use at the station; it is a refrigeration plant with no application beyond supporting peaceful surface operations.