首页|Cooling system optimization of cryogenic propellant storage on lunar surface
Cooling system optimization of cryogenic propellant storage on lunar surface
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NSTL
Elsevier
A cooling system using a cryocooler and boil-off gas was proposed for cryogenic propellant storage on the lunar surface。 The cryogenic tank was covered with an advanced non-interlayer-contact multi-layer-insulation and coolant from the cryocooler and boil-off gas flow in the layers to remove the heat load。 The proposed system included optimization factors for fluid tubes location， cryocooler temperature， and flow rate。 A simple uniformtemperature thermal model was developed to optimize boil-off rates and system weights， and the results revealed a Pareto front。 A three-dimensional model was developed to discuss the effect of temperature nonuniformity。 Finally， the proposed concept was compared to other candidates。 The results showed that the proposed system offered a well-balanced system in terms of boil-off rate， system mass， and electric power consumption， which drastically reduced the boil-off rate when compared to only multi-layer insulations， which reduced the weight and power consumptions as compared to zero-boil-off systems。
NSTL
Elsevier
