Cooling of Cryogenic Liquids by Gas Injection
Subcooling of cryogenic liquids by injection of a noncondensing gas was investigated as a means of preventing excess heating of the liquid oxygen In the suction lines of the Saturn booster during prelaunch. Because of ambient heating, the liquid oxygen at the pump inlet approaches the saturation state, precluding successful bootstrapping of the H-1 engine during start.
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