Submitted by gumby_the_2nd t3_yb52m4 in space
haruku63 t1_itfhsmp wrote
Reply to comment by the_fungible_man in decompression of liquids in outer space by gumby_the_2nd
The process was used in the Apollo missions to cool the LM and the EVA suits. Water ran through a porous metal block exposed to the vacuum. Water first sublimated, then an ice crust. Turning water into vapor needs a lot of energy, thus the method is very effective.
The method is still used with EVA suits.
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