Nitrogen flow boiling and chilldown experiments in microgravity using pulse flow and low-thermally conductive coatings.

ABSTRACT: The enabling of in-space cryogenic engines and cryogenic fuel depots for future manned and robotic space exploration missions begins with technology development of advanced cryogenic fluid management systems upstream in the propellant feed system. Before single-phase liquid can flow to the engine or customer spacecraft receiver tank, the connecting transfer line must first be chilled down to cryogenic temperatures. The most direct and simplest method to quench the line is to use the cold propellant itself. When a cryogenic fluid is introduced into a warm transfer system, two-phase flow quenching ensues. While boiling is well known to be a highly efficient mode of heat transfer, previous work has shown this efficiency is lowered in reduced gravity. Due to the projected cost of launching and

SUBMITTER: Hartwig J 

PROVIDER: S-EPMC9363417 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature