Low Boiloff Transfer Lines

In this proposed effort, GTL has identified two methods for reducing chill-down time. In recent studies it has been shown that the production of super-hydrophilic surfaces can reduce chill-down time by altering the multi-phase boiling at the wall surface. The first method addresses this directly by altering the surface of stainless steel directly. The second method leverages GTL advanced cryogenic composites experience to produce a transfer line that further reduces chill-down time while also reduce the total thermal mass (and mass) of the system. Samples of both methods will be produced, and cryogenic testing will be performed on the samples in the phase I effort. This will provide a strong basis for the phase II effort where LOX and LCH4 testing can occur using existing facilities.