The surfaces of rocket engines are exposed to high pressure combustion products at temperatures up to 6000?F. Regenerative cooling can cause coke to form on the heat exchanger surfaces.
Membrane for CO2 and H2O Control in Space Suits
The development of new, robust, lightweight life support systems is currently a crucial need for NASA in order to continue making advances in space exploration, particularly in the development of Lunar outposts.
A Supported Liquid Membrane System for Steady State CO2 Control in a Spacecraft Cabin
Reducing the allowable concentration of carbon dioxide (CO2) in spacecraft is a critical need for NASA.