Methane acts much as water does on Earth, it's a condensable greenhouse gas, it's close to the temperature at which it forms a liquid on the surface. |
The planet's deep blue-green atmosphere is thick with hydrogen, helium and methane, Uranus's primary condensable gas. |
If proper vacuum is not achieved at installation the refrigerant system will be contaminated with non condensable air and water vapor which can cause compressor failure. |
In addition, the low temperatures on the Moon's nightside and in permanently shaded polar craters provide cold traps for condensable gases. |
Reactor effluent is introduced to a cold trap to collect condensable products. |
While testing for filterable particulate is a well-established science, the testing methods for condensable particulate are still developing. |