Sublimation
Sublimation is the process of transition of a substance from solid phase directly to the gas phase without passing through the intermediate liquid phase. In space and astronautical engineering, sublimation is an important phenomenon that occurs in various applications such as thermal control systems, propulsion systems, and life support systems. For example, in thermal control systems, sublimation is used to remove excess heat from spacecraft by sublimating a solid material, such as dry ice or ammonia, into a gas. In propulsion systems, sublimation is used to generate thrust by heating a solid propellant, such as ammonium perchlorate composite propellant, to cause it to sublimate and produce a gas that is expelled out of a nozzle. In life support systems, sublimation is used to purify water by sublimating ice and removing impurities. Sublimation is also an important process in the study of comets, where the sublimation of ice and other volatile compounds produces the coma and tail of the comet.
Your Previous Searches
Random Picks
- Boundaries: In space and astronautical engineering, boundaries refer to the limits or edges of a particular region or system. These boundaries can be physical, such as the boundary between the Earth's atmosphere and outer space, or they can be conceptu ... Read More >>
- Financial Data: Financial data refers to numerical and non-numerical information that is related to financial transactions and activities. In the context of space and astronautical engineering, financial data can include information related to the cost of ... Read More >>
- Carring Capacity: Carrying capacity in space and astronautical engineering refers to the maximum amount of payload that a spacecraft or launch vehicle can carry to a specific orbit or destination. It is determined by various factors such as the size and weig ... Read More >>
Top News
Check out this interactive map of the early universe, considered largest ever cr...
A team of astronomers have put together the largest, most detailed map of the universe ever created – and you can explore it now....
News Source: USA Today on 2025-06-12
The Vera C. Rubin Observatory is about to totally transform astronomy...
With the ability to scan the entire southern night sky every three days, the huge Vera C. Rubin Observatory could be about to start solving the mysteries of the universe, from dark matter to Planet Ni...
News Source: New Scientist on 2025-06-12
Trump's proposed science cuts will have huge consequences...
The universe will still be there to marvel at, despite brutal cuts set to hit NASA and the National Science Foundation's budgets. But the damage to future research will be long-lasting, says Chanda Pr...
News Source: New Scientist on 2025-06-11
Starlink satellites are leaking radio signals that may ruin astronomy...
Our ability to study faint radio signals from when the first stars began to form is being threatened by SpaceX's Starlink satellites, which seem to be unintentionally leaking radio signals that overpo...
News Source: New Scientist on 2025-06-09
Asteroids around Venus pose possible 'invisible threat' to Earth: Should you be ...
A swarm of large asteroids likely lurking around Venus could one day pose an "invisible threat" to Earth if left unchecked, astronomers have warned....
News Source: USA Today on 2025-06-06