The challenge was to design a compact cleaning solution that will enable astronauts on the moon and other planets to prevent interior equipment from dust and other contaminators. On Earth, gravity helps greatly for the fall of dust towards the ground. In space and in low-gravity, that is not the case. Dust needs to be removed off the astronauts with other approaches. We decided to base our research around the Clean room concept. the Clean room concept is a design principle of a room that has at maximum a certain amount of dist particles in it, smaller that a micron. In particular, a class 100 clean room was designed as a lunar module. Typically in such scenario there is a clean air flowing into such a room. Since there is no air in space, it needs to be brought in a container and constantly circulated and filtered. The room itself needs to be pressurized, i.e. the incoming amount of air needs to be greater than the outgoing air. The airflow itself needs to be lateral to avoid turbulence and sporadic dust flow. The compressed air is pumped from the ceiling of the cleanroom and passes through several ULPA filters. There are dust vents on the ground that suck the air along with the dust particles. Our research revealed that the lunar dust has high concentrations of metal oxides in it thus making it magnetic. Adding electro-magnets on the floor will facilitate dust movement off the astronauts and towards the ground and dust collectors. Single-Chip CMOS Capacitive Sensor will be used for counting the concentration of dust particles in the cleanroom, and can signal when the concentration of dust particles is below a certain threshold. The lunar module may be powered by solar panels. In addition, the walls of the cleanroom modul can be coated with an anti-static coating to prevent dust sticking on the walls.
List of resources used:
https://www.cedengineering.com/userfiles/HVAC%20Design%20for%20Cleanroom%20Facilities.pdf
http://sprg.ssl.berkeley.edu/adminstuff/webpubs/2007_workshop_181.pdf
https://www.lpi.usra.edu/publications/books/lunar_sourcebook/pdf/LunarSourceBook.pdf
https://www.youtube.com/watch?v=IPM8OR6W6WE
https://link.springer.com/chapter/10.1007/978-3-319-55077-0_2
https://er.jsc.nasa.gov/seh/suitnasa.html
https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20140011751.pdf
https://isru.nasa.gov/MetalsfromRegolith.html