| ▲ | hgoel 2 hours ago | |
I think it's hard to say. Water sprayed at a ceiling doesn't congeal into a ball the way water floating in microgravity does. Paint that would fall to the ground if it didn't stick to anything on Earth, would just be floating around in microgravity. Any dissolved gasses or moisture can usually passively sort themselves out due to their differing masses, but again, not in microgravity. | ||
| ▲ | nomel an hour ago | parent [-] | |
Yeah, the application system is probably the tricky bit, rather than the paint. > Any dissolved gasses or moisture can usually passively sort themselves out due to their differing masses, but again, not in microgravity. This is a solved problem with the ECLSS system [1], required from humans releasing ~3.3 lbs of water per day, and exhaling gases that must not accumulate or form dead zones, and normal VOCs scrubbers [2] due to most modern materials releasing them. I suspect it would be more of a "how many extra filters do we send" type problem and cycling the collected water a couple more times. [1] https://www.sciencedirect.com/science/article/abs/pii/S13640... [2] https://www.researchgate.net/figure/Typical-concentrations-o... | ||