Good question. Not all reactors by design need water as coolant. Some use molten salt, others are gas cooled.
These alternate cooling materials would likely still need to be imported though, so it doesn’t particularly make it any easier.
My main question is the effect of the lower gravity on cooling the reactor (thermal hydraulic effects). All of our current reactors are designed for 1 g use, not 0.1654 g that’s on the moon. Heat mixture rates in fluids would be different, which is important when you’re calculating effective heat dissipation.
Just for fun, go check out xkcd’s new What If video. They go into heat dissipation of a nuclear reactor in space (not the moon, but still incredibly interesting, informative, and entertaining).
How would you cool a nuclear power plant on the moon, no water?
Good question. Not all reactors by design need water as coolant. Some use molten salt, others are gas cooled.
These alternate cooling materials would likely still need to be imported though, so it doesn’t particularly make it any easier.
My main question is the effect of the lower gravity on cooling the reactor (thermal hydraulic effects). All of our current reactors are designed for 1 g use, not 0.1654 g that’s on the moon. Heat mixture rates in fluids would be different, which is important when you’re calculating effective heat dissipation.
Just for fun, go check out xkcd’s new What If video. They go into heat dissipation of a nuclear reactor in space (not the moon, but still incredibly interesting, informative, and entertaining).
deleted by creator
I should have shared, but I’m lazy.
https://www.youtube.com/watch?v=EsUBRd1O2dU
You cool it with liquid thermal transfer and radiators. Here’s what a kilopower plant looks like, the big disk is a radiator.