h a l f b a k e r yIf you need to ask, you can't afford it.
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Annotation:
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BubbaX, you need to copy/paste the text from the lunar housing2, then delete that idea. You can get to it above. Keeping the HB trim is a constant battle, so your help is appreciated. |
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Bubbax, this is not a bad idea. But really, you need to explain more! |
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As a comment, I would use a soalar reflector to concentrate sunlight for the melting of the rock. I would then pile the lunar dust upon your house to a depth of 10-20 ft. with only an airlock sticking out ( this protects from radiation, metoroites ). One of these units could be made quite light but would need a large reflector ( made of mylar to keep weight down ). |
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Melting pot should be of graphite and will need to melt ~1/14 cubic feet per minute ( ~1500 ft.^3 / 20160 minutes ) to make a one story, 1000 ft.^2, 8ft. ceiling, 6in. walls ( and floors ) in 14 days ( lunar daytime period ) |
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To figure out how big of a reflector you'll need you need to know the melting temp. of lunar rock, it's specific heat capacity, it's heat of melting, the average radiation recived on the moon ( if you are using a non-stearable reflector ), how much will be reflected of the melting pot, and how much heat will be lost from the meling pot through radiation.
(longest post to date!) |
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Looks like he's explained the idea on his profile page. |
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Plenty of oxygen in lunar dust, I hear. |
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If we can afford to send up the equipment to melt rock, we can afford to send up equipment to extract air from rock. |
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I sugest, bubbax, that you use a reflector instead of a refractor. This will (I think) decreas the nessecary optical quality.(cheaper, lighter) |
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You're kind of assuming that lunar dust is made up of sand. |
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.... whereas we all know it's made of cheese! |
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Not realy silicon oxide magority as I understand -mabe wrong-, but enough of it melts at 700-1000* Celcius
to make structures. Just to point out a problem with your plan, The air, when injected, will rise to the top, where it will either pop or make the top un-structuraly thin. |
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My meathod has not this problem, and uses less energy as there is, at any one time, a smaller radiating area. My idea is basicaly a cross of the coil clay meathod - building a hollow collem of ropes of clay - and cement pouring - using retainer walls. That is, you pour molten moon-dust/rock into tungsten(?) molds, which size necisiated by weight, requires be moved frequently, in (my case) a spiral path, building upwards with each rotation. |
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