Jan, Before I dig down into further chapters of benchmark 2, I feel like picking up the challenge you threw me on design parameters for the garage/hub, see...
Thanks for that list, Ueli, will have a session on the printout with a flourescent yellow marker soon, and highlight the key components. It looks like that the...
Hi all, As Jan suggests, I'm moving this discussion over into our Habitats Yahoo at http://groups.yahoo.com/group/NEAminesHabitats In case you want to join the...
Hi all, Here's another draft chapter of our benchmark 2: Pulling together where we stand with regard to orbital tugs. Please send in feedbacks so I can be sure...
Ueli, this seems to cover the bases well. Arising out of the points made is that if a variant of the tug was stripped down to a minimum configuration, no...
from: James Wilson spacetrader.net If we are going to use water as fuel and other purposes; we need to consider its downside. 1. freezing water expands,...
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Nov 5, 2007 6:08 pm
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Ueli, this looks more promising than I originally remembered, and certainly seems applicable to axial seals on a station in vacuum. Provides vacuum seal,...
Ueli, in order that a static 'garage' is not carried around within a rotating axis on a LEOstation, then it looks like there will have to be TWO rings...
Jup, been scratching my head on this. Actually, with a bootstrapped garage I was even thinking of having the garage turn with the whole ring, no stator. So...
Wow, looks like we got this problem covered? So there is a pathway from know technology to a viable structural solution for a permanently pressurized...
Good points James, we certainly will need to keep a lookout for any downsides of using water. But so far I think what we've discovered is that water will be...
Jan, I think we might reconsider flywheels as energy saving devices instead of clunky batteries. Apparently flywheels can store a lot more energy per unit mass...
Phase 2: Most supplies going to the garage can go directly there. Especially parts and such too big for the two meter airlock can go directly into the garage...
Jim, I like the way you look at the bootstrapping challenges on the LEOstation because you're cutting it way down to manageable steps to start with. What we do...
I have for years been suggestion using carbon dioxide as the fluid for power generation. One nuclear engineer designed his using cooling using carbon dioxide...
Since all fluids sublime in a vacuum we should not use lubricants that leave deposits. Ferrofluids have microscopic bits of iron. Some greases and oils sublime...
High carbon iron and steel in a high oxygen environment with salt and water rust quickly. If there is no or little carbon, salt, and oxygen then rust is not...
Yes, Jim, that was my first instinctive reaction. However, if you inspect the links, you may notice that specific references to applications in vacuum...
As I remember the flywheel work of a few years ago they were creating a vacuum chamber with for the flywheel for power storage in a car much instead of...
Yes it looks like they have the problems fixed for small shaft vacuum seals. I still think we will have problems in a very large area like a one to three meter...
Okay Jim, four options for the rotational collar: 1. "Spinning garage": No collar, everything spins along at the same rpms. 2. "Docking": Collar isn't...
Number 3 is similar to #1 where the garage spins with the hub, but has the inside, and or the outside geared with a layer that is not. When in the garage most...
Sounds reasonable, Jim, we cannot afford to neglect any options while casting around for the most favourable one. It may be preferable to have a fail-safe...
Great stuff Jan, thanks a ton. The beauty of this is that I'm seeing stuff we've agreed on, and that I don't have to agree with everything that is there, but...
Hi all, Here's another draft chapter of our benchmark 2: Pulling together where we stand with regard to PROPULSION. Please send in feedbacks so I can be sure I...
Hi all, Okay, so here is another draft chapter of our benchmark 2: Pulling together where we stand with regard to ENERGY. Please send in feedbacks so I can be...
Some feedback here, Ueli. A fairly detailed study on METs of up to 1kW here: 'A Numerical and Experimental Study of a Two-Stage Microwave Electrothermal...
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