All Questions
Tagged with cryogenics lox
10
questions
11
votes
1
answer
1k
views
Falcon-9's subcooled LOX is continuously refrigerated in-situ, what about its subcooled RP-1?
@Uwe's answer to Why would sub-cooled LOX tanks need to “topped-off” until the last minute or so? explains how subcooled LOX is kept cold and dense by "in situ refrigeration"; helium is bubbled ...
- 149k
2
votes
1
answer
412
views
How is Cryogenic fuel kept... Cryogenic in rockets [duplicate]
How is cryogenic fuel & oxidizer kept at cryogenic temperatures in rockets? I am mostly interested in the first stage of launch vehicles rather than something like a Centaur that keeps hydrolox ...
- 703
3
votes
0
answers
245
views
What is the record for LOX staying liquid in space?
Liquid oxygen can be used for breathing, for fuel cells, and as an oxidizer for propulsion. However, it is cryogenic, and will slowly boil off in storage, even in a spacecraft. What is the longest ...
- 48.1k
3
votes
1
answer
166
views
Cryogenic systems in kwajalein Island- Spacex- falcon 1
Is the LOX (liquid oxygen) required for the falcon-1 launch transported or produced?
If transported, how?
If produced, did they set up a cryogenic oxygen plant in Kwajalein?
- 1,161
2
votes
0
answers
92
views
LOX as annular heat sink
I'm thinking of my time spent working with cryostats. Liquid helium pot on the inside, and surrounded by a liquid nitrogen jacket. And the whole thing insulated with vacuum and superinsulation. (...
- 4,287
1
vote
0
answers
159
views
Cryogenic liquid pressurization resulting in overpressurized tank
I want to pressurize a cryogenic liquid (LN2 in this test. Eventually LOX).
I have a setup similar to this and follow a similar procedure to what is described, but I don’t see the same tank pressure ...
- 11
4
votes
1
answer
218
views
Air-launching an Electron-like LOX-based rocket from a plane; technical challenges?
@GremlinWranger's answer and comments to the question Is it coincidence that the Electron has very similar dimensions to the Pegasus? motivates my asking for the technical challenges to air-launching ...
- 149k
0
votes
1
answer
746
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Is the "cryogenic helium" system in recent discussions actually LHe for cryopumping?
I am wondering if the "cryogenic helium" system discussed in articles about the 1-Sept-2016 SpaceX Falcon 9 anomaly (see this answer for a good summary to date) is not actually related to the high ...
- 149k
4
votes
2
answers
369
views
Are cryo tanks heavier than normal tanks (on a per surface area basis)?
From my related question, it turns out cryo tanks are not double-walled for insulation purposes. So now I will continue along a similar line and ask, aren't cryo tanks heavier than normal tanks on a ...
- 4,596
10
votes
3
answers
1k
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A cryo tank within another cryo tank...is it a sound engineering concept?
Here's the idea: A large spherical LH2 tank is placed inside a spherical LOX tank.
The reason I thought of this is so the inner tank doesn't need to be insulated. It doesn't need to be a double-...
- 4,596