Timeline for Making propellants on Mars: Why not just LH2/LOX instead of methane?
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 29, 2019 at 14:55 | vote | accept | uhoh | ||
| Jul 28, 2016 at 10:44 | comment | added | uhoh | Here's some handy Hydrogen Fundamentals. The ortho/para issue seems troubling. | |
| Jul 28, 2016 at 10:26 | comment | added | uhoh | Because "using light weight insulation and low pressure, keeping liquid gases cold on Mars is a heck of a lot easier than it is on Earth..." Thermal loading is far lower, vacuum pumps don't need to work nearly as hard. Hydrogen embrittlement is still a stickler though, and there is that video out there when Elon Musk says hydrogen is stupid. No he didn't say that, I'm paraphrasing. | |
| Jul 28, 2016 at 10:22 | comment | added | PearsonArtPhoto♦ | It is hard on the Moon or in space, I don't see why on Mars use much different. | |
| Jul 28, 2016 at 10:08 | comment | added | uhoh | I'm pretty sure using light weight insulation and low pressure, keeping liquid gases cold on Mars is a heck of a lot easier than it is on Earth, so Earth-bound arguments can't be applied directly. Has any one looked at how hard Hydrogen is to store on Mars specifically? At night for example, you have a giant cold sink above your head. It's not dangerous or explosive (is it?) Hmm... Does Hydrogen react with CO2? | |
| Jul 28, 2016 at 9:57 | history | answered | PearsonArtPhoto♦ | CC BY-SA 3.0 |