- #1
zmorris
- 13
- 0
Hi All, I've googled everywhere trying to find out if the combustion/flammability of hydrogen is reduced at all for low pressure at high altitudes. There is data for hydrogen at high pressures, but I've been unable to find any data for low pressures.
For example, if a hydrogen balloon stays above 100,000 feet (10 mbar), is there a risk of explosion?
I have a hunch that it's still flammable, because the ratio of hydrogen to oxygen is going to be fairly constant.
If you know of data for other gasses like methane, hydrogen would probably be similar.
I'm just asking because helium is becoming rare/expensive as a lifting gas. I realize that leakage is also a problem.
Thanks for your help,
Zack
For example, if a hydrogen balloon stays above 100,000 feet (10 mbar), is there a risk of explosion?
I have a hunch that it's still flammable, because the ratio of hydrogen to oxygen is going to be fairly constant.
If you know of data for other gasses like methane, hydrogen would probably be similar.
I'm just asking because helium is becoming rare/expensive as a lifting gas. I realize that leakage is also a problem.
Thanks for your help,
Zack