Viewing a single comment thread. View all comments

mfb- t1_j876vxs wrote

If the tube is open: Sure. There is nothing that would stop it.

Edit: This thread transitioned from a purely hypothetical question to a safety question.

−1

SnekkyGlekky OP t1_j8770yn wrote

Do u think any co2 from rotting material would get stuck in the tube or would it excape?

1

mfb- t1_j879o6r wrote

Where did rotten material come from, and why do I think this is not a purely hypothetical question?

23

twohedwlf t1_j8778p5 wrote

If there was rotting material in there, maybe it would build up a bit. But, if it's open and going through a hill you'll probably get a decent amount of airflow through it.

2

SnekkyGlekky OP t1_j877cie wrote

Cool, I was wondering if the air wouldn’t be able to penetrate the tube because of how long it is

0

dogeheroic t1_j878df7 wrote

Depends on the pressure and temperature differential. You could have a face of the mountain be in direct sun heating up wand creating a difference in pressure. It's not about how windy it is, the pressure delta is what makes wind

6

mermaldad t1_j878pmf wrote

No, the length of the tube might slow the wind down, but it should still move air through the tube. I assume you are thinking of crawling through the tube. I would certainly take precautions before attempting such a thing. Perhaps search for spelunking resources that can tell you what equipment to take, what procedures to follow, etc.

4

duhvorced t1_j88h2il wrote

Since this is clearly not a hypothetical based on your other comments…

  • what is the nominal purpose of the tube? Drain pipe? Irrigation?
  • Is the tube open at both ends?
  • Is there any sort of airflow through it? (Take a handful of dirt/dust, let it fall directly in front of the tube opening, watch dust carefully for signs of air movement.)

If the tube is open, at that length I would expect the natural conditions (temperature and pressure differentials) to create a natural airflow, in which case it’s almost certainly breathable.

1

_koenig_ t1_j87h5eg wrote

CO2 would escape because it's heavier than other air molecules (O2, N2). If you had CH4 on the other hand, it'd build up on the higher part...

0