Method 40 cf 2,015 PSI vs 55 cf 1,800 Psi. Welders?

[lmon]

Hi, just wondering which one is a better option for exit bag method. Which one will last longer, or is one just better? Do both need a high pressure regulator? Let me know. :p I've never seen this discussed idk why

 

[lmon]

If I understand the formula correctly, it would be 40 cf x 2015 psi, then divided by 14.7 (atmospheric pressure) = ~5482 cf of gas for the first tank, and ~6734 cf for the second.

Woah.. this is amazing to me bc I can't math. So by the math, does that mean the 2nd one would last longer?

 

[justsayin]

If I understand the formula correctly, it would be 40 cf x 2015 psi, then divided by 14.7 (atmospheric pressure) = ~5482 cf of gas for the first tank, and ~6734 cf for the second.

Nope.

 

[Interloper]

Nope.

Yeah I was never a smart one

 

[justsayin]

Yeah I was never a smart one

You answered too fast. I didn't have time to check the math and add details.

40 cf is more than thousand liters, and is the volume you would get at atmospheric pressure. The volume of the cylinder itself should be about 8 liters or so.

Woah.. this is amazing to me bc I can't math. So by the math, does that mean the 2nd one would last longer?

If you can't math, then you should stay away from things where math makes a difference between life and death.

 

[Interloper]

You answered too fast. I didn't have time to check the math and add details.

40 cf is more than thousand liters, and is the volume you would get at atmospheric pressure. The volume of the cylinder itself should be about 8 liters or so.

Yeah I definitely assumed too quickly that the 40 cf meant water volume, don't have a mental reference as to what 1 cf looks like. This shit is way easier with liters and bar

 

[Interloper]

You answered too fast. I didn't have time to check the math and add details.

40 cf is more than thousand liters, and is the volume you would get at atmospheric pressure. The volume of the cylinder itself should be about 8 liters or so.



If you can't math, then you should stay away from things where math makes a difference between life and death.

And also would you mind deleting my embarrassing quote cringing internally now that I've looked into cf measurements

 

[Capsicum_Corral]

AntiquatedHorror said:

If I understand the formula correctly,

And also would you mind deleting my embarrassing quote

Uh, oh. It's on the internet now... But you did qualify your answer with the "if I understand correctly", so not as bad as it could be.

 

[Interloper]

AntiquatedHorror said:


Uh, oh. It's on the internet now... But you did qualify your answer with the "if I understand correctly", so not as bad as it could be.

it's good suicide fuel at least.

 

[justsayin]

And also would you mind deleting my embarrassing quote cringing internally now that I've looked into cf measurements

Only mods can edit old posts. The error you made is very common, and you shouldn't stress about it.

Here's a $327 million joke to cheer you up:

Mars Climate Orbiter - Wikipedia

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