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co2 calculater

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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how the heck do you use this thing??????
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co2 calculater

Unread postAuthor: ajb12345 » Wed Jun 11, 2008 10:15 pm

Here is a calculator to tell you how much co2 youll need to fill up your chamber to a certain psi at a certain tempurature. just fill min what ever it sais in the box next to it. Example:

psi 100
temp 80

just follow the url to get to my instructable.

http://www.instructables.com/id/co2-calculator-for-your-spuddie/
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Unread postAuthor: Lentamentalisk » Wed Jun 11, 2008 10:29 pm

ie; PV=nRT in a box?

For those of you that want to do it on your own, so that you don't need a computer with you, do this

(Desired pressure)*(Volume of chamber)=(Mols needed)*(temperature)*0.08206
then multiply the mols needed by 44 to get the grams of CO2 you will need


simplified
(Desired pressure)*(Volume of chamber)=(Grams needed)*(temperature)*0.001865
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Unread postAuthor: ajb12345 » Wed Jun 11, 2008 11:15 pm

I believe I used the equation chamber volume in cubic in. * psi wanted/ (temp in Farangeght + 460)/ 26.5
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Unread postAuthor: Lentamentalisk » Thu Jun 12, 2008 8:25 pm

ewwww! empirical units! There is nothing like Kelvin, liters, meters, and grams when it comes to science
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Unread postAuthor: ajb12345 » Thu Jun 12, 2008 10:27 pm

yah sorry about that. i just got the equation from the sticky. i just wanted to make it easier. so srry about no metrics.
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Unread postAuthor: Hubb » Fri Jun 13, 2008 4:54 pm

http://www.spudfiles.com/forums/not-a-co2-calculator-updated-t11327.html

I did the same in this link (only, when I updated, I added combustion stuff).
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