[PSUBS-MAILIST] formula

[hank pronk via Personal_Submersibles]

Alan,I need to know how much  a 10.7 cubic foot tank will extra when pumped up to 1,500 psi.  And how many cubic feet of air will I have when it is pumped up.Hank 

    On Friday, March 3, 2017 12:28 PM, Alan via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
 

 
Hank,air weighs .0807 lbs per cubic foot approximately, depending on temperature.So if you have an 80 cubic foot scuba tank the air weight full is 6.45 lb.A scuba tank is 80 cubic ft at 3000 psi. If you halve the pressure you halvethe amount of air & weight. In other words, if you double the pressure youdouble the weight for a given volume.Let us know what you are trying to calculate if this doesn't help.Alan


Sent from my iPad
On 4/03/2017, at 6:33 AM, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:


Okay, I am stumped!  can someone give me a formula to calculate the weight of air at a particular psi per cubic foot.Thank youHank

_______________________________________________
Personal_Submersibles mailing list
Personal_Submersibles at psubs.org
http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles


_______________________________________________
Personal_Submersibles mailing list
Personal_Submersibles at psubs.org
http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles


   
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.whoweb.com/pipermail/personal_submersibles/attachments/20170303/b1a000cc/attachment.html>