| Topic: |
Science > Physics |
| User: |
"" |
| Date: |
09 Apr 2006 04:09:41 PM |
| Object: |
small amount of air volume under pressure |
Please be nice, I am no physicist.
I would like to know at what amount of air volume do I need to worry
about pressure affecting it?
I have a small cylinder that is about 1.5" long and 3/8" diameter with
both ends capped. I need to scuba dive (max depth 300') with this and
would like to know if there is a worry about pressure affecting it at
depth?
As I said I am no physicist so I really have no idea were to start with
this other than sending it to a test facility with a pressure chamber.
Thanks in advance for any help.
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| User: "srp" |
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| Title: Re: small amount of air volume under pressure |
09 Apr 2006 09:26:25 PM |
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a écrit :
Please be nice, I am no physicist.
I would like to know at what amount of air volume do I need to worry
about pressure affecting it?
I have a small cylinder that is about 1.5" long and 3/8" diameter with
both ends capped. I need to scuba dive (max depth 300') with this and
would like to know if there is a worry about pressure affecting it at
depth?
Scuba diving to 300'
Are you serious ?
André Michaud
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| User: "tj Frazir" |
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| Title: Re: small amount of air volume under pressure |
09 Apr 2006 11:41:00 PM |
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How will they pack yer dead ***** in the tube at 300 feet ?
300 feet is not fo morons.
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| User: "CrankHater" |
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| Title: Re: small amount of air volume under pressure |
10 Apr 2006 02:57:49 AM |
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wrote:
Please be nice, I am no physicist.
I need to scuba dive (max depth 300') with this and
would like to know if there is a worry about pressure affecting it at
depth?
might not be a physicist but that is the least of your probs when you
are 300' down
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| User: "Gregory L. Hansen" |
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| Title: Re: small amount of air volume under pressure |
10 Apr 2006 09:40:11 AM |
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In article <1144655869.279293.17540@t31g2000cwb.googlegroups.com>,
CrankHater <yt56erd@gmail.com> wrote:
brett.bisbe@gmail.com wrote:
Please be nice, I am no physicist.
I need to scuba dive (max depth 300') with this and
would like to know if there is a worry about pressure affecting it at
depth?
might not be a physicist but that is the least of your probs when you
are 300' down
Trimix can get you that far. Hope he knows how to use it.
--
"Not that there's anything wrong with just lying around on your back. In
its way, rotting is interesing too... It's just that there are other ways
to spend your time as a cadaver." -- Mary Roach, "Stiff", 2003.
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| User: "tj Frazir" |
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| Title: Re: small amount of air volume under pressure |
10 Apr 2006 01:21:35 PM |
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120 psi .
get inside an aircompessor and pump it up to
50 psi and let us know .
122 psi to get air out of your tank.
You cant handle 122 psi at 5 feet deep.
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| User: "Gregory L. Hansen" |
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| Title: Re: small amount of air volume under pressure |
10 Apr 2006 09:39:34 AM |
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In article <1144616981.123343.182990@j33g2000cwa.googlegroups.com>,
<brett.bisbe@gmail.com> wrote:
Please be nice, I am no physicist.
I would like to know at what amount of air volume do I need to worry
about pressure affecting it?
I have a small cylinder that is about 1.5" long and 3/8" diameter with
both ends capped. I need to scuba dive (max depth 300') with this and
would like to know if there is a worry about pressure affecting it at
depth?
As I said I am no physicist so I really have no idea were to start with
this other than sending it to a test facility with a pressure chamber.
Thanks in advance for any help.
http://cisatlantic.com/trimix/other/prdf.htm
--
"Voice or no voice, the people can always be brought to the bidding of
the leaders. This is easy. All you have to do is to tell them they
are being attacked, and denounce the pacifists for lack of patriotism
and exposing the country to danger." -- Hermann Goering
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| User: "tj Frazir" |
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| Title: Re: small amount of air volume under pressure |
10 Apr 2006 01:23:21 PM |
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tie a rock to it and send it down 400 feet and reel it back up.
tell us if it held up.
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| User: "" |
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| Title: Re: small amount of air volume under pressure |
09 Apr 2006 04:28:12 PM |
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Very roughly, water pressure varies as roughly 0.433 lbs psi per foot
of depth. (There is a small variation between sea water and salt water,
and the water temperature varies this a bit, but a simple estimate is
that at 300-feet, there is roughly 130 psi being applied to the surface
of your cylinder by the water.
This not a great deal of pressure for a tube the size you indicate to
withstand, unless it were made of extremely thin metal. Then too, you
could test it by placing in inside a compressed air tank and purmping
the tank up to this amount of pressure.
Harry C.
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| User: "CWatters" |
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| Title: Re: small amount of air volume under pressure |
09 Apr 2006 06:12:01 PM |
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<hhc314@yahoo.com> wrote in message
news:1144618092.740002.263140@j33g2000cwa.googlegroups.com...
Then too, you
could test it by placing in inside a compressed air tank and purmping
the tank up to this amount of pressure.
Or just lower it down on a 300 ft rope.
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| User: "" |
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| Title: Re: small amount of air volume under pressure |
09 Apr 2006 04:53:59 PM |
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That is what I was looking for...Thanks.
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