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- Newsgroups: rec.scuba
- Path: sparky!uunet!mcsun!sunic!news.funet.fi!ajk.tele.fi!funic!nntp.hut.fi!saha.hut.fi!s32905u
- From: s32905u@saha.hut.fi (Jouni Ilari Polkko)
- Subject: Re: Tank sizes/capacities
- Message-ID: <1992Dec22.114441.11797@nntp.hut.fi>
- Sender: usenet@nntp.hut.fi (Usenet pseudouser id)
- Nntp-Posting-Host: saha.hut.fi
- Organization: Helsinki University of Technology, Finland
- References: <1992Dec15.055150.3089@lclark.edu> <1992Dec18.135214.13868@fmg.bt.co.uk>
- Date: Tue, 22 Dec 1992 11:44:41 GMT
- Lines: 26
-
- In article <1992Dec18.135214.13868@fmg.bt.co.uk> pky@fmg.bt.co.uk (Pete Young) writes:
-
- > A 232 bar 15l, according to my calculations, holds 136 cu ft.
- > Someone please check and confirm this!
-
- 232 x 15 = 3480 litres, 1 cu ft = 3,048**3 = 28,3 litres
- so the capacity of 1x15x232 tank is 3480/28,3 = 123 cu ft
-
- > Twin 4 litre cylinders pumped to 300 bar
- > (approx 4350psi) , using DIN fittings and Poseidon regulators.
- >
- > We estimated that this set-up holds the same amount of air as a 232bar
- > 12.2l, but the bulk of the thing is much reduced.
-
- You mean of course 200 bar 12 l tank. In fact 2x4x300 set-up has slightly
- less air becouse air is less ideal in 300 bar than in 200 bar.
-
- > Should we have something in the FAQ about capacities of US and European
- > cylinders? I'm sure it's come up before, as the girl said.
-
- That's a good idea becouse the subject arises every now and then.
-
- > Pete
-
- Jouni Polkko
- jpolkko@niksula.cs.hut.fi
-