Subject: Helium!
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Wonderfully off topic for Igor, but extremely topical for science.
Wow, that's a lot of He. And units do matter. I was being flip. As a chemist, I still find people confused about STP. The real reason to conserve He transcends financial as I'm sure all will agree.
Stephen R. Springston
srs at bnl.gov
(631) 344-4477
Building 815E
Brookhaven National Laboratory
Upton, NY 11973-5000
-----Original Message-----
From: Info-igor info-igor-bounces at lists.info-igor.org On Behalf Of Scott Hannahs
Sent: 2019-09-11 13:02
To: Igor Discussion List <info-igor at lists.info-igor.org>
Subject: Re: Helium!
Absolutely. I think I said liquid liter equivalents early on but I may have dropped that in the replies. We have standardized on liquid liter equivalents since it is easier to visualize and is what we as experimenters/users of the facility think in. The gas is delivered in 100SCF and priced that way which is ugly. The storage tanks are in gaseous gallons.
So we talk about quantities stored and transferred in liquid liter equivalents. However all our flows (purifier, magnet cooling, liquefier) are in grams/sec. Go figure.
It is a lot. And trying to keep losses down to a minimum is becoming more and more financially important.
-Scott
> On Sep 10, 2019, at 3:21 PM, Springston, Stephen via Info-igor <info-igor at lists.info-igor.org> wrote:
>
> Liquid or gaseous L/y?? State matters. ~24L gas = ~32 cm^3 liquid.
> 800,000 is a lot in either state. (Misspent chemistry training)
>
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