The National Building Code of Canada specifies all ventilation, air supply and
air extraction rates in either L/s or m3/s. Hope this helps.
John F-L
----- Original Message -----
From: Remek Kocz
To: U.S. Metric Association
Sent: Friday, March 18, 2011 12:36 PM
Subject: [USMA:50087] Re: PC Case fans & flow measurements
Guys, thanks for the conversion factors, but that's not what I was asking
for. My question is specifically about metric units of airflow for PC fans.
Is there an accepted, standardized metric unit reported for airflow in PC fans,
like CFM is in the imperial?
Remek
On Fri, Mar 18, 2011 at 6:32 AM, John M. Steele <jmsteele9...@sbcglobal.net>
wrote:
Try out each conversion, and see which leads to round numbers. To
expand on Jim's factor:
1 ft3/min = 0.471 947 4 L/s = 28.316 84 L/min = 1.699 011 m³/h
--- On Fri, 3/18/11, Remek Kocz <rek...@gmail.com> wrote:
From: Remek Kocz <rek...@gmail.com>
Subject: [USMA:50081] Re: PC Case fans & flow measurements
To: "U.S. Metric Association" <usma@colostate.edu>
Date: Friday, March 18, 2011, 12:13 AM
Because I'm not sure what's used in the metric world of airflow
measurement. I recall seeing maybe cubic meters per hour, but I know for sure
that it wasn't L/min.
On Thu, Mar 17, 2011 at 5:25 PM, James R. Frysinger
<j...@metricmethods.com> wrote:
Why don't you calculate how may liters per second those figures
come out to? Or liters per minute? Use
1 ft3/min = 0.471 947 4 L/s
according to SP 811.
Jim
On 2011-03-17 1550, Remek Kocz wrote:
I'm shopping around for a PC case fan, and I noticed a strange
trend in
terms of airflow measurements. Whereas in the past it used to
be that
the cubic foot per minute numbers were fairly round and
elegant, these
days they've become strange, with up to two figures past the
decimal
point. I can assume that the Asian manufacturers began
insisting on
the metric terms, and these oddball CFM's are the conversions.
Any ideas?
--
James R. Frysinger
632 Stony Point Mountain Road
Doyle, TN 38559-3030
(C) 931.212.0267
(H) 931.657.3107
(F) 931.657.3108
