[90849] in North American Network Operators' Group
Re: WSJ: Big tech firms seeking power
daemon@ATHENA.MIT.EDU (william(at)elan.net)
Fri Jun 16 22:10:24 2006
Date: Fri, 16 Jun 2006 19:09:37 -0700 (PDT)
From: "william(at)elan.net" <william@elan.net>
To: Alex Rubenstein <alex@nac.net>
Cc: Crist Clark <Crist.Clark@globalstar.com>, nanog@merit.edu
In-Reply-To: <Pine.WNT.4.62.0606162115320.3144@vanadium.hq.nac.net>
Errors-To: owner-nanog@merit.edu
On Fri, 16 Jun 2006, Alex Rubenstein wrote:
>>> more like 154,000,000 BTU, /12000 or 12,798 tons.
>>
>> Well, the bigger problem here is that a watt is a measure of
>> power (engergy/time) and a BTU is a unit of energy. There is no
>> dimensionless conversion factor between the two.
>
> Huh?
>
> A Watt has no time constant. A watt is an amount of energy consumed at a
> moment (ie, a 60 watt light bulb), not an amount of energy over time (like a
> watt-hour; for instance, a 60 watt light bulb uses 60 watt-hours of power
> every hour, or 1.44 kwatt-hrs per day).
Since you like Wikipedia so much, why don't you look it up:
http://en.wikipedia.org/wiki/Watt
Watt is not amount of power but amount of power produced during time, i.e.
its speed of energy consumption.
However kwatt-hour (I've never heard of watt-hour, but I suppose that
maybe used too..) is actually amount of energy consumed - more precisely
X kwr its how much energy device would consume if it were consuming
energy at exactly the same speed of X kw for entire hour.
--
William Leibzon
Elan Networks
william@elan.net
