[90846] in North American Network Operators' Group
Re: WSJ: Big tech firms seeking power
daemon@ATHENA.MIT.EDU (Alex Rubenstein)
Fri Jun 16 21:18:20 2006
Date: Fri, 16 Jun 2006 21:17:52 -0400 (Eastern Daylight Time)
From: Alex Rubenstein <alex@nac.net>
To: Crist Clark <Crist.Clark@globalstar.com>
Cc: nanog@merit.edu
In-Reply-To: <4492D0AB.8C45.0097.0@globalstar.com>
Errors-To: owner-nanog@merit.edu
On Fri, 16 Jun 2006, Crist Clark wrote:
>> Error: you MULTIPLY 3.413 to go from watts to BTU, not divide. It's be
>> 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).
There is a direct correlation between watts and btu's, and that is:
watts * 3.413 = btu
--
Alex Rubenstein, AR97, K2AHR, alex@nac.net, latency, Al Reuben
Net Access Corporation, 800-NET-ME-36, http://www.nac.net
