nanog mailing list archives
Re: WSJ: Big tech firms seeking power
From: Alex Rubenstein <alex () nac net>
Date: Fri, 16 Jun 2006 21:17:52 -0400 (Eastern Daylight Time)
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
Current thread:
- WSJ: Big tech firms seeking power Sean Donelan (Jun 14)
- Re: WSJ: Big tech firms seeking power Matthew Petach (Jun 15)
- Re: WSJ: Big tech firms seeking power chuck goolsbee (Jun 16)
- Re: WSJ: Big tech firms seeking power Alexei Roudnev (Jun 16)
- RE: WSJ: Big tech firms seeking power Christian Nielsen (Jun 16)
- Re: WSJ: Big tech firms seeking power Matthew Crocker (Jun 16)
- Re: WSJ: Big tech firms seeking power Alex Rubenstein (Jun 16)
- Re: WSJ: Big tech firms seeking power Michael Loftis (Jun 16)
- Re: WSJ: Big tech firms seeking power Alexei Roudnev (Jun 17)
- Re: WSJ: Big tech firms seeking power Crist Clark (Jun 16)
- Re: WSJ: Big tech firms seeking power Alex Rubenstein (Jun 16)
- Re: WSJ: Big tech firms seeking power Nicholas Suan (Jun 16)
- Re: WSJ: Big tech firms seeking power william(at)elan.net (Jun 16)
- Re: WSJ: Big tech firms seeking power Adam McKenna (Jun 16)
- Re: WSJ: Big tech firms seeking power chuck goolsbee (Jun 16)
- Re: WSJ: Big tech firms seeking power Chris Adams (Jun 16)
- Re: WSJ: Big tech firms seeking power Alex Rubenstein (Jun 16)
- Re: WSJ: Big tech firms seeking power david raistrick (Jun 16)
- Re: WSJ: Big tech firms seeking power David Lesher (Jun 16)
- Re: WSJ: Big tech firms seeking power Mikael Abrahamsson (Jun 16)
- Re: WSJ: Big tech firms seeking power Alex Rubenstein (Jun 16)
- Re: WSJ: Big tech firms seeking power David Lesher (Jun 17)
- Re: WSJ: Big tech firms seeking power Matthew Petach (Jun 15)