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- Newsgroups: sci.energy
- Path: sparky!uunet!mnemosyne.cs.du.edu!nyx!rcanders
- From: rcanders@nyx.cs.du.edu (Rod Anderson)
- Subject: Re: Why not 120 VDC ? Why invert?
- Message-ID: <1993Jan23.061702.18014@mnemosyne.cs.du.edu>
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- References: <1993Jan23.000753.14523@michael.apple.com>
- Date: Sat, 23 Jan 93 06:17:02 GMT
- Lines: 32
-
- In article <1993Jan23.000753.14523@michael.apple.com> ems@michael.apple.com (E. Michael Smith) writes:
- >It seems like an incredibly stupid question to me, but I've got
- >to ask it ...
- >
- >Pondering this ... Why not just use a 120 VDC battery pack and use
- >120 VDC for a bunch of stuff? Lightbulbs don't care if they are
- >AC or DC, nor do electric stoves and ovens or other resistive heat
- >sources. Some tools have AC/DC motors. 120 VDC was a common motor
- >type not too long ago, so I'd expect some motors to be available
- >for things like house fans.
- >
- If you use a 12 volt system you can start out with one set of batteries
- and add capacity in parallel. If you are on 120 volts dc you have 10
- times the number of cells. The initial cost for a 120 volt system will be
- much higher.
-
- >Yeah, I know, you shouldn't have an electric stove or oven. But
- >the house already has one and my wife doesn't want to learn to
- >cook on gas. (though I think it is really 220 ... more batteries...)
-
- Gas stoves are better, They heat faster, you can see if the burner is on
- and you will not have to add solar cells to use them.
- Check power useage of a electric stove and see how much you will have
- to spend on cells to run it.
-
-
-
- --
- Rod Anderson N0NZO | A life consisting exclusively of things
- Boulder, CO | that are Good for You is bad for you.
- rcanders@nyx.cs.du.edu | Kelvin Throop
- satellite N0NZO on ao-16 |
-