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Wayne.B Wayne.B is offline
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First recorded activity by BoatBanter: Jul 2006
Posts: 10,492
Default The Ultimate Alternator Project

On Tue, 30 Nov 2010 12:14:31 -0500, wrote:

On Tue, 30 Nov 2010 09:58:49 -0500, Wayne.B
wrote:

It has large built-in fridges and
freezers, each with its own 110 volt compressor. Each one draws about
1 KW of power while running which is the primary demand while
underway, translating to about 100 amps at 12 volts.


How old are these? My 5 year old Whirlpool side by side only pulls
about 4 amps with the lights on (a significant part of the load). Just
sitting there humming it is more like 3a.
I just pulled my KillaWatt off this PC kludge. I will reset it and put
it on the bar fridge (another full sized Whirlpool, that lives outside
in the tiki bar) that should be comparable to a boat.


These are old holding plate systems designed to run intermittently so
they have large compressors. We could probably save quite a bit of
run time if we upgraded the insulation but that would require ripping
apart a lot of custom woodwork so it's not likely to happen. The
engine room is directly below the built in fridges so a lot of heat
radiates upwards when we're making long runs, especially in the
tropics or around here in the summer time.