On Mar 19, 9:31 pm, Larry wrote:
Wayne.B wrote :
On Wed, 19 Mar 2008 13:52:38 +0000, Larry wrote:
A quiet cabinet genset will easily fit where the monster batteries are
corroding away as I type. Next makes one you can hardly hear run that
will put out 8KW for a little oil.
Can you provide a URL for one of those ?
http://www.nextgenerationpower.com/
http://www.soundmarinediesel.com/generators.html
http://www.yellowbot.com/next-genera...-jacksonville-
fl.html
They run slower than 3600 RPM because they use a belt drive system to
increase the RPM from the Kubota running its favorite speed of 2800 RPM.
Having owned, now, two Honda electronic gensets, I think it's way past
time someone engineered a marine electronic generator set that operates
the same way. The frequency of these Next generators are still
dependent on engine speed, though slower. The electronic generators,
this is not so. The small electronic generators get their power from
tiny packages by running FASTER than the speed of directly coupled
gensets. The larger models in metal cases like my EU3000is run much
slower than those speeds, making them much quieter in operation, the
computer speeding them up only during heavy loads. A marine model would
operate similarly, saving noise and, much more importantly now, fuel.
A very slow turning diesel electronic genset would be very quiet,
indeed. It would also be tiny in comparison to the old 60 Hz monsters
because the actual alternator is a very high frequency, multiphase unit
that looks exactly like the magnets mounted on the flywheel with an
internal stator on an outboard motor. High voltage alternators keep
down the huge coils used to create 60 Hz on huge cores necessary to go
so low in frequency. That's no longer necessary, with the advances in
electronic power generation.
Next generators are nice, but still old tractor technology in a small
package. It's time to move on into the 21st Century, even for
sailboats.
Hi, again,
And how much do these beauties cost? ...
.... Our hosts ashore are generously offering us the use of one of
their cars. The current vehicle (pardon the expression) is a Ford
Hybrid.
When it's time to repower Flying Pig, I sincerely hope the technology
and the powerplants have caught up to the marine world, because, the
regenerative braking aside, I can see this technology in our boat,
very comfortably.
It's way OT, so I'll not go into it, but research how power is
delivered to the wheels and stored and generated. Seriously cool.
It's a gas (again, pardon the expression) to take an empty SUV to the
pump and *almost* squeeze in 12 gallons...
Meanwhile, the genset we took out was _under 800 hours_ (that's how
serious it was), and we've not missed the AC - or, at least, not
enough to regret regaining the storage and simplicity, even if we
wouldn't have needed the genset - even at the dock in August in
Charleston. At anchor, we sleep under blankets or, if unusually warm,
sheets. Assuming we ever get to somewhere with a reliable breeze,
we'll definitely - instead of nearly always - be just fine. It's the
dock queens that need the AC...
Oh, and, this summer, we'll start in Maine in either late June or
early July. With the 50* water around us, I have no doubt that, even
with the sometimes-blistering sun for 19 or so hours, we'll be under
blankets at night. Then we'll move south, staying in the warm, but
not hot, environment, getting to the Keys by fall (October-ish) before
we make the jump to the EC, likely never to sail back until it's time
to sell.
Back to the genset/hybrid concept, however, I readily accept the
possibilities for a very small powerplant with an accompanying very
large storage system, and a completely 110VAC boat. Simplifies a lot
of stuff, and despite the many systems we have aboard, I'm a big fan
of simple. In the meantime, our power generation and storage system
seems to be doing very well.
L8R
Skip
PS Wilbur, you're probably right - but the bored wouldn't have
bothered to read it, if even open it :{))
Morgan 461 #2
SV Flying Pig KI4MPC
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