James;
I have thought of marinizing an engine myself, but I have not found any
information that leads me to believe that it is possible to do this, save
money, and have a reliable safe engine in the end.
If I could find info on inexpensive (relative) marinization of small Kubota
1-2 cylinder diesels, that would be great.
Chris
On 7/20/09 11:57 AM, "jameslambden" <james@toolboat.
>
>
>
>
> You can build a genset by mounting any permanent magnet ac electric motor
> (alternator) to any diesel motor, putting the three phases through a diode
> bridge, then through a charge controller to the batteries. Belt driving the
> alternator is a good idea so the harmonics of the engine do not affect the
> alternator (electric motor) and vice versa.
>
> The Outback Flex Max 80 charge controller will output 4.7 KW at 59 Volts.
> The alternator could be set up at run at voltages up to 145 volts and the
> Outback would step it down to the bulk voltage of a 48 volt battery bank.
>
> Occasionally overstock supply companies sell diesel engines very
> inexpensively. You can always marinize the unit yourself with not too much
> trouble.
>
> If someone is interested in having one built for them, feel free to contact.
>
> James Lambden
>
> Santa Barbara, CA
>
> http://www.abovethe
>
> http://www.propulsi
>
> --- In electricboats@
> , "Larry Doyle" <ldoyle@...> wrote:
>> >
>> > This works on the same principle as a computer UPS. In a UPS, the computer
>> > runs off the batteries at the same time as the charger charges the
>> > batteries.
>> >
>> > Larry
>> >
>> >
>> >
>> > -----Original Message-----
>> > From: electricboats@
>> <mailto:electricboa
>> [mailto:electricboats@
>> <mailto:electricboa
>> > On Behalf Of Colin Girvan
>> > Sent: Friday, July 17, 2009 11:22 AM
>> > To: electricboats@
>> > Subject: RE: [Electric Boats] The missing link in "affordable" diesel
>> > electric
>> >
>> >
>> >
>> >
>> > I'm also very keen on this possibility and put forward the same suggestion
>> > several weeks back. It seems the major problem with this set up is
>> > regulating the output to charge batteries.
>> >
>> > As far as bypassing the batteries to run directly off the output, I may be
>> > wrong but I thought you could do this through the batteries. In other words
>> > the motor takes 100 amps out of the batteries while the generator puts in a
>> > 100 amps. I would be interested in peoples comments on whether this is
>> > correct and if so would there be losses involved or are the batteries
>> acting
>> > as a wire connecting the generator to the motor.
>> >
>> > Colin Girvan
>> >
>> > BC Canada
>> >
>> > --- On Fri, 7/17/09, Alycia & Kevin Miller-Lynch <ak@...
>> > <mailto:ak%40twcny.
>> >
>> > From: Alycia & Kevin Miller-Lynch <ak@... <mailto:ak%40twcny.
>> > com>
>> > Subject: RE: [Electric Boats] The missing link in "affordable" diesel
>> > electric
>> > To: electricboats@ <mailto:electricboa
>> > Received: Friday, July 17, 2009, 3:42 AM
>> >
>> >
>> >
>> > I'll be the first to admit I'm a hack--- no expert, but here's a thought.
>> >
>> > Instead of buying and off-the-shelf diesel generator, why not make one? Buy
>> >
>> > e-tek type motor with regen capability (thunderstruck? ) with belt or
>> direct
>> >
>> > drive (get the correct speed) to something alike a carrol stream liquid
>> >
>> > cooled diesel (or even aircooled if you don't mind the noise and run some
>> >
>> > venting). This is in addition of course to your primary electric motor for
>> >
>> > propulsion. You could probably do it for about 2500. Still not cheap
>> >
>> > cheap, but less expensive then a commercial option.
>> >
>> > You use the regen to charge your bank as you draw on it. Possibly even hook
>> >
>> > up a bypass circuit and run the motor directly off the generator (just like
>> >
>> > the big cruise ships).
>> >
>> > The motor with regen would be much more efficient then an alternator (don't
>> >
>> > need to excite the coils) and probably doesn't cost a lot more then a high
>> >
>> > capacity alternator.
>> >
>> > Let the critique begin.
>> >
>> > Kevin
>> >
>> > From: electricboats@ yahoogroups. com [mailto:electricboa
>> > com]
>> >
>> > On Behalf Of Mike
>> >
>> > Sent: Thursday, July 16, 2009 10:48 PM
>> >
>> > To: electricboats@ yahoogroups. com
>> >
>> > Subject: Re: [Electric Boats] The missing link in "affordable" diesel
>> >
>> > electric
>> >
>> > Chris:
>> >
>> > I certainly can understand the frustration of sailing backwards. For me
>> >
>> > going electric has made me plan my trips with tide and currents more
>> because
>> >
>> > of the limits of electric storage capacity but, I did the same when I had a
>> >
>> > diesel engine too. I also anticipate there may come a time when I might
>> want
>> >
>> > to anchor and wait for the breeze or current change if the battery bank is
>> >
>> > running down. Happily so far that has not been a choice I've had to make..
>> >
>> > Bucking currents is never any fun.
>> >
>> > The beauty of electric propulsion is the ability to incorporate new
>> >
>> > technologies into ones system whether it's a more lightweight generator or
>> >
>> > new battery technology according to one's needs. So far my needs are being
>> >
>> > met by the solar panel, wind generator and Honda 2000i. But, I look forward
>> >
>> > to reading about your choice in generators too.
>> >
>> > Mike
>> >
>> > http://biankablog. blogspot. com
>> >
>> > --- On Fri, 7/17/09, Chris Witzgall <chris@witzgall. org
>> >
>> > <mailto:chris% 40witzgall. org> > wrote:
>> >
>> > From: Chris Witzgall <chris@witzgall. org <mailto:chris% 40witzgall. org> >
>> >
>> > Subject: Re: [Electric Boats] The missing link in "affordable" diesel
>> >
>> > electric
>> >
>> > To: electricboats@ yahoogroups. com <mailto:electricboa ts%40yahoogroups
>> > .com>
>> >
>> > Date: Friday, July 17, 2009, 1:41 AM
>> >
>> > Mike;
>> >
>> > In most situations, you are correct. However, there are times when
>> prolonged
>> >
>> > motoring in adverse conditions is just a part of cruising. There are also
>> >
>> > times when the wind is light, and currents mean that you are either going
>> >
>> > backwards, or motoring. It is these kinds of scenarios that I would like to
>> >
>> > have the option of motoring.
>> >
>> > Hopefully, this is not often. The gensets I have found are really more than
>> >
>> > I think I would want. Something that can safely generate 60a, or even less,
>> >
>> > may be ideal. I am not sure. But having the ability to extend the motoring
>> >
>> > time say by 50% with the help of a small single cyl diesel genset may be >>
the
>> >
>> > ticket. If Lombardini/Kohler can make an air-cooled motor that is 70 lbs >>
for
>> >
>> > 6.7hp, could they not create a 5hp water cooled one for not much more? Then
>> >
>> > add an Electrodyne 75a Alternator, and you have something. Or something
>> like
>> >
>> > that.
>> >
>> > I would consider the air cooled generator, except I think they would be too
>> >
>> > damm loud.
>> >
>> > Chris
>> >
>> > On 7/16/09 9:31 PM, "Mike" <biankablog@ verizon. net> wrote:
>> >
>>> > >
>> >
>>> > >
>> >
>>> > >
>> >
>>> > >
>> >
>>> > > Chris:
>> >
>>> > >
>> >
>>> > > While I was thinking putting in a 48 volt diesel generator is always an
>> >
>>> > > option. But, I think I've gotten too use to the smell of clean down >>>
below
>> >
>> > to
>> >
>>> > > go back to diesel. I'm not so sure that a diesel generator will be all
>> >
>> > that
>> >
>>> > > reliable in a storm anyway. There are plenty of stories of diesels that
>> >
>> > have
>> >
>>> > > died in storm conditions as the crud in the tanks got stired up and
>> >
>> > clogged
>> >
>>> > > the filters. If you are in a storm there will be wind and a storm sail
>> >
>> > may be
>> >
>>> > > a better choice than relying on an engine to slug it out with the ocean.
>> >
>>> > > Remember too in storm conditions your wind generator should be pegging
the
>> >
>>> > > ammeter too charging your battery banks. Then there is a sea anchor and
>> >
>>> > > drouges which may not give you any forward movement but, will allow you
to
>> >
>>> > > rest. Hopefully. <g> I'm not sure how having a diesel generator will >>>
help
>> >
>> > that
>> >
>>> > > much in storm conditions.
>> >
>>> > >
>> >
>>> > > Mike
>> >
>>> > > http://biankablog. blogspot. com
>> >
>>> > >
>> >
>>> > > --- On Wed, 7/15/09, Chris Witzgall <chris@witzgall. org
>> >
>>> > > <mailto:chris% 40witzgall. org> > wrote:
>> >
>>> > >
>> >
>>> > > From: Chris Witzgall <chris@witzgall. org <mailto:chris% 40witzgall. >>>
org>
>> >
>>> > >
>> >
>>> > > Subject: [Electric Boats] The missing link in "affordable" diesel
>>> electric
>> >
>>> > > To: "electricboats@ yahoogroups. com <mailto:electricboa
>>> ts%40yahoogroups
>> >
>> > .com> "
>> >
>>> > > <electricboats@ yahoogroups. com <mailto:electricboa ts%40yahoogroups
>> >
>> > .com> >
>> >
>>> > > Date: Wednesday, July 15, 2009, 3:37 PM
>> >
>>> > >
>> >
>>> > > We have a 32¹ Westerly Fulmar. It weighs perhaps 12,000 lbs, with a 26¹
>> >
>>> > > waterline, and is currently powered by a Volvo 18hp engine.
>> >
>>> > >
>> >
>>> > > It seems to be that both motor and battery technology has finally come
to
>> >
>> > a
>> >
>>> > > place that can support owner installed electric boats that need to be
>>> able
>> >
>>> > > to have a longer range. The missing piece is a small, light diesel dc
>> >
>>> > > generator that can put out between 40-100a @ 48v. Something like this,
but
>> >
>>> > > marinized:
>> >
>>> > >
>> >
>>> > > http://www.polarpow erinc.com/ products/ generators/ 1-3,5kw_Lambardi
>> >
>> > ni.htm
>> >
>>> > >
>> >
>>> > > Is anyone else thinking about this the same way as I am? Our future >>>
plans
>> >
>>> > > may include a few years of full -time cruising, so we won¹t be able to
>> >
>>> > > recharge at the dock, and extended motoring time for safely is a
>> >
>> > necessity.
>> >
>>> > >
>> >
>>> > > Put a 400ah 24v bank, or a 200ah 48v bank of LIFEPO4 batteries, weighing
>> >
>> > at
>> >
>>> > > ~100 lbs. Add a 12v converter, say 10 lbs. DC motor and assembly, 50-100
>> >
>>> > > lbs. DC Generator, 150lbs (made up number) Total system weight = <360
lbs
>> >
>>> > >
>> >
>>> > > Remove: 305lbs engine and transmission. 160lbs of lead acid batteries.
>> >
>> > Extra
>> >
>>> > > diesel tankage already on boat (keep 20 gallon tank only) 50lbs. Total
>> >
>>> > > removal: 515lbs.
>> >
>>> > >
>> >
>>> > > The only component that is missing is that generator. Gas is not an
>>> option
>> >
>>> > > for safety reasons. While the little Hondas are great generators, I >>>
would
>> >
>>> > > not want to rely on keeping one running during a storm.
>> >
>>> > >
>> >
>>> > > Thoughts?
>> >
>>> > >
>> >
>>> > > Chris
>> >
>>> > >
>> >
>>> > > [Non-text portions of this message have been removed]
>> >
>>> > >
>> >
>>> > > [Non-text portions of this message have been removed]
>> >
>>> > >
>> >
>>> > >
>> >
>>> > >
>> >
>>> > >
>> >
>>>> > >>
>> >
>> > [Non-text portions of this message have been removed]
>> >
>> > [Non-text portions of this message have been removed]
>> >
>> > [Non-text portions of this message have been removed]
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> > ____________
>> > The new Internet Explorer® 8 - Faster, safer, easier. Optimized for Yahoo!
>> > Get it Now for Free! at http://downloads.
>> > <http://downloads.
>> > yahoo.com/ca/
>> >
>> > [Non-text portions of this message have been removed]
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> > [Non-text portions of this message have been removed]
>> >
>
>
>
>
>>
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