In the early years of the Catalina 30 powered by the 5411 raw water cooled Universal engine, the engines supplied failed because they were not properly built for marine use.
If water cooled, it is best to use a heat exchanger, this extends the engine life.
The major problem with the 5411 was the use of steel freeze plugs that would rust out quickly and gave the potential of the boat sinking. The standard marine setup uses bronze freeze plugs. The exhaust needs to be insulated or jacketed. The electronic components need to have sparking components contained to reduce ignition hazards. A complete list can be obtained from the USCG on the web.
The use of 3phs AC motors as generators is documented here, Please note that no magnets are used in this system. The cost of the system should be far less than a permanent mag generator would be. In most cases the residual magnetism will charge the capacitors, and when this is not the case a start switch to charge the capacitors works well.
http://www.dlnet.
Investigation of self-excited induction generators for wind turbine applications
is how I loaded the Google search engine window should the link not work however I tested the link by pasting it into the browser address bar and it worked, so should for anyone wanting this information.
You can control the output with a resistive load, but should not be needed for the application discussed here.
You can feed an inverters internal buss with a rectified DC output, thus protecting your electronics by assuring a regulated output.The governor on your engine will keep the RPM in line, so the voltage will be limited unlike this article.using transformers the output can be reduced to 110, however cost may be lower just getting an inverter with 220v output.A note:
Many surplus industrial UPS systems are 220V but may be hard to find.
I will answer questions but take into account my posting history. I am out of service much of the time.
I scan the post but don't read them all due to time limits. You can send any question to postmaster@imnugget
Kevin
http://simplyrv.
For RV information
--- On Mon, 7/20/09, Chris Witzgall <chris@witzgall.
From: Chris Witzgall <chris@witzgall.
Subject: Re: [Electric Boats] Re: The missing link in "affordable" diesel electric
To: electricboats@
Date: Monday, July 20, 2009, 2:19 PM
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. com> wrote:
>
>
>
>
> 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 waterline. net
>
> http://www.propulsi onmarine. com
>
> --- In electricboats@ yahoogroups. com <mailto:electricboa ts%40yahoogroups .com>
> , "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@ yahoogroups. com
>> <mailto:electricboa ts%40yahoogroups .com>
>> [mailto:electricboa
>> <mailto:electricboa ts%40yahoogroups .com> ]
>> > On Behalf Of Colin Girvan
>> > Sent: Friday, July 17, 2009 11:22 AM
>> > To: electricboats@ yahoogroups. com <mailto:electricboa ts%40yahoogroups .com>
>> > 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. rr.com> com> wrote:
>> >
>> > From: Alycia & Kevin Miller-Lynch <ak@... <mailto:ak%40twcny. rr.com>
>> > com>
>> > Subject: RE: [Electric Boats] The missing link in "affordable" diesel
>> > electric
>> > To: electricboats@ <mailto:electricboa ts%40yahoogroups .com> yahoogroups. com
>> > 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 ts@ yahoogroups. .
>> > 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/internetexplo rer/>
>> > yahoo.com/ca/ internetexplorer /
>> >
>> > [Non-text portions of this message have been removed]
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> > [Non-text portions of this message have been removed]
>> >
>
>
>
>
>>
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