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sdowney717
09-09-2006, 05:13 PM
BATTERY POWERED CARS & THE CASE FOR THE SERIAL HYBRID

http://www.ecoworld.com/Home/articles2.cfm?TID=373

Combine that with fast charge lithium batteries
Toshiba Develops Fast-Charge Lithium-Ion Battery
http://www.evworld.com/view.cfm?section=communique&newsid=8033


Anyway what is the feasability of a boat with an onboard generator charging batteries. The batteries then power an electric motor which moves the boat.
The suggestion in the article was this serial hybrid would work well for cars, how about for a power boat like in the 40 foot range?

Or perhaps forgo the generator option and simply use the fast charge lithium batteries for an electric motor to move the boat. I have been wondering if the boat would require too much power to make this work.

also this
http://www.technologyreview.com/NanoTech-Materials/wtr_15920,318,p1.html

group talk on electric car future
http://groups.google.com/group/alt.energy/browse_frm/thread/28ef70e5d9435d9e/afa68de8b8ea14e5?lnk=st&q=&rnum=3&hl=en#afa68de8b8ea14e5

Ken Hutchins
09-09-2006, 05:24 PM
First things first, those Del and a few other pooters have Lithium-Ion batteries that are blowing up.:eek: Not something I would want to be out in a boat with. Ya maybe they can make them so they won't blow up someday.:confused:
As for me hang a few rags on a stick and let the wind propell the boat.:)

Katherine
09-09-2006, 05:40 PM
Didn't Spark burn to the waterline?

Bruce Taylor
09-09-2006, 06:18 PM
http://members.ozemail.com.au/~storerm/Solarboat/Mundoo3murraycliffs.jpg

Remember this one, from the cover of WoodenBoat? It's runs on batteries charged by solar panels. On what Duck Flat calls a "reasonable summer day" the system "breaks even" at 4.5 knots (that is, solar output matches energy consumption at that speed).

Of course, that's a "reasonable summer day" in Australia. :)

Gary E
09-09-2006, 06:34 PM
Anyway what is the feasability of a boat with an onboard generator charging batteries. The batteries then power an electric motor which moves the boat.
The suggestion in the article was this serial hybrid would work well for cars, how about for a power boat like in the 40 foot range?



SD... Your Egg needs aprox 200 HP from each engine to make it do what it does, and that boat is very underpowered with only twin 200's.

Now, go look at any 100 HP electric motor, any motor, DC, AC...and if you swing both ways...AD/DC and measure it. THEY WONT FIT IN YOUR BILGE ...now try to imagine a 100% improvement in delivering that power to your wheels, that's what the twin 100 HP electrics will require... It WONT HAPPEN Now even if in your pie in the sky world you can make it happen... where are you gona get the electric power??...a long extension cord???? or a nuk reactor in the bilge???

orphan314
09-09-2006, 06:40 PM
I'm currently building a Frank Paine design with a 48 volt diesel generator powering a 48 volt electric motor with a battery bank absorbing the excess power. The Generator shuts off when the battery bank is full and starts up automatically when the battery bank reaches 50 %. The boat displaces 10,000# and should burn about .333 gallons per hour @ 5 knots. The generator is only 6K so it wouldn't be powerful enough to "quik charge the lithium ion batteries you speak of.

Milo Christensen
09-09-2006, 07:02 PM
Didn't Spark burn to the waterline?

My CRS is acting up tonight, but wasn't the fire on Spark due to solvents on deck or something like that? I don't remember for sure, but I doubt the fire was caused by a problem with the electrical systems

sdowney717
09-09-2006, 07:42 PM
http://en.wikipedia.org/wiki/Wardenclyffe_Tower
check out this wild idea of Tesla.
Use a tower to send electricity wirelessly.
I find it quite fascinating reading.

http://www.world-mysteries.com/doug_teslat.htm

Anyone ever heard of it?

sdowney717
09-09-2006, 08:03 PM
Gary
100 HP motor on ebay

The unit has a four bolt base and the length overall is 29.5" by 25" wide by 22" high.
Something like this would definitely fit!
But I am not saying it would work.

http://cgi.ebay.com/100-HP-AC-3-Phase-Electric-Motor_W0QQitemZ230026263945QQihZ013QQcategoryZ4292 2QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

LeeG
09-09-2006, 08:39 PM
do the math

Mrleft8
09-09-2006, 08:55 PM
MUST we bring up serious boat related subects here in the bilge? PLEASE!!!!!! Let's TRY to keep it undignified!!!!!

Paul Pless
09-09-2006, 10:54 PM
My CRS is acting up tonight, but wasn't the fire on Spark due to solvents on deck or something like that? I don't remember for sure, but I doubt the fire was caused by a problem with the electrical systems

a container of gasoline stored near a portable generator that did it I think.

Twas a beuatiful boat.:(