Home |
Search |
Today's Posts |
#11
|
|||
|
|||
On Mon, 09 May 2005 16:02:42 GMT, (Mic) wrote:
On Mon, 09 May 2005 00:04:26 -0500, Richard J Kinch wrote: Mic writes: Hey larry: Got the shaft driven alternator image, you made that LIVE.... A Larry Repost: Date: 27 Jan 2004 05:10:53 From: Larry W4CSC Subject: Bike powered alternator to charge The very-fast-turning car alternator is the wrong one..... Aboard "Lionheart", a French-made Amel Sharki 41' cruising ketch, one of the ways we recharge its two banks of 700AH batteries is with a "shaft alternator". This slow-turning alternator puts out about 20-25A of DC when turned by the free-wheeling driveshaft as the sailboat's prop is dragged through the water at about 8-11 knots by the sail power. These alternators are designed to run MUCH slower than car alternators, and probably more important to the poor pedaler, they are more efficient, designed to run off minimal drive power that is available. Here's a good article on shaft alternators your bike would have no problem powering, right off the pedaled wheel: http://www.sailnet.com/collections/a...eid=ouread0028 We also use a Windcharger, a solar panel on the cockpit's hard top, and 70A and 125A alternators driven by the Perkins 4-108 4-cyl 50hp main propulsion diesel engine. Power-R-Us to run radar, chart plotters, computers, lighting, water pumps, bilge pumps, microwave oven, fans, and an extensive electronics navigation suite I've installed since bringing her to Charleston from Satellite Beach, FL. I just got through installing an 802.11b wireless broadband router to interface the computer with the NMEA data network without dragging a cable around the boat. You can lay in your beanbag on deck and navigate with the software on the laptop....(c; THIS is livin'! XXXXXXXXXXXXX What make and type of shaft alternator do you have? Did you make any mods to it? I know of Canadian company that makes mods to alternators for this shaft type driven system, but mucho$$. Presently cant find the link. http://www.tor.cc/articles/energy.htm THE INTEGRATED ENERGY SYSTEM The Optimum Electrical Power System for the Cruising Sailboat http://www.solarwindwater.com/ http://www.bagelhole.org/section.php/Energy/ http://www.scoraigwind.com/index.htm Offers a school to teach you how to build a wind genny http://www.cbel.com/wind_energy/ All kinds of links http://www.tlgwindpower.com/tips.htm WIND ENERGY CAN BE AFFORDABLE with low cost high output blades Tips and Tricks for building your own Generator A quote from someone (not me) " All joking aside, I used an alternater from a 350 Chev engine (That is what the auto parts shop told me), big mistake and great learning experience. I can pedal for about 2 minits with the alternater spinning at just over 1800 RPM (it cuts in at 1340 RPM). " If you have an outboard with this shaft system doesnt apply, but mods to a small HP lower unit may work. If you do a serch on electric boats is amazing what mods they make. Heres a link to an alternator (car size) mounted to a outboard. Very cool and great idea...... http://www.geocities.com/grampi2000/sidealt.jpg http://www.geocities.com/grampi2000/altnocap.jpg http://www.geocities.com/grampi2000/birdalt.jpg http://www.geocities.com/grampi2000/electric.html http://www.geocities.com/grampi2000/electric2.html If Frank E. Stein had a wife what would her 1st name be? (Hint: it relates to the mods in this thread) |
#12
|
|||
|
|||
Larry this is the link I was looking for: http://ca.geocities.com/the_spartina/gear/real3.htm GEAR: John's Prop Shaft Alternator review http://www.hamiltonferris.com/2.html#Alternators POWERMAX High Output Alternators charge batteries up to 5 TIMES FASTER than standard alternators. This means drastically reduced engine running time, saving fuel, engine wear, and noise. A standard "automobile-type alternator is designed only to replace the minimal engine-starting draw. When you use an alternator what about the power it uses to energize the "fields"? How many amps is that? BTW thank for the effort. |
#13
|
|||
|
|||
Mic writes:
Water moving horizontally at 10 knots equals about a 4 foot static head pressure. If you figure out how to economically generate power from that, get a patent, because there is endless tidal energy available at that differential. Well I have re-research this concept and am providing the following links: Some clever improvisations, but none that are economical in terms of $/kW-hr. |
Reply |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
electrical drain | Electronics | |||
Fishfinder??? | ASA | |||
Steel hull - electrical ground | Electronics | |||
Steel hull - electrical ground | Cruising | |||
Electrical problem | Electronics |