Ram Air Wind Alternator - Page 5 - Fuelly Forums
Thread Tools Display Modes
Old 09-08-2008, 12:55 PM   #41
Registered Member
theholycow's Avatar
Join Date: Apr 2008
Posts: 6,624
Country: United States
Send a message via ICQ to theholycow Send a message via AIM to theholycow Send a message via MSN to theholycow Send a message via Yahoo to theholycow
I agree with your thoughts on weight of wheels. P&G is all about making energy as efficiently as possible, storing it, and using it gradually; EOC doubly so. Heavy wheels may be indicated for that, since they have no effect on RR or aerodynamic drag, only slowing you uphill (but acclerating you downhill).

The whole thing about rotating weight being worth more than dead weight is a myth, well-debunked by the few scientific minds in bicycling...but the message hasn't reached the automotive crowd yet.

This sig may return, some day.
theholycow is offline   Reply With Quote
Old 09-08-2008, 08:27 PM   #42
Registered Member
GasSavers_JoeBob's Avatar
Join Date: Oct 2007
Posts: 698
Country: United States
Originally Posted by onegammyleg View Post
Its just like this but runs on solar...

I used to have one of those vans ('cept mine said "Hartig Plumbing" on the side).

Looking again at the link I put with the Model A picture, when they were traveling at 20 mph the alternator was putting out 12 amps at 12 volts. That's with a 7 foot rotor on the front. They said beyond 20 mph things got really scary, I guess because they had a 7' gyroscope turning at right angles to the direction the car was traveling.

According to a book I own, "Producing Your Own Power" (1974, Rodale Press, Carol Stoner, ed.), it takes a 6' rotor in a 30 mph wind to generate 1kw. Assuming the average car alternator is around 85 amps (that was what was in my Lincoln, my Plymouth Voyager (junked) and Cadillac have 100 amp alternators, dunno what's in the Geo), the output is near 1kw. (12V * 85A = 1020 W). From this info I suspect you won't get enough power to run the alternator with anything you can put behind the grille...

"We are forces of chaos and anarchy. Everything they say we are we are, and we are very proud of ourselves!" -- Jefferson Airplane

Dick Naugle says: 1. Prepare food fresh. 2. Serve customers fast. 3. Keep place clean.

GasSavers_JoeBob is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Looks like the price you entered for a litre of gas is unrealistic. winstona Fuelly Web Support and Community News 6 05-12-2013 10:26 AM
Best Diesel in N. Texas? JudisJetta General Fuel Topics 7 05-28-2010 08:55 AM
Incorrect Milage Calcuatlion PatM Fuelly Web Support and Community News 4 07-17-2009 07:21 PM
Gallons per Mile? nerb Fuelly Web Support and Community News 1 11-12-2008 03:33 AM
Throttle spring...pedal vs RPM? ZugyNA General Fuel Topics 17 08-01-2006 04:17 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -8. The time now is 01:22 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.