Tig
join:2006-06-29
Carrying Place, ON Reviews:
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| reply to george357
Re: Need advice on a small water-powered electrical system? Any updates?
My .02
I've never though a car alternator to be suited to this type of application. While they are powerful, 60A in some cases, they require a lot of RPM. Even at minimal operation, a car idles around 900 rpm. Now multiply that by the pulley gearing, roughly 3:1. So 900 rpm x 3 = 2700 rpm for minimal output. To get 60A I would expect that you'd need more than idle rpm, say 3000 rpm x 3 = 9000 rpm at the alternator. Regardless as to how the numbers play out, the max end result is 60A x 12V = 720W |
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 george357ius ad arma spondent libertasPremium
join:2009-09-18
Candler, NC
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| said by Tig:Any updates?
My .02
I've never though a car alternator to be suited to this type of application. While they are powerful, 60A in some cases, they require a lot of RPM. Even at minimal operation, a car idles around 900 rpm. Now multiply that by the pulley gearing, roughly 3:1. So 900 rpm x 3 = 2700 rpm for minimal output. To get 60A I would expect that you'd need more than idle rpm, say 3000 rpm x 3 = 9000 rpm at the alternator. Regardless as to how the numbers play out, the max end result is 60A x 12V = 720W
He has got his catch basin built and some of the pipe run, but thats it so far. He is talking more along the lines of the original generator idea now so I am not sure what he is going to implement.
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| reply to Tig
Here are some alternators which put out over 300 amps: »www.pearlandalternator.com/school_bus.htm |
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