Home Brew Hydro: A small hydroelectric project: alt.energy.homepower archives. These guys helped me out A LOT |
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Home Brew Hydro Saga MK I: Early turbine and generator MK II & III: New alternator and couplers MK IV: shaft bearing and real world use Coanda Effect water intake (New Rain Update!) alt.energy.homepower discussion
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Full plain text message | Fixed font - Proportional font Subject: home bru hydro update: so far so good Author: z Date: 21 Mar 2008 http://www.jeffersonfreestate.org/hh/ The beast is on its first real long term test. 4 hours running and counting. Mechanically we're good. I came up with a pretty sweet shaft stabalizer and bearing solution and its running full bore with very little vibration compared to before. I drove the 60 miles to pick up those Centennial batteries i ordered and the guy said they quit selling them and gave me the choice of 'werker' l16s or trojans. The werkers were like 60 bucks cheaper a pop and weighed about the same. Needless to say I couldn't afford the good batteries so i went with them. so far so good. they 'werk' You guys know i'm a novice at this stuff and finally figured out I couldn't ever get the damn altnerator to spin fast enough to produce more than 12 volts.. so unless the batteries were seriously low I couldn't charge. I did some reading and with two six volt batteries hooked together I wired the hydro into one of the six volters.. sending about 10 volts into it. Like magic the system started charging. I've read this is OK but i'd much rather do it right. Today I ran the hydro at full bore and watched my pond.. it didn't even blink.. still over flowing, so clearly I can increase the pipe size at least during the winter. Thats on my list.. take what i've done and dump way more water and add jets and increase the RPM on that alternator. For now its good. I still can't tell exactly how much power is being produced. Like I say on the web page I ran off the battery bank all last night so I was down to 11.4 (according to the xantrex c40 monitor) and tonight I'm just running the hdyro. Its been four hours and now i'm reading 12.4 so its doing something good. These are 2 six volt l16 equiv batteries. Also finally you get the drag on the alternator when you hit the 'on' switch.. it drags down bigtime. I was such an idiot before thinking that producing 11.5 volts would charge a 12 volt battery.. DOH! thats a newbie for ye Thats all for now. Thanks again for all the advice. I'm sure my system isn't the best but thanks to you all its much better than it would have been without you. -zachary
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