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Hydro Power
By Nick5065, Section Water Posted on Sat Nov 24th, 2007 at 05:52:32 PM MST
Question

I have a year round creek that I use for irrigation. I run the creek into a 1,500 gallon storage tank which outlets to a 3 inch water line that drops 50 feet elevation to house.
My questions are: Is it possible that I could use the same water source since there is alot of pressure that comes down into this line to use as a power source?
Any information or ideas would be truly appreciated.

Hydro Power | 9 comments (9 topical, 0 editorial)

Re: Hydro Power (3.00 / 0) (#1)
by etownlax on Sat Nov 24th, 2007 at 11:19:15 AM MST
(User Info)

I don't know much about Hydro power but I do know you'll deffenitly will need to know how much water flows in a minute or hour. That way you or others can then determine if this is even a possible source of energy. With 50 feet though. A little flow can go a long way specially if it runs 24/7.

So conclusion... Need a little more information.

-Randy

Re: Hydro Power (3.00 / 0) (#2)
by ebby1234 (bob@alternativeenergysuppliesuk.com) on Sat Nov 24th, 2007 at 11:45:04 AM MST
(User Info) http://www.alternativeenergysuppliesuk.com

Look on my website allternativeenergysuppliesuk.com there are some turbines on there to give you ideas

Re: Hydro Power (3.00 / 0) (#3)
by spinningmagnets (velmis1450bc(at)aol(dot)com) on Sat Nov 24th, 2007 at 03:39:38 PM MST
(User Info)

I haven't built anything yet, but based on what I've read...

I seem to remember needing about 100 feet of head to make a turbine useful. With low head, you'd be stuck with some type of wheel.

50 feet of head is right about where you could get some useful work from a Pelton or Turgo.

http://www.fieldlines.com/story/2007/5/28/132256/790

Did you want to charge a battery (if so, what voltage?), or use the electricity directly? One of the benefits of hydro is that when it's "on" it can provide a steady flow.

Re: Hydro Power (3.00 / 0) (#4)
by Ganderwings on Sat Nov 24th, 2007 at 07:37:30 PM MST
(User Info) http://www.fight-4-truth.com

Hello Nick,
You wrote: "since there is alot of pressure that comes down into this line"
I take you are talking about the pressure above the storage tank or perhaps your 50 foot 3" line? In any case it is obvious that every foot counts in hydro power.
I would hike up the hill along the creek and count my footage 'til my wallet says stop. Then I figure the hydro head and definitely would use a most efficient crossfolw turbine for the job. Also remember the higher you go the more water volume the 3" line is sucking, hence it will depend on the water volume of the creek and head incl. friction which would give you the size of the penstock.

Punch in my website or erwin badertscher click index just below the picture and choose. My Crossflow designs and how to calculate the size of runner and blades you'll find in the Alternative energy page.

ERWIN

Re: Hydro Power (3.00 / 0) (#5)
by bigdan on Sat Nov 24th, 2007 at 08:07:21 PM MST
(User Info)

Hello Nick, A few questions first. How large is creek? How much total fall in feet could you use? Three inch line full of water has some possibilities,but a 4,5,or 6,etc inch full of water would have much more generating power. More information, pictures, etc. would help get the answer you want.Picture or two might help.
You do have a possible source of power. Good Luck and Have Fun.Bigdan

Re: Hydro Power (3.00 / 0) (#6)
by Warren on Sat Nov 24th, 2007 at 09:30:20 PM MST
(User Info)

Hello,

As mentioned in the other comments, you need to find the total elevation drop, the length of line, diameter of line and the flow rate.

There is a spread sheet, either turgo.xls or pipedp.xls at http://h-hydro.com/turgo_drive.html which will calculate all the rest of the numbers to give you an idea of the power available.

Warren

Re: Hydro Power (3.00 / 0) (#8)
by feral air on Sun Nov 25th, 2007 at 09:45:37 PM MST
(User Info)

As mentioned in the other comments, you need to find the total elevation drop, the length of line, diameter of line and the flow rate.

As Nick already stated, the drop in elevation is 50ft and the pipe is 3" in diameter. All he needs to add (apparently) is the pipe length and the flow rate.

Nick, it sounds like the water coming down the pipe is used for irrigation so what you can do, and the energy you can extract, may be limited...

If you have sprinklers then they probably need a fair amount of pressure to work - if you extract too much energy then the sprinklers will just dribble. If you use "sweat" style hose you'd need some pressure too. If you use that flat hose with holes in it then you'd probably be fine but it may not shoot out anymore.

It may be better to leave the current system alone and install a second just for power. Especially if you can get more elevation or if it would take a new irrigation setup. Maybe.

That said, INAHG! (I'm Not A Hydro Guy) take it easy

[ Parent ]

Re: Hydro Power (3.00 / 0) (#7)
by alibro on Sun Nov 25th, 2007 at 03:17:58 AM MST
(User Info)

Why not build a wooden water wheel 6 or 7 feet diameter and let gravity do the work?

Alibro

Re: Hydro Power (3.00 / 0) (#9)
by byndhlpng on Fri Jan 25th, 2008 at 01:24:33 PM MST
(User Info)

duckrunner.com has plans for building a waterwheel.

[ Parent ]

Hydro Power | 9 comments (9 topical, 0 editorial)

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