I continue to enjoy my "pico" hydro system providing a "trickle" charging capacity for my off grid cabin. My axial flux generator project is ready for casting,...
John: Thank you for your message, I am quite interested in your "trickle" charging capacity of your "pico" hydro system detailed description of it. Can you...
Nando
nando37@...
Jan 6, 2009 3:22 pm
10668
It is tiny and has been scoffed at as not capable of delivering any power and inefficient. However, here in WA state in the Winter when we have the equivalent...
JAN: Thank you for the info unhappily you do not inform how much current and battery voltage, indeed a low current charger does the job if time is not a...
Nando
nando37@...
Jan 6, 2009 3:23 pm
10670
I'm trying to find the Micro-Hydropower Sourcebook by Allen Iverson in pdf format. I can't find either a pdf or print version available. I think it used to be...
I am very interested in your pico hydro system, and I would realy appreciate it if you can direct me to pictures and or data. Thanking you in advance for your...
Battery voltage is 12VDC (3 pairs of 6VDC). There are connectors every 100' that reduce the diameter to something more like 7/8", no elbows to the nozzle,...
Jan: The voltage open circuit is too high what is FWIW ? The current seems to go with my calculations you are using around 1 GPM -- may be a bit more because...
Nando
nando37@...
Jan 6, 2009 3:24 pm
10674
CORRECTING: A 4 inch turbine with about the 200 feet head, should be operating around 3000 to 3200 RPM, too great GENERATED VOLTAGE for your needs -- BUT what...
Nando
nando37@...
Jan 7, 2009 7:16 pm
10675
Vrindaranya, I have a printed M-H-S. I think that does not available in .pdf format. Try to contact SKAT organization at Switzerland (info@...;...
Re: Google Project 10^100 ideas: Voting is on Jan 27, 2009 Vote for Ideas, Now there is less than a month to vote for Google 10^100 ideas contest submissions. ...
I'm an engineering student in Ireland currently doing a project on a small kinetic energy turbine. I'm wondering that if there is any simple way to calculate...
We make turbines which are designed to directly run machines and needed a way to accuately measure power output without having to generate electricity. We were...
What is your name ? Since it is a student project then, question : do you know the formula for Torque ( metric and British) If so, do write both down and send...
Nando
nando37@...
Jan 10, 2009 9:39 pm
10680
You would need to know the total power output by this small turbine in order to calculate the Torque and knowing just the rotational speed from P=Tw Failing...
sdgregory@...
Jan 10, 2009 9:40 pm
10681
Hi "student", ... Of course there is a simple way. It derives from basic physics. You need to know the rotational velocity, and the mechanical power. You ...
Greetings to all in this group! I am hoping that someone can give me some direction for putting together a very small scale hydro project. Here's my...
THIS QUESTION is a classical one that periodically appears every time the winter and the rain starts in an area of the World called EARTH. Even though you are...
Nando
nando37@...
Jan 11, 2009 2:45 pm
10684
Hi all: I'm a newbie but have been reading all of your messages, questions and answers for about a month now. I'm convinced that if there is an answer to our...
Hi Richard, take a look at the link on free flow turbines: http://www.treehugger.com/files/2008/04/verdant-power-free-flow-underwater-t urbines-hydro.php ...
If we do the math, 100" of rain on a 5,000 sq foot roof (and you didn't say how big the roof is)=41,666 cubic feet or 311,683 gallons per year. If you figure...
The in stream turbines that I am familiar with such as the Ampair do not make as much electricty as you need. Also, irrigation rights DO NOT equal hydropower...
Hi "hbsoulsurfer", ... Complementing Nando's answer: It depend of course on the size of your roof, and the head you could achieve between the tank water...
Hello Group - I'm seeking some help I am trying to install an off grid hydro system for a local town. They have a couple of 3-phase 15 hp pumps that have huge...
Distance is ~ 30' using 10 guage stranded copper wire for hookup to batteries. RPM under load is much, much slower as would be indicated by the much smaller...
It is built from an ESD 4" pelton wheel available from: AltE"Making Renewable Do-able"http://www.altEstore.com/Tel: 877.878.4060 x107 or +1.978.562.5858...
I have had this design for a "water motor" floating in my brain for a year or more. It's floated so long, I've been researching the net to find an example of...
Hello, A bike brake disk !! Why i don't think a that simple way before !! Thanks a lot for the idea. I have some disk in stock with hydraulic command. The...
Gary, You might want to use a 'soft start controller' http://www.danfos.info/content/files/MCI_Soft_start_motor_controller.pdf Bob Maginnis ... From:...
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