[RE-wrenches] Hydro system
Michael Morningstar
mjmorningstar at gmail.com
Wed Jul 10 23:56:29 EDT 2019
Mac,
I work with hydro power plants from 50W to 100kw. AC direct, DC, AC to DC, stand alone and utility connected, in all sorts of configurations. Report back with the turbine manufacturer and more specifics so that I may better advise you. There are many routes one can take.
Clogging and sediment problems are usually a result of poorly designed intakes. Anything other than a Coanda design is going to be problematic. When I work on existing systems, thats the first place to make improvements.
Poorly designed penstocks create all sorts of negative phenomena.
I’ve always found generic formulas for estimating potential power output to be inaccurate. I gather data and then present it to which ever turbine manufacturer I think is suited for the project and let them determine the output.
Given the size you are describing, the turbine is probably made by Canyon or Hydro Stock (now out of business). Canyon’s engineers will be able to assist you in adding automation and control to such a power plant. I’m currently working to remove a PLC based control system designed by an electrical contractor that was intended to do what you describe. It was a well intentioned attempt but never really worked correctly.
Michael
> On Jul 10, 2019, at 8:23 PM, Mac Lewis <maclewis1 at gmail.com> wrote:
>
> I don't really want to mess with changing the hydro, I'm more interested in alleviating the manual transfer between power systems. I'm planning on putting a power quality recorder/oscilloscope so that I understand what type of power we are working with. Its semi-large (from my perspective) because I believe that they transmit at 11.4 kV and step it back down. That tells me that the penstock is long (and expensive). In some ways my post is premature, but the big question is can you have a largish hydro feed a load direct without storage (maybe there is a dynamic load bank or something like that? I like the idea of feeding batteries direct and letting the inverters make good quality power but I'm ignorant about hydro on this scale.
>
> I appreciate the ideas
>
> On Wed, Jul 10, 2019 at 9:11 PM Jerry Shafer <jerrysgarage01 at gmail.com <mailto:jerrysgarage01 at gmail.com>> wrote:
> This is from the web and its metric so dont get messed up. You need big GPM and big head (pressure) yes it is multiplied but 1 × anything is still 1, 2 x is not much better.
> Do you have any values yet, elevation change,
> Jerry
>
> On Wed, Jul 10, 2019, 8:00 PM <toddcory at finestplanet.com <mailto:toddcory at finestplanet.com>> wrote:
> isn't there a formula like head in feet X gpm divided by 10 = approximate wattage?
>
> todd
>
>
>
>
> On Wednesday, July 10, 2019 7:10pm, "Jerry Shafer" <jerrysgarage01 at gmail.com <mailto:jerrysgarage01 at gmail.com>> said:
>
> You need head (pressure) and GPM, clean degree free, no silt, a catch basin to stall the water, big pipe long run, try to keep the rollercoasters out, (rises), and no 90's, that's just to start. Low head waterwheels can produce lots of power to but you need a river of water.
> Jerry
>
>
>
> Sent from Finest Planet WebMail.
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> --
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> Mac Lewis
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> "Yo solo sé que no sé nada." -Sócrates
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Michael Morningstar
Morningstar Electric
PO Box 1494
Mount Shasta, California 96067
530-921-0560
CSLB 949635
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