Chip
Do you live on this property or is this a camp of
some kind. Does it have commercial power? Why do you
want to do this? I have lived with off grid hydro
power for 10+ years. My site runs on 15gals/min but
has 185 ft of head. I am always happy to show it off.
Live across the lake from Burlington VT-just E-mail me
and I can give you directions. Although it would be
nice to have more information from you I would
question whether you have a practical hydro site. If
you can only depend on 20 gal/min you only have an 80
watt output. Given the half mile distance from your
house and the challenges that go with that the
economics look tenuous. Perhaps economics are that
important to you and I can relate to that, but I think
some discussion of your alternatives might be a good
idea.
Peter N. Allen---
[email protected] wrote:
>
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>
>
> There are 5 messages in this issue.
>
> Topics in this digest:
>
> 1. Re: AC vs. DC microhydro
> From: "Mike Barnett"
> <[EMAIL PROTECTED]>
> 2. Re: Topographic digital maps of the Dem.
> Rep. of Congo
> From: "edjesharp" <[EMAIL PROTECTED]>
> 3. Long distance hydro
> From: "chipbb03254"
> <[EMAIL PROTECTED]>
> 4. Re: Long distance hydro
> From: "Nando" <[EMAIL PROTECTED]>
> 5. Re: Long distance hydro
> From: "H2MJD" <[EMAIL PROTECTED]>
>
>
>
________________________________________________________________________
>
________________________________________________________________________
>
> Message: 1
> Date: Mon, 28 Feb 2005 23:55:12 -0600
> From: "Mike Barnett" <[EMAIL PROTECTED]>
> Subject: Re: AC vs. DC microhydro
>
>
> Rob, Hugh or others, can you recommend a
> rrrrrrrreally good list where I can
> learn more of the pros and cons of various devices
> (inverters, controllers)
> in the ren. energy industry, without drifting too
> far off topic? You both
> have years on me in tweaking so much!! :-) Where is
> it possible to find out
> more, than just the average "connection" issues?
>
> Mike
> JAMAICA
>
>
>
> ----- Original Message -----
> From: "Hugh" <[EMAIL PROTECTED]>
> To: <[email protected]>
> Sent: Tuesday, February 15, 2005 2:22 AM
> Subject: Re: [microhydro] AC vs. DC microhydro
>
>
> >
> >
> > At 8:40 PM -0800 14/2/05, Rob Linschoten wrote:
> > >I am running a small (300W) crossflow turbine
> using a 1 hp 240V 3
> > >phase Hyundai TEFC motor wired 1C-2C (about 800
> feet from the
> > >battery, then stepped down to 60VDC via a toroid
> transformer,
> > >rectifier assembly and about 24,000MF of
> capacitance) and into an
> > >Outback MX60 MPPT controller to charge a 48VDC
> bank. Works like a
> > >charm. The MX60 finds the sweet spot for the
> turbine at any given
> > >head/load. I have a diverter on the 240VAC side
> set to 260VAC in
> > >case the MX60 "lets go" during the float cycle.
> >
> > This sounds very expensive? What sort of
> efficiency are you getting,
> > do you know?
> >
> > Many people also use the MX60 as a step down
> converter so as to get
> > high line voltage (max 140V). But this makes more
> sense for lower
> > voltage batteries. In your case it appears to be
> used purely for
> > speed matching. This could more cheaply be
> achieved by tweaking the
> > C-2C capacitor sizes when you alter the flow (or
> for gross changes in
> > battery voltage), if it seems worth it. You can
> usually find a good
> > all round value for the capacitance (and hence
> speed) to suit all
> > flows and loads, if the pipe and wires are big
> enough.
> > --
> > Hugh
> > http://www.scoraigwind.co.uk/
> >
> >
>
> >
> >
> >
>
>
>
>
>
>
>
________________________________________________________________________
>
________________________________________________________________________
>
> Message: 2
> Date: Tue, 01 Mar 2005 05:35:17 -0000
> From: "edjesharp" <[EMAIL PROTECTED]>
> Subject: Re: Topographic digital maps of the Dem.
> Rep. of Congo
>
>
>
> Willy, I'd say that your best bet would probably be
> (www.terraserver.com).
> I don't know if the Congo is included in this site,
> but if it is, it
> would be a darn good starting place.
> edjesharp
> --- In [email protected], Willy Mwamba
> <[EMAIL PROTECTED]>
> wrote:
> >
> > Dear sirs,
> >
> > I am heading an engineering and design group
> called HydroForce. Our
> office has been elected by the Ministry of Energy of
> the Democratic
> Republic of Congo to run a study of electrification
> of the rural
> areas using mini hydro power.
> >
> > The big problem we are being faced with is the
> fact that there are
> no topographic maps of the Congo scaled 1/5000 to
> 1/10000 wich we can
> use to locate and select a site for the pilot
> projet.
> > We are not able to start the study because we are
> lacking important
> data like Head and Flow. A trip to Congo is at the
> moment impossible
> because of the insecurity in the region.
> >
> > Can someone tell me where I can find in internet
> digital
> topographic maps of this country?
> >
> > Your urgent help will be very much appreciated.
> >
> > Willy L. Mwamba
> > [EMAIL PROTECTED]
> >
> >
> > ---------------------------------
> > D�couvrez le nouveau Yahoo! Mail : 250 Mo
> d'espace de stockage
> pour vos mails !
> > Cr�ez votre Yahoo! Mail
> >
> > [Non-text portions of this message have been
> removed]
>
>
>
>
>
>
>
>
>
________________________________________________________________________
>
________________________________________________________________________
>
> Message: 3
> Date: Tue, 01 Mar 2005 19:13:20 -0000
> From: "chipbb03254" <[EMAIL PROTECTED]>
> Subject: Long distance hydro
>
>
>
> I have a potential micro hydro site in central New
> Hampshire. The particulars of my site
> are: a 40'� head, a flow rate between 20 GPM and 100
> GPM, and a distance of 2500'�
> between the wheel and the home. I have gotten some
> good advice so far but can always
> use more. Penstock materials/wheel
> types/generators/batteries
=== message truncated ===
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