Dear Adrian,
I think that it would be worthwhile to investigate
this possibility.
The questions of start up torque for the compressor
and a control system (if any) would have to be
addressed. I had no problem starting a small
compressor with my Watermotor model 90 with 18m meters
of head. The model 150 would have about twice as much
torque with the same head. But how would we be able to
know if it would start a 1.5--2.5 h.p. compressor?
What about a compression release like I had on a big
Stihl chainsaw? Do we have any refrigeration experts
around here?
--- Adrian Banie Lasimbang <[EMAIL PROTECTED]> wrote:
> Dear Ron,
>
> The concept for using micro hydro tubine to run
> directly refrigerator
> compressor is very interesting. we have two micro
> hydro system installed in
> the remote villages in Borneo both with 5 kw
> capacity and we are looking at
> improving the socio economic income of the
> communities.
>
> these communities are still active hunter gatherers,
> however thier main cash
> income is from selling fish and bush meat. currenly
> they are selling the
> fish and bush meat to middleman which offers very
> low price. the community
> have no choice but to sell this meat or fish because
> they have no place to
> keep it. so in order to get enough cash to send
> thier children to school,
> they have to fish and hunt more and this gives great
> presure to thier
> limited resources.
>
> we are thinking if someone can help us to design the
> freezer, we can build
> in the community so that they have more bargaining
> power or even marketing
> their fish and bush meat directly in the towns.
> would appriciate if you can
> help us to link with publications or interested
> party to help us with this
>
> Cheers
>
> Adrian Lasimbang
> Sabah, Borneo
>
> ----- Original Message -----
> From: "davis ron" <[EMAIL PROTECTED]>
> To: <[email protected]>
> Sent: Saturday, October 08, 2005 8:05 PM
> Subject: Re: [microhydro] Re:> Refrigeration
> compressor directly driven by
> Microhydro
>
>
> >
> > > Refrigeration directly
> > > driven by microhydro turbines
> > >
> > > Microhydro turbines would be a practical means
> to
> > > directly drive mid-size refrigeration
> compressors
> > for
> > > walk-in refrigerators in remote areas,
> especially
> > > where there is no electricity.
> > > This would be a way to keep local food and
> produce
> > > fresh until it could be used or taken to market,
> > such
> > > as fish. It would also upgrade the local diet.
> > > It would mean that local people wouldn't have to
> eat
> > a
> > > whole cow a day or two after it is killed, as
> now
> > must
> > > be done in warmer areas. I think that from one
> to
> > 2.5
> > > h.p. would be sufficient for this.
> > > A turbine has very high start-up torque--good
> for
> > > running compressors. The refrigeration box could
> be
> > a
> > > prefab made from styrofoam blocks with
> galvanized
> > > sheet metal glued on the outside, and assembled
> on
> > > site.
> > > Inside lights and an air circulation fan could
> be
> > run
> > > by electricity from a car alternator.
> > > I think that such a unit could go a long way
> toward
> > > making some rural areas more self reliant and
> > > improving diet.
> > > Anyone interested?
> > >
> > > Ron Davis, watermotor.net
> >
> >
> >
> >
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