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Re: [microhydro] Flyweel design

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  • Mike
    Hi! Thanks a lot for all your suggestions.Conclusion is: TRIACs are the main problem in my case. Due zero crossing! Regards, Mike On 30 Mar 2007 16:33:50
    Message 1 of 12 , Mar 30, 2007
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      Hi!
      Thanks a lot for all your suggestions.Conclusion is: TRIACs are the main
      problem in my case. Due zero crossing!
      Regards,

      Mike

      On 30 Mar 2007 16:33:50 -0700, Michael Lawley <ecoinn@...>
      wrote:
      >
      > Hi,
      >
      > Yes, I was not advocating the use of a mod sine wave inverter; some
      > electronic controlled devices will just not work on a square wave.
      >
      > Pure sine wave inverters retail here from $1900 NZ for 3kW about US1400,
      > and
      > you will have no problems. We power our entire house off one including
      > electronic dishwasher, fridge, freezer, computers etc - It is the way to
      > go.
      >
      > Your battery bank is also on the small size for a 3KW inverter at 12 volt.
      > We base hydro battery bank storage on 1/3 of your daily generation. This
      > is
      > 350 x 24 = 8.4 kWhrs. Therefore, we would recommend a useable storage to
      > 50%
      > charge of 2.8 kWhrs.
      >
      > This would be about 3 times the battery size you have, otherwise you will
      > have significant voltage sag, low voltage tripping and the high current
      > draw
      > will damage the batteries. We would in your case go for 4 x 12v/200 Ah
      > batteries in series and use a 48vdc system, this will keep your cable
      > sizes
      > down, smaller fuses, and generally work much better.
      >
      > Regards
      >
      > Michael Lawley
      >
      > Renewable Energy Engineer
      >
      > EcoInnovation
      >
      > EcoInn/EcoBach
      >
      > 671 Kent Road
      >
      > R.D.1
      >
      > New Plymouth
      >
      > New Zealand
      >
      > Phone: (NZ) 06 752 2765
      >
      > Fax: (NZ) 06 7522768
      >
      > Web site: <http://www.ecoinnovation.co.nz/> www.ecoinnovation.co.nz or
      > www.ecoinn.co.nz <http://www.ecoinn.co.nz/>
      >
      > <http://www.ecoinnovation.co.nz/pdf/Customer_comments.pdf> Customer
      > Comments 50 kB PDF
      >
      > email: michael@... <michael%40ecoinnovation.co.nz>
      >
      > _____
      >
      > From: microhydro@yahoogroups.com <microhydro%40yahoogroups.com> [mailto:
      > microhydro@yahoogroups.com <microhydro%40yahoogroups.com>] On
      > Behalf Of Mike
      > Sent: Saturday, 31 March 2007 12:57 a.m.
      > To: microhydro@yahoogroups.com <microhydro%40yahoogroups.com>
      > Subject: Re: [microhydro] Flyweel design
      >
      > Yes! I have a 12V/200Ah AGM battery and a modified sine wave inverter
      > 3000W.
      > The inverter is not capable to work with a freezer that have an electronic
      > thermostat (compressor is switch ON and OFF through a thriac). I have a
      > fridge with a mechanical thermostat that is working well. This is the
      > reason
      > that I want to work with a flyweel! You have an ideea why the system is
      > not
      > working?!
      >
      > Regards,
      > Mike
      >
      > On 3/27/07, Michael Lawley <ecoinn@paradise.
      > <mailto:ecoinn% <ecoinn%25>40paradise.net.nz> net.nz> wrote:
      > >
      > > Have you considered an inverter based battery system? You will only need
      > > a
      > > couple of truck batteries/inverter/regulator and you will then have kW
      > of
      > > surge capacity and can run other large loads.
      > >
      > > Regards
      > >
      > > Michael Lawley
      > >
      > > Renewable Energy Engineer
      > >
      > > EcoInnovation
      > >
      > > EcoInn/EcoBach
      > >
      > > 671 Kent Road
      > >
      > > R.D.1
      > >
      > > New Plymouth
      > >
      > > New Zealand
      > >
      > > Phone: (NZ) 06 752 2765
      > >
      > > Fax: (NZ) 06 7522768
      > >
      > > Web site: <http://www.ecoinnov <http://www.ecoinnovation.co.nz/>
      > ation.co.nz/> www.ecoinnovation. co.nz or
      > > www.ecoinn.co.nz < http://www.ecoinn <http://www.ecoinn.co.nz/> co.nz/>
      > >
      > > <http://www.ecoinnov
      > <http://www.ecoinnovation.co.nz/pdf/Customer_comments.pdf>
      > ation.co.nz/pdf/Customer_comments.pdf > Customer
      > > Comments 50 kB PDF
      > >
      > > email: michael@ecoinnovati <mailto:michael% <michael%25>40ecoinnovation.
      > co.nz> on.co.nz
      > <michael%40ecoinnovation.co.nz>
      > >
      > > _____
      > >
      > > From: microhydro@yahoogro <mailto:microhydro% <microhydro%25>
      > 40yahoogroups.com> ups.com
      > <microhydro%40yahoogroups.com> [mailto:microhydro@yahoogro
      > <mailto:microhydro% <microhydro%25>40yahoogroups.com> ups.com
      > <microhydro%40yahoogroups.com>]
      > > On
      > > Behalf Of mihaihlb
      > > Sent: Tuesday, 27 March 2007 10:07 p.m.
      > > To: microhydro@yahoogro <mailto:microhydro% <microhydro%25>
      > 40yahoogroups.com> ups.com
      > <microhydro%40yahoogroups.com>
      > > Subject: [microhydro] Flyweel design
      > >
      > > I have install a small turgo turbine (PMG)that deliver max.350W
      > > @230Vac 50-60Hz. It can not start a freezer that has the peak power
      > > absorbtion of 310W (during first stage -when the compressor start
      > > working) and then drops and stabilize at 82W.
      > > 1. I guess that the ELC can not transfer the power from dummy load to
      > > the appliance very quick (time to long of response of ELC).
      > > 2. I guess the I need to install flywheel on the top head of the
      > > turgo PMG generator. I have no ideea how to desing such of flywheel.
      > > Can anybody give me some help? Thx in advance!
      > >
      > > Regards,
      > > Mike
      > >
      > > [Non-text portions of this message have been removed]
      > >
      > >
      > >
      >
      > [Non-text portions of this message have been removed]
      >
      > [Non-text portions of this message have been removed]
      >
      >
      >


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