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[microhydro] Re: Turbine efficiency

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  • Peter Ruyter
    Good to have you home agin! Peter Ruyter Cargo and Kraft Turbin AB S-739 92 SKINNSKATTEBERG SWEDEN Low-head-kaplanturbines 1,5-10 meters 300-1100 mm
    Message 1 of 8 , May 1, 1999
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      Good to have you home agin!

      Peter Ruyter
      Cargo and Kraft Turbin AB
      S-739 92 SKINNSKATTEBERG
      SWEDEN
      Low-head-kaplanturbines
      1,5-10 meters
      300-1100 mm
      www.cargo-kraft.se
      Phone: +46 222 280 80
      Fax: +46 222 280 79
      Vivas-crescas-floreas!



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    • tore.forsgren@tfe.se
      Original Article: http://www.egroups.com/list/microhydro/?start=228 ... Hi Tony Unfortunately a boatpropellor is not a turbine propellor runner in reverse
      Message 2 of 8 , May 15, 1999
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        Original Article: http://www.egroups.com/list/microhydro/?start=228
        > How efficient are propellor turbines for low head applications (< 4m), around 100 to 200kW in size? Surely they are much simpler than kaplan turbines in construction and thus rather cheaper?
        >
        > Presumably the range of flow rates for efficient operation is more restricted?
        >
        > Are mass produced propellors used in boating applications suitable to reduce costs at the expense of some efficiency (but obviously being fixed pitch, only being able to operate at fixed flow rates)?
        >
        > Regards,
        >
        > Tony Holt
        >

        Hi Tony

        Unfortunately a boatpropellor is not a turbine propellor runner in reverse rotation. Using a boatpropellor is like trying to fly an aeroplane backwards.

        Our contribution to the runner market can be found on our web page : http://www.tfe.se/ where som blade shapes can be seen.

        /Tore Forsgren, TF Energisystem



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