[Terrapreta] Terrapreta Digest, Vol 16, Issue 25

[Kevin Chisholm]

Dear Sean

The Tesla Turbines are simple to construct (flat circular plates), but 
are very inefficient in comparison to conventional turbine designs. I 
would suspect that if the same operating principles are employed with a 
Tesla Pump, they would also be very inefficient.

They are commercially available for pumping extremely viscous liquids, 
but my guess would be that they would not be very good for handling 
fluids with viscosities in the range of water.

Would you have any pump performance data for Tesla Pumps?

Thanks.

Kevin

Sean K. Barry wrote:
> Hi Jim,
>  
> I said an axial flow pump earlier.  Actually the flow through these 
> types of pumps is axial inflow and radial outflow.  It is a "Tesla 
> Pump" and its flows are exactly the reverse of gas flows through a 
> "Tesla Turbine".  This is a design used by several pump companies.  
> I've seen ones to move liquid entrained solids up to 2" in diameter.  
> Putting a 2" chunk of charcoal through an injection nozzle into the 
> dirt would be another design matter altogether.  The hardness of the 
> pump body can be made I'm sure resistant to abrasion from charcoal 
> bits that could fit through a "slurry" nozzle, though, I would think.  
> Many nozzles makes for a larger diameter delivery pipe anyway, I would 
> think.
>  
> Regards,
>  
> SKB
>
>     ----- Original Message -----
>     *From:* jim mason <mailto:jimmason at whatiamupto.com>
>     *To:* Tom Miles <mailto:tmiles at trmiles.com>
>     *Cc:* Nikolaus Foidl <mailto:nfoidl at desa.com.bo> ;
>     terrapreta at bioenergylists.org <mailto:terrapreta at bioenergylists.org>
>     *Sent:* Saturday, May 10, 2008 4:22 PM
>     *Subject:* Re: [Terrapreta] Terrapreta Digest, Vol 16, Issue 25
>
>
>
>     On Sat, May 10, 2008 at 11:47 AM, Tom Miles <tmiles at trmiles.com
>     <mailto:tmiles at trmiles.com>> wrote:
>
>         Nikolaus,
>
>         Great solution. The only headache is that charcoal is very
>         hard on pumps and
>         pump seals. We experience this when using activated charcoal
>         for carbon
>         banding while seeding grass seed.
>
>
>
>     i like nikolaus' scenario too.
>
>     there are pump types specifically designed for moving liquids with
>     abrasives in them.  this is actually one of the few useful
>     applications for the tesla turbine design.  there is a pump
>     company using htis designf or abrasive in liquid transport. 
>
>
>
>      
>
>
>         Tom
>
>
>         >In industrial sized agriculture you would use a 10 m3 tank
>         hauled in the
>         back of the seeding machine, pumping a slurry of fine milled
>         charcoal,
>         mycorrhizae infected soil and diluted melassa together with
>         your favorite
>         mix of fungi and bacteria and apply it as a side dressing or a
>         broad band-
>         below seed-dressing.
>
>
>
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>
>
>
>     -- 
>     --------------------------------------------------------------------------------
>     jim mason
>     website: www.whatiamupto.com <http://www.whatiamupto.com>
>     current project: gasifier experimenters kit (the GEK):
>     www.allpowerlabs.org/gasification/gek
>     <http://www.allpowerlabs.org/gasification/gek>
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