[Terrapreta] Terrapreta Digest, Vol 16, Issue 25

[Sean K. Barry]

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
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