[Digestion] Digester Heating by a thermosiphon system

Paul Harris paul.harris at adelaide.edu.au
Thu Nov 15 19:32:23 PST 2012


G'day Paul,

I think the idea has merit, as it reduces the parasitic energy 
consumption, cost(?) and maintenance, but I am not sure how well it will 
work. What size digester are you talking about? The other difficulty is 
that you want your heater below the digester coils to get circulation 
and you also want your digester coils to be at the base of the digester 
to get convective mixing within the digester.

All the best,
HOOROO

Mr Paul Harris BEng (Ag) (Melbourne)
Visitor at The University of Adelaide

On 15/11/2012 6:33 PM, Paul Muthui wrote:
> Good Day All,
>
> I am looking into ways if heating my biogas digester to increase 
> specific gas yield. I have thought of using a thermosiphon, whereby I 
> heat my primary liquid and then pass it through coils inside the 
> digester.
>
> Has anyone done this before and what would be the expected efficiency 
> of such? Is it an idea worth pursuing?
> -- 
> *Best Regards*,
>
> *Paul S. Muthui*
> *Research & Development Engineer*
> *Schutter Energy Ltd.*
> *P.O **Box 50178 - 00100, Nairobi*
> *Tel: 0738 689 788*
>
> *Mobil**e: 0724 815**594*
> paul at takamotobiogas.com <mailto:paul at takamotobiogas.com>
> www.takamotobiogas.com <http://www.takamotobiogas.com>
>
>
>
>
>
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