[Gasification] jury rigging 3ph power.

[Ken Calvert]

Reg, Hi!
   What size is the motor driving your comb rotor?   There are several fixes 
available which would enable say a 200watt  3ph motor  motor to be driven 
from single 1ph power.   They mostly revolve around  using another old 3ph 
motor or a battery of motor start/run capacitors to be wired up as a kind of 
transformer.  If you have a spare motor or two then it costs very little. If 
you have to buy capacitors then its not, in my part of  the world anyway. 
Sincerely Ken C.
----- Original Message ----- 
From: "Reg Preston" <trpreston at mekarn.org>
To: "Discussion of biomass pyrolysis and gasification" 
<gasification at listserv.repp.org>
Sent: Saturday, July 21, 2007 1:48 AM
Subject: Re: [Gasification] fasts trees


Rolf
We are satisfied with the Ankur gasifier, especially as we can now use
sugar cane bagasse as fuel.  However, if you are going to buy one I
suggest you ask for the motor of the comb rotor be single phase. Our
unit has a 3 phase motor, but we only have 3 phase electricity when the
gas engine is running. In rural Colombia 3 phase connections from the
electricity companies are expensive and we like to use the gasifier to
operate as a gas producer to fill the reserve reservoirs. At the moment
when we do this the comb rotor (which scrapes out the ash) cannot
function and after 30 minutes or so, the gas quality deteriorates.

It is a pity the open-top throatless gasifier developed by Anil K.
Rajvanshi* has apparently not been followed up. I was very impressed
with this gasifier when I saw it in India  4 years ago.  It would be
valuable to know the details of the design especially of the grate
assembly, I believe this would be more appropriate for small particle -
low density biomass fuels that we produce from sugar cane and forage
trees.  If anyone on the list has this information,  I would appreciate
having access to it.

Regards

Reg in Colombia

* Published in Biomass and Bioenergy Vol 13., No. 3, pp141-146, 1997
SUGARCANE LEAF-BAGASSE GASIFIERS FOR
INDUSTRIAL HEATING APPLICATIONS
Rajeev Jorapur and Anil K. Rajvanshi
Nimbkar Agricultural Research Institute (NARI).
P.O. Box 44, PHALTAN-415523, Maharashtra, INDIA
E-mail : nariphaltan at sancharnet.in

-- 
T R Preston

Senior Editor, Livestock Research for Rural Development
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Colombia,
UTA-TOSOLY - Finca Ecológica
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AA # 48, Socorro, Santander, Santander del Sur, Colombia
Tel: 57- 7-7246058
Celular: 315-3536935

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