[Stoves] answer for David Whitfield inquiry

[alexis belonio]

To David,

Thanks for the email! Sorry for not immediately
answering your quiries.  I just found it only today!

The pot I used for the stove has a diameter of 26 cm
and a height of 16 cm.  It is made from aluminum and
can accommodate up to 5 liters of water in capacity. 
The steam is injected into the upper cylinder of the
stove where the flame is comig out.  The steam box
which contain 250 ml of water will generate steam at
about 6 minutes.  The flame combustion is improved
once the steam hit the burning gases.  The
hydrocarbons during combustion is washed out by the
steam it it goes with the ash as it falls down the
burning layer of rice husk.  Tests had shown that good
quality flame can be produced from steam injection but
there is reduction in the thermal efficiency observed
in the stove. The steam that crosses the burning gases
quenches the flame from hitting the pot. Presently, we
are developing a center steam injection that will
concurrent flow with the burning gases rather than
crossing it.  I will inform you then of this result
once I finished it.  You may also asked Dr. Anderson
about this and also Mr. Dean Still.  Both of them saw
how steam injection works well in wood stove during
our China Training on Biomass Gasification sponsord by
the Asia Regional Cookstove Program (ARECOP).

Alexis 

      

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