Hi Tuong,
Maybe a water seal, like a cup of water at the charcoal outlet. And
maybe not.
Possibly reducing the diameter of the downdraft might reduce the amount
of tar but might require a stronger fan. In other words increase the
superficial velocity.
Jeff
On 05/14/2013 06:56 AM, Tuong, DoDuc wrote:
Thanks Jeff.
The idea for closing the char may cause incovenience for user to
remove char, but we will try that on.
One of the solution we were thinking of is to use the husk char to
filter the tar.
In the burner tube, we would fill in full of husk and ignite from there.
That part will works like normal TLUD. After the gasification process
on this part completes, the process in the main reactor (downdraft)
will start. The tar from that process then can be kept when moving
through the char left in the burner tube.
I will get back to you with the results of our try.
Regards,
Tuong
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