[Stoves] Fan-blaster Combustors, Stove Camp 2006, and theDell-Point Pellet Stove

[Dean Still]

Dear Tom,

I think that it takes about 2,000 watts to boil the 5 liters in the 7 liter
testing pot. But Nordica will tell us the real number today. The Philips,
Reed and Wood flame are all higher than that and are not operated in a
special way: wood is fed into the fire as it is consumed as is usual in a
cooking stove. It takes a bigger batch of fuel to boil 5 liters without
adding wood. 

We used the smaller pot, which is being incorporated into the WBT by UCB and
Aprovecho, to make quicker tests in the crowded schedule at Stove Camp.

Best,

Dean

-----Original Message-----
From: stoves-bounces at listserv.repp.org
[mailto:stoves-bounces at listserv.repp.org] On Behalf Of Tom Miles
Sent: Tuesday, September 19, 2006 8:31 PM
To: psanders at ilstu.edu
Cc: 'STOVES - Listserve'
Subject: Re: [Stoves] Fan-blaster Combustors, Stove Camp 2006,and
theDell-Point Pellet Stove

Maybe this is a question for Dean: what is the minimum power requirement for
a stove to be tested with the 5 Liter WBT?

If the Phillips, Reed, Woodflame stoves are all too small and have to be
operated in a special way what kind of fuel inventory and kW power rating is
the minimum for this test? Or do we know?

Tom





-----Original Message-----
From: psanders at ilstu.edu [mailto:psanders at ilstu.edu] 
And it was Dean who clearly stated to me that the Woodgas Campstove has been
repeatedly operated in this same way (what I am calling "fan-blaster") in
previous emissions testing because the duration of the burning by a 
single load
of fuel in the small fuel chamber of the Woodgas Campstove was not
sufficient
for completion of the WBT Water Boiling Test.  I am sure that is true
because
the Campstove's capacity for the "official wood" used in all emissions
testing
at Aprovecho is significantly less that what is needed to accomplish even
the
boiling of 5 liters of water, and then still to have the pot simmer for 45
minutes.  I understand and accept that way of operation during those tests
because the Woodgas Campstove is not able to be reloaded for further T-LUD
operation without removing the pot, emptying out the char/ash, partially
cooling the inside of the stove to prevent ignition at the bottom, and then
reloading and relighting for T-LUD operation, and replacement of the pot
onto
the stove.  Such a procedure is not convenient, so the procedural solution
was
use what I am now calling "fan-blaster" combustion.  What is interesting is
that the "fan-blaster" mode of operation was not recognized or noted or
reported, and we thought it was a T-LUD operation.




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