[Stoves] Combustion test of Kaliandra Pellet in UB/Prime stove

[Muhammad Nurhuda]

Dear Prof. Anderson,

Thank a lot for your comments.
It was some mistakes for explanations of opening width. The opening width
for small flame was correct, 1 mm. But for moderate intensity and high, it
should be between 5-10 mm and 10-15 mm, respectively. I got it after
checking the original video segments.  For  strong intensity, the opening
was somewhat larger than 2 cm.
The last segment (strong intensity) is not used, since the flame is simply
too strong for ordinary cooking.

Accordingly, I will replace the video with the correct one. Please check
the following link:

https://www.youtube.com/watch?v=Ct6ZDrr4quA&feature=youtu.be

Regards
M. Nurhuda



On Fri, Dec 18, 2015 at 11:52 PM, Paul Anderson <psanders at ilstu.edu> wrote:

> Dear Prof. Nurhuda,
>
> Thank you for posting that video that so clearly shows the variability of
> TLUD flames, along with measurements of the openings for each intensity on
> your stove.
>
> The lowest (about 1 mm) is truly tiny, and TLUD developers everywhere need
> to be aware of how extremely small is the opening that will continue a
> viable TLUD flame.
>
> Then small changes in the opening (measured in just a few mm) can produce
> visibly different results.
>
> And fully open (20 mm) is what a TLUD can have if there is essentially no
> restriction on primary air.
>
> What is also shown is that the increase in the secondary air is not
> proportional to that of the increase in primary air.  The flame keeps
> getting taller.   Visually, that is noteworthy.   But when a pot is in
> place, the cleanliness (low emissions) of the different flames will be
> different.   This is that case in all natural draft (ND) TLUD stoves, as
> far as I know.
>
> This illustrates one of the major advantages of having FA (fan assisted or
> Force Air) with TLUDs.   In those cases where the proportions remain
> constant, the fire should become visually more vigorous (turbulent) but the
> height of the flame should stay quite low.   Perhaps not even 2 -3 cm
> difference in height between the lowest and the highest flames, but with
> significant increase of the heat that is sent up to the pot.
>
> Expect TLUD stoves to be major topics and numerous presentations at the
> coming ETHOS meeting on 29 - 31 January in Seattle.   BTW, TODAY is the
> official last day to send in your abstracts.   (I say "official" because
> after today the organizers can accept or reject proposals for presentation,
> and I have not seen any extension of the deadline.)
>
> Paul
>
> Doc  /  Dr TLUD  /  Prof. Paul S. Anderson, PhD
> Email:  psanders at ilstu.edu
> Skype: paultlud      Phone: +1-309-452-7072
> Website:  www.drtlud.com
>
> On 12/18/2015 10:08 AM, Muhammad Nurhuda wrote:
>
> Dear Stovers,
>
> Please check the following video demonstrating the combustion of different
> flame intensity.
>
> https://www.youtube.com/watch?v=M6TBhzqIGZs&feature=youtu.be
>
> Have a nice weekend.
>
>
> Kind regards
> M. Nurhuda
>
>
>
>
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