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

Paul Anderson psanders at ilstu.edu
Fri Dec 18 09:52:19 MST 2015

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.)


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
> _______________________________________________
> Stoves mailing list
> to Send a Message to the list, use the email address
> stoves at lists.bioenergylists.org
> to UNSUBSCRIBE or Change your List Settings use the web page
> http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org
> for more Biomass Cooking Stoves,  News and Information see our web site:
> http://stoves.bioenergylists.org/

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20151218/73eba4e0/attachment.html>

More information about the Stoves mailing list