[Stoves] Effects of biomass pellet composition on the thermal and emissions performances of a TLUD cooking stove

[Ronal W. Larson]

List, cc Crispin:

	I was disappointed in this article.

Example problems:

1.  A TLUD with zero measurement of char production - makes no sense.  Measuring the weight of the char is a trivial exercise.  I made the same comment about an earlier similar article with 3 different fuels.
2.  Said to be a popular stove.  I find it inconceivable that users routinely do what is done here - count all char as waste. The name of the stove is not given. The stove appears to have no control on primary air - and a too-large flame in the figure.  This should be about a Tier 0 or Tier 1 stove as listed by an efficiency computation of about 15%.  
3.  Mention is made of the importance of density - but no densities are provided.   There is talk of pellets absorbing water easily
4.  One of the fuels (the one with the highest moisture content) is listed as having an energy density >21 MJ/kg;  I've never seen one that high.
5.  Figures 5 and 6 are identical - and the texts don't match with the figures.  Maybe 6 is the one in error - but who knows?
6.  Several examples of not agreeing with other authors (including Jim Jetter - maybe also "James"?) - but no explanations/rationales for the differences.

	I'd like to know what the values of G2 were for the three cases.  And the densities.  Too many unanswered questions here.

Ron




> On Aug 18, 2018, at 7:54 AM, Crispin Pemberton-Pigott <crispinpigott at outlook.com> wrote:
> 
> Dear Friends
> 
> This will be of interest to the TLUD builders. The long list of references at the end is a really good start if you want to look at emissions from different fuels.
> 
> I remind you that this paper is about the emissions from a particular stove, not "the fuel". It is how that stove handled those biomass fuels made from different materials.
> 
> The International Journal of Agricultural and Biological Engineering
> 
> "Effects of biomass pellet composition on the thermal and emissions performances of a TLUD cooking stove"
> Zhang Zongxi et al 2017.
> 
> https://www.ijabe.org/index.php/ijabe/article/view/2963
> 
> It is open access.
> 
> Regards
> Crispin
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