[Stoves] [Ethos] Additional presentations at ETHOS 2015

[Samuel Bentson]

Hi Paul,

I chose that title to garner interest. It worked! The point is to show how to better standardize the WBT, and in case that is not possible, to show how to be aware of how the results can be manipulated or misunderstood. Here are the slides I threw together in a few minutes after deciding not to do my original talk. It’s mainly just some headings. We’re working on a paper that goes into detail about the water quantity used, it also talks about the temperature of the water during simmer, and the firepower used to bring the water to boil.  You’re right that the quantity of water influences the emissions metrics. The current WBT does have some language about not comparing tests that were conducted with different amounts of water, but it is vague. I wasn’t aware of it when I gave the talk and I don’t think other testers I have spoken to are aware of it.

Sam

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On Feb 13, 2015, at 2:59 PM, Paul Anderson <psanders at ilstu.edu> wrote:

> To all,
> 
> Thanks, Elisa, for the full program.   I note two things, for comments later.
> 
> 1.  I do not see the name nor topic of Jessica Tryner of CSU, but she did present and she will be sending me a copy of the presentation, which will also appear at the Website, as Elisa has stated.   When I have that presentation, I will send comments.
> 
> 2.  The topic of Sam Bentson's presentation is   "How to cheat the WBT."   I do not like the title because the word "cheat" is too value loaded.   Maybe "manipulate the WBT" or "modify assumptions about the WBT" or maybe " How changing some variables of the WBT can result in more favorable results."   The procedures are not changed, but some variables can be changed, and there is no requirement to report the changed variables when claiming Tier levels.
> 
> Whatever the name might be, I am interested in the content of Sam's presentation.   Anyone who attended, please list out that variables that were mentioned.   And Sam can be sending comments also, so we do not need to wait for the materials to be at the website.   
> 
> We who attended do know one of the variables, because Dean Still clearly discussed it in his Keynote presentation.   Dean discussed the impact of using 9 liters of water instead of 5 L in the WBT, to accomplish Tier 4 level of efficiencies.  And that change might have impacted CO and PM reading also, but that was not stated.
> 
> When we have more information, we can have a more full discussion.   Please use new Subject lines that are specific to the topics of discussion.        
> 
> 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 2/13/2015 4:09 PM, Derby, Elisa wrote:
>> Here it is.  If anyone sees any errors let me know-- this and all the presentations will be posted on the ETHOS website soon!
>> Best,
>> Elisa
>> 
>> -----Original Message-----
>> From: 
>> ethos-bounces at vrac.iastate.edu [mailto:ethos-bounces at vrac.iastate.edu
>> ] On Behalf Of Paul Anderson
>> Sent: Friday, February 13, 2015 10:57 AM
>> To: ETHOS - Listserve; Stoves and biofuels network; Sam Bentson; 
>> marchese at colostate.edu
>> 
>> Subject: [Ethos] Additional presentations at ETHOS 2015
>> 
>> Dear all,
>> 
>> At the recent ETHOS 2015 conference there were some presentations added 
>> after the printing of the schedule.
>> 
>> 1.  Where is a copy of the final schedule (what was actually presented.)?
>> 
>> 2.  If you were there, please let me know if you attended either of the 
>> following two presentations that I have heard about later, but I did not 
>> attend.   Your comments or notes would be appreciated:
>> 
>>       A.   Sam Benton (of Aprovecho), speaking something about how 
>> testing procedures can be acceptably modified/adjusted within the 
>> testing guidelines to get higher tier results.
>> 
>>      B.   Jessica Tryner (of Colorado State Univ.) about the research on 
>> ND semi-gasifier (TLUD) stoves.
>> 
>> Thanks,
>> 
>> Paul
>> 
>> 
>> 
>> 
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>