[Stoves] News: On-the-ground research reveals true impact of cook-stove emissions in India

[Ronal W. Larson]

Nikhil  Few notes below.

> On Dec 18, 2017, at 10:25 AM, Nikhil Desai <pienergy2008 at gmail.com> wrote:
> 
> Ron: 
> 
> I have now read the paper and I am baffled at your claim that "it is full of health rationales (for India)."
> 
> It makes no findings about health, just about emission factors in a small part of India. 
	
	[RWL:  Maybe I’m wrong,  but I believe you can’t do anything related to health without knowing emission factors.   
> 
> To the authors' credit, they specify what fuels they have evaluated, provide their chemical analysis. And they have looked at actual cooking, not water boiling. 
> 
> I wonder if they had looked at GACC-commissioned study in India of district-level emissions. 
	[RWL:  	The cite for which is?


> 
> I am astounded at  your claim "I doubt one can use this paper to downgrade the WBT." when the authors clearly conclude that  " standardized burn protocols (typically a water boiling test) may not replicate cookstove performance in the field.”

	[RWL:  You are “astounded” because lab staff can produce lower emission results than in the field?  Your preference would be for them to artificially get big emission numbers?  I think there is general agreement that test lab staff try very hard to not let a fire go out - and real cooks have other, conflicting responsibilities.

	So you doubt my doubt -  please show a clear line between this paper’ s (non-WBT) numbers and what might result in a lab WBT test of a chula?   

> Only says "may". Because we really don't know much about emission rates across real stoves and fuels. It’s mostly a cooked up evidence. 
	
	[RWL:  You believe this paper is not looking at “real stoves and fuels”?   Their study looked to me pretty real.  How would you have improved it?

Ron 
> 
> 
> Nikhil
> 
> On Sat, Dec 16, 2017 at 3:30 PM, Ronal W. Larson <rongretlarson at comcast.net <mailto:rongretlarson at comcast.net>> wrote:
> Nikhil and list:
> 
> 	The (non-fee) paper is at https://www.atmos-chem-phys.net/17/13721/2017/acp-17-13721-2017.pdf <https://www.atmos-chem-phys.net/17/13721/2017/acp-17-13721-2017.pdf> 
> 	The supplement at  https://www.atmos-chem-phys.net/17/13721/2017/acp-17-13721-2017-supplement.pdf <https://www.atmos-chem-phys.net/17/13721/2017/acp-17-13721-2017-supplement.pdf>
> 
> 	Looks like a credible paper - but not one I am going to read carefully as it is only related to traditional chulas.  Seems to have a somewhat different means of monitoring the pollutants - in the field.  I doubt one can use this paper to downgrade the WBT.
> 
> 	I am going to guess you won’t like the paper as it is full of health rationales (for India).
> 	
> 	Re repeatability, I am working up more on fuel shape, which is a main feature of the L’Orange et al paper.  Fuel shape also not covered in the TLUD paper I noted with the 10% efficiency that Crispin has since commented on.
> 
> 	Twenty years ago we had some fine comments from a Professor at Washington University - who (I vaguely recall) was interested in some seeds that performed well for cooking because of their high oil content - that had no other use, because they were poisonous.
> 
> Ron
> 
>> On Dec 16, 2017, at 9:01 AM, Nikhil Desai <pienergy2008 at gmail.com <mailto:pienergy2008 at gmail.com>> wrote:
>> 
>> 
>> On-the-ground research reveals true impact of cook-stove emissions in India <http://indiacsr.in/on-the-ground-research-reveals-true-impact-of-cook-stove-emissions-in-india/>.  India CSR Network blog, 15 December 2017
>>   "We conducted real-life cookstove tests and burned a wide variety of biofuels, cooked different meals in a number of varying ventilation situations, then recorded the resulting emission levels using high-tech particle measurement devices.
>> 
>> Once the data was crunched back in St. Louis, the results were startling:  In some cases, more than twice the emission levels were detected when compared to the previous lab findings, revising what people thought they knew for decades about this pervasive and dangerous problem."
>> 
>> I wonder what protocols and fuels were used, and also whether they only measured emissions but also concentrations and tried to model the two. 
>> 
>> Or whether the alleged "previous lab findings" are comparable or this research team is just boasting. 
>> 
>> I hope the revisions are not as shoddy as the history. What people thought they knew was what they chose to or were instructed to believe. 
>> 
>> Related press release at Engineers work to fight pollution at home, globally <https://source.wustl.edu/2017/08/engineers-work-fight-pollution-home-globally/>, Erika Ebsworth-Goold  August 11, 2017. Haven't yet located the full paper. 
>> 
>> Nikhil 
> 

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