[Stoves] Benefits of advanced wood-burning stoves greater than thought

[Nikhil Desai]

Sujoy:

This is a cup in a firestorm, if you understand what I mean by inverting
metaphor.

The study was indeed linked to field use in Malawi, the same one associated
with a rather ludicrous "health study". That apart, the NCSU research is
about "climate change", not about cooking or health. (The health professors
had already declared Philips stoves in Malawi as making no significant
change. I am writing from memory.)

Why bother? All the talk about "household stoves warm the planet" is also
cooked up "convenient facts". It is known for decades that depending on the
type of biomass and stoves (in and outside households), there are warming
aerosols (black carbon) and there are cooling aerosols (organic carbon) in
different ratios.

I found this study very interesting because they did some follow-up lab
studies to discover that "atmospheric aging" of emissions changes the
relative ratio of warming v. cooling species.

So, in an academic sense, field testing of roughly a billion stoves (some
people have more than one, and there are non-household users) will tell us
if they warm or cool the earth.

That is the limit of my recollection of atmospheric chemistry on that. I
don't think it matters a hoot if the professoriat finds that their findings
are different from what "researchers previously thought."

Especially as come to climate change, where I am guessing the net effect of
biomass stoves on multi-decadal GMST change is zero.

I hope it surprises nobody that in a crude sense, the net effect of
coal-fired power emissions on multi-decadal GMST change is also zero.
Depends on what organic carbon and sulfate emission loads are.

The war against solid fuels is fought with convenient lies and academic
factoids.

Nikhil


On Wed, Aug 16, 2017 at 2:00 AM, Sujoy Chaudhury <sujoy.chaudhury at gmail.com>
wrote:

> Dear Bruno
>
> Thank you for the paper- Interesting to wood stove promoters.
>
> But - "All of this is based on lab measurements, which is important to
> note because previous studies have found that advanced stoves don't
> necessarily work as well in the field as they do in the lab".
>
> Measurements from the field. anyone thinking about this ?
>
> Regards
> Sujoy Chaudhury
> CSS
> Kolkata
>
> On Wed, Aug 16, 2017 at 5:20 AM, Bruno M. <brunom1 at telenet.be> wrote:
>
>> I didn't saw this been posted here before:
>>
>> Andrew Grieshop a researcher from North Carolina State University,
>>
>> found:
>>
>> Advanced wood-burning stoves designed for use in the developing world
>>
>> can reduce air pollution more than anticipated, because gaseous emissions
>> from traditional wood stoves
>>
>> form more particulate matter in the atmosphere than researchers
>> previously thought.
>>
>>
>> https://www.sciencedaily.com/releases/2017/08/170807112840.htm
>>
>>
>> Enjoy
>>
>> Bruno M.
>>
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>
>
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