[Stoves] TWO listservs of great value. Re: [stove] Measured long-term usage of an advanced biomass stove

[Paul Anderson]

Stovers,

Please note that the message below (relates to Philips stove in India) 
was sent to the      stove    list at Berkeley.
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It does NOT go to the Stoves    (note the plural with "s").    but is 
very appropriate.

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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 12/3/2014 1:43 AM, Kirk R. Smith wrote:
> First published long-term application (that we know about) of the 
> Stove Use Monitors (SUM) we pioneered last decade -- in this case more 
> than 140k stove-days of observations of the advanced forced draft 
> semi-gasifier stove (Philips) as well as the traditional chulha we 
> were hoping to displace.  This was done in our Newborn Stove project 
> in India involving two Indian and two US institutions.  The analysis 
> forms part of Ajay Pillarisetti's PhD thesis.  Webpublished version 
> and supplementary material can be downloaded from my website below, 
> but please watch for the final published version as there are often 
> changes made at this stage, sometimes important.
>
> In addition to showing the high utility of such measurements and the 
> importance of measuring both the new and the old stove over time, it 
> reveals an unanticipated pattern of use.  Apparently, most women 
> readily took up the Philips but to a significant extent added to their 
> continued use of the chulha.  Thus, even though more fuel efficient 
> the introduction of the Philips apparently caused a net increase in 
> fuel use.  Presumably they found a benefit to doing so, but not in a 
> way that ended up saving fuel (n.b.  this is not a fuel short area).  
> This is not "stacking" in the way we have come to use the term, i.e. 
> that the new stove takes only part of the tasks of the old one, but 
> perhaps something one might call "super stacking" -- partly 
> substituting but also adding to the total.
>
> Not reported here, but soon to come, are the air pollution 
> measurements that were done in this study.  As you might expect, they 
> unfortunately show quite modest changes as a result of this usage 
> pattern.  Best/k
>
> Patterns of Stove Usage after Introduction of an Advanced
> Cookstove: The Long-Term Application of Household Sensors
> Ajay Pillarisetti, Mayur Vaswani,Darby Jack,Kalpana 
> Balakrishnan,Michael N. Bates,
> Narendra K. Arora,and Kirk R. Smithdx.doi.org/10.1021/es504624c | 
> /Environ. Sci. Technol./, Nov 2014 (webpublished)
>
> ABSTRACT: Household air pollution generated from solid
> fuel use for cooking is one of the leading risk factors for ill-health
> globally. Deployment of advanced cookstoves to reduce
> emissions has been a major focus of intervention eff orts.
> However, household usage of these stoves and resulting
> changes in usage of traditional polluting stoves is not well
> characterized. In Palwal District, Haryana, India, we carried out
> an intervention utilizing the Philips HD4012 fan-assisted stove,
> one of the cleanest biomass stoves available. We placed small,
> unobtrusive data-logging iButton thermometers on both the
> traditional and Philips stoves to collect continuous data on use
> patterns in 200 homes over 60 weeks. Intervention stove usage
> declined steadily over time and stabilized after approximately
> 200 days; use of the traditional stove remained relatively constant. 
> We additionally evaluated how well short-duration usage
> measures predicted long-term use. Measuring usage over time of both 
> traditional and intervention stoves provides better
> understanding of cooking behaviors and can lead to more precise 
> quantifi cation of potential exposure reductions and consequent
> health benefi ts attributable to interventions.
>
> ---------------------------
>
> Kirk R. Smith, MPH, PhD
> Professor of Global Environmental Health
> Director of the Global Health and Environment Program
> School of Public Health
> 747 University Hall
> University of California
> Berkeley, California, 94720-7360
> phone 1-510-643-0793; fax 642-5815
> krksmith at berkeley.edu
> http://ehs.sph.berkeley.edu/krsmith/
>
>
>
> <http://ehs.sph.berkeley.edu/krsmith/>
>
>
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