[Stoves] Stoves Digest, Vol 106, Issue 9
Sujatha Srinivasan
sujatha at servals.in
Wed Jun 12 01:36:15 CDT 2019
Crispin - thank you for your nice words about the Servals Kerosene burner.
It has been described as "boon to the common man" by the ex- President of
India, Dr. Abdul Kalam - a renowned scientist in his own right. Pressurised
kero stoves are a vanishing possibility in India - with the emphasis on
LPG. Not many - want to bat for anything else other than LPG:)
These lines caught my attention also - "So, pressurized kerosene was
cleaner than LPG? - Neil Taylor". We had a technical team led by Dr.
Kalpana Balakrishnan visit us many years ago - I guess as part of GACC and
WHO - and make the same hypothesis. They also said that they would like to
conduct a "head-on" test to validate the hypothesis. Never happened.
On Mon, Jun 10, 2019 at 10:31 PM <stoves-request at lists.bioenergylists.org>
wrote:
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> Today's Topics:
>
> 1. A Laboratory Assessment of 120 Air Pollutant Emissions from
> Biomass and Fossil Fuel Cookstoves (Tom Miles)
> 2. Re: A Laboratory Assessment of 120 Air Pollutant Emissions
> from Biomass and Fossil Fuel Cookstoves (neiltm at uwclub.net)
> 3. Re: A Laboratory Assessment of 120 Air Pollutant Emissions
> from Biomass and Fossil Fuel Cookstoves (Ronal Larson)
> 4. Fwd: Kenya cookstoves (Tom Miles)
> 5. Re: LiveWire article on heating and indoor air quality
> improvement (Crispin Pemberton-Pigott)
> 6. Re: A Laboratory Assessment of 120 Air Pollutant Emissions
> from Biomass and Fossil Fuel Cookstoves (Crispin Pemberton-Pigott)
> 7. (no subject) (Dr. Dieter Seifert)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sun, 9 Jun 2019 12:48:41 -0700
> From: Tom Miles <trmilesjr at gmail.com>
> To: stoves at lists.bioenergylists.org
> Subject: [Stoves] A Laboratory Assessment of 120 Air Pollutant
> Emissions from Biomass and Fossil Fuel Cookstoves
> Message-ID:
> <
> CAJ9Ug0Kv0KYteww9xXJmVj4BGLVyAMToDm-93VbVEsydyyY1QA at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> You might be interested in the following content published on the ACS Web
> Editions Platform:
>
> https://pubs.acs.org/doi/10.1021/acs.est.8b07019
>
>
>
> Cookstoves emit many pollutants that are harmful to human health and the
> environment. However, most of the existing scientific literature focuses on
> fine particulate matter (PM2.5) and carbon monoxide (CO). We present an
> extensive data set of speciated air pollution emissions from wood,
> charcoal, kerosene, and liquefied petroleum gas (LPG) cookstoves.
> One-hundred and twenty gas- and particle-phase constituents?including
> organic carbon, elemental carbon (EC), ultrafine particles (10?100 nm),
> inorganic ions, carbohydrates, and volatile/semivolatile organic compounds
> (e.g., alkanes, alkenes, alkynes, aromatics, carbonyls, and polycyclic
> aromatic hydrocarbons (PAHs))?were measured in the exhaust from 26
> stove/fuel combinations. We find that improved biomass stoves tend to
> reduce PM2.5 emissions; however, certain design features (e.g., insulation
> or a fan) tend to increase relative levels of other coemitted pollutants
> (e.g., EC ultrafine particles, carbonyls, or PAHs, depending on stove
> type). In contrast, the pressurized kerosene and LPG stoves reduced all
> pollutants relative to a traditional three-stone fire (?93% and ?79%,
> respectively). Finally, we find that PM2.5 and CO are not strong predictors
> of coemitted pollutants, which is problematic because these pollutants may
> not be indicators of other cookstove smoke constituents (such as
> formaldehyde and acetaldehyde) that may be emitted at concentrations that
> are harmful to human health.
>
>
>
> A Laboratory Assessment of 120 Air Pollutant Emissions from Biomass and
> Fossil Fuel Cookstoves Kelsey R. Bilsback?, Jordyn Dahlke?, Kristen M.
> Fedak
> ?, Nicholas Good?, Arsineh Hecobian?, Pierre Herckes?, Christian L?Orange?,
> John Mehaffy?, Amy Sullivan?, Jessica Tryner?, Lizette Van Zyl?, Ethan S.
> Walker?, Yong Zhou?, Jeffrey R. Pierce?, Ander Wilson?, Jennifer L. Peel?,
> and John Volckens*? Environmental Science & Technology Article ASAP
>
> DOI: 10.102110.1021/acs.est.8b07019
>
> Copyright ? 2019/06/07
>
> American Chemical Society
>
> https://pubs.acs.org/doi/10.1021/acs.est.8b07019
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> ------------------------------
>
> Message: 2
> Date: Sun, 09 Jun 2019 22:18:18 +0100
> From: neiltm at uwclub.net
> To: Discussion of biomass cooking stoves
> <stoves at lists.bioenergylists.org>
> Subject: Re: [Stoves] A Laboratory Assessment of 120 Air Pollutant
> Emissions from Biomass and Fossil Fuel Cookstoves
> Message-ID: <5CFD779A.23957.454B2FB at neiltm.uwclub.net>
> Content-Type: text/plain; charset=US-ASCII
>
> On 9 Jun 2019 at 12:48, Tom Miles wrote:
>
> > In contrast, the pressurized kerosene and LPG stoves reduced all
> > pollutants relative to a traditional three-stone fire (>=93% and
> > >=79% respectively)
>
> So, pressurized kerosene was cleaner than LPG?
>
> Neil Taylor
>
>
>
>
>
> ------------------------------
>
> Message: 3
> Date: Sun, 9 Jun 2019 15:30:15 -0600
> From: Ronal Larson <rongretlarson at comcast.net>
> To: Discussion of biomass cooking stoves
> <stoves at lists.bioenergylists.org>, trmilesjr at gmail.com
> Subject: Re: [Stoves] A Laboratory Assessment of 120 Air Pollutant
> Emissions from Biomass and Fossil Fuel Cookstoves
> Message-ID: <EF9B69AD-730D-4FD4-8489-8A5FC652FFC4 at comcast.net>
> Content-Type: text/plain; charset="utf-8"
>
> Tom and list:
>
> Thanks for the alert.
>
> The paper is behind a paywall, but the supplemental gives quite a
> lot of non-fee information at
>
> https://pubs.acs.org/doi/suppl/10.1021/acs.est.8b07019/suppl_file/es8b07019_si_001.pdf
> <
> https://pubs.acs.org/doi/suppl/10.1021/acs.est.8b07019/suppl_file/es8b07019_si_001.pdf
> >
>
> They use data from a similar 2017 non-fee paper at
> https://pubs.acs.org/doi/10.1021/acs.est.6b05557 <
> https://pubs.acs.org/doi/10.1021/acs.est.6b05557>
>
> One surprise was how inefficient the two charcoal-using kilos
> were. In general, the Phillips looked best; which is a TLUD that consumes
> the produced char. No char-producers in the list.
>
> Ron
>
>
> > On Jun 9, 2019, at 1:48 PM, Tom Miles <trmilesjr at gmail.com> wrote:
> >
> > You might be interested in the following content published on the ACS
> Web Editions Platform:
> > https://pubs.acs.org/doi/10.1021/acs.est.8b07019 <
> https://pubs.acs.org/doi/10.1021/acs.est.8b07019>
> >
> > Cookstoves emit many pollutants that are harmful to human health and the
> environment. However, most of the existing scientific literature focuses on
> fine particulate matter (PM2.5) and carbon monoxide (CO). We present an
> extensive data set of speciated air pollution emissions from wood,
> charcoal, kerosene, and liquefied petroleum gas (LPG) cookstoves.
> One-hundred and twenty gas- and particle-phase constituents?including
> organic carbon, elemental carbon (EC), ultrafine particles (10?100 nm),
> inorganic ions, carbohydrates, and volatile/semivolatile organic compounds
> (e.g., alkanes, alkenes, alkynes, aromatics, carbonyls, and polycyclic
> aromatic hydrocarbons (PAHs))?were measured in the exhaust from 26
> stove/fuel combinations. We find that improved biomass stoves tend to
> reduce PM2.5 emissions; however, certain design features (e.g., insulation
> or a fan) tend to increase relative levels of other coemitted pollutants
> (e.g., EC ultrafine particles, carbonyls, or PAHs, depending on stove
> type). In contrast, the pressurized kerosene and LPG stoves reduced all
> pollutants relative to a traditional three-stone fire (?93% and ?79%,
> respectively). Finally, we find that PM2.5 and CO are not strong predictors
> of coemitted pollutants, which is problematic because these pollutants may
> not be indicators of other cookstove smoke constituents (such as
> formaldehyde and acetaldehyde) that may be emitted at concentrations that
> are harmful to human health.
> >
> > A Laboratory Assessment of 120 Air Pollutant Emissions from Biomass and
> Fossil Fuel Cookstoves Kelsey R. Bilsback?, Jordyn Dahlke?, Kristen M.
> Fedak?, Nicholas Good?, Arsineh Hecobian?, Pierre Herckes?, Christian
> L?Orange?, John Mehaffy?, Amy Sullivan?, Jessica Tryner?, Lizette Van Zyl?,
> Ethan S. Walker?, Yong Zhou?, Jeffrey R. Pierce?, Ander Wilson?, Jennifer
> L. Peel?, and John Volckens*? Environmental Science & Technology Article
> ASAP
> > DOI: 10.102110.1021/acs.est.8b07019
> > Copyright ? 2019/06/07
> > American Chemical Society
> > https://pubs.acs.org/doi/10.1021/acs.est.8b07019 <
> https://pubs.acs.org/doi/10.1021/acs.est.8b07019>
> >
> >
> > _______________________________________________
> > Stoves mailing list
> >
> > to Send a Message to the list, use the email address
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> >
> > to UNSUBSCRIBE or Change your List Settings use the web page
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> http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org
> >
> > for more Biomass Cooking Stoves, News and Information see our web site:
> > http://stoves.bioenergylists.org/
> >
>
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> ------------------------------
>
> Message: 4
> Date: Sun, 9 Jun 2019 21:12:01 -0700
> From: Tom Miles <trmilesjr at gmail.com>
> To: stoves at lists.bioenergylists.org
> Subject: [Stoves] Fwd: Kenya cookstoves
> Message-ID:
> <
> CAJ9Ug0KHFf4fk8fG+62XWer0EaO7m8J-WrgTQb15+JRGWiSajw at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> ''Adoption and impacts of clean bioenergy cookstoves in Kenya.''
>
> Kenya is one of the leading countries in the development and
> commercialization of clean bioenergy stoves in Sub-Sahara Africa. However,
> due to a series of interconnected factors, the adoption and sustained use
> of clean bioenergy stoves remains low in the country. This study
> synthesizes the current knowledge about clean and efficient bioenergy
> stoves in Kenya through a comprehensive review that brings together the
> disparate knowledge about the context, status, adoption and impacts of
> clean bioenergy stoves in Kenya.
>
> We start by outlining the main national policies technological, options and
> stakeholders involved in the clean bioenergy stove value chain such as
> government agencies, private companies, research organisations, and the
> civil society. Despite their different roles and interests, there is a
> shared expectation among all involved stakeholders that clean #bioenergy
> <
> https://www.facebook.com/hashtag/bioenergy?source=feed_text&epa=HASHTAG&__xts__%5B0%5D=68.ARAChxDRyzOl24qgXs82hDtG2V5rsgoYR_knaAQDt7mFnI8BCpiFnErli4agIgb2if-TELWz0uy9TkecxzLHVCSTn1ZjSQt53CccCrbPxDuzqEvMzsiGr0U2gBEUMvkSD2OgNdWATurlvR0KMXcqJnxzeo8zvtSLgfbi1v6ZpP1_kYeFaf9uDXIH7ShsOOKceJ5Bul4y9LpSiBK3lr0CAnMRdsoyqu3OSB0ts8W7WKeh-G5QwkDMzCN2LFoJ_gfkqnVJjlsfCNEZhzaN7w9wusheOD5eVgthUbjmdt-sPAwAE2452UkAqTcAdq55-O-8XT_Td1phZI_t7Qz1eZDDZTVGyg&__tn__=%2ANK-R
> >
> stoves
> will curb the negative sustainability impacts of traditional #cooking
> <
> https://www.facebook.com/hashtag/cooking?source=feed_text&epa=HASHTAG&__xts__%5B0%5D=68.ARAChxDRyzOl24qgXs82hDtG2V5rsgoYR_knaAQDt7mFnI8BCpiFnErli4agIgb2if-TELWz0uy9TkecxzLHVCSTn1ZjSQt53CccCrbPxDuzqEvMzsiGr0U2gBEUMvkSD2OgNdWATurlvR0KMXcqJnxzeo8zvtSLgfbi1v6ZpP1_kYeFaf9uDXIH7ShsOOKceJ5Bul4y9LpSiBK3lr0CAnMRdsoyqu3OSB0ts8W7WKeh-G5QwkDMzCN2LFoJ_gfkqnVJjlsfCNEZhzaN7w9wusheOD5eVgthUbjmdt-sPAwAE2452UkAqTcAdq55-O-8XT_Td1phZI_t7Qz1eZDDZTVGyg&__tn__=%2ANK-R
> >
> options
> on energy security/ poverty, human health, rural livelihoods, gender
> equality, and the environment.
>
> However, a series of factors affect the adoption and sustained use of clean
> bioenergy stoves such as market structure, consumer awareness, stove
> design/performance, and the socioeconomic status and cultural practices of
> stove users. We develop a conceptual framework that illustrates the
> interlinkages between these factors of adoption and impacts, and outline
> their varying degree of importance in Kenya. We finish this review by
> suggesting six policy and practice domains that need to be targeted by
> policies and research if an effective transition towards universal #
> cleancooking
> <
> https://www.facebook.com/hashtag/cleancooking?source=feed_text&epa=HASHTAG&__xts__%5B0%5D=68.ARAChxDRyzOl24qgXs82hDtG2V5rsgoYR_knaAQDt7mFnI8BCpiFnErli4agIgb2if-TELWz0uy9TkecxzLHVCSTn1ZjSQt53CccCrbPxDuzqEvMzsiGr0U2gBEUMvkSD2OgNdWATurlvR0KMXcqJnxzeo8zvtSLgfbi1v6ZpP1_kYeFaf9uDXIH7ShsOOKceJ5Bul4y9LpSiBK3lr0CAnMRdsoyqu3OSB0ts8W7WKeh-G5QwkDMzCN2LFoJ_gfkqnVJjlsfCNEZhzaN7w9wusheOD5eVgthUbjmdt-sPAwAE2452UkAqTcAdq55-O-8XT_Td1phZI_t7Qz1eZDDZTVGyg&__tn__=%2ANK-R
> >
> is
> to be achieved in #Kenya
> <
> https://www.facebook.com/hashtag/kenya?source=feed_text&epa=HASHTAG&__xts__%5B0%5D=68.ARAChxDRyzOl24qgXs82hDtG2V5rsgoYR_knaAQDt7mFnI8BCpiFnErli4agIgb2if-TELWz0uy9TkecxzLHVCSTn1ZjSQt53CccCrbPxDuzqEvMzsiGr0U2gBEUMvkSD2OgNdWATurlvR0KMXcqJnxzeo8zvtSLgfbi1v6ZpP1_kYeFaf9uDXIH7ShsOOKceJ5Bul4y9LpSiBK3lr0CAnMRdsoyqu3OSB0ts8W7WKeh-G5QwkDMzCN2LFoJ_gfkqnVJjlsfCNEZhzaN7w9wusheOD5eVgthUbjmdt-sPAwAE2452UkAqTcAdq55-O-8XT_Td1phZI_t7Qz1eZDDZTVGyg&__tn__=%2ANK-R
> >
> .
>
> These include to (a) adopt integrated policy approaches and enhance
> stakeholder collaboration; (b) raise awareness of the benefits of clean
> bioenergy cooking options; (c) facilitate access to funding and establish
> appropriate economic incentives; (d) implement quality assurance
> mechanisms;
> (e) facilitate behavioural change among stove users; (f) enhance research,
> development, and technical capacity.
>
> Alice Karanjaa, Alexandros Gasparatosb
>
> http://www.gasparatos-lab.org/?/karanja_and_gasparatos_2019?
> <
> http://www.gasparatos-lab.org/uploads/7/6/6/1/76614589/karanja_and_gasparatos_2019.pdf?fbclid=IwAR0qEUEyY4duQlMtwJNyjK6IlVftU6TaHWeSjx8J6DIQbhEWVF4e9n-sM0U
> >
>
> Clean Cooking Alliance
> <
> https://www.facebook.com/cleancookingalliance/?__tn__=K-R&eid=ARDpGxD96pYb_dTGPb3YvYgUtD4zwWmrptHOZDFitKhKoweCMaqhr0yGSPrx02chDUrGE34bS34HjyUK&fref=mentions&__xts__%5B0%5D=68.ARAChxDRyzOl24qgXs82hDtG2V5rsgoYR_knaAQDt7mFnI8BCpiFnErli4agIgb2if-TELWz0uy9TkecxzLHVCSTn1ZjSQt53CccCrbPxDuzqEvMzsiGr0U2gBEUMvkSD2OgNdWATurlvR0KMXcqJnxzeo8zvtSLgfbi1v6ZpP1_kYeFaf9uDXIH7ShsOOKceJ5Bul4y9LpSiBK3lr0CAnMRdsoyqu3OSB0ts8W7WKeh-G5QwkDMzCN2LFoJ_gfkqnVJjlsfCNEZhzaN7w9wusheOD5eVgthUbjmdt-sPAwAE2452UkAqTcAdq55-O-8XT_Td1phZI_t7Qz1eZDDZTVGyg
> >
>
> http://www.gasparatos-lab.org/uploads/7/6/6/1/76614589/karanja_and_gasparatos_2019.pdf?sfns=mo
>
> See Clean Cooking Association of Kenya on Facebook
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> ------------------------------
>
> Message: 5
> Date: Mon, 10 Jun 2019 08:32:44 +0000
> From: Crispin Pemberton-Pigott <crispinpigott at outlook.com>
> To: Discussion of biomass cooking stoves
> <stoves at lists.bioenergylists.org>
> Subject: Re: [Stoves] LiveWire article on heating and indoor air
> quality improvement
> Message-ID:
> <
> BN6PR22MB004950B09FC3CB093BA98B92B1130 at BN6PR22MB0049.namprd22.prod.outlook.com
> >
>
> Content-Type: text/plain; charset="us-ascii"
>
> Thanks Neil. I know you are a quiet support of many sensible things.
>
>
>
> You are correct about the impact on children. There is a report submitted
> by the Tajikistan team to the conference two years ago in Beijing organised
> by Yabei Shang at the World Bank, collecting all the players involved at
> the time. The achievement in Tajikistan, which is a very poor country with
> manifold social and economic problems, was measured using an unusual
> "ruler".
>
>
>
> One of the chronic underheating problems is in school classrooms. In
> summer the place is boiling hot and the ceilings are necessarily very high
> - often more than 3 metres. Heating children sitting on benches on the
> floor is challenging - best done by radiation if possible. I was shocked
> to find out that children spend the whole day in school in winter wearing
> their outdoor coats - it is that cold.
>
>
>
> I asked a teacher if "that stove" actually heated the room. Each room has
> its own stove. He replied "No, it only takes the edge off the cold." We
> put TLUD coal stoves with well-regulated excess air in the rooms to see how
> it went and it was very successful. The measure of impact what that all the
> photos show the children no longer wearing their outdoor winter coats, only
> a sweater as one might do at home.
>
>
>
> The stoves (Model 3 in the list<
> http://www.newdawnengineering.com/website/library/Stoves/Kyrgyzstan/>)
> are fueled and ignited about 7AM and they run for about 9 hours on a
> charge. By late afternoon there isn't much heat needed. They radiate
> massively initially heating the room rapidly then slow down to burn the
> coke. Emissions are negligible.
>
>
>
> They are so hot they had to place a metal fence around the stove to keep
> kids from accidentally touching or tripping into it. I think they were
> about $90. Maybe less.
>
>
>
> They were installed in "social buildings" meaning pre-schools, clinics and
> classrooms which are not heated at night. During the development of this
> model we tripped over a better ignition method for TLUD's which is to light
> on one side of the fuel (by one wall) and draft air across to the opposite
> side. In addition, the ignition fuel - kindling - was stacked vertically in
> the centre perhaps 120mm deep. This burns out first, creating a vertical
> burning hole, onto which collapses the fuel. By then it has been pyrolysed
> so there is no smoke to speak of. It is a quick ignition and easily
> reproduced.
>
>
>
> This method of ignition was communicated to Wojciech Treter in Poland who
> confirms it increase the speed of ignition and reduces the TLUD emissions
> even further (he has been trying to popularise it for existing stoves in
> Poland).
>
>
>
> In Kyrgyzstan the concept of an "interim technology" is important in that
> no one is going to help these people in a practical manner until everyone
> has gas and cheap electricity. How far away is that? Two generations?
>
>
>
> OK, then in the meantime please support some interim measure that brings
> large benefits, saving the government hundreds of million in health care
> costs and productivity loss. E can genuflect at the right altars, but lets
> get on with doing something beneficial right now.
>
>
>
> GIZ has been strong in supporter of this idea in the cooking stove sector.
> They feel if everyone had a Tier 2 stove, 100%, that is more efficacious
> that 5% having a Tier 4 stove with its associated expenses.
>
>
>
> Cecil Cook calls that "a 100% solution and a 5% solution". If we
> "develop" all of the people 5% it is better than developing 5% of the
> people 100% and 95% not at all.
>
>
>
> While everyone is throwing money at preventing global warming, there are
> many people dying each year or suffering long term consequences of chronic
> underheating. Hundreds of millions of them. Everyone can do as they wish,
> but let's first take care of those easily and inexpensively assisted.
>
>
>
> For those interested in CO2 and BC reduction, the net effect of these
> stoves is 40% drop in CO2 and 92% drop in BC (conservatively estimated).
>
>
>
> Est regards
>
> Crispin in Johor, definitely not in need of space heating.
>
>
>
> +++++++
>
>
>
> I just read your 'Beyond the last mile' report and just wanted to say how
> impressed I am that you achieved this, overcoming all the obstacles.
>
>
>
> Table 1 is just so impressive, and must be immensely satisfying to know
> that you have facilitated such a health improvement, particularly for the
> children.
>
>
>
> I noticed though that these stoves are described as an 'interim
> technology', until such time as these poor remote communities get something
> better?! Looks as if it will be a hard act to follow for anything.
> Anything real that is.
>
>
>
> I'm saving a copy, as this dirty fuel political manipulation is so well
> exposed by this account. It's a rare and precious thing to be able to see
> for oneself what is possible that manages to struggle through the vested
> interest constructed word, giving the lie to it.
>
>
>
> Best wishes, Neil Taylor
>
>
>
>
>
>
>
>
>
>
>
> On 9 Jun 2019 at 3:29, Crispin Pemberton-Pigott wrote:
>
>
>
> > Dear Friends
>
> >
>
> > There is a LiveWire article on the Kyrgyzstan Heating Stove pilot just
>
> > published at
>
> >
>
> > https://openknowledge.worldbank.org/handle/10986/31774
>
> >
>
> > "Chronic underheating is commonplace among poor households in
>
> > cold-climate regions of developing countries beyond the reach of
>
> > district heating and gas-distribution networks. Until fuel switching
>
> > is possible, high-efficiency, low-emissions (HELE) technologies offer
>
> > a cost effective, intermediate solution to meet the heating
>
> > aspirations of underserved populations. Recent pilot experience in
>
> > Kyrgyzstan shows that switching to HELE heating stoves yields
>
> > substantial benefits, including dramatically reduced emissions, better
>
> > health, and savings in household fuel expenditure." URI
>
> > http://hdl.handle.net/10986/31774
>
> >
>
> > It is essentially a precis of the full paper presented as responses to
>
> > a set of standard questions.
>
> >
>
> > The Winter Heating Pilot covered stoves burning coal, wood and dung.
>
> > All three are widely used in rural areas, often in combination (fuel
>
> > stacking). Cooking, heating, baking bread and making tea are often
>
> > done using separate devices (stove stacking).
>
> >
>
> > Quite significant improvements were made for stoves using all three
>
> > fuels, as testified by the indoor air quality measurements of personal
>
> > exposure. Fuel savings were typically 40% compared with the old
>
> > stoves.
>
> >
>
> > Best regards Crispin
>
> >
>
>
>
>
>
>
>
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> ------------------------------
>
> Message: 6
> Date: Mon, 10 Jun 2019 08:32:51 +0000
> From: Crispin Pemberton-Pigott <crispinpigott at outlook.com>
> To: Discussion of biomass cooking stoves
> <stoves at lists.bioenergylists.org>
> Subject: Re: [Stoves] A Laboratory Assessment of 120 Air Pollutant
> Emissions from Biomass and Fossil Fuel Cookstoves
> Message-ID:
> <
> BN6PR22MB0049531B53C48FAB5E2D30D4B1130 at BN6PR22MB0049.namprd22.prod.outlook.com
> >
>
> Content-Type: text/plain; charset="us-ascii"
>
> I noticed that immediately.
>
>
>
> This helps kill the notion that kerosene is a "dirty fuel". The root of
> the idea is a claim from a study in India where people use kerosene in a
> glass tumbler with a cloth wick hanging out of it, as a lamp.
>
>
>
> Incidentally, the pressure head made by our Stove List reader Sujatha is
> better than the Indian Roarer Head by some measure. It is not just the
> stove and the fuel that can be varied. Sujatha's burner head is the work of
> her father and it out-performs all competition. It is a carefully balanced
> piece of work. Installing that head on anyone's pressure stove improves the
> performance and reduces needed maintenance, and of course reduces emissions
> at the same time. How it does that is a secret, but you can still get one
> for about a dollar.
>
>
>
> I remind you about the FSP stove from South Africa which has a novel
> burner that does not involved a standard pressure head. It has extremely
> low emissions as well.
>
>
>
> [A picture containing floor, table, indoor, next Description
> automatically generated]
>
>
>
> Regards
>
> Crispin
>
>
>
> On 9 Jun 2019 at 12:48, Tom Miles wrote:
>
>
>
> > In contrast, the pressurized kerosene and LPG stoves reduced all
>
> > pollutants relative to a traditional three-stone fire (>=93% and
>
> > >=79% respectively)
>
>
>
> So, pressurized kerosene was cleaner than LPG?
>
>
>
> Neil Taylor
>
>
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> ------------------------------
>
> Message: 7
> Date: Mon, 10 Jun 2019 10:33:07 +0200
> From: "Dr. Dieter Seifert" <doseifert at googlemail.com>
> To: Discussion of biomass cooking stoves
> <stoves at lists.bioenergylists.org>
> Subject: [Stoves] (no subject)
> Message-ID:
> <CAAu5=
> m624La7qnv8EMv3Jbbh24APdDedzTsApxcACeAz5OcbrQ at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Dear all,
>
> we should remember that there are two possibilities to cook without any
> emission: solar cooking and cooking with retained heat, enabling the
> reduction of annual fuelwood consumption from e.g. 4000 kg to 300 kg. I
> tried to show this again in the paper of my speech about ?Proposals to
> finance energy projects of developing countries by the voluntary
> compensation of greenhouse gas emissions?, page 21, at the meeting of
> INTERSOL, society to promote INTERnational SOLidarity, Salzburg/Austria,
> https://solarcooking.fandom.com/wiki/Dieter_Seifert see ?Publications?.
>
> Kind regards,
> Dieter
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> ------------------------------
>
> Subject: Digest Footer
>
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> ------------------------------
>
> End of Stoves Digest, Vol 106, Issue 9
> **************************************
>
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