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<P class=MsoNormal style="MARGIN: 0cm 0cm 10pt; LINE-HEIGHT: 13pt"><SPAN
lang=EN-US><FONT style="FONT-SIZE: 11pt">Stovers.</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 10pt; LINE-HEIGHT: 13pt"><SPAN
lang=EN-US><FONT style="FONT-SIZE: 11pt">Attached you will find photos of WTB 3
with Peko Pe -ND with pellets made of sewage-mud and waste paper. The blue flame
continued during the whole combustion process. No bad smell. <SPAN
style="mso-spacerun: yes"> </SPAN><SPAN
style="mso-spacerun: yes"> </SPAN>Compared to pellets from wood with yellow
flame the temperature was a bit lower, but you could come closer the flame with
the pot, and there was no soot or tar on the pot. From 600 gr pellets there was
left 21% biochar pellet shape of good quality and with a PH between 5 and
6.</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 10pt; LINE-HEIGHT: 13pt"><SPAN
lang=EN-US><FONT style="FONT-SIZE: 11pt">No doubt pellets will be the future
household fuel, it will be possible to design it to the desired quality and
utilize all types of waste from human activities and create new
income-generating activities.</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 10pt; LINE-HEIGHT: 13pt"><SPAN
lang=EN-US><FONT style="FONT-SIZE: 11pt">With regards Paal W</FONT></SPAN></P>
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<DIV style="font-color: black"><B>From:</B> <A title=deankstill@gmail.com
href="mailto:deankstill@gmail.com">Dean Still</A> </DIV>
<DIV><B>Sent:</B> Saturday, August 24, 2013 5:25 PM</DIV>
<DIV><B>To:</B> <A title=stoves@lists.bioenergylists.org
href="mailto:stoves@lists.bioenergylists.org">Discussion of biomass cooking
stoves</A> </DIV>
<DIV><B>Subject:</B> Re: [Stoves] Blue Flame -- Natural Draft -- Rice
Husk</DIV></DIV></DIV>
<DIV> </DIV></DIV>
<DIV
style="FONT-SIZE: small; FONT-FAMILY: 'Calibri'; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; TEXT-DECORATION: none; DISPLAY: inline">
<DIV dir=ltr>Hi All,
<DIV> </DIV>
<DIV>In my limited experience, blue flame is seen in TLUDs when the char starts
to burn. Yellow flame is the hottest but is also associated with the production
of black carbon. Reddish flame seems to be cleaner than yellow with less CO and
PM. I'm thinking that cooling the flame results in less black carbon. </DIV>
<DIV> </DIV>
<DIV>As far as color goes, a great looking combination is blue at the top of the
TLUD (burning the CO) and orange at the bottom when burning the char. Looks
neat.</DIV>
<DIV> </DIV>
<DIV>Best,</DIV>
<DIV> </DIV>
<DIV>Dean</DIV></DIV>
<DIV class=gmail_extra><BR><BR>
<DIV class=gmail_quote>On Fri, Aug 23, 2013 at 4:46 PM, Marc-Antoine Pare <SPAN
dir=ltr><<A href="mailto:marcpare0@gmail.com"
target=_blank>marcpare0@gmail.com</A>></SPAN> wrote:<BR>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<DIV dir=ltr>
<DIV>Thanks all. As I mentioned, details coming quite soon. I've been
documenting daily since the start of the project, and plan to keep it
up.</DIV>
<DIV> </DIV>
<DIV>Dean, do you have any documentation of the blue flames that are "often"
seen?</DIV>
<DIV> </DIV>
<DIV>I haven't been able to find a photo or paper on it. Many people
<I>searching </I>for blue flames.</DIV>
<DIV> </DIV>
<DIV>Of course, you get blue flames when you are burning charcoal in a wood
stove. I saw blue flames both at the beginning and ending phases of the runs,
so it's not just char burning that's responsible (which is high CO, as you
mention)</DIV>
<DIV> </DIV>
<DIV class=gmail_extra>
<DIV>
<DIV dir=ltr>marc
<DIV><A href="http://notwandering.com"
target=_blank>notwandering.com</A></DIV></DIV></DIV><BR><BR>
<DIV class=gmail_quote>On Fri, Aug 23, 2013 at 3:54 PM, Dean Still <SPAN
dir=ltr><<A href="mailto:deankstill@gmail.com"
target=_blank>deankstill@gmail.com</A>></SPAN> wrote:<BR>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<DIV dir=ltr>Hi Marc,
<DIV> </DIV>
<DIV>Blue flame in natural draft stoves is often seen when burning CO. It
does not necessarily mean that the flame is very hot or very clean as in
forced air stoves.</DIV>
<DIV> </DIV>
<DIV>Best,</DIV>
<DIV> </DIV>
<DIV>Dean<BR>
<DIV class=gmail_extra><BR><BR>
<DIV class=gmail_quote>
<DIV>
<DIV>On Thu, Aug 22, 2013 at 8:33 PM, Marc-Antoine Pare <SPAN dir=ltr><<A
href="mailto:marcpare0@gmail.com"
target=_blank>marcpare0@gmail.com</A>></SPAN> wrote:<BR></DIV></DIV>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<DIV>
<DIV>
<DIV dir=ltr>
<DIV>Hi everyone,</DIV>
<DIV> </DIV>
<DIV>I've managed to repeat blue flames consistently in a rice husk stove
using only natural draft.</DIV>
<DIV> </DIV>
<DIV>Anyone seen this before? I am only aware of forced air stoves that
achieve blue flames.</DIV>
<DIV> </DIV>
<DIV>The photo below is just a teaser. The lighting is terrible and you
can't make out the column of blue flame because I'm shooting straight
down.</DIV>
<DIV> </DIV>
<DIV>The smell is also quite motivating. Usually you get acquainted with
the "smell of defeat" with rice husk, since poor combustion smells quite
strong. So far, achieving odor on par with forced air units.</DIV>
<DIV> </DIV>
<DIV>More soon...<BR></DIV>
<DIV>This will be part of a completely Open Source project</DIV>
<DIV> </DIV>
<DIV><IMG alt="Inline image 1"><BR></DIV>
<DIV> </DIV>
<DIV>
<DIV dir=ltr>marc
<DIV><A href="http://notwandering.com"
target=_blank>notwandering.com</A></DIV></DIV></DIV></DIV>
<DIV> </DIV></DIV></DIV>
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