[Stoves] ETHOS - Day 3

Ronal W. Larson rongretlarson at comcast.net
Fri Feb 6 09:11:26 CST 2015


 

Stoves List

 

Report on Third Day  at ETHOS (Sunday, 24 Jan, 2015) 

 

               Apologies for long delay in getting this finished.  Excuse is
having beeb occupied at Aprovecho stove camp (few words on this at end) and
then getting ready for sudden stove-related trip to India - leaving in 5
days.  Hectic time getting ready.  Would appreciate hearing anything special
on stove activity in India.

 

7:30-9:00 AM   Again, an early chance to talk to stove manufacturers and
researchers.  Most impressed with several TLUD designs from manufacturers
that Paul Anderson is working with.  Saw them a little in operation at
Aprovecho Tuesday (Paul only there one day)

 

               Word of caution:  The following only hints at the vast amount
of data to be available when the PPts are up at the ETHOS site.  There is
excellent work being done now.

 

I.  Remaining four talks from DoE contractors  (9:00-10:30 AM)

               Ia.  Jesica Tryner at CSU.  Her work has been experimental
(Her recent paper is at
http://www.sciencedirect.com/science/article/pii/S0973082614000817 ).  This
was more on how her paper fits into an analytical approach using CFD at CSU,
with parts at Princeton.  Very promising.

               Ib.  Vi  Rapp   Experimental investigation of the standard
and an improved (via an interior disk they called an "umbrella").   One goal
is to drop PM2.5 by 10X.  Another to introduce thermoelectric generator
(TEG).  Good data coming from 10 tests per stove.  Typically operating at 5
kW.

               1c.  Dean Still  Repeat 10 minute version of previous night's
plenary on 5 stoves. Is writing a book on these.  Drawings available.  All
public domain.

               1d..  Michael Johnson   (Berkeley Air Monitoring).   Brief
summary of their development of present Monitoring Technologies.   Both
software and hardware

               Question period:  Ashok  Gadgil:    Noted that emission data
is typically factors of 3-4 time worse when data is taken in the field.
Discussion on why (and also later in day)

               Question on gaming of EPA (Jim Jetter) tests.  TLUDs can get
low scores by using exact amount of needed fuel - not what is likely in
field use.   Converse example also given.

 

 

 II.   First  Parallel Session  10:30-11:30

               IIa.  Dana Charon (Berkeley Air Monitoring);  working with
CSU and Winrock.  Described Africa Clean Cooking Energy Solutions (ACCES)
Initiative.  Results to appear in GACC's Clean Cooking Catalog.  Comparing
stoves in Senegal,  Uganda, DRC(Congo) to help World Bank.  Criteria are
emissions, efficiency, safety.  Threshold score cards for support from World
Bank in time periods of up to 2016, to 2019 and 2020+.

               IIb   Cecil Cook   No ppt.  Anthropologist who has lived in
South Africa for many years - emphasis on Appropriate Technology; has worked
with Crispin.  Expressed concern that many stove programs are not taking
advantage of local knowledge.  Best woods as an example.

               Iic   Adrian Padt  (added to program) of Rocket Works Pty
Ltd;  Durban;  has an interesting design for in-field assembly of
flat-shipped parts.  All tabs;  no screws and bolts.  Described what drives
the need for improved stoves  (eg.  Disaster;  customers looking for
"Grooviness",  not climate at all.)    Talked of need for finance for many
different parts of supply chain - beyond his area of manufacture

 

III  Second Parallel 11:30-12:30

               IIIa.   Charity Garland  Berkeley Air Monitoring Group;   The
Impact of the Philips Stove on Emissions  and Fuel Use in Gisenyi, Rwanda.
Interesting because this was report on UCT  Uncontrolled Cooking Test.
Stove under test was fan type that can be seen at http://www.inyenyeri.org/.
Some good slides.

               IIIb.   Ryan Thompson (MS (almost) grad under Prof Tami Bond
(Illinois) described test results in multiple remote villages in China -
many using coal.  Described use of rubber tires and natural rubber for
lighting;   Found 93% of PM in 20% of time  (the first part after lighting -
often not reported.  Ryan, formerly with Aprovecho is now doing business
based on his extensive test equipment expertise through ryan at mtnaire.com.

               IIIc.    Michael Johnson;  Effort just starting in two parts
of India, cooperating with GIZ

Many excellent slides on metrics from extensive in-field (not lab) data.
Emphasis on having a really  big data set.  Maybe also EPA STAR funding?

               Question period:   Christa Roth:   "User is the problem"  (re
disagreements with lab)

 

2-3pm Facilitated Discussion: How Do We Make the Most Progress in 2015? 

               I missed much of this.  Hope someone can add important
points.

 

3-3:30pm ETHOS Board Summary (lecture hall).

               Much of this led by John Mitchell (EPA- D.C.).  Again, poor
notes here.  But I perceive that the new ETHOS board will be doing a good
job.

 

Added note:   All of us could only go to one of the three parallel sessions
each time period.  The full (still draft) agenda showing the missing ones is
at: 

http://www.ethoscon.com/wp-content/uploads/2015/01/ETHOS-2015-DRAFT-schedule
.pdf

 

3:00 to 5:00  Outdoor testing "Fair".  Maybe a dozen stoves in operation.
Someone (Aprovecho??) supplied needed ingredients for "SMORS".  Jon and Flip
Anderson supplied excellent bread from converted grill oven heated from
below by their Rccket design.  Hope others can supply a few photos.

 

My overall summary of the three days:  The stove field has advanced a great
deal recently - both in lab and field studies.  The 8 (9?) DoE projects (not
to be continued because of lack of Congressional support) have provided a
big boost to understanding.  Hopefully GACC can pick up some of slack.
World Bank and others are helping.

 

Some Observations on Aprovecho "Camp" on Tuesday-Thursday

               I drove down with Kirk Harris and Cecil Cook all day Monday.
About 10-15 (?) others there.  Paul Anderson for one day (several TLUDs).
Full Apro staff as well - of about 8 (??) - three or four full time helping
on testing.  Each AM Dean Still led a discussion and worked on assignments.
Most testing seemed to be done by Joe James (rice husk TLUD), Kirk Harris
(TLUD - one of Dean's "five"), Adrian Padt (South Africa manufacturer).
Harder to test, but getting lots of attention were Jon and Flip Anderson,
mostly with several large mud stove ovens.

               Those not testing besides myself were Larry Winiarski,
Christa Roth, and Dorothea Otremba (GIZ - one interesting topic was
"geopolymers - light weight insulators).  Apologies for missing a few other
attendee names - several from out of US.  On last day, were joined for much
of day by about 10 students from the other nearby Aprovecho (doing mostly
Appropriate Technology - Permaculture;  not stoves).  

               I continue to be amazed at how large a presence Apro has in
the stove world. - all over the world.

 

Repeat request for others to add to this summary.

 

Ron

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20150206/636a5b8b/attachment.html>


More information about the Stoves mailing list