[Stoves] Trip to Aprovecho

[Anderson, Paul]

Dear Stovers on the Stoves Listserv,

There are various messages between stovers that are not sent to the Stoves Listserv.   With permission of the participants, I (and probably others) will be sending occasionally to the List Serv some interesting messages so that Stovers everywhere can appreciate them.

The message below will help everyone understand and appreciate the great work by Kirk Harris with TLUD stoves, and also hear about the exciting entry that Aprovecho has in the heating-stove contest that is happening in Washington, DC, in the next few days (about which we await comments from those who attend and the results!!!)

Paul

Doc / Dr TLUD / Paul S. Anderson, PhD
Exec. Dir. of Juntos Energy Solutions NFP
Email:  psanders at ilstu.edu<mailto:psanders at ilstu.edu>       Skype:   paultlud
Phone:  Office: 309-452-7072    Mobile: 309-531-4434
Website:   www.drtlud.com<http://www.drtlud.com>

From: Kirk H. <gkharris316 at comcast.net>
Sent: Wednesday, November 7, 2018 5:31 PM
To: Anderson, Paul <psanders at ilstu.edu> and others
Subject: Trip to Aprovecho

All,

I have recently returned from Aprovecho where I spent a week running 17 tests on the new Wonderwerk stove.  I learned that the additive burner arrangement works as well as I had hoped.  Most every test had flat line particulates.  I learned some smaller improvements in the clean-up burner and positioning of various components.  I  learned that the small fan works really well for a tall fuel stack, but can easily overdo it and make to much wood gas for the burners to burn, and conceptualized a way of adding forced secondary air.  I learned that a starter mix of 2/3 pellets to 1/3 pyrolyzed charcoal pellets, wet with alcohol or alcohol gel, gives flatline particulates during test start-ups whereas pellets alone produces a burst of particulates and charcoal alone is slow to start pyrolysis.  All in all a very fruitful time.

I was there to see the testing of the Aprovecho staffs entrance into a competition in Washington DC.  The self-feeding rocket design had TEGs to generate electricity and an electro static cleaner on the chimney.  There were many aluminum fins to cool the TEGs and to cool the wood so the fire would not burn back up the wood out of the stove.  The stove worked really well once the fins were installed to cool the wood.  The emissions were excellent for a rocket stove.  A sterling engine was made by the brother of the technician who helped design the stove.  He lives in Washington DC, and it was to be mounted on the stove there.  I would like to have seen that.

I was invited to a celebration dinner for the completion of the stove.  The food and companionship were both wonderful.

Kirk



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