Dear Doug Great to have your notes to remind me of the great/Frigid week. It wasn't just below freezing; it was below ZERO every day.
Tom Dr Thomas B Reed President, The Biomass Energy Foundation www.Woodgas.com On Feb 14, 2011, at 11:16 AM, Doug Brethower <[email protected]> wrote: > Officially prepared for the National Biomass Producers Association. > > Presented to this list in hopes of more widespread fueling of thought, > commentary, discussion, corrections and critique. > > CHAB Presenters included: > > Paul Anderson > Dr. TLUD, maximizing efficiency of biomass to heat energy and biochar > conversion, fuels characterization. > > -- Introduced the "Joy to the World" institutional scale smokeless biomass > cooking stove developed at the first CHAB camp by Amanda Joy. Campers > discovered that this stove also makes an excellent high throughput cooker for > biomass to biochar conversion inside a retort chamber. > -- Worked with camp attendee aka "trench foot" on trench pyrolyzer design. > Goal is maximum biochar production "in the trenches", an on site trench in > locations with plentiful biomass waste in need of conversion. 14 percent > biochar was achieved on the second and final run. Some interesting scale up > designs and heat uses were gathered from subsequent inputs by camp attendees. > -- Detailed the design considerations of his Champion cookstove, a > competition winning natural draft gasifier stove that has just began > commercial production and was used to prepare breakfast each day during the > camp. > -- Nothing new under the sun, the Paal Wendelbo story, simultaneous and > separate development of TLUD technology. > > > Hugh McLaughlin > Biochar characterization, biomass to energy calculations, biomass in > lighting applications (to replace fire, lamps, light bulbs), stove design > considerations, fabrication techniques. > > --General fabrication instruction, calculations, theory, design, wear > gloves, etc throughout the camp, aka Uncle Buck. > > > Tom Reed > General info and history of gasification with personal anecdotes going back > to Harry LaFontaine. Limelight lighting, rare earth lighting, "Vagabond" > cookstove, a two-can natural draft design, built from two small corn cans. > Insights and inspiration, including background accompaniment on the mouth > harp to keep campers entertained during particularly long-winded mass flow > and energy calculations. > > Paul Wever, commercial application of gasification technology, > -- TMHJ camp stove, hardware store components, thirty minutes hand > fabrication, boils water in 10 minutes with a few handfuls of woodchips and > no smoke > -- A commercial gas grille that uses biomass pyrolysis and natural draft > to replace propane in a dual cooktop unit. Used to prepare lunch each day > for camp attendees. > -- An upsize of the gas grille technique, added forced draft to produce > 200,000 btu heat energy plus ~ 19 pounds per hour of biochar. Commercially > available in two versions: > --Industrial version, fully automated, fits in a 20 foot shipping > container, output can be doubled and still fit in 20 foot container. A > commercial unit is operational at Freedom Field Energy in Rockford, IL. > --Manual feed version of the same combustion unit. Fits in the bed of > a pickup truck. Includes augers and programmable automated auger controls. > -- Pelletizing, pucks, briquettes, blocks, bales, biomass densification for > transport and feeding > -- Community scale biomass conversion to energy and biochar for profit > > Bill Ayres, big picture of biomass energy production. Official judge and > timer for final day biomass to Combined Heat and Biochar competition. > > The competition promotes practical application of lessons learned during the > camp using stoves hand fabricated from readily available materials > (obtainium). Bringing 2 liters of water to a boil quickly, then sustaining a > simmer for the longest time using 500 grams of biomass fuel was the essence > of the competition. > > Kathy Nafie of the Biomass Energy Foundation won both preliminary > competitions. At the same time she kept campers loaded up on nutritious, > delicious hot eats from the "Woodgas Grille" in suburban Goodfield, IL. The > outdoor temp until the last day of the camp was below freezing, way below > freezing at night. Kathy's value to the camp - priceless. > > Hugh McLaughlin won the final competition with sunflower seeds, tinsnips, two > #10 cans, and a small computer sized fan operating on a 9 volt battery. Boil > was achieved in slightly over 10 minutes, simmer lasted for 100 minutes. > Final char was 18 percent. > > I left my notes on top of a file cabinet, so this is from memory. When the > notes arrive I will check the math to see if Hugh sneaked in a perpetual > motion machine. > > Verticalized uses of biochar, essentially "loading up" biochar for value > added applications, compost, em, bokashi was a hot topic outside the daily > learning environment. > > Sincerely, > Doug Brethower, long time lurker > _______________________________________________ > Gasification mailing list > > to Send a Message to the list, use the email address > [email protected] > > to UNSUBSCRIBE or Change your List Settings use the web page > http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org > > for more Gasifiers, News and Information see our web site: > http://gasifiers.bioenergylists.org/ _______________________________________________ Gasification mailing list to Send a Message to the list, use the email address [email protected] to UNSUBSCRIBE or Change your List Settings use the web page http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org for more Gasifiers, News and Information see our web site: http://gasifiers.bioenergylists.org/
