[Gasification] Gasification Digest, Vol 16, Issue 16
Wayne hipkin
whipkin at gmail.com
Fri Dec 23 18:00:31 CST 2011
hiya Guy s With all the THANK YOU S Going Round A Warm Thanx Another
Year of INSIGHTS And Answerd Question A Super Job + All The Work You
Guys Commit Appreciated Someone Had said they may have 50KW
Gasifier 4Sell Pls Cont Ahappy +A Merry Humble y Ever ThankFull
Has Anyone Bin Workin On Or With Canola Straw 2 Different
Redilly Available Fuels Beetle kill Pine + Rape Straw Bless Ya
Again
On 12/22/11, gasification-request at lists.bioenergylists.org
<gasification-request at lists.bioenergylists.org> wrote:
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> Today's Topics:
>
> 1. Merry Christmas in font (Warner Kimo Sutton)
> 2. Re: Happy Holidays (Richard Bockwinkel)
> 3. Weight, power and temperature Tests (Thomas Reed)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 22 Dec 2011 11:02:25 -1000
> From: Warner Kimo Sutton <kimos at me.com>
> To: Discussion of biomass pyrolysis and gasification
> <gasification at lists.bioenergylists.org>
> Subject: [Gasification] Merry Christmas in font
> Message-ID: <A59BBBD7-6380-40DA-B852-FC679FE40007 at me.com>
> Content-Type: text/plain; charset="utf-8"
>
> ?*????*??*??*????*?????*????*??*?*????*??*?
> ?? _??_*????/? \*????*??*?*????*??*?*????*??*?
> ?. (?? ??)*.?*/?.?\*?.*?_?_____*???*??*?*????*??*?
> .? ( . ? . ) ??./? '? ' ?\.?*./______/~?*????*??*?*? ??*?
> *(...'?'.. ) *????????.????????????*????*??* ?
>
> Mele Kalikimaka, Happy Hanukkah, and have a great Kwanzaa.
> Houoli makahiki hou!
>
> Aloha,
> Warner Kimo Sutton CEO
> Diamond Head Renewable Resources
> www.diamondheadrr.com
>
> On Dec 22, 2011, at 7:44 AM, Tom Miles wrote:
>
>
> <image001.jpg>
> Many thanks to all who have participated on these Bioenergylists.org
> discussion lists.
>
> Tom Miles
> Erin Rasmussen
> Owner and Sponsor of Bioenergylists.org
>
> T R Miles Technical Consultants, Inc.
> Portland, OR
> tmiles at trmiles.com
> www.trmiles.com
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>
>
>
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> ------------------------------
>
> Message: 2
> Date: Thu, 22 Dec 2011 15:11:14 -0600
> From: Richard Bockwinkel <Bock at erbsteam.com>
> To: Discussion of biomass pyrolysis and gasification
> <gasification at lists.bioenergylists.org>
> Cc: 'For Discussion of Anaerobic Digestion'
> <digestion at lists.bioenergylists.org>, 'Discussion of biomass cooking
> stoves' <stoves at lists.bioenergylists.org>
> Subject: Re: [Gasification] Happy Holidays
> Message-ID: <F61213DB-36D1-4C6B-A55A-58F93B2A1937 at erbsteam.com>
> Content-Type: text/plain; charset="us-ascii"
>
> Thanks and same to you and all on the LIST!!!
>
>
> Richard Bockwinkel
> ERB & Associates, Inc.
>
> 913.579.7688
> Bock at erbsteam.com
>
>
>
>
> On Dec 22, 2011, at 11:44 AM, Tom Miles wrote:
>
>>
>> <image001.jpg>
>> Many thanks to all who have participated on these Bioenergylists.org
>> discussion lists.
>>
>> Tom Miles
>> Erin Rasmussen
>> Owner and Sponsor of Bioenergylists.org
>>
>> T R Miles Technical Consultants, Inc.
>> Portland, OR
>> tmiles at trmiles.com
>> www.trmiles.com
>>
>>
>>
>>
>> _______________________________________________
>> Gasification mailing list
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>> to Send a Message to the list, use the email address
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>> for more Gasifiers, News and Information see our web site:
>> http://gasifiers.bioenergylists.org/
>
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> ------------------------------
>
> Message: 3
> Date: Thu, 22 Dec 2011 14:17:08 -0800
> From: Thomas Reed <tombreed2010 at gmail.com>
> To: Tom Reed <tombreed2010 at gmail.com>, Discussion of biomass pyrolysis
> and gasification <gasification at lists.bioenergylists.org>, STOVES
> <stoves-request at lists.bioenergylists.org>, Chuck Stevenson
> <chuckmunk at comcast.net>
> Subject: [Gasification] Weight, power and temperature Tests
> Message-ID: <3C8C1738-21BB-4ACD-B5E2-47C3A0917BD3 at gmail.com>
> Content-Type: text/plain; charset="us-ascii"
>
> Dear Gasers and Stovers
>
> Someone asked recently how hot the TLUD stoves got during operation. I made
> a number of tests below on gasifying several fuels. The highest temperature
> I measured during the pyrolysis operation with the Cen-Tech IR pyrometers
> was 190 C. However, when the yellow flame disappeared and charcoal was
> gasifying the temperature rose to 350C.
>
> MESQUITE, LIGNIN, AND PINE TLUD PYROLYSIS
>
> THE FOLLOWING FUELS WERE BURNED IN A 4" D X 6" TALL TLUD STOVE AND THE
> WEIGHT CHANGE RECORDED.
>
>
>
>
>
>
>
>
>
> Note: The tests were done on a scale weighing to 1/2 g and time recorded
> every minute.
>
> Dry wood typically has an energy content of 21 kJ/g. However in the TLUD
> stove only the cellulose contributes is vaporized, approximately 16 kJ/g of
> weight loss, while the lignin is carbonized to charcoal.
>
> MESQUITE
> Mesquite is said to have a very high lignin content, compared to other
> woods, 64%!
> If lignin is the precursor of charcoal, mesquite should give a very high
> yield of charcoal.
>
> 152 g of mesquite chips were placed in the Wanderer stove and ignited with
> the propane torch.
>
> Time. Weight. DW (weight change)
> 0. 152
> 1. 141. 11 Mesquite Chunks too big, requires
> lots of ignition with propane torch
> 2. 135. 14
> 3. 128. 7
> 4. 121. 7
> 5. 110. 11
> 6. 98. 12
> 7. 86. . 12. Highest Temperature with Cen-Tech
> IR pyrometers 190 C.
> 8. 72. 14
> 9. 60. 12
> 10. 46. 14
> 11. 34.5. 11.5
> 12. 21. 13.5
> 13. 9. 12. End of yellow flame, put charcoal in
> can and weighed
>
> Yield: 38 g ==> 38/152= 25.0%
>
> COMMENT - this is a High charcoal yield, but not enormous. The pine chunks
> below yielded 15% charcoal.
>
> <><><><>
>
> Same experiment with lignin chunks from a brown forest lignin log broken up
> by hand. Incredibly light. Probably the first time anyone ever gasified
> pure lignin - and maybe the last. It is a very low density fuel, since all
> the cellulose was eaten by microorganisms.
>
>
> Time wt. dW
> 0. 54
> 1. 47. 7
> 2. 40. 7
> 3. 32.5. 7.5 Some soot in flame
> 4. 27.5. 5
> 4.5. 26. 1.5 Yellow out
>
> Yield 6.5 g, 12%.
>
> I have long believed that it is the lignin that is the precursor to
> charcoal.
> This experiment suggeststhis is probably not true.
>
> <><><><>
>
> Pine block - Wanderer
>
> 3/4 sq x1" pine blocks
>
> 0. 96.5. dW
> 1. 89. 7.5
> 2. 85. 4.0
> 3. 80.5. 4.5
> 4. 76 4.5. Can maximum temperature 190C.
> 5. 71. 5
> 6. 65. 6
> 7. 57. 8
> 8. 51.5. 5.5
> 9. 46. 6.5
> 10. 39. 7 Flame low
> 11. 31.5. 7.5 Flame much higher, end effect
> 12. 22. 9.5 big fire
> 13. 13. 9 All block surfaces on fire, but
> centers still outgasing
> 14. 5.5. 7.5 Can temp 350 with Cen-Tech IR
> pyrometers
>
> 15 g charcoal = 15.5%
>
> Note: dry wood has a typical heat of combustion of 21 kJ/g, so complete
> combustion would generate (21000/60) 350 Watts/Gm-min.
>
> However in the TLUD this is reduced to maybe 16 kJ/Gm-min or 270
> Watts/g-min, because mostly cellulose and water are volatilized and the
> remaining charcoal generates 26 kJ/g, or 433 W/g-min.
>
> So a burn rate of 12 g/min would yield a (270 X 12) 3.2 kW flame.
> Fuel bed 4"D x 3" deep
>
> I hope this information is useful, but needs digesting.
>
> Tom Reed
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> End of Gasification Digest, Vol 16, Issue 16
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