[Gasification] Gasification Digest, Vol 16, Issue 16
Wayne hipkin
whipkin at gmail.com
Fri Dec 23 18:10:38 CST 2011
hi Again Dry Pine@ 12/ 15% MC Chipped Any Advantage Or Optimum Chip
Size If I Screen Them I Understand 2by2" Cube MayB Preferred But??
Are The Fines IE Sawdust Small bits,o;bark To seperate And Utillize
A Rundown or Were2 Look Appreciative
On 12/23/11, Wayne hipkin <whipkin at gmail.com> wrote:
> 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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>> ------------------------------
>>
>> 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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>>> 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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