Dr TLUD http://www.drtlud.com Paul S. Anderson, PhD Wed, 12 Jul 2017 19:23:10 +0000 en-US hourly 1 https://wordpress.org/?v=4.7.5 Classification of Stove Technologies and Fuels http://www.drtlud.com/2017/04/11/classification-stove-technologies-fuels/ Wed, 12 Apr 2017 01:14:19 +0000 http://www.drtlud.com/?p=3717 Dr TLUD has released a new and important paper entitled “Classification of Stove Technologies and Fuels”.  Please note that while the full document is four pages in length, there is a one-page version available as well. Anderson, 2017, PRT17300 Classification of Stove Technologies and Fuels (Version 1.0 — Four Pages) Anderson, 2017, PRT17301 Classification of Stove Technologies […]

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Dr TLUD has released a new and important paper entitled “Classification of Stove Technologies and Fuels”.  Please note that while the full document is four pages in length, there is a one-page version available as well.

Classification of Stove Technologies and FuelsAnderson, 2017, PRT17300 
Classification of Stove Technologies and Fuels (Version 1.0 — Four Pages)

Classification of Stove Technologies and Fuels (Version 1.0 - One Page)Anderson, 2017, PRT17301 
Classification of Stove Technologies and Fuels (Version 1.0 — One Page)

Note: This news post is dated 11 April 2017, and the PDF files above represent the original versions of the document as released on 10 and 11 April 2017 (four-page and one-page versions, respectively). Since there may be an updated version of either document released sometime in the future, readers may want to check (and possibly bookmark) the document’s Resource Page (click here for four-page version) (click here for one-page version). Resource pages always yield the most current version of a document.

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FC Trough Char-Maker of Corrugated Roofing Sheets (CRS) http://www.drtlud.com/2016/10/12/fc-trough-char-maker-corrugated-roofing-sheets-crs/ Wed, 12 Oct 2016 12:49:48 +0000 http://www.drtlud.com/?p=3373 Dr TLUD has released a report entitled FC Trough Char-Maker of Corrugated Roofing Sheets (CRS). Anderson, 2016, PRT16820 FC Trough Char-Maker of Corrugated Roofing Sheets (CRS) Note: This news post is dated 12 October 2016, and the PDF file above represents the original version of the document as released on 11 October 2016. Since there may […]

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Dr TLUD has released a report entitled FC Trough Char-Maker of Corrugated Roofing Sheets (CRS).

FC Tub Char-MakersAnderson, 2016, PRT16820 
FC Trough Char-Maker of Corrugated Roofing Sheets (CRS)

Note: This news post is dated 12 October 2016, and the PDF file above represents the original version of the document as released on 11 October 2016. Since there may be an updated version of the document released sometime in the future, readers may want to check (and possibly bookmark) this document’s Resource Page (click here). Resource pages always yield the most current version of a document.

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FC Tub Char-Makers http://www.drtlud.com/2016/10/03/fc-tub-char-makers/ Mon, 03 Oct 2016 19:06:48 +0000 http://www.drtlud.com/?p=3342 Dr TLUD has released a report about FC Tub Char-Makers.

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Dr TLUD has released a report about FC Tub Char-Makers.

FC Tub Char-MakersAnderson, 2016, PRT16810 
FC Tub Char-Makers

Note: This news post is dated 03 October 2016, and the PDF file above represents the original version of the document as released on 02 October 2016. Since there may be an updated version of the document released sometime in the future, readers may want to check (and possibly bookmark) this document’s Resource Page (click here). Resource pages always yield the most current version of a document.

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Case Study of Acceptance of Champion TLUD Gasifier Stoves in the Deganga Area, Ganges Delta, India http://www.drtlud.com/2016/09/30/deganga-tlud-project-2016/ Sat, 01 Oct 2016 05:04:54 +0000 http://www.drtlud.com/?p=3325 Dr TLUD and three co-authors are pleased to release a paper about a major case study of a highly-successful TLUD stove project in an impoverished area of India (Ganges Delta). Anderson, 2016, PRT16800 Case Study of Acceptance of Champion TLUD Gasifier Stoves in the Deganga Area, Ganges Delta, India Note: This news post is dated 30 […]

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Dr TLUD and three co-authors are pleased to release a paper about a major case study of a highly-successful TLUD stove project in an impoverished area of India (Ganges Delta).

Case Study of Acceptance of Champion TLUD Gasifier Stoves  in the Deganga Area, Ganges Delta, IndiaAnderson, 2016, PRT16800 
Case Study of Acceptance of Champion TLUD Gasifier Stoves in the Deganga Area, Ganges Delta, India

Note: This news post is dated 30 September 2016, and the PDF file above represents the original version of the document as released on this date. Since there may be an updated version of the document released sometime in the future, readers may want to check (and possibly bookmark) this document’s Resource Page (click here). Resource pages always yield the most current version of a document.

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Recent Rice Husk Gasifier (RHG) Technical Bulletins from Alexis Belonio and Ted Redelmeier of Carbon Neutral Commons http://www.drtlud.com/2016/06/06/rhg-tech-bulletins-10-2015-04-2016/ Mon, 06 Jun 2016 18:13:42 +0000 http://www.drtlud.com/?p=3067 On 03 June 2016, Alexis Belonio and Ted Redelmeier of Carbon Neutral Commons shared with Dr TLUD eight technical bulletins about recent developments related to rice husk gasifiers (RHG). [UPDATE: And on 15 June 2016, Belonio and Redelmeier shared with Dr TLUD three additional technical bulletins about gas conditioning and analyses of gas streams produced […]

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On 03 June 2016, Alexis Belonio and Ted Redelmeier of Carbon Neutral Commons shared with Dr TLUD eight technical bulletins about recent developments related to rice husk gasifiers (RHG). [UPDATE: And on 15 June 2016, Belonio and Redelmeier shared with Dr TLUD three additional technical bulletins about gas conditioning and analyses of gas streams produced by Model 40D rice husk gasifiers.] The eleven [updated total] bulletins are dated from October 2015 up to April 2016, and all are now available in the Dr TLUD Resource Archive (see links below). These items and many others can be found using the search form on the Dr TLUD Resources page.

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Biochar Production and Cook Stove Events in Oregon during August of 2016 http://www.drtlud.com/2016/05/05/oregon-events-august-2016/ Fri, 06 May 2016 06:46:14 +0000 http://www.drtlud.com/?p=2907  Information Last Updated: 05 August 2016.   Visitors are encouraged to bookmark and return to this page, as updates are likely.  The following is a chronological listing of Biochar and Cook Stove events in Oregon during August of 2016. Please be sure to visit the link given for each event, as each event has its […]

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 Information Last Updated: 05 August 2016.   Visitors are encouraged to bookmark and return to this page, as updates are likely. 

The following is a chronological listing of Biochar and Cook Stove events in Oregon during August of 2016. Please be sure to visit the link given for each event, as each event has its own registration and fee.

Stove Summit 2016 (InStove Headquarters, Cottage Grove, Oregon)

11 – 14 August 2016

This summer, InStove joins Stove Team International to co-host Stove Summit, a four-day conference dedicated to solving global humanitarian and environmental challenges through a combination of field demonstrations, capacity-building workshops, high-level sessions presented by clean-cooking thought leaders, and networking with stove-sector professionals in a relaxed environment at the InStove campus on the banks of the Willamette River. Please see Stove Summit 2016 for complete details, including registration.

Note: Stove Summit has a Call for Abstracts currently open for stove- or related-sector professionals who would like to present on a topic of interest to Stove Summit’s audience of academic, philanthropic, and development professionals. Interested individuals should fill out the 1-step abstract submission form at Stove Summit: Abstract Submission (deadline 10 July 2016).

Summer Stove Camp (Aprovecho Research Center, Cottage Grove, Oregon)

15 – 19 August 2016

The Summer Stove Camp at Aprovecho is about stoves for developing societies, including stoves that make char. Dean Still and Aprovecho staff coordinate this event that features (among other things) actual technical quantitative testing of stove emissions and stove efficiencies. Paul “Dr TLUD” Anderson assists. Please see Summer Stove Camp at Aprovecho for complete details, including registration.

In addition to the primary focus, there will be concurrent activities at the Stove Camp (lead by Dr TLUD and others) that focus on making char with appropriate, low-cost technology, especially with stoves. Note that this is preparatory for the two-day char production gathering (see next item). These activities could have a focus group working on issues of drying of feedstocks, including green (recently cut) wood and woodchips that have been rained upon.

Summer Stove Camp ends at noon on Friday (19 August 2016).

Char Production Gathering (Aprovecho Research Center, Cottage Grove, Oregon)

19 – 20 August 2016

Assembling on Friday, 19 August 2016, during the final hours of Summer Stove Camp at Aprovecho, Dr. Paul Anderson, Dr. Paul Taylor, and others will lead a two-day gathering focused on a broad array of char production technologies and related devices. This is a hands-on experience with discussions, experiments, and development of farm-size char-making units (DIY pyrolizers and commercially available units costing less than $3000), barrel-size char makers, kilns, retorts, flame curtain pyrolysis, TLUD cookstoves, and more. Device-related considerations include size, safety, construction materials, designs (cones, pyramids, covered barrel – C4 kiln, earth pits, etc.), labor of operation, quenching alternatives, fuel options, yield of char, char characteristics, and uses of available heat.

On Friday evening, all participants will be treated to a meal featuring food cooked by char-making stoves.

Here is a link to the PDF file containing the Schedule for the 2016 Char Production Gathering (click to view).

Important Note: All prospective attendees of the Char Production Gathering must register separately from the Summer Stove Camp, as each event has its own registration. Please visit http://drtlud.com/cpg2016 to register for the Char Production Gathering.

Potential Sunday Activities (Locations Near Cottage Grove or Corvallis, Oregon)

21 August 2016

Potential Sunday activities are not yet determined — they depend on the initiatives of the possible participants or small groups. These activities will NOT be officially sponsored (therefore without insurance or open registration, etc.). Examples COULD include a river-side picnic, a canoe outing, a drive to the Oregon coastline, scenic mountain drive or hike. Perhaps some “Oregonians” could offer some suggestions (using the two Listservs — see sidebar). Details are likely to be made available here as plans become known.

Pre-Conference Activities (Campus of Oregon State University, Corvallis, Oregon)

22 August 2016

The USBI Conference opening reception occurs in the evening. Pre-conference (morning and afternoon) activities include two workshops described at Workshops – Biochar 2016 (visit link).

US Biochar Initiative Conference (Campus of Oregon State University, Corvallis, Oregon)

22 – 25 August 2016

Please see US Biochar Initiative Conference for complete details, including registration. Note that Tuesday and Wednesday are filled with presentations, panels, etc. about all aspects of biochar. The topic of biochar production with low-cost equipment is only a small part of the USBI conference, but is the major focus (with hands-on experience) of the biochar-related Aprovecho activities (described above), so there will not be much duplication between the events.

 

[Hover over either map marker to reveal its address.]

 

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Re: [biochar] First retort kiln, smoking like crazy [Discussion] http://www.drtlud.com/2016/03/22/re-biochar-first-retort-kiln-smoking-like-crazy-2/ Wed, 23 Mar 2016 04:30:24 +0000 http://www.drtlud.com/?p=2900 Dear Ted and all, On 3/7/2016 3:59 PM, Ted White t@buildingserenity.org [biochar] wrote that he did not get a good result when:   I burned the TLUD 55 gal + 30 gal exactly as in the video. The video he followed was by Bob Wells:  https://www.youtube.com/watch?v=svNg5w7WY0k The process used is virtually identical to that shown by Peter […]

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Dear Ted and all,

On 3/7/2016 3:59 PM, Ted White t@buildingserenity.org [biochar] wrote that he
did not get a good result when:

 

I burned the TLUD 55 gal
+ 30 gal exactly as in the video.

The video he followed was by Bob Wells:
 https://www.youtube.com/watch?v=svNg5w7WY0k

The process used is virtually identical to that shown by Peter
Hirst:
https://www.youtube.com/watch?v=RXMUmby8PpU

Bob and Peter are the two principals in New England Biochar so it is
not surprising that they use the same method
I know both Bob and Peter very well and we are all certainly
friends.  Peter has heard from me a couple of years ago my comments
below, but I had not seen Bob’s video nor commented about it to him
before now.

Both videos show that the method can work, and Bob states that he
has done it successfully over a hundred times.   While not wanting
to “argue with success”, it is Ted’s unsuccessful experience that
prompts this message.

As Bob says in his video, there are many many ways and devices for
making biochar.   Certainly some will be better than others, and an
attitude of “it works for me” is quite acceptable.   Below is my
analysis:

1.  Retorts for production of biochar have pros and cons that are
too numerous to discuss here.  Place a barrel (30 gal) inside a
large barrel (55 gal).  That is well and good.

2.  But the isssue is the SOURCE OF THE HEAT THAT WILL PYROLYZE THE
BIOMASS IN THE INNER BARREL.   In a “standard” retort configuration,
the heat comes from a fire that is below the inner barrel, maybe
inside the larger barrel or maybe outside (and under) the larger
barrel.   There are many examples of this, including have a TLUD
unit UNDER the larger barrel, as shown by Doug Clayton and Hugh
McLaughlin:

https://www.youtube.com/watch?v=VDMWf4_Dyqo
(The height and weight of the unit can cause safety issues, so this
unit has not become common practice.)

3.  The problem with the Hirst-Wells configuration comes from using
the TLUD heat source ON TOP OF AND AROUND THE SIDES OF THE INNER
BARREL.   This TLUD heat is created very high in relation to the
inner barrel that needs to be heated.   In fact, if operated as a
TLUD, most of the TLUD heat is created at the level of the secondary
air holes, with the flames going up the chimney, not to the sides of
the inner barrel.  As a result, the heating of the biomass in the
inner barrel is quite slow in consideration of the amount of biomass
being consumed.  Note that although the TLUD method produces char in
the area between the two barrels, that char is later consumed by the
rising flames coming from the gased from the retort, so there is no
“double making of char (retort and TLUD char)” in this case.

4.  So, why does it work so well for Bob Wells?    Success is
probably because he is using kiln-dried off-cut wood from furniture
factories as his biomass.   He even reports that the vertical boards
between the two barrels are not even consumed by TLUD pyrolysis
before the combustible off-gas is coming from within the retort.

I could be incorrect.   We are all still learning.   But I have seen
replications of the Hirst-Wells technique failing to work in other
situations, resulting in incomplete pyrolysis of the biomass in the
retort barrel.   Some people are investing their time and money on a
method that does not have a solid foundation of science, that is,
put the heat under a retort and not on top or downward along the
sidewalls.  I would not recommend this method.

Paul

Doc  /  Dr TLUD  /  Prof. Paul S. Anderson, PhD
Email:  psanders@ilstu.edu
Skype:   paultlud    Phone: +1-309-452-7072
Website:  www.drtlud.com
On 3/8/2016 5:02 AM, Geoff Thomas
wind@iig.com.au [biochar] wrote:

 

Has to be this one, https://www.youtube.com/watch?v=svNg5w7WY0k

Good video, especially if you watch the 2nd
one, good work those guys are doing, very comprehensive in
their down home way, so pleasing to see this sort of local
but idealistic stuff happening in the USA, so different to
the politics.
Wondered if the Flame cap units would be
better to demonstrate but then again they had to lead over
to gasifying.
I must admit I have always found Tom’s little
Wood Gas Camp Stove to be the best demonstration of the
gasifying principle even though hard to demonstrate to a
larger group, because the fire front disappears, then the
gas comes and you can see it burning, – a real ‘Ahahh!’
moment, whereas theirs was mainly an aural message,
roaring chimney, but whatever, whatever works.
Thanks Ted.
Cheers, Geoff.

 

On 8 Mar 2016, at 2:34 pm, Paul Anderson
psanders@ilstu.edu
[biochar] <biochar@yahoogroups.com>
wrote:

 

Ted,

What is the video that was your guide?   (I
believe I know which one, but I will not
speculate.)

Paul

Doc  /  Dr TLUD  /  Prof. Paul S. Anderson, PhD
Email:  psanders@ilstu.edu
Skype:   paultlud    Phone: +1-309-452-7072
Website:  www.drtlud.com
On 3/7/2016 3:59
PM, Ted White t@buildingserenity.org [biochar] wrote:

 

I
burned the TLUD 55 gal + 30 gal exactly
as in the video.

There’s paint on the inside
and outside of both barrels. Burnt paint
comes out the chimney.

 

On Mar 7, 2016, at
4:57 PM, tobiah7989@gmail.com [biochar] <biochar@yahoogroups.com>
wrote:

 

Yeah, paint
is surely burning off, but
the smoke is coming out
the top of the stack. We
had some sprinkles here
for most of the morning,
so I’m thinking maybe the
wood was a bit damp?

 

 

 

__._,_.___

Posted by: Geoff Thomas
<wind@iig.com.au>


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Updated Publication: Origins, History, and Future of TLUD Micro-gasification and Cookstove Advancement (Version 2.0) http://www.drtlud.com/2016/02/17/updated-publication-tlud-history/ Thu, 18 Feb 2016 03:01:30 +0000 http://www.drtlud.com/?p=2874 Dr TLUD would like to announce the release of the second version of his document about the origins, history, and future of TLUD micro-gasification and cookstove advancement. Co-authored by James S. Schoner, this version features expanded content with photographs, diagrams, and a more comprehensive bibliography. Anderson, 2016, PRT15700 Origins, History, and Future of TLUD Micro-gasification and […]

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Dr TLUD would like to announce the release of the second version of his document about the origins, history, and future of TLUD micro-gasification and cookstove advancement. Co-authored by James S. Schoner, this version features expanded content with photographs, diagrams, and a more comprehensive bibliography.

Origins, History, and Future of TLUD Micro-gasification and Cookstove Advancement (Version 2.0)Anderson, 2016, PRT15700 
Origins, History, and Future of TLUD Micro-gasification and Cookstove Advancement (Version 2.0)

Note: This post is dated 17 February 2016, and the link above reflects the latest version (Version 2.0) of this document at this time. Since there will be future versions, please bookmark this document’s Resource Page (click here). Resource pages always yield the latest version of a document.

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New Publication: Anatomy of the PapaBrick Stove http://www.drtlud.com/2015/11/23/anatomy-of-the-papabrick-stove/ Tue, 24 Nov 2015 00:05:49 +0000 http://www.drtlud.com/?p=2707 Please see our newest resource item for Joshua B. Guinto’s (JED’s) recent publication, Anatomy of the PapaBrick Stove (please click here).

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Please see our newest resource item for Joshua B. Guinto’s (JED’s) recent publication, Anatomy of the PapaBrick Stove (please click here).

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Patung-Patong: The Brick Stove Carbonizer; Food Business Model (January to June 2015) http://www.drtlud.com/2015/11/23/patung-patong-the-brick-stove-carbonizer-january-to-june-2015/ Mon, 23 Nov 2015 23:15:18 +0000 http://www.drtlud.com/?p=2703 Please see our newest resource item for Joshua B. Guinto’s (JED’s) slideshow for the Patung-Patong Brick Stove Carbonizer; Food Business Model (January to June 2015) (please click here).

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Please see our newest resource item for Joshua B. Guinto’s (JED’s) slideshow for the Patung-Patong Brick Stove Carbonizer; Food Business Model (January to June 2015) (please click here).

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