[Stoves] TEG-TLUD Re: Biochar and Uganda and Char-Making stoves
Ronal W. Larson
rongretlarson at comcast.net
Sun May 22 17:05:29 CDT 2016
Jock and ccs
Thanks. That is a great Ppt. It makes all the right points about carbon negativity. I will be sending this on to the geoengineering list as one of the strongest rationales for biochar that I have seen.
The only name for the stove I see is “Biochar Pellet Stove” = BPS. I am going to call Jerry’s a “WBPS” = Whitfield Biochar Pellet Stove.
Q1. There is probably a patent issue here, and similarly for a few TLUDs. But generally no patent issues for TLUDs. And the use of augers must be beyond patent protection now. Can you/Jerry clarify on intellectual property issues surrounding the WBPS?
Q2. One quibble on slide 9, which shows 9 Gt C/yr removed by BPSs - half (4.5 Gt C/yr) via char. Critics of biochar will say you can’t claim the upper equal amount which returns to the atmosphere as CO2. BECCS proponents claim superiority (incorrectly) because they can sequester (deep underground) a larger (and controversial) percentage. I think you need a modification to Slide 9 showing the out-year benefits - as the initial char placement can probably generate another follow-on 4.5 Gt C/yr. Or is this already in your (plural) thinking?
Q3. I don’t mind at all the number 9 Gt C/yr - but is there some further justification for that (large) number? Is it perhaps supposed to include co-production of biochar with bioliquids?
Q4. The obvious conclusion from the (again, excellent) slides, is that the WBPS has not yet found an angel investor. Can you (plural) say a little more on this. Is this the main holdup in going further now?
Q5. I was unaware that the pellet stove business needs help that biochar can supply. Is this commonly accepted? Was there discussion of this at the conference?
Q6. There is obviously a big advantage to not having a batch process. Could this hopper-auger approach be practical soon for industrial cook stoves?And even to overtake TLUDs eventually?
Q7. I like seeing the emphasis on reducing excess air. What sort of ratio of primary to secondary air is desired?
Q8 I’m ready to place a WBPS order. When will (or might) it be welcome? Do we have to wait for carbon credits? Some countries have some.
I better stop. Again - thanks.
Ron
> On May 22, 2016, at 2:49 PM, Jock Gill <jock at jockgill.com> wrote:
>
> Ron,
>
> Here is link to the slides I used in my presentation. Jerry gets most of the credit for the slides.
>
> http://www.forgreenheat.org/upload/upload/jock.pptx <http://www.forgreenheat.org/upload/upload/jock.pptx>
>
> I hope this will answer your questions. If you need more, just ask.
>
> The real barriers to a dynamic market for Biochar and pyrolysis are:
>
> 1. National
> Policy promoting CO2 drawdown at scale;
>
> 2. Incentives for the above;
>
> 3. Education about both of the above.
>
> The carrot, the stick, and the tambourine, as they say in Austria. We simply do not have any of the three at this time. The question whether we will, in time to make a difference.
>
> Jock Gill
> P. O. Box 3 <x-apple-data-detectors://0>
> Peacham, VT 05862 <x-apple-data-detectors://0>
>
> Cell: (617) 449-8111
>
> Extract CO2 from the atmosphere!
>
> On May 21, 2016, at 6:41 PM, Ronal W. Larson <rongretlarson at comcast.net <mailto:rongretlarson at comcast.net>> wrote:
>
>> Jock and ccs
>>
>> Thanks for the report.
>>
>> 1. At http://forgreenheat.blogspot.com/2016/04/photo-essay-of-2016-pellet-stove-design.html <http://forgreenheat.blogspot.com/2016/04/photo-essay-of-2016-pellet-stove-design.html>, about 3/4 down, the caption under your photo says:
>>
>> Jock Gill, representing Jerry Whitfield, speaking about the history of pellet stoves and the potential of biochar. (AGH) -
>>
>> Can you tell us a bit of what you said on both topics (and their intersection - through Jerry and yourself? For developed countries, but more if applicable.)
>>
>>
>> 2. In wandering around the site, there was a bit on one (small, developing country cook ) stove that I believe is getting good reviews and can make char: the Mimi Moto. (http://www.mimimoto.nl/ <http://www.mimimoto.nl/>) I was fortunate to see it in parts after the Ethos meeting - looked very well engineered. Was that the only such stove designed for developing country use there at this Alliance meeting?
>>
>> Ron
>>
>>
>>
>>> On May 21, 2016, at 7:22 AM, Jock Gill <jock at jockgill.com <mailto:jock at jockgill.com>> wrote:
>>>
>>> A very interesting stove built expressly to drive a TEG was shown in April at the Brookhaven National Lab. It had one moving part - a fan, burned pellets - could be fed from the top, was clean burning, powered some lights and charged a battery. It was not configures with a cooking surface, but that would be an easy upgrade. As designed, it did not produce Biochar. It was a 100% combustion device. It was designed for off the grid living and survivalist needs.
>>>
>>> The Alliance for Green Heat organized the event. Crispin and I both made presentations.
>>>
>>> I would post a photo, but the list does not support photos. Crispin can tell you more. Or ask John Ackerly of the Alliance.
>>>
>>> Cheers,
>>>
>>> Jock
>>>
>>> Jock Gill
>>> P. O. Box 3
>>> Peacham, VT 05862
>>>
>>> Cell: (617) 449-8111
>>>
>>> Extract CO2 from the atmosphere!
>>>
>>>
>>> On May 21, 2016, at 8:33 AM, Paul Anderson <psanders at ilstu.edu <mailto:psanders at ilstu.edu>> wrote:
>>>
>>>> Dear Hussein,
>>>>
>>>> Thanks for your thoughtful reply. As you can see from the separate replies by Andrew Heggie of the UK and Erich Knight in the USA, this topic is of interest to many of us.
>>>>
>>>> I and Nolbert of Awamu in Kampala are interested in your development of a workshop for stove production.
>>>>
>>>> The use of some of the generated power to operate a small fan on a TLUD-FA stove is of interest, but (as you surely know) natural draft units are also able to give the needed heat. BOTH avenues are of interest.
>>>>
>>>> How open are you to collaborative efforts about linking the TEG in TLUD stoves? The "TEG-TLUD" efforts could become collaborative or competitive, depending on the desires of those involved. I favor collaboration.
>>>>
>>>> Paul
>>>> Doc / Dr TLUD / Prof. Paul S. Anderson, PhD
>>>> Email: psanders at ilstu.edu <mailto:psanders at ilstu.edu>
>>>> Skype: paultlud Phone: +1-309-452-7072
>>>> Website: www.drtlud.com <http://www.drtlud.com/>
>>>> On 5/20/2016 6:45 PM, Nsamba Hussein Kisiki wrote:
>>>>> Dear Prof Paul,
>>>>>
>>>>> Many thanks for your email. I am indeed passionate about retrofitting TEGs to already existing improved cooking stoves to increase their functions especially for the end user to be able to watch a television, able to treat water (UV treatment), able to listen to radios, provide LED lighting as well as charge mobile phones alongside biochar production.
>>>>>
>>>>> I assume this will make great contributions to the developing world, considering the fact that about 1.4 billion people have no access to power and since 2.8billion people are expected to be relying on traditional biomass for cooking by 2030.
>>>>>
>>>>> I assume the above could be achieved if upto 5Wh of power can be achieved from a conventional cooking stove retrofitted with TEG.
>>>>>
>>>>> I am proposed to integrating the technology with the fan which could use could use less than a watt to supply more air to the stove and improve on the stove combustion efficiency, to further reduce on the dangers arising from indoor pollution.
>>>>>
>>>>>
>>>>> I would preferably be keen to succeed with the above initially with individual households, where of course custom designs can later be scaled up based on need and demand. From a research perceptive, It would be great to compare the performance of TEG retrofitted stoves with and without fans especially in terms of fuel consumption rate, duration of operation, emission levels, difference in costs, etc.
>>>>>
>>>>> All said, I believe this is something we can achieve as a team.
>>>>>
>>>>> PS: I have built up a centre in Uganda, with fabrication and welding facility, having capacity to fabricate the preferred stove designs, upto any required volume.
>>>>>
>>>>> My contributions towards this have so far been on personal levels,financed from personal savings and with no external funding but I am sure this is something that can be supported, considering the contributions it offers, to the World.
>>>>>
>>>>> Hussein
>>>>>
>>>>>
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>>>>>
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>>>>
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