[Gasification] [biochar] Re: Chunking wood for small scale biochar production, fotos !
psanders at ilstu.edu
Wed Jan 8 13:58:13 CST 2014
I want to know about any and all reasonable devices that work. Reality
now trumps specifications and expenses of R&D.
Personally, I lack the mechanical knowledge and the time to do this
myself. But I KNOW it is important, and I turn to my friends on the
Listservs, with gratitude for whatever can be accomplished.
Doc / Dr TLUD / Prof. Paul S. Anderson, PhD
Email: psanders at ilstu.edu
Skype: paultlud Phone: +1-309-452-7072
On 1/8/2014 12:45 PM, Kevin wrote:
> Dear Paul
> As per my previous e-mail, (copy appended below the ******** line) you
> really should describe the job you want done, so that designers would
> at least have some "starting specifications" on which to base their
> estimated cost.
> Do you want someone to design and build them for you to re-sell, or do
> you want a suitable "set of plans" that you could sell or give to
> people.? Or perhaps you have some other arrangement in mind?
> Best wishes,
> ----- Original Message -----
> *From:* Paul Anderson <mailto:psanders at ilstu.edu>
> *To:* gasification at lists.bioenergylists.org
> <mailto:gasification at lists.bioenergylists.org> ; Discussion of
> biomass cooking stoves <mailto:stoves at lists.bioenergylists.org> ;
> biochar at yahoogroups.com <mailto:biochar at yahoogroups.com> ; Bob
> Fairchild <mailto:solarbobky at yahoo.com> ; Ron Vanetten
> <mailto:rsvanetten at hotmail.com>
> *Sent:* Wednesday, January 08, 2014 2:17 PM
> *Subject:* [biochar] Re: [Gasification] Chunking wood for small
> scale biochar production, fotos !
> To all,
> Yes, it certainly seems to be a chunker. Yes, the wood seem
> weak, but the machine seems adequate.
> See also:
> Seem to be in some Slavic language? Do we have any further
> information? All seems sufficiently inexpensive for many of us,
> and could be appropriate for someone in a developing country to
> make a living going around chunking people's low-value branches.
> And there seem to be other videos suggested by YouTube.
> I request assistance from someone(s) with mechanical talents to
> help bring such technology to our understands (and ability to
> replicate and improve as necessary).
> The issue is not the power source (electric or small gasoline or
> ??). The issue is the breaking and/or chunking of such biomass.
> Doc / Dr TLUD / Prof. Paul S. Anderson, PhD
> Email:psanders at ilstu.edu
> Skype: paultlud Phone: +1-309-452-7072
> On 1/7/2014 10:35 PM, Pete & Sheri wrote:
>> I'd certainly call that one a chunker. But I noticed that at
>> least one of the branches broke in half as it was fed in. Maybe
>> some pretty rotten wood?
>> If the machine can do that kind of work with solid wood it seems
>> to be a good contender.
>> At least for a little while. (It does jump around some).
>> Pete Stanaitis
>> [mailto:gasification-bounces at lists.bioenergylists.org] *On Behalf
>> Of *Cesar Casanova
>> *Sent:* Tuesday, January 07, 2014 9:25 PM
>> *To:* Discussion of biomass pyrolysis and gasification
>> *Subject:* Re: [Gasification] Chunking wood for small scale
>> biochar production, fotos !
>> Hi, Is this a chunker or wood chipper?
>> ----- Original Message -----
>> *From:* Kevin <mailto:kchisholm at seaside.ns.ca>
>> *To:* biochar at yahoogroups.com
>> <mailto:biochar at yahoogroups.com> ; Mark Ludlow
>> <mailto:mark at ludlow.com> ; 'energiesnaturals'
>> <mailto:energiesnaturals at gmx.de> ; 'Discussion of biomass
>> cooking stoves' <mailto:stoves at lists.bioenergylists.org> ;
>> 'Bob Fairchild' <mailto:solarbobky at yahoo.com> ; 'Ron
>> Vanetten' <mailto:rsvanetten at hotmail.com>
>> *Sent:* Monday, January 06, 2014 2:46 PM
>> *Subject:* Re: [biochar] Re: [Stoves] Chaff cutters and wood
>> Dear Paul
>> The request is like the question: "How long is a piece of
>> string"? :-) There are many different potential chaff cutter
>> and wood chopper designs. There are as many as there are
>> "potential applications."
>> Some of the variables may include:
>> * Production rate required.
>> * Manual or machine power
>> * Feed material
>> * Desired "cut product size and shape.
>> * Need for screening and sizing of product or not?
>> * Portability
>> * Durability
>> * Potential annual sales for each specific product
>> * Permissible price for a product or specific device to
>> accomplish a specific task
>> * Etc.
>> These variables, and the "necessary features" required, must
>> be specified before it is possible to configure a suitable
>> design and to estimate a cost "at the factory gate."
>> So, if you required a "cutter" or "chopper" to make a fuel
>> suitable for TLUD's, you should specify all the relevant
>> properties and features that would be necessary for a
>> Designer to configure a product design that would meet your
>> needs. However, the Designer should know how much the
>> Customer could afford to pay for the final product, so that
>> he will know if it is even possible to build a product that
>> will be affordable to the Target Customer. Additionally, the
>> Designer needs to know the expected sales volume per year, so
>> that he can figure in the economies of scale in developing
>> Best wishes,
>> ----- Original Message -----
>> *From:* Paul Anderson <mailto:psanders at ilstu.edu>
>> *To:* Mark Ludlow <mailto:mark at ludlow.com> ;
>> biochar at yahoogroups.com <mailto:biochar at yahoogroups.com>
>> ; 'energiesnaturals' <mailto:energiesnaturals at gmx.de> ;
>> 'Discussion of biomass cooking stoves'
>> <mailto:stoves at lists.bioenergylists.org> ; 'Bob
>> Fairchild' <mailto:solarbobky at yahoo.com> ; 'Ron Vanetten'
>> <mailto:rsvanetten at hotmail.com>
>> *Sent:* Saturday, January 04, 2014 4:07 PM
>> *Subject:* Re: [biochar] Re: [Stoves] Chaff cutters and
>> wood choppers
>> I am not good at estimating price points, and the number
>> of variations (feeder rollers, flywheel, thickness of
>> sticks) are so numerous that to say a price without
>> specifying all the rest might not be very realistic.
>> So, as a NON-engineer, I request assistance from other
>> readers about price vs features.
>> Even if I purchased one for where I live (Illinois, USA),
>> my usage would be limited, and not related to amounts
>> like tons. And to export from Mexico to Africa would be
>> in the same league as importing cutters from India,
>> meaning: difficult.
>> I would like to know what could be accomplished at
>> different price points. Is that a reasonable place to
>> start? (I hope others will comment. And maybe
>> something can be accomplished.)
>> Mark, where are you in Mexico, and when did you move
>> there? Greetings to your wife.
>> Doc / Dr TLUD / Prof. Paul S. Anderson, PhD
>> Email:psanders at ilstu.edu
>> Skype: paultlud Phone: +1-309-452-7072
>> On 1/4/2014 2:23 AM, Mark Ludlow wrote:
>>> Hi Paul,
>>> It would be useful if you could state a price point that
>>> would make equipment like this realistic. The machine
>>> Rolf describes is typical, but I appreciate the fact
>>> that limbs and trunks are fed at an angle. Shearing at
>>> an angle reduces the shear force required and thus
>>> increases the output per unit of power input. I could
>>> build a no-frills (except for safety systems) chipper
>>> like the one Rolf describes, here in México, at cost, if
>>> you are interested. México is the productivity-adjusted,
>>> lowest-cost producer in the world, as of 2014. Yet many
>>> are unemployed.
>>> If you tell me some number, say $/MT of green input,
>>> this gives us a target to design against. I think that
>>> energy-storage (flywheel) to accommodate impulse loading
>>> may work, but the amount of energy required is easily
>>> calculated and is reflected in the nominal hourly-input
>>> I will support development costs (as a non-profit) if
>>> you will tell me there is a market for XXX Machines at
>>> XXX Cost on the horizon.
>>> Buen Viajo en Africa!
>>> *From:*biochar at yahoogroups.com
>>> [mailto:biochar at yahoogroups.com] *On Behalf Of *Paul
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