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
----------------
*From:*Gasification
[mailto:[email protected]] *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?
http://www.youtube.com/watch?v=c4GUEq_ubkw
Cesar
*******************************************************************************************
----- Original Message -----
*From:* Kevin <mailto:[email protected]>
*To:* [email protected]
<mailto:[email protected]> ; Mark Ludlow
<mailto:[email protected]> ; 'energiesnaturals'
<mailto:[email protected]> ; 'Discussion of biomass
cooking stoves' <mailto:[email protected]> ;
'Bob Fairchild' <mailto:[email protected]> ; 'Ron
Vanetten' <mailto:[email protected]>
*Sent:* Monday, January 06, 2014 2:46 PM
*Subject:* Re: [biochar] Re: [Stoves] Chaff cutters and wood
choppers
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
prices.
Best wishes,
Kevin
----- Original Message -----
*From:* Paul Anderson <mailto:[email protected]>
*To:* Mark Ludlow <mailto:[email protected]> ;
[email protected] <mailto:[email protected]>
; 'energiesnaturals' <mailto:[email protected]> ;
'Discussion of biomass cooking stoves'
<mailto:[email protected]> ; 'Bob
Fairchild' <mailto:[email protected]> ; 'Ron Vanetten'
<mailto:[email protected]>
*Sent:* Saturday, January 04, 2014 4:07 PM
*Subject:* Re: [biochar] Re: [Stoves] Chaff cutters and
wood choppers
Mark,
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.
Paul
Doc / Dr TLUD / Prof. Paul S. Anderson, PhD
Email:[email protected]
Skype: paultlud Phone: +1-309-452-7072
Website:www.drtlud.com
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
rating.
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!
Mark
*From:*[email protected]
[mailto:[email protected]] *On Behalf Of *Paul
Anderson
