[Stoves] Stove Matrix version 2
Paul Anderson
psanders at ilstu.edu
Mon Apr 8 11:01:45 CDT 2013
To all,
I remember the Matrix to have columns at the right side to show
LPG/alcohol/solar, etc.
I am looking for it, but that was 4 years ago.
Paul
Paul S. Anderson, PhD aka "Dr TLUD"
Email: psanders at ilstu.edu Skype: paultlud Phone: +1-309-452-7072
Website: www.drtlud.com
On 4/8/2013 6:01 AM, Robert Fairchild wrote:
> All,
> Here it is as an attachment.
> Bob
>
> --- On *Mon, 4/8/13, Paul Anderson /<psanders at ilstu.edu>/* wrote:
>
>
> From: Paul Anderson <psanders at ilstu.edu>
> Subject: Re: [Stoves] [biochar] Understanding FUEL EFFICIENCY vs
> Energy efficiency
> To: "Discussion of biomass cooking stoves"
> <stoves at lists.bioenergylists.org>
> Cc: "Kevin" <kchisholm at seaside.ns.ca>, biochar at yahoogroups.com,
> "Hugh McLaughlin" <wastemin1 at verizon.net>, "Bob Fairchild"
> <solarbobky at yahoo.com>
> Date: Monday, April 8, 2013, 2:25 AM
>
> Dear Kevin, Crispin and all,
>
> We are in agreement.
>
> "Stove Testing" is an expression that has different meaning to
> different people. WBT is one of the tests of stoves. Just like
> we want to have the Safety analysis reported.
>
> Kevin's list of questions should be part of a Table of Stove
> Characteristics that includes price, etc etc etc. I have
> not seen such a table since I posted a Cookstove Matrix in March
> 2006. Here is the description and the link, but I cannot see the
> actual matrix. Erin or Tom, can you find it?
>> http://stoves.bioenergylists.org/stove-matrix
> Anyway, the point is that we need these kinds of consolidations of
> the many factors.
>
> Paul
>
> Paul S. Anderson, PhD aka "Dr TLUD"
> Email:psanders at ilstu.edu </mc/compose?to=psanders at ilstu.edu> Skype: paultlud Phone: +1-309-452-7072
> Website:www.drtlud.com <http://www.drtlud.com>
>
> On 4/8/2013 12:40 AM, Kevin wrote:
>> Dear Paul
>> I would like to suggest a different way of looking at things....
>> look at a stove through the eyes of the customer.
>> (The "Customer" is the person or Organization that pays the
>> Manufacturer for the Stove.)
>> The fundamental question should be: "What does the Customer want?"
>> Does the Customer want the stove to produce biochar?
>> Does the Customer want the stove to have the least fuel input to
>> accomplish a stated task?
>> Does the Customer want to minimize products of combustion vented
>> into the living space?
>> Does the Customer want the stove to provide a space heating
>> benefit for the stove user?
>> Does the Customer want a stove that requires extended burn times
>> between refuelling, and a minimum of attendance?
>> Does the Customer want a single firing rate throughout the burn,
>> OR, a "Two Level Firing Rate capability, OR a large range of
>> firing capabilities?
>> etc....
>> "Efficiency" is basically a measure of "Resource Input to
>> accomplish a desired task"
>> It is not the purpose of "testing" to promote a particular
>> technology or philosophy, but rather, to measure the
>> effectiveness of accomplishing a given task of importance to the
>> Customer..
>> "The Customer is the King." Proper Testing Protocols should allow
>> a Customer to test a range of stoves, under a variety of
>> circumstances, so that he will be able to select the stove that
>> best meets his requirements.
>> Best wishes,
>> Kevin
>>
>> ----- Original Message -----
>> *From:* Paul Anderson </mc/compose?to=psanders at ilstu.edu>
>> *To:* Discussion of biomass cooking stoves
>> </mc/compose?to=stoves at lists.bioenergylists.org> ; Hugh
>> McLaughlin </mc/compose?to=wastemin1 at verizon.net> ; Bob
>> Fairchild </mc/compose?to=solarbobky at yahoo.com> ;
>> biochar at yahoogroups.com </mc/compose?to=biochar at yahoogroups.com>
>> *Sent:* Monday, April 08, 2013 1:50 AM
>> *Subject:* [biochar] Understanding FUEL EFFICIENCY vs Energy
>> efficiency
>>
>> Dear Stovers and Biochar makers,
>>
>> We are NOT sufficiently emphasizing that TLUDs/char-maker
>> stoves can use
>> fuel other than stick wood. When burning briquettes and
>> pellets and
>> cobs and shells (which most other stoves cannot burn very
>> well), we are
>> NOT burning tree-sourced fuel.
>>
>> Crispin correctly says that a kg of wood in and pyrolyzed is
>> no longer
>> wood, and therefore is FUEL used, and that relates to FUEL
>> Efficiency.
>> TLUDs can consume more wood because they are converting some
>> of that
>> wood into charcoal. That is different from ENERGY efficiency,
>> which
>> can allow calculations for the energy in the charcoal that is
>> not used.
>>
>> Especially in char-making stoves, energy efficiency is better
>> than the
>> fuel efficiency IF USING WOOD. But if the fuel is not wood,
>> then the
>> WOOD-FUEL efficiency is 100% (none was burned in the cooking
>> of the
>> meal), and the ENERGY efficiency might be very good, while
>> the FUEL
>> efficiency (burning ag residues, dung, etc) might be low in
>> comparison
>> with other stoves, but no trees were cut or burned.
>>
>> About the above, there will need to be some education given
>> to the stove
>> community (including GACC and manufacturers and governments).
>> WHAT fuel
>> is burned does make a difference if FUEL efficiency is an
>> important
>> criteria when evaluating stoves.
>>
>> Just because wood is the traditional fuel used in stove
>> testing does not
>> mean that stoves that can also burn OTHER biomass should be
>> judged on
>> the WOOD-FUEL efficiency calculations. For places like Haiti,
>> Rwanda,
>> and many large zones of numerous large countries, to be able
>> to cook
>> WITHOUT FOREST DEGRADATION should be a major reason for
>> choosing TLUD
>> stoves.
>>
>> Having written about this here does not mean that the message
>> has
>> reached the decision makers and those who report test results on
>> cookstoves. And the makers of "stick-wood-burning stoves" are
>> unlikely
>> to want to tell this message to others.
>>
>> Because the GACC is about stoves AND FUELS, I hope that proper
>> recognition can be given in the discussions and decisions
>> about the
>> stoves that can have 100% avoidance of cutting wood, if that
>> is important.
>>
>> Paul
>>
>> --
>> Paul S. Anderson, PhD aka "Dr TLUD"
>> Email: psanders at ilstu.edu
>> </mc/compose?to=psanders%40ilstu.edu> Skype: paultlud Phone:
>> +1-309-452-7072
>> Website: www.drtlud.com <http://www.drtlud.com>
>>
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