[Stoves] Fwd: Smoke-free biomass pellet fueled stove
mnurhuda at ub.ac.id
mnurhuda at ub.ac.id
Tue Nov 6 06:50:32 CST 2012
Dear all,
It is also very unfair, if we developed the stoves with a lot of efforts
and money, while the others will get big benefits from it.
Therefore, licensing should be selective. It can be free for special
purpose, but should be sharing benefits for profit-oriented purposes.
Regards
M. Nurhuda
> Dear Anil
>
> Sadly, it looks like Imperialism is still alive and well.
>
> Best wishes,
>
> Kevin
> ----- Original Message -----
> From: nari phaltan
> To: Discussion of biomass cooking stoves
> Sent: Tuesday, November 06, 2012 12:09 AM
> Subject: Re: [Stoves] Fwd: Smoke-free biomass pellet fueled stove
>
>
> Dear Prof Nurhuda,
>
>
> It is a very impressive development and you are right in expecting a
> suitable rate of return on your intellectual property. Such requests for
> waiving rights have also been received by us for our ethanol stove work
> before from some members of the group.
>
>
> All the best.
>
>
> Anil K Rajvanshi
>
>
>
>
>
>
>
> On Tue, Nov 6, 2012 at 4:38 PM, <mnurhuda at ub.ac.id> wrote:
>
> Dear Prof. Anderson,
>
> The equipments used to produce the stove are actually the standard
> equipments used in the kerosene stove production. They are hydraulic
> press, welding equipment, roller, and still many other equipments.
>
> The number of personals are 30 persons, but those are involved in the
> production, due to still lower demand, is only 6-10 persons.
>
> The maximum production capacity, at moment, around 500 units in week.
> But
> we can increase up to 1000 units in week. It depends on the difficulty
> level, the stove dimension and still many other things.
>
> The expenses used in the development of new stoves are mostly for
> research
> and purchasing or build new equipments. We have spent more tens
> thousands
> US$ from our start in the mid 2008. I therefore disagree to any
> proposal
> to intelectual right removal, as you ever wrote about it to me two
> years
> ago.
>
> Kind regards
> M. Nurhuda
>
>
>
> Regards
> M. Nurhuda
>
>
>
> > Dear M. Nurhuda,
> >
> > Thank you for the info.
> >
> > Many of us are curious about your workshop to produce such nice
> items.
> > Questions include the equipment, personnel, and production capacity.
> >
> > With appreciation,
> >
> > 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 11/5/2012 1:13 AM, Ron Larson wrote:
> >>
> >> Lists:
> >>
> >> Prof. Nurhuda has ok'd my forwarding this additional information
> on
> >> his recently announced stove.
> >>
> >> Ron
> >>
> >>
> >> Begin forwarded message:
> >>
>
> >>> *From:* Muhammad Nurhuda <mnurhuda at gmail.com
> >>> <mailto:mnurhuda at gmail.com>>
> >>> *Date:* November 4, 2012 5:01:46 PM MST
> >>> *To:* rongretlarson at comcast.net <mailto:rongretlarson at comcast.net>
> >>> *Subject:* *Re: [Stoves] Smoke-free biomass pellet fueled stove*
>
> >>>
> >>> Dear Mr Larson,
> >>>
> >>> Thank a lot for your email. The stove is my recent attempt in
> order
> >>> biomass pellet can be well burnt. Previously, I developed stove
> fueled
> >>> wit
> >>> palm kernel shell. Even the stove was excellent for palm kernel
> shell,
> >>> but
> >>> it is not immediately good for biomass pellet. There are a lot of
> >>> things
> >>> that have to be optimized.
> >>>
> >>> Yes, the excess air can be seen from the appearance of the flame.
> >>> Optimal
> >>> secondary air would produce very transparent,short flame, though
> it
> >>> must
> >>> not be blue...... Mr Crispin Pemberton Pigott has witnessed the
> stove
> >>> as I demonstrated it in Yayasan Dian Desa, last October.
> >>>
> >>> I just started to sell this pellet stoves. At the moment, I got
> >>> purchasing
> >>> order of 1200 stoves. It occurs after the buyer perform test by
> >>> himself.
> >>> However, due to limited capacity of our workshop, the buyer must
> wait
> >>> up
> >>> to 3 months right now. At the moment, we are manufacturing 1600
> >>> chopped-wood fueled stoves for project in Sumba Island, Indonesia.
> >>>
> >>> The percentage of charcoal by weight is 20-25%. Some time it is
> less.
> >>> But
> >>> certainly, our stove burns the smoke very well until the last
> smoke
> >>> production.
> >>>
> >>> Biochar is char that contains volatile matter (VM) less then 3%.
> When
> >>> the
> >>> VM is still high, let say 5%, the reaction of VM and water can
> lead the
> >>> acidic soil condition, and it is not good for the plant. We
> believe
> >>> that
> >>> the biochar produced by combustion of our stove is VM-free, such
> that
> >>> it
> >>> is good for soil conditioner.
> >>>
> >>> As you might know, my background is a theoretical atomic and laser
> >>> physicist. I do not know some specific terms like turn-down ratio.
> I
> >>> started to develop stoves in the late 2008. In addition, I do not
> have
> >>> laboratory, just small workshop that produces the stoves. So far,
> the
> >>> performance tests are performed by external laboratories. In 2010
> test
> >>> performed by PT Puser Bumi in cooperation with directory of
> bioenergy,
> >>> republic of Indonesia, our wood chopped stoves was the best among
> other
> >>> 60
> >>> stoves.
> >>>
> >>> Kind regards
> >>> M. Nurhuda
> >>>
> >>> > Prof. Nurhuda
> >>> > This is a really fine looking stove. The part that intrigues me
> most
> >>> is
> >>> that you are controlling secondary air for the pyrolysis gases.
> And
> >>> apparently doing it (and primary air) well with the rotating disc
> >>> mechanism. I do not recall seeing any other stove controlling both
> >>> (without a fan) - so any data on the value of that for users of
> the
> >>> stove
> >>> > could be very helpful to others. (Can they control excess air by
> the
> >>> look
> >>> > of the flame?)
> >>> > A few questions:
> >>> > the price?
> >>> > sales going well?
> >>> > what percentage char by weight?
> >>> > any soil improvement results from using the biochar?
> >>> > can you do more than a 4:3 turndown ratio? (based on your two
> stated
> >>> power
> >>> > levels)
> >>> > apparently you are striving for biochar (great!), but can you
> >>> describe
> >>> conditions if you try to burn the produced char?
> >>> > any efficiency data?
> >>> > you appear to be pre-heating both primary and secondary air -
> can you
> >>> attribute any performance improvement to that? (I know of no-one
> else
> >>> doing both)
> >>> > Thanks for the alert on your stove.
> >>> > Ron
> >>> > ----- Original Message -----
> >>> > From:mnurhuda at ub.ac.id
>
> >>> <http://webmail.ub.ac.id/src/compose.php?send_to=mnurhuda%40ub.ac.id>
> >>> > To:stoves at lists.bioenergylists.org
> >>> <http://webmail.ub.ac.id/src/compose.php?send_to=stoves%40lists.bioenergylists.org>
> >>> > Sent: Saturday, November 3, 2012 5:03:54 PM
> >>> > Subject: [Stoves] Smoke-free biomass pellet fueled stove
> >>> > Dear all,
> >>> > Please check to following page to see the video of our
> smoke-free,
> >>> biomass-pellet fueled stove:
> >>> >http://www.youtube.com/watch?v=uWt25oD1iWk&feature=youtu.be
> >>> > Kind regards
> >>> > M. Nurhuda
> >>> > _______________________________________________
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>
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>
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> >>>
> >>
> >>
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> --
> Nimbkar Agricultural Research Institute (NARI)
> Tambmal, Phaltan-Lonand Road
> P.O.Box 44
> Phaltan-415523, Maharashtra, India
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> e-mail:nariphaltan at gmail.com
> anilrajvanshi at gmail.com
>
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