[Stoves] MUST CHARCOAL BE A CAUSE FOR CONCERN?

[Anand Karve]

Dear Kevin,
our housewives normally use stoves in which wood is pushed into the
firebox through an opening at the base of the stove. In such a case, they
like to burn large diameter wood, because the large piece of wood needs only
to be given an occasional shove to push it deeper into the firebox. Also, by
pulling the log partially out of the firebox, they can reduce the intensity
of fire. In a TLUD stove one needs smaller pieces. Stalks of cotton or
pigeon pea are available free of cost to farmers who grow these crops. These
stalks are relatively thin and easy to break horizontally even with bare
hands. However the TLUD stove with natural draft is not popular as a stove
for cooking. Most people use it for heating bath water, because this stove,
once it has started, does not need any further tending. With a single
load, this stove can heat about 10 to 15 litres of water to a temperature of
about 50C, without paying any further attention to it.
Yours
A.D.Karve

On Sun, Oct 17, 2010 at 11:51 AM, Kevin <kchisholm at ca.inter.net> wrote:

>  Dear AD
>
> I find your observations about fuel preparation very interesting. I think
> they are very important in understanding the significance of one of the
> obstacles to fuel preparation for stove systyems.
>
> In an extreme Poverty Economy, such as exists for very poor people who are
> struggling to attain the basic essentials of life, about the only asset and
> resource these people have is time and their labour.
>
> Stickwood can be burned directly in a Rocket type stove. with no further
> preparation. Or, it can be burned in a box type stove by cutting or breaking
> to length. However, there is considerable extra preparation to reduce fuel
> size to the degree required for a TLUD.
>
>  Does this extra preparation effort act as an obstacle to more widespread
> use of the TLUD Stove? Under what circumstances would this extra preparation
> effort be justified?
>
> Best wishes,
>
> Kevin
>
>
>
> ----- Original Message -----
> *From:* Anand Karve <adkarve at gmail.com>
> *To:* Discussion of biomass cooking stoves<stoves at lists.bioenergylists.org>
> *Sent:* Friday, October 15, 2010 11:59 PM
> *Subject:* Re: [Stoves] MUST CHARCOAL BE A CAUSE FOR CONCERN?
>
>
>
>   Dear Otto,
>>
> from the point of view of chopping wood into small pieces, we found bamboo
> to be an ideal type of wood. It is very easy to split bamboo vertically into
> strips of 2 to 3 cm width, and once the bamboo has been split, one can break
> the strips into pieces about 10 to 15 cm long, even with bare hands.
> Yours
> A.D.Karve
>
>>
>>
>>
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