[Stoves] Excess Air and >>>>

[Rajan Philip]

Dear Prof,

It has been my observation that fire-wood in wood stoves burn better in
villages compared to cities and towns. Probably because the oxygen content
in village air is slightly more than city/town air.

Regards,

Rajan





On Fri, Aug 23, 2013 at 1:41 PM, Philip Lloyd <plloyd at mweb.co.za> wrote:

> Dear Stovers
>
> We all seek to minimize fuel consumption for a given task, and that in
> effect means maximizing the efficiency, probably under varying heat output
> conditions.
>
> I have seen little consideration of the fact that nitrogen in the air goes
> along for a free ride, but reduces the efficiency because you have to heat
> up the free rider along with everything else.
>
> It is for this reason that the Excess Air Ratio tells you so much - it
> tells
> you if you have enough air to combust properly, and not too much to waste
> heat on nitrogen (and other inerts in the atmosphere like argon and CO2).
>
> You can gain quite a lot in efficiency if you control the excess air as the
> fuel is consumed in a normal batch burn, and once you have learned how to
> control it you can find ways to implement that control - which is the
> really
> exciting part of stove design.
>
> Now to >>>>.  On this thread, stovers tend to reply with everything that
> was
> in the original, and in order to find something that interested you in the
> index, you then have to scroll through pages of >, >>, >>>, >>, >, >>, >>>,
> >>>> etc ad inf.
>
> As a courtesy to other users, it is kind to delete everything non-essential
> to your reply.  Outlook does not appear to have an option "Reply without
> message" that some other mailers possess - for those others it is quite
> simple to reply neatly, but Outlook users really need to save us from the
> dread >>>>>>>
>
> Regards to all
>
> Prof Philip Lloyd
> Energy Institute
> Cape Peninsula University of Technology
> PO Box 652, Cape Town 8000
> Tel:021 460 4216
> Fax:021 460 3828
> Cell: 083 441 5247
> lloydp at cput.ac.za
>
>
>
>
>
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