[Stoves] Fwd: re ELFD Sampada

[ajheggie at gmail.com]

[Default] On Sat, 26 Mar 2016 21:26:21 +0530,Anand Karve
<adkarve at gmail.com> wrote:

>Dear Stovers,
>I am forwarding a message from my daughter, Dr. Priyadarshini Karve.
>Yours
>A.D.Kaarve
>***
>Dr. A.D. Karve
>
>Chairman, Samuchit Enviro Tech Pvt Ltd (www.samuchit.com)
>
>Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)
>
>---------- Forwarded message ----------
>From: Priyadarshini Karve <priyadarshini.karve at gmail.com>
>Date: Sat, Mar 26, 2016 at 5:33 PM
>Subject: re ELFD Sampada
>To: Anand Karve <adkarve at gmail.com>
>
>
>We cannot really say if any water vapour is going inside the fuel chamber
>or not, and even if it is, how significant that is for the combustion. The
>stove has a double walled structure, and the steam just pushes air flow in
>the space between the outer and inner walls. The inner wall has holes
>opening into the fuel chamber, and the incoming air passes into the fuel
>chamber through these holes. Some water vapour is entering through the
>outer wall for sure, but how much, if any, is getting to the fuel chamber
>is uncertain.


That's a better engineered steam aspirator than the one I did some
years ago Tom still hosts the item at:

http://stoves.bioenergylists.org/taxonomy/term/754

I take it the primay and secondary air rise (and get preheated)
between twin walls befor entering and forming a downward vortex air
curtain? Yes the steam will enter the fire but it's chief significance
will be the parasitic effect of the boiling coils as even if the steam
does interact with hot coals any gases resulting will return any
energy gained in the fklame.

The ejector looks pretty simple, it would be interesting to know the
water consumption verses cooking power?

Andrew