[Stoves] Damp fuel in TLUDs

[Olugbenga Olatunji]

Dear all,

Good morning. I just joined this group from Nigeria not quite long, I must say it is really interesting to see the different ideas and innovations about stove.

Has anyone come across KIKE stove? It uses bio-fuel gel.  It is very good and burns blue flame just like gas, and it doesn't bring smoke or black stain.

I will be glad to hear from anyone who has come across this before and their experiences.

Thanks.

-----Original Message-----
From: "Anand Karve" <adkarve at gmail.com>
Sent: ‎26/‎03/‎2016 07:14
To: "Discussion of biomass cooking stoves" <stoves at lists.bioenergylists.org>
Cc: "Priyadarshini Karve" <priyadarshini.karve at gmail.com>
Subject: Re: [Stoves] Damp fuel in TLUDs

Dear Martin,
thanks for taking cognizance of our ELFD (Electricity-less forced draft) Sampada stove. It is the latest brain-child of my daughter, Dr. Priyadarshini Karve.  Heat from burning water vaporizes water circulating around the fire box and the steam is used to force air into the flame. The gases in the flame are combusted completely by the additional air entering into the flame, so that the flame colour turns paler and the smoke emission stops completely. We have made several models, ranging from firebox diameter of 10 cm which can be used in a household to 30cm, which can be used in a canteen. In the case of stationary use, this stove is connected to an overhead water tank above the house. For a stove which needs to be moved around, we provide a portable water tank having a manually operated pump.  About 3 kg wood, costing about USCents 25, has the same calorific value as 1 kg LPG, which costs  more than 1 US$. Apart from this, wood is renewable. We hope to sell this stove to the cost-conscious and environmentally conscious people.
Yours
A.D.Karve  


***
Dr. A.D. Karve

Chairman, Samuchit Enviro Tech Pvt Ltd (www.samuchit.com)

Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)



On Sat, Mar 26, 2016 at 3:44 AM, Boll, Martin Dr. <boll.bn at t-online.de> wrote:

Regards to all,
Just a remark to the damp fuel discussion-


It is commonly known that wood, with a small content of water ( about 10% water?) does better burn than "bone-dry".
It is now re-discussed, that a small amount of hydrogen and oxygen generated out of water, could cause better burn (/ flame-stability?) for burning wood.


Mind, as you know, that hydrogen has a wide range, within it is ignitable; most other gasses in use (except acetylen) have only a narrow range in mixture with air, within they are burnable. If some water-vapor was split into 2h and O, that would be an excellent ignitable mixture, and that could be a reason for better burning of slightly moistened, than bone-dry wood.


- In that context I draw your memory to the Samuchit elfd sampada stove,  (mentioned some weeks ago). 
( look:   http://www.indiamart.com/samuchitenvirotech/  ),
It gets it's forced air-stream by steam-injection (by a venturi-pump).
- Though not having seen it actually, I like that low-tech-concept!


I assume in the discussed manner: 
In the Samuchit elfd sampada stove, there is 
as well condensation of water (falling out before the burning process) and 
as well some water-vapor, going into the burning-chamber, 
- which i guess further, could be split into 2H and O to make favor to the burning-process, 
especially if "very dry" wood is being burnt.


- Kind Regards to AD Karve!, - who certainly can tell about facts instead of guesses.


Regards 
Martin




 





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