[Stoves] A doctoral thesis on stoves

[Frank Shields]

Thanks Ron,

 

I was surprised to see snakes as being one of the problems listed on page
ten.  Wonder what kind?

 

Surprised to see twisted tape adding efficiency as I would think that would
just remove heat that was on its way to the pot.  

 

Now that all this info is available this would be a good place to test
different fuels, stoves etc. All of the 'six box' variables now controlled
and we can swap out one at a time to see what happens. Re-arrange to report
the following in order: 

 

Review of the six variables:

1)    Fuel(s)

2)    Fuel manipulation between box1 and box 3

3)    Stove(s)

4)    Cooking utensil

5)    Manipulation between box 4 and box 6

6)    Task(s)

Calculations from Fuels > Tasks give the efficiencies. 

 

Regards

 

Frank

 

 

 

Frank Shields

Control Laboratories; Inc.

42 Hangar Way

Watsonville, CA  95076

(831) 724-5422 tel

(831) 724-3188 fax

frank at biocharlab.com

www.controllabs.com

 

 

 

 

 

 

 

From: Stoves [mailto:stoves-bounces at lists.bioenergylists.org] On Behalf Of
Ronal W. Larson
Sent: Thursday, September 19, 2013 10:43 AM
To: Discussion of biomass
Subject: [Stoves] A doctoral thesis on stoves

 

List:

 

    1,  I recommend this recent new (free) technical stove paper:

 

     http://www.energsustainsoc.com/content/pdf/2192-0567-3-16.pdf

 

    2.  This is a shortened but still lengthy version of an Indian doctoral
thesis.  It concentrates on one village and one type of stove, providing
extensive testing and good reporting on especially the amount of fuel
consumed (mostly for water boiling) and the time taken to acquire it.    

 

    3.  The main new feature is on using a simple low cost means of getting
swirl and thereby better gas mixing.  The addition is called a TT - twisted
tape.    Seems like it is adding 5% to stove efficiencies (which started in
the 20-25% range), otherwise no changes to these tradition stoves.  The
paper provides a good review of almost everything else about simple stoves,
including comments on WBTs.   The TTs should be applicable to Rockets,
TLUDs, etc.

 

    4.  I have lost how I came to read it.  But think it came from this
site:  https://www.engineeringforchange.org/news/categories/energy/

 

Ron

 

 

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