[Stoves] Turn down by moving the pot

[Paul Anderson]

On 2/26/2014 2:25 PM, Crispin Pembert-Pigott wrote:
> There are many ways to control the power getting into the pot -- not 
> only lowering the fire. But one way or another control needs to be 
> exercised by the cook.
>
Stovers,

One way to have less heat entering the pot is to move the pot off to the 
side so that only part of the heat has any contact with the pot.    The 
results of this are:

1.  The SAME amount of energy / fuel is released in the combustion 
chamber, AND

2.  LESS water is boiled away from the simmering pot.

As I understand the WBT procedures, doing this would result in more 
favorable efficiency numbers than if the pot was boiling vigorously on 
the full impact of the fire, and losing much water.

Can someone please confirm this for me.    And perhaps give an example 
where the ONLY VARIABLE THAT CHANGES IS THAT THE POT BOILS OFF 
SIGNIFICANTLY LESS WATER if the pot is placed to the side.   I am 
thinking of the difference in the amount of water in the pot being even 
2 or 3 liters less between the two examples.

Yes, these types of stoves could exist, as in an example of a TLUD 
without any turn down of primary air and with a pot support that allows 
the pot to be shifted to the side (such as on 2 pieces of rebar).

When we have clarification about this, we can then discuss if moving the 
pot should be a factor in stove testing.    And also if the amount of 
remaining water after simmer should be a factor.

Paul

Doc  /  Dr TLUD  /  Prof. Paul S. Anderson, PhD
Email:  psanders at ilstu.edu
Skype: paultlud      Phone: +1-309-452-7072
Website:  www.drtlud.com

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