[Stoves] 80 CANDELS STOVE = 7 KW

[AJH]

On Tue, 26 Sep 2006 12:44:14 +0200, Frans Peeters wrote:

>Candel  DATA
>Paraffin  10300 Kcal /Kg = 12KWh/Kg
>1 candel burns   7,35 g/ h =  88,2 W (sec )

So a candle consuming wax at 7.35 gram per hour is running at 88.2W(t)

>1 liter water 0° --------> 75,7 C  in 1 h    = theoretical  100% eff )

OK I got 75.82 if all the heat got into the water but we know we don't
get anywhere near this with a stove and pot. It reminds me of an event
in married quarters, Finthen airbase forty years ago trying to deep
fry steak chunks in a single candle power fondue, good job the lights
were out!
> 
>Flame mid = 860 degree C
>Flame top = 820   C
>5mm over flame  650- 790  C

Are these your own measurements Frans?
> 
>A 80 candels stove = 7 KW stove !
>A clean sootless   burn  .
>only sidewind gives smoke !     

We've talked of candle flames before, the wick is designed to make
them self optimising, alter the conditions around the wick and the
diffuse flame is disturbed so the glowing carbon particles don't burn
out. The wicks are woven such that they curve out of the reducing
atmosphere inside the flame and the bit that becomes exposed is burnt
off, maintaining a correct length to vapourise just enough wax for a
sootless flame. 

Tom Reed has previously posted how the length of flame that remains
clean burning is a characteristic of the ignitability of the fuel
burning.

AJH