[Stoves] RE: Charcoal Stoves - measuring CO

[Crispin Pemberton-Pigott]

Dear Dean

I am interested in how you calculate the CO produced during a 'cook'.

First, is it from starting the fire to the end of the test, or is the fire 
established when the cooking starts?

Then, is it a number based on the total carbon burned combined with sample 
CO/CO2 ratios taken on a regular basis?

I have some measurements from testing an alcohol gel stove today and I would 
like to work out the CO produced during a boiling test.  On high power the 
CO level was very consistent, and dropped to a consistent level when turned 
down.

For example, if the CO produced on 'high' was a consistent 4% of CO2 and the 
fuel burned was 60 gm, is the CO produced simply 4% of 60?  If I work on a 1 
minute interval and calculate the CO for each mass of fuel burned in that 
period is the CO a sum of those results?

I am not sure if you have a computer connected to the test appartus that 
integrates the samples on a continuous basis or if it is calculated 
separately.  I would like to be able to make meaningful comparisons with 
your tests.

Many thanks
Crispin