need calculate my batchrocket stove efficiency

Hi to all,

I have designed and developed a new style of batchrocket stove and I need to calculate it's efficiency. Can anyone guide me to do it properly.

Regards
Nikos

I don't think there is any "calculating" the efficiency of a new design; you need to buy a Testo gas analyzer and take readings as you tweak configurations etc. to see what works best. The Testo is an expensive professional tool that costs in the neighborhood of $1000 depending on model.

I have encountered places that rent the Testco.   And, of course, there are other brands that are substantially lower in price ……and maybe lower in quality.

One way of doing it is to weigh the wood  used, and calculate the calories in the wood burned.

One can put on a pot of water take the temp, and then see how long it takes to boil the water.

There are many variables,   hard to pin down, like the moisture that is in your wood....  

But if you are looking to improve your setup getting a baseline measurement of how long to boil water can give you an idea of how many BTU's  your system is putting out  for the amount of wood you put in.

John F Dean wrote:I have encountered places that rent the Testco.   And, of course, there are other brands that are substantially lower in price ……and maybe lower in quality.

Does Testco analyser gives efficiency printed on the screen or need to analyse the data and do calculations?

I can calculate fuel energy (thermal mass of wood, weight, moisture levels, burning time. Also, I have found some cheaper chinnese products that can measure O2, H2S, CO, LEL and finally I can measure gas temp with a thermocouple.
Are all these enough?

Testco makes several different models.   You are the only one who can decide what is enough information..