The formula to calculate the Combustion Efficiency (Ecombustion) is:
\[ Ecombustion = \frac{CO2}{CO2 + CO} \times 100 \]
Where:
Let's say the concentration of CO2 is 1500 ppmv and the concentration of CO is 50 ppmv. Using the formula:
\[ Ecombustion = \frac{1500}{1500 + 50} \times 100 \]
We get:
\[ Ecombustion = \frac{1500}{1550} \times 100 \approx 96.77\% \]
So, the combustion efficiency is approximately 96.77%.