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%.
Definition: Combustion efficiency measures how effectively the heat content of a fuel is transferred into usable heat.
Formula: \( \eta = \frac{Q_{in} - Q_{loss}}{Q_{in}} \times 100 \)
Example: \( \eta = \frac{1000 - 100}{1000} \times 100 \)
Definition: The energy of combustion is the total energy released as heat when a substance undergoes complete combustion with oxygen.
Formula: \( \Delta H_c = \sum \Delta H_{products} - \sum \Delta H_{reactants} \)
Example: \( \Delta H_c = (2 \times -393.5) - (1 \times -241.8 + 1 \times 0) \)
Definition: The rate of combustion is the speed at which a fuel burns, releasing energy.
Formula: \( R = \frac{m}{t} \)
Example: \( R = \frac{50}{2} \)
