To calculate the Lambda Air/Fuel Ratio (\(\lambda\)):
\[ \lambda = \frac{AFR_{\text{actual}}}{AFR_{\text{stoich}}} \]
Where:
The lambda air/fuel ratio is a measure of the air-to-fuel mixture in an internal combustion engine. It is used to determine whether the engine is running lean (too much air) or rich (too much fuel). A lambda value of 1 indicates a stoichiometric mixture, where the air and fuel are in perfect balance for complete combustion. Values less than 1 indicate a rich mixture, while values greater than 1 indicate a lean mixture. Monitoring and adjusting the lambda value is crucial for optimizing engine performance, fuel efficiency, and emissions.
Let's assume the following values:
Using the formula:
\[ \lambda = \frac{14.7}{14.7} = 1 \]
The lambda value is 1, indicating a stoichiometric mixture.
Let's assume the following values:
Using the formula:
\[ \lambda = \frac{13.5}{14.7} \approx 0.92 \]
The lambda value is approximately 0.92, indicating a rich mixture.