I've been measuring the gas emission of a lab-scale peatland experiment with a electrochemical sensor. The output of the sensor measures the concentration in ppm. I want to change this data to EF. What other variables that I need to measure? So far I've also been measuring the emission flowrate and the mass loss rate of the sample. How is the step-by-step procedure to process the data afterwards?
Hi Bintang Farhan Muhammad
I hope you're doing well. I am not sure what kind of gas you're experimenting on, but the first step to calculate the emission factor of a specific type of gas is to find its proximate analysis. After you find the composition, you can use the EPA emission factor for each component and calculate the total emission factor of the gas as a summation of the emission factors of its components. In fact, if you are working with common gas types such as NG, Hydrocarbons etc., you can easily find the factors in EPA as a unit number. The attached file includes summarized emission factors of the most common gas and fuel types which might be helpful. It is also worth mentioning that the factors provided in this file, are based on volumetric or caloric units of fuels and gases and you should convert ppm (part per million) to the units of the emission factors provided for the gas of your interest in these tables. You can also find the original EPA emission factor files by searching on the internet or visiting https://www.epa.gov/.
Best of luck,
Saba
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