Combustion Flashcards
1
Q
What products form when coal burns completely?
A
CO2, H2O, NOx, SO2, soot
2
Q
When the percent excess air is greater than zero, you have _____ air than needed, and flue gas Oxygen ___________ with an increase in AFR.
A
more, increases
3
Q
What product starts to rapidly increase in concentration at the flue gas analyzer if the fuel is burning too rich?
A
Carbon Monoxide
4
Q
What happens to compounds in the fuel that do not burn during a combustion process?
A
They turn into fly ash/particulates
5
Q
Which fuel emits the greatest amount of CO2 per joule?
A
Coal
6
Q
(Actual AFR) - (Theoretical AFR)/ (Theoretical AFR) * 100%
What does this formula calculate?
A
% excess air
