Question 82Steam Plants - 1st Asst/Chief70% to pass
Generally, a 12% to 14% content of carbon dioxide in boiler flue gases indicates _______________.
AI Explanation
The correct answer is C) proper combustion of the fuel oil.
A carbon dioxide (CO2) content of 12-14% in boiler flue gases typically indicates that the fuel oil is being properly combusted. This level of CO2 suggests the combustion process is optimized, with the right amount of air mixing with the fuel to achieve complete and efficient burning.
The other answer choices are incorrect because: A) high vanadium content would not affect the CO2 levels, B) carbon deposits would likely lead to incomplete combustion and lower CO2 levels, and D) too much excess air would dilute the flue gases and result in lower CO2 concentrations.
Related Questions
#80 The boiler economizer provides additional heat to the _______________.#81 A mechanical carbon dioxide recorder operates by detecting the difference between air and the _______________.#83 The absence of carbon monoxide in the flue gas of a boiler indicates _______________.#84 A flue gas analysis is performed to determine the _______________.#85 If an analysis of boiler flue gas determines there is no excess air for combustion, you should expect the nitrogen content of the flue gas to be approximately _______________.