Question 84Steam Plants - 1st Asst/Chief70% to pass
A flue gas analysis is performed to determine the _______________.
AI Explanation
The correct answer is D) correct fuel/air ratio for efficient combustion.
A flue gas analysis is used to determine the proper fuel/air ratio for efficient combustion in boilers, engines, and other combustion equipment. By analyzing the composition of the exhaust or flue gas, the operator can adjust the air intake to achieve the ideal fuel/air mixture for complete and efficient combustion.
The other answer choices are incorrect because they do not directly relate to the purpose of a flue gas analysis. Option A measures the nitrogen content, option B measures the carbon content of the fuel, and option C measures the specific heat of the combustion products, none of which are the primary goals of a flue gas analysis.
Related Questions
#82 Generally, a 12% to 14% content of carbon dioxide in boiler flue gases indicates _______________.#83 The absence of carbon monoxide in the flue gas of a boiler indicates _______________.#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 _______________.#86 Assuming all burners are clean and the fuel oil is at the correct temperature, it is considered good practice to adjust the excess air until a light brown haze is obtained. With the aid of a chemical based flue gas analyzer, the percentage readings (not necessarily in order) should indicate _______________.#87 When burning fuel oil in a boiler, a high CO2 content is desired in the stack gas because _______________.