Combustion Gas Analysis Quiz

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Which gas component is specifically measured in the flue gas analysis to determine combustion efficiency?

Carbon dioxide (CO2)

Oxygen (O2) (correct)

Carbon monoxide (CO)

Nitrogen (N2)

What is the primary purpose of stack emissions monitoring?

To analyze the products of combustion in the flue gas

To measure the various individual components of the flue gas

To determine the efficiency of the combustion process

To monitor the components emitted to atmosphere above certain limits (correct)

How are flue gas constituents typically listed?

By mole fraction

By parts per million (ppm)

By percent weight

By percent volume (correct)

According to Table 13, what is the trend between excess air and flue gas CO2 levels?

As excess air increases, flue gas CO2 levels decrease Signup and view all the answers

According to Example 23, what are the CO2 and O2 percentages in the flue gas of a coal-fired plant with excess air calculated at 60%?

CO2 = 11.3%, O2 = 8% Signup and view all the answers

According to the formulas provided, how is the theoretical air required to burn fuel calculated?

Air(kg/kg of fuel) = (C + N2 + 2*O2 + S)/100 Signup and view all the answers

According to Example 24, what is the percent of excess air used in a coal-fired boiler with the given fuel and flue gas analysis?

13% Signup and view all the answers

Which of the following is the correct conversion from percent by volume to parts per million (ppm)?

Multiply the percentage by 10,000 Signup and view all the answers

What is the conversion of 0.01% CO to parts per million (ppm)?

100 ppm CO Signup and view all the answers

What is the conversion of 0.05% NO^2 to parts per million (ppm)?

500 ppm NO^2 Signup and view all the answers

What is the conversion of 200 ppm NO^2 to percent by volume?

0.02% NO^2 Signup and view all the answers

Combustion Gas Analysis Quiz

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Questions and Answers

Which gas component is specifically measured in the flue gas analysis to determine combustion efficiency?

What is the primary purpose of stack emissions monitoring?

How are flue gas constituents typically listed?

According to Table 13, what is the trend between excess air and flue gas CO2 levels?

According to Example 23, what are the CO2 and O2 percentages in the flue gas of a coal-fired plant with excess air calculated at 60%?

According to the formulas provided, how is the theoretical air required to burn fuel calculated?

According to Example 24, what is the percent of excess air used in a coal-fired boiler with the given fuel and flue gas analysis?

Which of the following is the correct conversion from percent by volume to parts per million (ppm)?

What is the conversion of 0.01% CO to parts per million (ppm)?

What is the conversion of 0.05% NO^2 to parts per million (ppm)?

What is the conversion of 200 ppm NO^2 to percent by volume?

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