Compositional analysis of flue gas coming out of a furnace in respect of O2 and CO2% can be continuously done by a/an___________________?
Correct answer: B. Thermal conductivity cell
- A. Orsat apparatus
- B. Thermal conductivity cell
- C. Zirconia probe
- D. Chromatograph
Explanation
A thermal-conductivity cell can be used in continuous gas analysis because the mixture's thermal conductivity changes with composition. Orsat analysis is mainly intermittent, while a zirconia probe primarily measures oxygen rather than both oxygen and carbon dioxide.
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