Question 266Steam Plants - Assistant Engineer
70% to passTo obtain the best mixing of air and fuel with a fuel oil atomizer, you need to adjust the _______________.
Aprimary and secondary air cones for desired air flow
Btotal air volume admitted to the boiler furnace
Cdiffuser to the desired flow
Datomizer position using the distance piece
AI Explanation
The correct answer is D) atomizer position using the distance piece. The positioning of the atomizer is critical for achieving the best air and fuel mixing in a fuel oil system. By adjusting the atomizer position using the distance piece, you can optimize the spray pattern and droplet size, which in turn improves the air-fuel mixture for efficient combustion. The other options are incorrect because they do not directly address the key factor of atomizer positioning. Adjusting the air cones (A) or total air volume (B) can affect the combustion process, but do not specifically target the atomizer setup. Adjusting the diffuser (C) is not the primary means of controlling the air-fuel mixture.
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