Which of the following is the most important deterrents to an extended use of pulverised coal in boiler firing ?
Correct answer: A. Ash disposal problem
- A. Ash disposal problem
- B. Excessive fly ash discharge from the stack
- C. Higher power consumption in its transportation
- D. Erosion of induced draft fan blades
Explanation
Pulverised coal produces a large quantity of fine ash, creating difficult and costly ash-collection and disposal problems. Fly-ash discharge and equipment erosion are consequences of this problem, while transport power is usually not the main deterrent.
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