The advantage of firing pulverised coal in the furnace lies in the fact, that it____________________?
Correct answer: C. Accelerates the burning rate and economises on fuel combustion
- A. Permits the use of high ash content coal
- B. Permits the use of low fusion point ash coal
- C. Accelerates the burning rate and economises on fuel combustion
- D. All A., B. and C.
Explanation
Pulverisation greatly increases the coal surface area, accelerating combustion and allowing more complete burning with efficient fuel utilisation. Low-fusion-point ash is undesirable because it can cause slagging, so option B is not an advantage.
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