Sheldon 1 -
De-energized precip ash is 20-30% carbon, LOI |
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(loss-of-ignition) =
20-30% |
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Sheldon 2 -
De-energized precip ash is 40-50% carbon. |
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* Explain briefly why unit 2 (actually 2 is
higher) is higher |
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Mid-90's - Sheldon 1 burner fronts modified
to preheat coal before entry (scroll burners). With the scroll burners, the coal is
pre-heated which allows more efficient combustion inside the cyclone, thus
less LOI. |
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