Feb 01, 2022 · The downflow at the wall was measured at 12.5 m height in the 250 MW e Gardanne CFB boiler, using a 1.5 × 1.5 m box at the wall that led collected material to the outside. It was found to be 100–150 t/h, which translates to a downflow of 1.6–2.5 kg MW –1 s –1, a bit below the needed 8 kg MW –1 s –1 .
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