May 31, 2020 · Now let’s calculate the money lost due to Excess Blow down F = E / (1- B), Where: F = Feed water requirements, kg/day E = Steam generated, kg/day B = Blow down, percent (expressed as decimal) At 10 percent blow down, F = (5000*24)/ (1- 0.10) = 133,333 kg/day At 5 percent blow down, F = (5000*24)/ (1-0.05) = 126,315 kg/day
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