TM 5-815-1/AFR 19-6
b. Sample Problem Number 1. An underfed stoker
(b) 65 pounds/ton x ton/2000 pounds = .0325
fired boiler burns bituminous coal of the analysis
pound of particulate/pound of coal
shown below. If this unit is rated at 10 MM Btu per
hour (hr) of fuel input, what are the estimated emission
rates?
(2)
Using table 3-3, SO2 emissions are given as
38S pound/ton of coal, where S is the
percent sulfur in the coal.
(a) 38 x .7% sulfur = 26.6 pounds of SO2/ton
(1) Using table 3-3 (footnote e), particulate emis-
sions are given as 5A pound/ton of coal
of coal
(b) 26.6 pounds/ton = ton/2000 pounds =
where A is the percent ash in the coal.
(a) 5x13% ash = 65 pounds of particulate/ton
.0133 pound of SO2/pound of coal
of coal.
3-7
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