TM 5-815-1/AFR 19-6
p
= barometric pressure in
inches of mercury at the
test equipment conditions.
(2) To convert particulate loadings given as
pounds per 1000 pounds of dry gas at 50
Percent carbon is by weight from the ultimate analy-
percent excess air, equation 2-2 applies.
sis of the refuse. The GCV and tons of refuse must be
consistent with the ultimate analysis. If the ultimate
analysis is on a dry basis, the GCV and tons of refuse
must be on a dry basis.
(5) To convert grains per dry standard cubic foot
at 7 percent O2 to grains per dry standard
cubic foot at 12 percent CO2, equation 2-8
where: C at 50 percent EA = pounds of
applies.
particulate per 100 pounds of gas at 50
percent excess air
M
= Molecular weight of the
(6) To convert pounds of particulate per million
gas sample
British thermal units fired to grains per dry
standard cubic foot at 12 percent CO2, equa-
tion 2-9 applies.
M = .16 CO2 + .04 O2 + 28
(eq. 2-4)
where: N2 = percent N2 from Orsat
analysis
O2 = percent O2 from Orsat
analysis
2-8 Sample calculations
CO = percent CO from Orsat
analysis
a. An industrial multichamber incinerator burns a
CO2 = percent CO2 from Orsat
type I waste at 10 percent moisture of the analysis
analysis
shown below. What is the estimated particulate emis-
(3) To convert grains per dry standard cubic foot
sion rate in grains per dry standard cubic foot at 12
at 50 percent excess air to grains per dry
percent CO2?
standard cubic foot at 12 percent CO2, equa-
Waste Analysis (Percent by Weight on Wet Basis)
tion 2-5 applies.
Carbon
50 percent
Heating value
8500 Btu/lb
(1) Table 2-3 lists industrial multichamber incin-
erators as having a particulate emission
factor of 7 lb/ton of refuse.
(2) Using equation 2-7,
(4) To convert pounds of particulate per ton of
refuse charged to grains per dry standard
cubic foot at 12 percent CO2, equation 2-6
(3) Using equation 2-6,
applies.
b. Test data from an incinerator indicates a particu-
late concentration of 0.5 gr/ft3 at 9 percent CO2. Cor-
where: GCV = gross calorific value of
rect the particulate concentration to grains per dry
waste, British thermal
standard cubic foot at 12 percent CO2. Test conditions
units (Btu)/lb
were at 72 degrees Fahrenheit and a barometric pres-
Fc
= carbon F factor, std
sure of 24 inches of mercury.
ft3/million (MM) Btu
2-6
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