i.
Gas temperature leaving boiler:
[_____] degrees C F
j.
Total forced draft fan static pressure:
[_____] Pa inches WC
k.
Gas draft at boiler outlet:
[_____] Pa inches WC
l.
Oxygen (O2) concentration in flue gas:
[_____] percent
m.
Carbon monoxide (CO) flue gas concentration:
[_____] ppm
n.
Nitrogen oxide (NOx) conc. in flue gas:
[_____] ppm
o.
Boiler efficiency:
[_____] percent
1.3.1.2
Economizer
a.
Design pressure:
[_____] kPa (gage) psig
b.
[_____] kPa (gage) psig
c.
Fuel [Natural Gas] [No.:
[_____] Fuel Oil]
d.
Specific heat of the flue gas:
[_____] kJ/kg.C Btu/lb-degree F
e.
Feedwater flow:
[_____] L/s gpm
f.
Flue gas temperature entering economizer:
[_____] degrees C F
g.
Flue gas temperature leaving economizer:
[_____] degrees C F
h.
Feedwater temperature entering economizer:
[_____] degrees C F
i.
Feedwater temperature leaving economizer:
[_____] degrees C F
**************************************************************************
NOTE: Unless fuel oil to be burned has an uncommon
tendency to foul tubes, finned tube economizers
should be suitable for gas and oil. Feedwater
temperatures should be 110 degrees C 230 degrees F
when sulphur (S) content of oil is 0.5 percent to
1.5 percent; 116 degrees C 240 degrees F, S=1.5
percent to 2 percent; 121 degrees C 250 degrees F,
S=2.0 percent to 2.7 percent.
**************************************************************************
j.
Maximum pressure drop, economizer gas side:
[_____] Pa in. WC
k.
Maximum pressure drop, economizer water side:
[_____] kPa psi
l.
Fouling factor on feedwater side:
[_____]
m.
Fouling factor on gas side:
[_____].
1.3.1.3
Fans
Design fan to handle air at temperatures from [_____] to [_____] degrees C F.
Fan shall be [single] [double] width inlet, [single] [double] width
outlet, with [clockwise] [counter clockwise] rotation when viewed from the
motor end.
SECTION 15511N
Page 15
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