... Negative
BA
1
0
20
40
60
80
100
120
140
24 6 810 12
150
14
Excess Air %
O
2
in Flue Gas- % by Volume
10% EXCESS AIR
3% by volume in the Stack
Figure 10. 3 Air-to-Fuel Ratio Chart
Chapter 9
●
Boilers
22 2
clean ... 1 1 5 12
That is,
4 3 12 5 48 pounds of flue gas produced by combustion
TE
AE
PT
PE
AT
TA H
o
I
P
PIC
AIC
AIC
TR
o
I
P
AE
AT
CASC
385ºF
168ºF
low NO
x
Burner
F -2...
... (a process) that
takes a lot of time and effort
6) sanctuary f) to make a place less
attractive by damaging or
destroying it
7) to besiege g) the central and most
important part of a
particular ... appearing lonely and
unhappy
10) haul j) a safe place, especially one
where people who are being
chased or attacked can stay
and be protected
11) to brag k) soft and wet
12) obliv...