Man B&W L35MC6-TII, Руководство по проекту

Страница: 170 / 375

MAN B&W 6.04
Page 12 of 12
MAN Diesel
MAN B&W L35MC6-TII 198 72 49-0.0
Exhaust gas data at specified MCR (ISO)
At specified MCR (M), the running point may be in
equations [4] and [5] considered as a service point
where P
S%
= 100,
∆
m
s%
= 0.0 and
∆
T
s
= 0.0.
For ISO ambient reference conditions where
∆
M
amb%
= 0.0 and
∆
T
amb
= 0.0, the corresponding
calculations will be as follows:
M
exh,M
= 32,700 x
3,315
____
3,900
x (1 +
+0.25 ____
100
) x (1 +
0.0 ___
100
)
x (1 +
0.0 ___
100
) x
100.0 ____
100
= 27,864 kg/h
M
exh,M
= 27,900 kg/h ±5%
T
exh,M
= 265  7.2  0.0 + 0 + 0 = 257.8 °C
T
exh,M
= 257.8 °C 15 °C
The air consumption will be:
27,864 x 0.982 kg/h = 27,363 kg/h <=>
27,363/3,600 kg/s = 7.6 kg/s
Final calculation
By means of equations [4] and [5], the final result is
found taking the exhaust gas flow M
L1
and tempera-
ture T
L1
from the ‘List of Capacities’:
M
L1
= 32,700 kg/h
M
exh
= 32,700 x
3,315
____
3,900
x (1 +
+0.25
____
100
) x
(1 +
1.11
___
100
) x (1 +
7.1 ___
100
) x
80 ___
100
= 24,139 kg/h
M
exh
= 24,100 kg/h ±5%
The exhaust gas temperature
T
L1
= 265 °C
T
exh
= 265  7.2  0.0  8.8  18.8 = 230.2 °C
T
exh
= 230.2 °C 15 °C