Final Calculation; Exhaust Gas Data At Specified Mcr (Iso) - Man B&W S50ME-B9.3-TII Project Manual

Electronically controlled two-stroke engines with camshaft controlled exhaust valves
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Final calculation

By means of equations [4] and [5], the final result is
found taking the exhaust gas flow M
ture T
from the 'List of Capacities':
L1
M
= 80,800 kg/h
L1
9,612
_____
M
= 80,800 x
10,680
exh
___
___
1.11
7.1
(1 +
) x (1 +
) x
100
100
M
= 62,800 kg/h ±15%
exh
The exhaust gas temperature
T
= 235 °C
L1
T
= 235 - 3.9  8.8  18.8 = 203.5 °C
exh
T
= 203.5 °C ±5 °C
exh
MAN B&W S50ME-B9.3\-TII
and tempera-
L1
____
-0.25
x (1 +
) x
100
___
80
= 62,841 kg/h
100

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%
For ISO ambient reference conditions where
= 0.0 and ∆T
∆M
amb%
calculations will be as follows:
M
= 80,800 x
exh,M
x (1 +
M
= 72,600 kg/h ±15%
exh,M
T
= 235 - 3.9 + 0 + 0 = 231.1 °C
exh,M
T
= 231.1 °C ±5 °C
exh,M
The air consumption will be:
72,558 x 0.982 kg/h = 71,252 kg/h <=>
71,252 / 3,600 kg/s = 19.8 kg/s
MAN Diesel
= 100, ∆m
= 0.0 and ∆T
s%
= 0.0, the corresponding
amb
_____
9,612
____
-0.25
x (1 +
10,680
100
___
____
0.0
100.0
) x
= 72,558 kg/h
100
100
6.04
Page 12 of 12
= 0.0.
s
___
0.0
) x (1 +
)
100
198 90 85-7.0

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