MAN B&W
6.04
Page 9 of 12
MAN Diesel
MAN B&W S46MC-C8, S42MC7, S35MC7,
L35MC6, S26MC6
198 63 69-4.0
∆
m
M%
: change of specific exhaust gas amount, in
% of specific gas amount at nominal MCR
(L
1
), see Fig. 6.04.07.
∆
T
M
: change in exhaust gas temperature after
turbocharger relative to the L1 value, in °C,
see Fig. 6.04.08. (P
O
= P
M
)
∆
T
O
: extra change in exhaust gas temperature
when optimising point O lower than 100% M:
P
O%
= (P
O
/P
M
) x 100%.
∆
T
O
= 0.3 x (100 P
O%
) = 0
[6]
as P
O%
= 100 for this engine type
b) Correction for actual ambient conditions and
backpressure
For ambient conditions other than ISO
3046-1:2002 (E) and and backpressure other
than 300 mm WC at specified MCR point (M),
the correction factors stated in the table in
Fig. 6.04.09 may be used as a guide, and the
corresponding relative change in the exhaust
gas data may be found from equations [7] and
[8], shown in Fig. 6.04.10.
Parameter
Change
Change of
exhaust gas
temperature
Change of
exhaust gas
amount
Blower inlet temperature
+ 10° C
+ 16.0° C
4.1 %
Blower inlet pressure (barometric pressure)
+ 10 mbar
0.1° C
+ 0.3 %
Charge air coolant temperature (seawater temperature)
+ 10° C
+ 1.0° C
+ 1.9 %
Exhaust gas back pressure at the specified MCR point
+ 100 mm WC
+ 5.0° C
1.1 %
Fig. 6.04.09: Correction of exhaust gas data for ambient conditions and exhaust gas back pressure
∆
m
M%
= 14 x ln (P
M
/P
L1
) – 24 x ln (n
M
/n
L1
)
Fig. 6.04.07: Change of specific exhaust gas amount,
∆
m
M%
in % of L
1
value and independent of P
O
∆
T
M
= 15 x ln (P
M
/P
L1
) + 45 x ln (n
M
/n
L1
)
Fig. 6.04.08: Change of exhaust gas temperature,
∆
T
M
in point M, in °C after turbocharger relative to L
1
value
178 51 11-7.2
178 51 13-0.2
L
4
L
1
L
3
L
2
PM%
M
110%
100%
90%
80%
70%
80%
85%
90%
95%
M%
Specified MCR engine speed, % of L
1
60%
105%
100%
110% n
Specified MCR power, % of L
1
0 °C
∆
T
m
10 °C
8 °C
6 °C
4 °C
12 °C
2 °C
L
2
L
4
L
1
L
3
PM%
110%
100%
90%
80%
70%
80%
85%
90%
95%
M%
Specified MCR engine speed, % of L
1
60%
105%
100%
110% n
∆
m
M%
M
1%
0%
1%
2%
3%
Specified MCR power, % of L
1
Summary of Contents for B&W L35MC6-TII
Page 4: ......
Page 10: ......
Page 18: ......
Page 19: ...MAN B W MAN Diesel Engine Design 1 ...
Page 20: ......
Page 35: ...MAN B W MAN Diesel Engine Layout and Load Diagrams SFOC 2 ...
Page 36: ......
Page 52: ......
Page 64: ......
Page 65: ...MAN B W MAN Diesel Turbocharger Selection Exhaust Gas By pass 3 ...
Page 66: ......
Page 72: ......
Page 73: ...MAN B W MAN Diesel Electricity Production 4 ...
Page 74: ......
Page 95: ...MAN B W MAN Diesel Installation Aspects 5 ...
Page 96: ......
Page 132: ......
Page 146: ......
Page 147: ...MAN B W MAN Diesel List of Capacities Pumps Coolers Exhaust Gas 6 ...
Page 148: ......
Page 171: ...MAN B W MAN Diesel Fuel 7 ...
Page 172: ......
Page 186: ......
Page 187: ...MAN B W MAN Diesel Lubricating Oil 8 ...
Page 188: ......
Page 203: ...MAN B W MAN Diesel Cylinder Lubrication 9 ...
Page 204: ......
Page 213: ...MAN B W MAN Diesel Piston Rod Stuffing Box Drain Oil 10 ...
Page 214: ......
Page 215: ......
Page 217: ...MAN B W MAN Diesel Central Cooling Water System 11 ...
Page 218: ......
Page 223: ...MAN B W MAN Diesel Seawater Cooling System 12 ...
Page 224: ......
Page 234: ......
Page 235: ...MAN B W MAN Diesel Starting and Control Air 13 ...
Page 236: ......
Page 242: ......
Page 243: ...MAN B W MAN Diesel Scavenge Air 14 ...
Page 244: ......
Page 256: ......
Page 257: ...MAN B W MAN Diesel Exhaust Gas 15 ...
Page 258: ......
Page 272: ......
Page 273: ...MAN B W MAN Diesel Engine Control System 16 ...
Page 274: ......
Page 289: ...MAN B W MAN Diesel Vibration Aspects 17 ...
Page 290: ......
Page 304: ......
Page 305: ...MAN B W MAN Diesel Monitoring Systems and Instrumentation 18 ...
Page 306: ......
Page 328: ......
Page 329: ...MAN B W MAN Diesel Dispatch Pattern Testing Spares and Tools 19 ...
Page 330: ......
Page 360: ......
Page 361: ...MAN B W MAN Diesel Project Suppport and Documentation 20 ...
Page 362: ......
Page 371: ...MAN B W MAN Diesel Appendix A ...
Page 372: ......