MAN B&W S65ME-C8.2-GI-TII, Руководство по проекту

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MAN B&W 6.04
Page 9 of 12
MAN Diesel MAN B&W S90MC-C/ME-C8.1-TII, K90MC-C6, G80ME-C9.68-TII,
S80MC-C/ME-C8.1/9.1-TII, K80MC-C/ME-C6-TII, S70MC-C8-TII,
S70ME-C8/-GI-TII, S65MC-C8/ME-C/ME-C8-GI-TII, S/L60MC-C8-TII,
S/L60ME-C8/-GI-TII, S50MC-C8-TII, S50/ME-C8/-GI-TII, G50ME-B9.3-TII,
G45ME-B9.3-TII, G40ME-B9.3-TII, S40MC-C9-TII, S30MC-C9-TII,
S30ME-B9-TII 198 44 20-9.6
Δ
m
M%
: change of specific exhaust gas amount, in
% of specific gas amount at nominal MCR
(L
1
), see Fig. 6.04.07.
Δ
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
)
b) Correction for actual ambient conditions and
backpressure
For ambient conditions other than ISO
3046-1:2002 (E) and ISO 15550:2002 (E), and
backpressure other than 300 mm WC at
specified MCR point (M), the correction fac-
tors 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
Δ
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,
Δ
m
M%
in % of L
1
value
Δ
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,
Δ
T
M
in point M, in °C after turbocharger relative to L
1
value
178 63 66-3.0
178 63 67-5.0
L
4
L
1
L
3
L
2
P
M%
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
Δ
T
m
10 °C
8 °C
6 °C
4 °C
12 °C
2 °C
L
2
L
4
L
1
L
3
P
M%
110%
100%
90%
80%
70%
80% 85% 90% 95%
M%
Specified MCR engine speed, % of L
1
60%
105% 100% 110% n
M
1%
0%
1%
2%
3%
Specified MCR power, % of L
1
Δ
m
M%