This section is available on request - MAN Diesel & Turbo
This section is available on request - MAN Diesel & Turbo
This section is available on request - MAN Diesel & Turbo
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<strong>MAN</strong> B&W 16.01<br />
Engine C<strong>on</strong>trol System ME-GI<br />
The Engine C<strong>on</strong>trol System for the �GI engine <str<strong>on</strong>g>is</str<strong>on</strong>g><br />
prepared for c<strong>on</strong>venti<strong>on</strong>al remote c<strong>on</strong>trol, having<br />
an interface to the Bridge C<strong>on</strong>trol system and the<br />
Local Operating Panel (LOP).<br />
The LOP replaces the Engine Side C<strong>on</strong>trol of the<br />
MC engines.<br />
ME-GI Engine Operating Modes<br />
The Electr<strong>on</strong>ic C<strong>on</strong>trol System of the -GI engines<br />
<str<strong>on</strong>g>is</str<strong>on</strong>g> designed for applicati<strong>on</strong> of four different engine<br />
operating modes.<br />
What are operating modes?<br />
An operating mode <str<strong>on</strong>g>is</str<strong>on</strong>g> a complete set of engine<br />
parameters for: injecti<strong>on</strong> profile (NO x em<str<strong>on</strong>g>is</str<strong>on</strong>g>si<strong>on</strong> /<br />
SFOC optim<str<strong>on</strong>g>is</str<strong>on</strong>g>ati<strong>on</strong> and cross�over effects), injecti<strong>on</strong><br />
timing (Maximum cylinder pressure), exhaust<br />
valve opening (blow�back), exhaust valve closing<br />
(compressi<strong>on</strong> ratio), covering the complete engine<br />
load and speed ranges.<br />
These data are designed to fulfil the requirement<br />
of shipowner, yard, engine builder and engine designer.<br />
All -GI engines will be delivered with standard<br />
dual fuel operating mode and HFO operating<br />
mode set�up and <strong>on</strong>e opti<strong>on</strong>al mode:<br />
1) Dual Fuel Ec<strong>on</strong>omy Operating Mode,<br />
to Comply with IMO NO x em<str<strong>on</strong>g>is</str<strong>on</strong>g>si<strong>on</strong> limitati<strong>on</strong>s,<br />
EoD 4 06 066.<br />
The dual fuel operating mode <str<strong>on</strong>g>is</str<strong>on</strong>g> designed to<br />
apply for an engine load above 30%. Above<br />
30% engine load, gas can be supplied to an<br />
engine as main fuel <strong>on</strong> top of a minimum of 5%<br />
pilot oil, which <str<strong>on</strong>g>is</str<strong>on</strong>g> necessary to c<strong>on</strong>trol the timing<br />
of the combusti<strong>on</strong>, Fig. 16.01.01.<br />
Between 30% and 110% load the operator can<br />
choose the ratio of fuel oil and gas, depending<br />
of <str<strong>on</strong>g>available</str<strong>on</strong>g> boil�off gas, Fig. 16.01.01.<br />
Page 1 of 11<br />
178 52 61�4.<br />
Fig. 16.01.01: Fuel type modes � <strong>MAN</strong> B&W two�stroke<br />
dual fuel low speed diesel<br />
<str<strong>on</strong>g>Th<str<strong>on</strong>g>is</str<strong>on</strong>g></str<strong>on</strong>g> operating mode <str<strong>on</strong>g>is</str<strong>on</strong>g> designed to give the<br />
best possible SFOC at all normal operating<br />
c<strong>on</strong>diti<strong>on</strong>s, ensuring optimal operating ec<strong>on</strong>omy<br />
in the complete range between 60 to 100%<br />
engine load.<br />
A typical example for expected engine performance<br />
parameters <str<strong>on</strong>g>is</str<strong>on</strong>g> given in Fig.1.05.01,<br />
clearly indicating the high compressi<strong>on</strong> and<br />
maximum pressures in the high load range, ensuring<br />
optimal SFOC.<br />
<strong>MAN</strong> B&W ME/ME-C/ME-B/-GI engines 198 49 28-03<br />
<strong>MAN</strong> <strong>Diesel</strong><br />
Fuel<br />
100%<br />
8%<br />
Fuel<br />
100%<br />
8%<br />
‘Minimum fuel’ mode<br />
30 � 40%<br />
Fuel<br />
‘Specified gas’ mode<br />
Fuel<br />
Gas<br />
Gas<br />
100% load<br />
100% load
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