51/60 DF Competitive Advantages CR Pilot Fuel Oil Pump
51/60 DF Competitive Advantages CR Pilot Fuel Oil Pump
51/60 DF Competitive Advantages CR Pilot Fuel Oil Pump
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<strong>51</strong>/<strong>60</strong> <strong>DF</strong> <strong>Competitive</strong> <strong>Advantages</strong><br />
<strong>CR</strong> <strong>Pilot</strong> <strong>Fuel</strong> <strong>Oil</strong> <strong>Pump</strong><br />
Electrical driven <strong>CR</strong> <strong>Fuel</strong> oil <strong>Pump</strong>:<br />
Maintenance during engine operation possible<br />
Reduced torsional vibrations on pump drive<br />
Compact system with leak detection (test can be carried out also when<br />
engine is out of operation), pressure relief valve, emergency shut off valve<br />
Same arrangement for L and V engine<br />
=> easy spare part management<br />
<strong>51</strong>/<strong>60</strong><strong>DF</strong> Engine – The New Prime Mover for LNG Carriers<br />
© MAN Diesel SE<br />
10/04/2007
<strong>51</strong>/<strong>60</strong> <strong>DF</strong> <strong>Competitive</strong> <strong>Advantages</strong><br />
Pressure Relief Valve Design<br />
<strong>51</strong>/<strong>60</strong><strong>DF</strong> Engine – The New Prime Mover for LNG Carriers<br />
410 mm diameter pressure relief<br />
valve at the charge air manifold<br />
(ensures efficient pressure relief),<br />
according to <strong>DF</strong> safety concept<br />
Rocker arm casing (Casting: GGG40),<br />
according to <strong>DF</strong> safety concept<br />
320 mm diameter pressure relief<br />
valve at exhaust gas manifold<br />
to protect turbine side of the TC<br />
© MAN Diesel SE<br />
10/04/2007
<strong>51</strong>/<strong>60</strong> <strong>DF</strong> <strong>Competitive</strong> <strong>Advantages</strong><br />
Installation of Electrical Equipment<br />
Flexible mounted control cabinets on engine<br />
=> long life time of<br />
the electrical equipment<br />
=> high availability of the engine<br />
<strong>51</strong>/<strong>60</strong><strong>DF</strong> Engine – The New Prime Mover for LNG Carriers<br />
direct mounted electronic on engine<br />
© MAN Diesel SE<br />
10/04/2007
CONTENTS<br />
1. <strong>Advantages</strong> of the <strong>DF</strong>-Electric Propulsion System<br />
2. Focus of the <strong>51</strong>/<strong>60</strong><strong>DF</strong> Engine Development<br />
3. Engine Design<br />
4. Analytical Optimization and Main Technical Data<br />
5. <strong>51</strong>/<strong>60</strong><strong>DF</strong>: <strong>Competitive</strong> Technical <strong>Advantages</strong><br />
6. Status of <strong>51</strong>/<strong>60</strong><strong>DF</strong> Tests<br />
<strong>51</strong>/<strong>60</strong><strong>DF</strong> Engine – The New Prime Mover for LNG Carriers<br />
© MAN Diesel SE<br />
10/04/2007
Short Operation<br />
HFO Test, 01 / 2007<br />
Long Operation<br />
HFO Test, Q4 / 2007<br />
Gas / MDO + HFO Tests<br />
Change Over Procedure<br />
Change fuel mode from Gas HFO:<br />
Direct change over always possible<br />
Change fuel mode from HFO Gas:<br />
Case 1: Short operation on HFO<br />
Direct change over possible<br />
Case 2: Long operation on HFO<br />
Carbon deposits expected => risk of knocking in gas mode<br />
check whether an acceptable carbon deposit condition can be<br />
achieved by intermediate operation on MDO<br />
required time interval for MDO operation to be determined<br />
define the time limit for short / long operation on HFO<br />
<strong>51</strong>/<strong>60</strong><strong>DF</strong> Engine – The New Prime Mover for LNG Carriers<br />
© MAN Diesel SE<br />
10/04/2007
Gas / MDO + HFO Tests<br />
All HFO tests are carried out with a fuel quality representing<br />
the average HFO properties available around the world!<br />
IF 380 (ISO 8217, ISO-F-RMG 380)<br />
Sulphur Content ~ 3%<br />
<strong>51</strong>/<strong>60</strong><strong>DF</strong> Engine – The New Prime Mover for LNG Carriers<br />
© MAN Diesel SE<br />
10/04/2007
Gas / MDO + HFO Tests<br />
Theoretical LO Requirements<br />
Gas operation:<br />
99% Gas + 1% MDO pilot fuel<br />
Requirement: Lube oil with TBN 5 - 14<br />
MDO operation:<br />
99% MDO + 1% MDO pilot fuel<br />
Requirement: Lube oil with TBN 14 - 20<br />
HFO operation:<br />
99% HFO + 1% MDO pilot fuel<br />
Requirement: Lube oil with TBN 30 - 40<br />
<strong>51</strong>/<strong>60</strong><strong>DF</strong> Engine – The New Prime Mover for LNG Carriers<br />
One Lube <strong>Oil</strong><br />
with TBN 14<br />
recommended<br />
© MAN Diesel SE<br />
10/04/2007
Gas / MDO + HFO Tests<br />
Single Lube <strong>Oil</strong> Investigation<br />
Operation on HFO with single lube oil of BN 14<br />
Operation on Gas / MDO with single lube oil of BN 30 - 40<br />
These tests already started in 10/2006<br />
After around 500 hours on Gas / MDO the calcium deposits<br />
on the piston are still acceptable.<br />
Tests will be continued until condition with unacceptable deposits<br />
is reached Time limit for Gas operation with single LO of high BN<br />
<strong>51</strong>/<strong>60</strong><strong>DF</strong> Engine – The New Prime Mover for LNG Carriers<br />
© MAN Diesel SE<br />
10/04/2007
LNG Carrier Propulsion Concepts<br />
MAN Diesel SE<br />
YOUR PARTNER<br />
FOR THE LNG FUTURE !<br />
<strong>51</strong>/<strong>60</strong><strong>DF</strong> Engine – The New Prime Mover for LNG Carriers<br />
© MAN Diesel SE<br />
10/04/2007
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