MAN B&W
11.03
Page 2 of 2
MAN Diesel
MAN B&W MC/MCC, ME/MEC/MEGI/ME-B engines
198 39 872.4
Jacket water system
Due to the central cooler the cooling water inlet
temperature is about 4 °C higher for for this sys-
tem compared to the seawater cooling system.
The input data are therefore different for the scav-
enge air cooler, the lube oil cooler and the jacket
water cooler.
The heat dissipation and the central cooling water
flow figures are based on an MCR output at tropi-
cal conditions, i.e. a maximum seawater tempera-
ture of 32 °C and an ambient air temperature of
45 °C.
Jacket water cooling pump
The pumps are to be of the centrifugal type.
Jacket water flow ............... see ‘List of Capacities’
Pump head ...................................................3.0 bar
Delivery pressure ...............depends on location of
expansion tank
Test pressure .....................according to class rules
Working temperature ..................................... 80 °C
Design temperature ...................................... 100 °C
The flow capacity must be within a range from
100 to 110% of the capacity stated.
The stated of capacities cover the main engine
only. The pump head of the pumps is to be de-
termined on the basis of the total actual pressure
drop across the cooling water system.
Scavenge air cooler
The scavenge air cooler is an integrated part of
the main engine.
Heat dissipation .....................see ‘List of Capacities’
Central cooling water flow .....see ‘List of Capacities’
Central cooling temperature, inlet .................... 36 °C
Pressure drop on FWLT water side .... approx. 0.5 bar
Lubricating oil cooler
See Chapter 8 ‘Lubricating Oil’.
Jacket water cooler
The cooler is to be of the shell and tube or plate
heat exchanger type.
Heat dissipation ................. see ‘List of Capacities’
Jacket water flow ............... see ‘List of Capacities’
Jacket water temperature, inlet ...................... 80 °C
Pressure drop on jacket water side ....max. 0.2 bar
Central cooling water flow ... see ‘List of Capacities’
Central cooling water
temperature, inlet ..............................approx. 42 °C
Pressure drop on Central
cooling water side ................................max. 0.2 bar
The other data for the jacket cooling water system
can be found in chapter 12.
For further information about a common cooling
water system for main engines and MAN Diesel
auxiliary engines, please refer to our publication:
Uniconcept Auxiliary Systems for Twostroke Main
The publication is available at www.mandiesel.com
under ‘Quicklinks’
→
‘Technical Papers’
Summary of Contents for B&W L35MC6-TII
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Page 19: ...MAN B W MAN Diesel Engine Design 1 ...
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Page 35: ...MAN B W MAN Diesel Engine Layout and Load Diagrams SFOC 2 ...
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Page 64: ......
Page 65: ...MAN B W MAN Diesel Turbocharger Selection Exhaust Gas By pass 3 ...
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Page 72: ......
Page 73: ...MAN B W MAN Diesel Electricity Production 4 ...
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Page 95: ...MAN B W MAN Diesel Installation Aspects 5 ...
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Page 147: ...MAN B W MAN Diesel List of Capacities Pumps Coolers Exhaust Gas 6 ...
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Page 171: ...MAN B W MAN Diesel Fuel 7 ...
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Page 187: ...MAN B W MAN Diesel Lubricating Oil 8 ...
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Page 203: ...MAN B W MAN Diesel Cylinder Lubrication 9 ...
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Page 213: ...MAN B W MAN Diesel Piston Rod Stuffing Box Drain Oil 10 ...
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Page 217: ...MAN B W MAN Diesel Central Cooling Water System 11 ...
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Page 223: ...MAN B W MAN Diesel Seawater Cooling System 12 ...
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Page 235: ...MAN B W MAN Diesel Starting and Control Air 13 ...
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Page 243: ...MAN B W MAN Diesel Scavenge Air 14 ...
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Page 257: ...MAN B W MAN Diesel Exhaust Gas 15 ...
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Page 273: ...MAN B W MAN Diesel Engine Control System 16 ...
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Page 289: ...MAN B W MAN Diesel Vibration Aspects 17 ...
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Page 305: ...MAN B W MAN Diesel Monitoring Systems and Instrumentation 18 ...
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Page 329: ...MAN B W MAN Diesel Dispatch Pattern Testing Spares and Tools 19 ...
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Page 361: ...MAN B W MAN Diesel Project Suppport and Documentation 20 ...
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Page 371: ...MAN B W MAN Diesel Appendix A ...
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