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MAN B&W
11.02
Page 1 of 1
MAN Diesel
MAN B&W MC/MCC, ME/MEC/MEGI/ME-B engines
198 40 579.5
Central Cooling Water System
Fig. 11.02.01: Central cooling water system
The central cooling water system is characterised
by having only one heat exchanger cooled by
seawater, and by the other coolers, including the
jacket water cooler, being cooled by central cool-
ing water.
In order to prevent too high a scavenge air tem-
perature, the cooling water design temperature
in the central cooling water system is normally 36
°C, corresponding to a maximum seawater tem-
perature of 32 °C.
Our recommendation of keeping the cooling water
inlet temperature to the main engine scavenge
air cooler as low as possible also applies to the
central cooling system. This means that the tem-
perature control valve in the central cooling water
circuit is to be set to minimum 10 °C, whereby the
temperature follows the outboard seawater tem-
perature when central cooling water temperature
exceeds 10 °C.
For external pipe connections, we prescribe the
following maximum water velocities:
Jacket water ................................................ 3.0 m/s
Central cooling water .................................. 3.0 m/s
Seawater ..................................................... 3.0 m/s
178 52 771.1
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Summary of Contents for S65ME-C8.2-GI-TII
Page 4: ......
Page 10: ......
Page 11: ...MAN B W MAN Diesel Engine Design 1...
Page 12: ......
Page 29: ...MAN B W MAN Diesel Engine Layout and Load Diagrams SFOC 2...
Page 30: ......
Page 53: ...MAN B W MAN Diesel Turbocharger Selection Exhaust Gas By pass 3...
Page 54: ......
Page 58: ......
Page 59: ...MAN B W MAN Diesel Electricity Production 4...
Page 60: ......
Page 100: ......
Page 101: ...MAN B W MAN Diesel Installation Aspects 5...
Page 102: ......
Page 136: ......
Page 145: ...MAN B W MAN Diesel List of Capacities Pumps Coolers Exhaust Gas 6...
Page 146: ......
Page 164: ......
Page 165: ...MAN B W MAN Diesel Fuel 7...
Page 166: ......
Page 186: ......
Page 207: ...MAN B W MAN Diesel Lubricating Oil 8...
Page 208: ......
Page 228: ......
Page 229: ...MAN B W MAN Diesel Cylinder Lubrication 9...
Page 230: ......
Page 239: ...MAN B W MAN Diesel Piston Rod Stuf ng Box Drain Oil 10...
Page 240: ......
Page 242: ......
Page 243: ...MAN B W MAN Diesel Central Cooling Water System 11...
Page 244: ......
Page 249: ...MAN B W MAN Diesel Seawater Cooling System 12...
Page 250: ......
Page 262: ......
Page 263: ...MAN B W MAN Diesel Starting and Control Air 13...
Page 264: ......
Page 269: ...MAN B W MAN Diesel Scavenge Air 14...
Page 270: ......
Page 281: ...MAN B W MAN Diesel Exhaust Gas 15...
Page 282: ......
Page 295: ...MAN B W MAN Diesel Engine Control System 16...
Page 296: ......
Page 316: ......
Page 317: ...MAN B W MAN Diesel Vibration Aspects 17...
Page 318: ......
Page 332: ......
Page 333: ...MAN B W MAN Diesel Monitoring Systems and Instrumentation 18...
Page 334: ......
Page 354: ......
Page 360: ......
Page 361: ...MAN B W MAN Diesel Dispatch Pattern Testing Spares and Tools 19...
Page 362: ......
Page 368: ......
Page 380: ......
Page 381: ...MAN B W MAN Diesel Project Support and Documentation 20...
Page 382: ......
Page 391: ...MAN B W MAN Diesel Appendix A...
Page 392: ......