WinGD X72DF - Page 17

Marine Installation Manual 2021-08 ix
List of Figures
X72DF
List of Figures
0-1 GTD screenshot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0-4
1-1 Power/speed range of the WinGD X-DF engines . . . . . . . . . . . . . . . . . . 1-3
1-2 Principal engine dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
1-3 Operating modes of the X-DF engine. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
1-4 Gas mode operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
1-5 The Flex system parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
1-6 Fuel sharing mode — available operating window. . . . . . . . . . . . . . . . . 1-10
1-7 Fuel sharing mode — energy amount of different ratios of fuel . . . . . . 1-11
1-8 Fuel transfers and gas trips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
2-1 Rating field for the X72DF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2-2 Propeller curves and operational points . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2-3 Power range limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
2-4 Power range diagram of an engine with a PTO. . . . . . . . . . . . . . . . . . . . 2-10
2-5 Power range limits for PTO operation — Method 1 . . . . . . . . . . . . . . . . 2-11
2-6 Power range limits for PTO operation — Method 2 . . . . . . . . . . . . . . . . 2-12
2-7 The prohibited operation area (CMCR speed = R1—R2) . . . . . . . . . . . . 2-13
2-8 Calculating the prohibited operation area for the CMCR speed . . . . . . 2-15
2-9 The prohibited operation area (CMCR speed = 85% of R1—R2) . . . . . 2-16
2-10 The prohibited operation area (CMCR speed = R3—R4) . . . . . . . . . . . . 2-17
3-1 Engine dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3-2 Thermal expansion, dim. X, Y, Z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3-3 Minimum requirements for headroom . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
3-4 Typical shaft earthing arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
3-5 Typical shaft earthing with condition monitoring facility . . . . . . . . . . . 3-18
4-1 LT cooling water system for twin-engine installation . . . . . . . . . . . . . . 4-3
4-2 Separate HT cooling water circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
4-3 LT cooling water circuit — Single set-point temperature . . . . . . . . . . . 4-6