WÄRTSILÄ PAAE051728, Instruction Manual

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The CCAI is not an exact tool for judging fuel ignition properties.
Following rough guidelines can however be given:
·
Engines running at constant speed and load over 50 % can
without difficulty use fuels with CCAI-values of up to 870.
·
Engines running at variable speed and load can without diffi-
culty run on fuels with CCAI-values up to 860.
To avoid difficulties with poor ignition quality fuels the following
should be noted:
·
Sufficient preheating of the engine before start.
·
Proper function of the inverse cooling system.
·
Proper function of the injection system, especially the injection
nozzle condition must be good.
Nomogram for deriving CCAI
820
840
860
880
900
920
940
960
980
1000
1020
1040
800
810
820
830
840
850
860
870
880
890
900
910
920
930
4
5
6
7
8
9
10
15
20
25
30
35
40
50
75
100
150
200
250
300
400
500
750
1000
2
3
4
5
6
7
8
9
10
15
20
25
30
35
40
50
60
VISCOSITY
cSt (mm2/s)
CCAI
DENSITY
(kg/m3 at 15˚C)
50˚C 100˚C
Fig 02-3
3202599716
Fuel, Lubricating Oil, Cooling Water 200549-01
02 - 8 W20/W32/W46, W46F, 32, 32LN