WÄRTSILÄ Vasa R22, Instruction Manual

Page: 250 / 297

Exhaust gas profiles
When estimating the function of a cylinder on the basis of the
exhaust gas temperatures under normal conditions, the values
recorded in the acceptance test should be used as reference values.
A deviation from them by 50°C is acceptable provided the ambient
conditions and the fuel quality are equivalent to these in the
acceptance test.
Exhaust gas and valve temperatures
300
*
*
*
*
*
tA
(C¡)
1 2
Cylinder
3 4 5 6 7 8
100%
77%
50%
Clockwise rotating engine
300
*
*
*
*
*
tA
(C¡)
1 2
Cylinder
3 4 5 6 7 8
100%
77%
50%
Counter-clockwise rotating engine
Fig 20-2
2220529544
200
*
*
*
* t (C¡)
0 25 50 75 100 Load (%)
Exhaust gas temperature
after cylinder
Temperature in exhaust
valve
Cyl. 7
Cyl. 3
Cyl. 7
Cyl. 3
Fig 20-3
2220539544
22-9601 Exhaust System 20
VASA 22 20 - 3