Man L23/30DF, Руководство по проекту

Страница: 36 / 392

Conditions
Reference condition : Tropic
Air temperature
LT water temperature inlet engine (from system)
Air pressure
Relative humidity
°C
°C
bar
%
45
38
1
50
Temperature basis:
Set point HT cooling water engine outlet 1)
Set point LT cooling water engine outlet
2)
Set point lubrication oil inlet engine
°C
°C
°C
79°C nominal
(Range of mech. thermostatic element 77-85°C)
35°C nominal
(Range of mech. thermostatic element 29-41°C)
66°C nominal
(Range of mech. thermostatic element 63-72°C)
Remarks to capacities
1)
2)
3)
4)
5)
6)
7)
8)
9)
HT cooling water flows first through HT stage charge air cooler, then through water jacket and cylinder head, water
temperature outlet engine regulated by mechanical thermostat.
LT cooling water flows first through LT stage charge air cooler, then through lube oil cooler, water temperature
outlet engine regulated by mechanical thermostat.
Tolerance: + 10% for rating coolers, - 15% for heat recovery.
Basic values for layout of the coolers.
Under above mentioned reference conditions.
Tolerance: qu/- 5%, tempe/- 20°C.
Under below mentioned temperature at turbine outlet and pressure according above mentioned reference condi-
tions.
Tolerance of the pumps' delivery capacities must be considered by the manufactures.
In order to ensure sufficient flow through the engine fuel system the capacity of the fuel oil circulation pumps must
be minimum 3 times the full load consumption of the installed engines
High temperature alarms can occur for some
engine types running 100% MCR with SCR cata-
lyst (50 mbar exhaust back pressure) and tropi-
cal condition (ambient air 45°C & LT-water
38°C).
MAN Diesel & Turbo
D 10 05 0
List of capacities
1689472-9.4
Page 2 (2)
L27/38S, L27/38
2017.03.03 - 330 kW, 750 rpm