Man L21/31S User Manual

Main Particulars
Cycle : 4-stroke
Configuration : In-line
Cyl. nos available : 5 - 6 - 7 - 8 - 9
Power range : 1500 - 2970 kW (HFO/MDO)
Speed : 720 / 750 rpm
Bore : 270 mm
Stroke : 380 mm
Stroke/bore ratio : 1.4 : 1
Piston area per cyl. : 572.6 cm
2
swept volume per cyl. : 21.8 ltr
Compression ratio : 15.9 : 1
Turbocharging principle : Constant pressure system and intercooling
Fuel quality acceptance : HFO (up to 700 cSt/50º C, RMK700)
MDO (DMB) - MGO (DMA, DMZ)
according ISO8217-2010
Power lay-out
MCR version
Speed rpm 720 750
Mean piston speed m/sec. 9.1 9.5
Mean effective pressure
5 cyl. engine (HFO/MDO)
6, 7, 8, 9 cyl. engine (HFO/MDO)
bar
bar
23.0
25.3
23.5
24.3
Max. combustion pressure
5 cyl. engine (HFO/MDO)
6, 7, 8, 9 cyl. engine (HFO/MDO)
bar
bar
190
200
190
200
Power per cylinder
5 cyl. engine (HFO/MDO)
6, 7, 8, 9 cyl. engine (HFO/MDO)
kW per cyl.
kW per cyl.
300
330
320
330
MAN Diesel & Turbo
3700157-5.1
Page 1 (1)
Main particulars
B 10 01 1
L27/38S
2011.09.05 - WB1 - WB2 - GenSet

Man L21/31S Specifications

General

Brand	Man
Model	L21/31S
Category	Portable Generator
Language	English