
Technical specifications of the 4000 gas piston generator:
Power, kW 4000
Rotation speed, rpm 1000 (50 Hz)
Mean effective pressure, bar 20
Exhaust gas temperature (approx.), °C 436
Wet exhaust gas mass (approx.), kg/h 22217
Combustion air quantity (approx.), kg/h 21488
Supply air temperature (min./opt.), °C 10/25
Supply air quantity (approx.), kg/h 114305
Cylinder bore/stroke, mm 260/320
Displacement, dm3 271.8
Compression ratio 12.0:1
Average piston speed, m/s 10.7
Lubricating oil capacity, dm³ 2200
Average oil consumption at full load, g/kWh 0.30
Generator efficiency, % 97.95
Electric power at generator terminals, kW 4300
Cooling jacket heat transfer capacity (± 8%), kW 1538
Second-stage intercooler heat transfer capacity (± 8%), kW 326
Exhaust heat transfer capacity, cooled to 120°C (± 8%), kW 2240
Engine heat radiation, kW 220
Generator heat radiation, kW 90
Fuel consumption capacity (+ 5%), kW 9891
Electrical efficiency, % 43.5
Thermal efficiency, % 43.7
Overall efficiency, % 87.2
Cooling jacket flow rate (min/max), m³/h 105/130
Engine KVS coefficient, m³/h 93.0
Intercooler coolant flow rate, m³/h 65
Intercooler KVS coefficient, m³/h 57
Cooling jacket volume, dm³ 570
Intercooler coolant volume, dm³ 51
