Yuchai .YC6C935N-D30 500kw Natural Gas Generator Set

Genset parameters
Model: MLY500
Rated power: 500 kW/625 kVA
Rated speed: 1,500 r/min
Rated voltage: 400 V
Rated current: 902A
Frequency: 50 Hz
Power factor: 0.8 (lagging)
Electrical efficiency: ≥33.2%
Gas consumption: 190.1 m³/h
Noise: ≤110 dB(A) @ 1m
Starting mode: electronic
Weight: 8,890 kg

Engine parameters
Engine model: YC6C935N-D30
Rated power: 625 kW
Rated speed: 1,500 r/min
Number of cylinders: 6
Form: L-type, four-stroke, water-cooling
Bore × stroke: 200 mm × 210 mm
Displacement: 39.5 L
Compression ratio: 11.5:1
Control system: ECU
Oil consumption rate: ≤0.3 g/kWh
Coolant capacity (excluding radiator): 120 L
Oil capacity: 160 L
Overhaul interval: 40,000 h

Alternator parameters
Alternator model: GZSTF Power STF500-1-4
Wiring mode: three-phase four-wire system (Y type)
Voltage regulation mode: AVR
IP grade: IP23
Insulation class: H

Heat balance parameters
Coolant heat of cylinder liner (±8%): 419 kW
Coolant heat of oil cooler (±8%): 109 kW
Total coolant heat of high-temperature cooling system (±8%): 528 kW
Coolant heat of intercooler (±8%): 146 kW
Total coolant heat of low-temperature cooling system (±8%): 146 kW
Waste heat of exhaust gas (with the exhaust gas temperature up to 120°C) (±8%): 332 kW
Power loss of auxiliary equipment: 20 kW
Total radiant heat (±8%): 61 kW

Cooling parameters
Flow rate of high-temperature circulating water: 52.2 m³/h
Inlet water temperature of cylinder liner (±2%): 77.3°C
Outlet water temperature of cylinder liner (±2%): 86°C
Flow rate of low-temperature circulating water: 52.2 m³/h
Low-temperature inlet water temperature (±2%): 40°C
Low-temperature outlet water temperature (±2%): 42.4°C

Intake and exhaust parameters
Air intake: 3033 kg/h
Gas intake: 124 kg/h
Air displacement: 3157 kg/h
Exhaust temperature after turbocharger (±5%): 460°C

Test conditions
Calorific value of gas: 9.1 kWh/m³
Volume content of methane: ≥95%
Gas temperature: 10~40°C
Gas humidity: ≤60%
Gas intake pressure: 10~30 kPa
Air intake negative pressure: >3 kPa
Exhaust back pressure: <5 kPa
Absolute atmospheric pressure: 101.32 kPa
Ambient temperature: ≤30%
Relative humidity: ≤30%
Altitude: ≤1,000 m

Note: All data of the gas genset are measured in the above test environment.