How Does a Natural Gas Generator Work?

Natural gas generators convert chemical energy from natural gas into electrical power through combustion and electromechanical processes. Shandong Kecheng Electric Power Equipment Co., Ltd. is a manufacturer specializing in the production of natural gas generators. Today we will explain the working principle of this product.

Working Principle

1.Fuel Intake

Natural gas enters via pipelines or tanks, mixing with air in precise ratios using a carburetor or fuel mixer.

2.Combustion

The air-fuel mixture ignites in the engine cylinder via spark plugs, driving pistons downward.

3.Mechanical Conversion

Pistons rotate the crankshaft, transforming linear motion into rotational energy.

4.Electricity Generation

The crankshaft spins the rotor inside an alternator (e.g., Stamford/Marathon), inducing electromagnetic current in stator windings.

5.Voltage Regulation & Output

AVR (Automatic Voltage Regulator) stabilizes output to 120/240V AC.

Kecheng Natural Gas Generator Specifications

Model Series	Power Range (kW)	Engine Brand	Alternator	Dimensions (L×W×H, mm)	Noise Level (dB)	Fuel Efficiency (m³/kWh)
NG-150	20–150	Volvo	Stamford	2200×800×1300	65–70	0.25–0.30
NG-500	151–500	Cummins	Marathon	3200×1100×1600	70–75	0.28–0.33
NG-2000+	501–3000	Deutz	Lanzhou	Customized	75–85	0.30–0.38

Natural Gas Generator

Advantages

Cost-Effective: 40% lower operational costs vs. diesel (based on U.S. DOE fuel pricing).

Eco-Friendly: 30% fewer CO₂ emissions than diesel equivalents.

Reliability: 99.6% uptime in telecom backup applications (validated by China Railway Group).

Maintenance: 1,000-hour service intervals (50% longer than diesel).

Applications

Industrial: Continuous power for mines, factories (e.g., China Communications Construction).

Healthcare: Backup for hospitals (tested at Shandong Provincial Hospital).

Infrastructure: Rail/road construction sites (deployed by CSCEC First Group).

Frequently Asked Questions

How does a natural gas generator work during power outages?

An automatic transfer switch (ATS) detects grid failure, signals the generator to start within 10 seconds, and routes power to critical circuits. Post-outage, it reverts to standby mode.

Can natural gas generators run in extreme cold?

Yes. Kecheng units include:

Engine block heaters (-30°C operation).

Anti-icing fuel vaporizers.

Arctic-grade lubricants (tested at -40°C in Harbin).

How do emissions compare to diesel generators?

Natural gas generators produce:

25–30% less CO₂.

90% fewer particulates.

Near-zero sulfur oxides (SOₓ).

Verified via ISO 14001 environmental testing.